Magnetic Polisher
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- Опубліковано 19 лют 2013
- Magnetic Polisher that I designed. For polishing any non-ferrous metal, casting, jewelry, etc.
In response to several people asking about how the magnet polarities are set/arranged, I thought I'd post a comment to discuss the details. First off, the magnets individually need to be polarized through the thickness of the magnetic (i.e. North-south poles are arrange top to bottom, NOT lengthwise.) After that, the magnetics should be mounted on the arbor disk such that the polarities topside alternate N-S-N-S. The magnetics should be arranged such that when rotating they occupy most of the circular region of rotation - if you look at my video, and see the pattern/arrangement, I've found that this staggered geometry works EXTREMELY well. Hope this helps everyone! Brian,
LIST OF MATERIALS:
I purchased almost all materials from Ebay (here is the general list):
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Framing is 8020 Inc. Alum. extrusions, (ebay seller 8020incGaragesale)
I used series 1010 aluminum extrusions, and 8020 tri-corner connectors, however I'd
recommend the following joining plates instead:
Ebay, Aluminum 5 Hole "L" Joining Plate 10 Series 4081 ANO (preferred) Price is cheap
too,, or check out these other parts/joining plates:
Aluminum Corner Gusset 10 S 4132 N, or
Aluminum Corner Gusset 10 S 4136 N, or
Aluminum Corner Bracket 10 S 4115 N
Magnets are from magnetics4less (part number: NB057-0-N48, qnty 4), mounted in
staggered configuration N-S-N-S poles. (polarized through thickness, NOT LENGTHWISE)
Motor (Ebay): 90VDC, 1/3HP (or less) is fine. Max RPM is 1750
Motor Controller (Ebay): K&B KBIC-120
Arbor Disk (Ebay): I was able to find a 12" sanding disk arbor wheel on ebay. However,
grizzly machinery website has a pretty cheap replacement aluminum sanding disc for their
Disc sanding machine. Might want to check out the following link www.grizzly.com/products/G7297... Look at the part# P7297025.
I then cut a circular piece of MDF and mounting that on my alum. sanding arbor. Tapped
pennies on the surface at different locations to balance out the disk. Removed the pennies
and placed wood screws at those locations. Took a LONG time but with patience, it can be
done.
Final Dimensions of the machine: Top surface 11"x11" and the height of the machine is 13" - Наука та технологія
What a cool idea! I never would have thought of that in a million years.
Unfortunately you're giving me too much credit - these machines are in use and widely available by commercial folk, however I did improve on the theme. :) Thanks for watching!
Impressive polisher / tool for sure. As a fellow DIYer i can see the amount of work, effort, thinking & design that you put into this, well done. For polishing brass for reloading I'm running a 30RPM geared motor for my process, works just great. Thanks for your time to share.
Hey! and thanks for the nice comments - it's appreciated.. For your reloading brass, are you tumbling, or magnetic polishing? I've got a very large vibratory tumbler for my brass, and I typically use corn with that - I have not tried
magnetic polisher for in cleaning my brass though,,, maybe something for me to play with. :)
Hi, I'm using a "wet method" of tumbling my brass. Rotating bucket attached to a geared 30 RPM motor. In the bucket are stainless steel magnetic pins to clean the brass along with dial soap & LemiShine to remove any water spots on the brass. I generally tumble about 250+ pieces of brass for around 3-4 hours. Rinse, separate the SS media pins and then go about my reloading process. Dry media using corn cobs or walnut hull bits will do an OK job but wet tumbling does a fantastic job & the brass case & primer pockets come out amazing. I built my tumbler including acquiring the motor for under $75, its crude but works and the results speak for themselves.
wow, nice work. thanks for posting
That is the coolest thing! I so want one.
Muchas gracias por compartir tu trabajo! Es excelente!!! Felicitaciones desde Uruguay!!!
¡Gracias por ver mi video, y de nada!
Nice magnet arrangements.
Thanks for noticing! Ive found that this arrangement works best for this size polisher.
Hey - glad you like the polisher and thank you for your message. I'll give ya the short list, and if you need more I'll post more information: Magnetics are from magnetics4less (NB057-0-N48), motor is from ebay (90VDC, 1/3hp or less even is fine), framing is 8020 Inc extrusions 1010 series (ebay: 8020incGaragesale), controller is KBIC-120 (also from ebay), and I found a
10-12" disk sander arbor (ebay cheap or web search). Let me know if you need more information. thx!
Why my Ikohe magnetic finisher is starting to slip sometimes. I have to start it couple of times before it starts working properly it makes a noise like it something is slipping.Appreciatte it if you answer
Very good work Brian.
Thank you
thanks for your prompt reply brian
Great video, thanks
Motor is a 90VDC, (1/3hp, max rpm is 1750). With the K&B motor controller, I can spin the arbor at any rate (0-1750 rpms). I have noticed that when you add water/soap mixture to the bowl, that drastically changes the rate the pins move, and having the motor controller allows me to adjust the speed to whatever I feel polishes the best. That changes all the time, and depends on the size/number of the pieces I'm polishing, as well as if I'd like to add more pins.
In response to several people asking about how the magnet polarities are set/arranged, I thought I'd post a comment to discuss the details. First off, the magnets individually need to be polarized through the thickness of the magnetic (i.e. North-south poles are arrange top to bottom, NOT lengthwise.) After that, the magnetics should be mounted on the arbor disk such that the polarities topside alternate N-S-N-S. The magnetics should be arranged such that when rotating they occupy most of the circular region of rotation - if you look at my video, and see the pattern/arrangement, I've found that this staggered geometry works EXTREMELY well. Hope this helps everyone! Brian,
Perfect ! Would you be interested in make and sale one for me ?
You did a fantastic job man. I really like that setup. What all have you tried to polish with it? I'm curious what all it would work great on or if there's something it doesn't work well on?
Hey, and sorry for the delay in getting back to you. I've polished many things! the important thing you have to remember, is not to try polishing anything magnetic. (i.e. iron, or ferrous based.) Precious metal, this type of machine works fantastic on. I think it would be more appropriate said that it's less of a polishing machine and more of a "cleaning" machine. I use my machine primarily to clean new/rough lost wax castings (white gold, silver, bronze/brass, and even quite a bit of aluminum).. After the casting process, there always exists a bunch of caked on mold material/plaster and this machine takes care of that problem in a nutshell. I throw the pieces in the machine, walk away, and a couple hours later - completely cleaned. Then I either hand polish on the wheel or transfer the pieces to a vibe/tumbler type of polishing machine to finish up.
Great engineering. Congratulations.
Glad you liked it, and if you need any information on how/or what parts to use to build it, please read the comments below - most of the part numbers and details are available. Thx for watching my video.
Hey, Thank you very much for the info. I did buy the motor, the controller, and the frame parts. Would you please send info about the dimensions of the frame. Thanks
so awesome! thanks for sharing!
Leonid Dementiev Thanks for the comment - and thank you for watching, hope this video helps you.
Like your design.
+Vatsek Thanks - appreciate the comment.
now that is bad ass !
Thanks for watching
Hey, thank you very much for the info. I bought the Controller, the Motor and the magnetics but the frame i did not find it cheap, and some parts of the frame i couldn't find like that little top square thing, which hold the frame together. And if you can, please, would be kind enough to provide me the dimensions of the frame. Thank you.
Hi! It's a wonderful job! How did you get the balancing of the disk?
Hello Numa - not sure if this type of polishing would work for large alloy rims. If you have smaller model size alloy rims (say up to a few inches in diameter), then yes you could use a magnetic polisher. As long as your metal object that you'd like to polish is NOT a ferrous metal (i.e. magnetic). Objects made out of alum., brass, silver, gold, platinum can be polished in this type of machine & of course it can only polish smaller pieces. Hope this helps! thanks for watching my video.
That's pretty brilliant, Brian. You should take some time to clean that build up a little more and then file a provisional patent for that. You've really got a great design and you deserve all the credit for it. Congrats!
+Rodrigo Sagebin Hey! and thank you for your comments/support. Unfortunately, I can't say that I thought of this idea. Magnetic polishers are quite common. I designed my own rather than spend a lot of money on one already built. But I do like the design too, and I appreciate you noticing that as well.
No problem. You can patent any modification if it's non-obvious and inventive. There are like a million patents on syringes, for example. A provisional patent can be done on your own for a few hundred bucks and it'll give you a year to file for a full patent while keeping your original filing date. Just a thought.
+Rodrigo Sagebin hey, I really appreciate you sharing that - I did not know that. I should take some time and learn more about patents and the whole process - I've got a ton of projects I'm always working on that would probably be interesting for a lot of folks. thanks again!
Hey BuDWiskey, congratulations!! you did a very good job. I would like to know, if you allow me, where did you find the motor, the frame and the controller. I do work as Jeweler and found it is very expensive to buy a magnetic polisher. I'm planing to build my own. Thanks.
In response to several people asking, I've included a fairly comprehensive Parts List, as well as my sources or recommendations for suitable replacements. Please look under the public details/description just under the video. Please don't hesitate to ask for any other details. Regards Brian,
Hi Brian
Excelent work!
How is the polarity of the magnets set?
Many thanks
Bruno
That's so cool !
Thanks!
hi, congratulations very big idea, would i polish a alloys wheel and what do you use for polishing
Wuo I don't get tired of watching the video for me it is a great machine for me it would be very useful I will look for someone to thank me for that video
Thank you!
Dude that's awesome.
Thanks for comment!
Can you show us a part before and after being polished?. I have watched videos about the process, but they use water and a rare subtance. ¿What is that substance?
That's a great bit of work! It eliminates the vibration problem of the 'normal' system.
Off to the workshop to build one my self! Thanks for posting!
A before and after of the polishing results would be appreciated?
Tony Vincent Hey Tony - and thank you for watching - this machine is a good design, and I haven't had one lick of trouble from it. Just keep in mind, you can only polish or clean non-magnetic materials / (nonferrous) metals - otherwise you'll get a really neat show. :) If you build one, let me know if you have any questions.
Brian Wisotzkey Thanks Brian. I have some 40/20/10mm neodymiums that I can use to build a small version. Alluminium is what I mainly clean so no problem.
yeh sure. at the time I was buying 1010 series alum/parts, they were selling unfinished "tri-corner" connectors for a cheap price. I bought a bunch and used those for the corners, however there are several other/simple ways to connect corners/ends. Keep in mind, that your size is really up to you and also needs to be the right size to accommodate the spec. motor you have. However, my dimensions: Top container surface (LxW) = 11"x11" and the height of the machine is 13" from bottom to top.
Hi very impressed with your polisher and going to make one my self going to use a tried mill that I got off crags list for free just wanted to know if you hoked up the motor direct or used a belt>
Hello and thanks for your comments,, and to answer your question - I hooked up the motor directly. With a DC motor controller, you'll be able to make adjustments in the RPM's of the motor.
Good luck on your build and if you have any more questions - just let me know.
That is so cool
thanks Brian
The commercial ones I've seen demonstrated add water to the pins and a small amount of polishing liquid. Do you do that?
Yep, you got it. Water with a tiny few drops of detergent, and let the magic happen.
how would you polish something larger like a stainless steel water bottle mechanicly
Probably not the best method for that. A vibratory tumbler with ceramic/porcelain beads would probably do a lot better.
Excellent build! I am planning my own brass tumbler for cleaning cartridge cases and was thinking of a similar design. But, I'm not sure if this design would be too aggressive and peen the cases as well as cleaning them. Can you comment on this?
I don't think it would be too agressive, if you'd use small enough gauge polishing media/pins. However, where I think the problem may occur is, how large your brass is and how many. I know for my 45 ACP, I'd probably only be able to throw in a box or so. Where as your tumbler and a burnishing compound or soap, you could rotate a larger quantity. I've actually built a multi-barrel rotary tumbler which you might be interested in - I can tumble several loads at once.
Brian Wisotzkey
Yeah, I'd like to see your tumbler design. Thanks.
regarding the Framing and connectors can you tell me plz how many from each part i never build something like that
do u have any vedio for building the fram?
thanks again amazing vedio
+Body Mind & Beyond Clinic If you look down below my video, I have a really detailed description and "List of materials" needed to build your own. Look under the "Published on Feb 20, 2013" and click "show more" under that, and youtube should pull down the entire list of materials and descriptions.. Let me know if you need any more details or help. Thanks
did u have a list of the material that i need for it and where can i buy them? i really aprecieted!!
***** Hello and thank you for watching my video. It's a great machine and I don't think you'd be disappointed if you built one. Please take a look above under the main public description, I've added a pretty good list of details and materials. If you need anymore information don't hesitate to reach out and ask.
Hi Brian, nice build!! have you tried it with any shot/heavier stainless media like balls or jewelers media? Do you think the magnets could "throw" such media, or would it work with a heavier motor and stronger magnets? Thanks, Michael
Hey Michael! and thanks for your interest. To answer your question, I haven't tried heavier media - however to throw heavier media, the motor should have no problem spinning, but the magnets - you'll probably have to get your hands on the strongest rare earths available. First thought that comes to mind - you'll need to use less media. Heavier media would probably not necessarily polish but work harden/shot peen/maybe even deform the surface of the work pieces. Let me ask ya - are you looking to clean, polish or harden?
Brilliant!!!
Thanks - just made some personal improvements on a tool that's widely available.
Hello Brian, thank you for your kindness I found power magnets and a washing machine motor that produces 2800 rpm motor hope this goes well.
I need to know at what distance are the magnets from plexiglass
I want to make this machine to clean shells 9x21
Hello thanks from Italy
You want the magnets as close to the plexiglass as possible, without touching the plexiglass, when the bucket/media is in place. Hope this helps - Brian,
I need more information ....ex. rpm .... thank you
Can you explain how you mount the magnets and what polarity?
I can say that they have the power of attraction magnets?
Greetings from Italy Massimo
Why and what happens when magnetic finisher starts to blackened the jewelry?
Not sure - sounds like some form of chemical reaction/oxidative process going on. Sometime, dissimilar metals produce what's called galvanic corrosion.
Can you show polishing some thing
GTS!
for best results, you must install a cone in the center
Hello and thanks for the great video, I would like to know what power are magnets
Hello
Thanks for watching: the magnetics are from magnets4less (p# NB057-0-N48) Super Strong Grade N48 Neodymium Rare Earth Magnets. Br MAX: 14200 gauss, approx. pull force = over 80 lbs. Hope this helps - Brian,
Nice one
Thanks man!
Please make a video on the construction of the aluminum frame structure.
If I can find some time - I will do that. But that also means I'll have to dis-assemble the darn thing. 80/20 aluminum is pretty easy to work with.
Hello Brian, may I ask you to share same experience about the optimal rotation speed. I want to build one using an asynchronous constant speed motor and I have two possibilities - 1450 and 2800 rpm. Which one will be better for brass case polishing/cleaning? What about the motor power, 250w or 370w?
Hey and thanks for your inquiry - I'm guessing you'll be using an induction motor, something similar to a table saw motor or such. I think I'd tend to go with the 1450rpm, because if you go with a heavier media, starting the motor might become a more violent event. Haven't done the calculations to watts, but for the treadmill motors (i.e. 90VDC motor), one wouldn't need more than a 1/4 HP, and in my case I just used what I could find the best deal on, which turned out to be 1/3 HP. You'll have to let me know how your project turns out with the constant speed motor.
The day you end up selling this you can count on me to buying one.
LOL, you're awesome! Thx
How well are those magnets held down? There is a lot of centrifugal force going on here. I hope you built a lid because if those pins escape, they are going to be moving rather fast.
+tarstarkusz Agreed, there is considerable force on those magnets, with even more sheering force when the polishing media is place on top. I've bolted the magnets down with Stainless socket fasteners and lock nuts).. Even still, I've thought about cnc'ing out or routering out shallow pockets for the magnets to partially recess into - added safety measure. Haven't yet done that, because the machine/arbor wheel is solid and nothing has loosened up. Thanks for your input though. And yes, when polishing, I do place a lid over the container,,, however keep in mind, when polishing the pins and the object your polishing are in a soapy/water solution.
thanks for the info
so do u think KBWM-120 DC motor control 9380 NEMA-1 enclosure
will work with B&B Motor Adjustable Speed Drive Motor DC 1/3 HP 90 VDC 1725 RPM. regarding the motor control on ebay they say (This Drive will not operate without a HORSEPOWER RESISTOR and ARMATURE FUSE.)even for the one you recommend. did u buy anything extra for the motor control?
+Body Mind & Beyond Clinic Hello and thank you for you interest in my video. I took a look at the KBWM-120 and I like it A LOT. I think that'll work great for ya, and yes you are correct you'll need a fuse and HP resistor, both need to be match approx. to your DC 90V motors HP rating. This motor driver is good up to 1/3Hp motor, so you'll have to find something preferably under that or at 1/3Hp.. The manual for the driver has the fuse and resister chart for you:
motorsandcontrol.com/media/document/file/manuals/9380.pdf
Resister (1/3hp motor) = 0.035 Ohm
Fuse (1/3Hp motor, 3.3Amp current) = 5Amp fuse (you can find these resistors on ebay or Surplus Center typically has them too.)
Aside from that - you should be good to go - nothing else is needed. Let me know if you need any other information.
You did a great job building it, what's that motor worth?
Hey Thanks for the compliments - the motor, it's a 1/3Hp 90V, and I want to say I spent around $70 on ebay. I do remember getting a deal on it though - some days you can really find good deals, and some days you don't. Anyhow - thanks again for you interest, and if you have any other question, don't hesitate to ask. if you look up above under the "Published on" section, click the "show more", I've listed a pretty good parts list.
Great design and construction, Really first rate
Great video (as far as it goes) but I'd love to see a sample piece put through with specs re: time and RPM
Also, is the motor driver your design?
just answered my own question... K&B KBIC-120
+MrRUKidddingMe yep - you got it. Thanks for checking out my video, and yes, I'm working on that before-after video for everyone, and thanks for the the suggestion of putting in specs (time, Rpm, etc) - will do that.
Yes I have tools and budget I think up to 300 is the max I will put maybe a bit less
Do have any thing on KB speed control I bought 2 motors of eBay and 2 aluminium disk for sanding. They are both 8 in with 1/2 in spindel. I thought I would use those for the turn table. On the KB speed control is there a model number and do you know if they will work in both directions Orr do I need something to control direction. I want to make mine run in 2 directions. Also you said you bought the tri corner connectors for the aluminum. Where did you buy them I checked with 8020 and ebay and they sell for $17.95 each. That's pretty steep for 1 tri connector.
Hello and I'm glad that your building one of these things. It's a great machine. first off, the K&B controller that I used was the KBIC-120 and it is reversible if you get creative. I did wire my motor/controller/and a switch to allow me to reverse motor direction. you'll need a dbl pole, dbl throw switch (such as www.surpluscenter.com/Electrical/Switches/Toggle-Switches/DPDT-CO-10-AMP-TOGGLE-SWITCH-11-3261.axd).. and wire it up such that the switch flips the motor wires. second thing to mention - I would not use the tri corners just because they are expensive. I was able to get unfinished corners that were significantly cheaper - they look good, but suitable cheaper solutions can be found (i.e. corner plates/gussets/brackets). Hope this helps ya, if you need more details on the switch wiring or whatever - let me know.
Thanks for the info. Yes I called 8020 and the unfinished are now more expensive because they now come anodized and they charge to remove the finish.
Michael Shelton Ah - looks like I was just lucky, and squeezed under the door on the ones I got. Just go for the plain old 90 deg and straight joining plates - it'll still look good, and probably be even stronger.
unreal. I love a mind like that. :)
Lol - thanks for the compliment!
Where's the final result of what you polished? We want to see how effective it was, please. Very nice polisher btw, I see that you are good at design and building things.
+Gort Newton Thanks for your comments - its appreciated. I've got that "before and after" polishing video in the pipeline now. I'll be casting a number of bronze pieces that'll need to be cleaned and polished,,, and this machine will certainly highlight it's capabilities on those pieces. Thanks again for your comments and your interest in this video.
How did you get Stainless pins to attract to a magnet?
***** Good question!! Might be a lesser stainless.. Here's the link to the polishing media: www.riogrande.com/Product/Stainless-Steel-Shot,-50-x-03mm/339356?Pos=5
Brian, what screws or bolts did you use to join the aluminum parts together? Also, did you choose to use aluminum to avoid interaction with the magnets?
+Kufunklefec Ok - the screws and related hardware, as well as the aluminum extrusion, I originally prucased off of ebay and I got all pieces from 8020 inc. I didn't have any reason to build the machine with the aluminum extrusions other than the stuff is SO cool and versatile - it's like the erector set for adults - fun fun fun. All the bolt/nut hardware is 1/4-20 button head socket (allen wrench to tighten). You can get that from 8020 on ebay or BoltDepot.com is my go to source from most of my hardware. Because the machine involves water, I typically buy stainless bolts/nuts. The nuts are a type of T-nut that you should just buy from 8020 on ebay. Save yourself time and headaches. wherever you order your 1/4-20 bolts from, just make sure you buy 3/8" and 1/2" Lengths. And maybe buy a 50 pack of each. When you're on a roll and putting things together, you don't want to have to re-order and wait another few days.
Haha yeah, the extrusions do remind me of that. Expensive though. I'm thinking of just welding up a frame from steel square tubing instead since it is cheaper.
How did you attach the magnets to the board safely? I've got a tiny magnet that is 1/2 an inch by 1/2 an inch in a cube form and it is scarily powerful. I can hardly imagine handling a 1x2" magnet so close to 3 other super powerful ones. One mess up and your fingers are forfeit.
Also, how many pounds of pins do you use on average? What diameter size are they?
I bought a motor and the magnets you recommended. So I'll be putting my machine together in the next two weeks when the parts arrive.
+Kufunklefec Attached the magnetic one at a time and very carefully. hardest part about the magnets are actually getting then apart and not letting them snap back together and damage each other. As far as the pins go, I purchased two bags of each size available. Take a look at the link,,,, www.riogrande.com/category/tools-and-equipment/polishing-and-finishing/tumbling/burnishing-media/stainless-steel I bought both the 0.5mm and the 0.3mm.. However, depending on the size container/bucket, you might need more or less. I typically use my food processor bowls the most (+6" diam.) - if you watch the video, it's the bowl with the center cylinder - this concentrates the pins.. or forces the pin and part I'm polishing in the same space - definitely speeds up the cleaning/polishing time. Not suggesting this bowl, but maybe one like it: www.seneca-river-trading.com/w10461926.html#.VnCNFEryu5M Needs to have a FLAT bottom though..
It would have been nice to know some of the build processes and to see some polished results but good job
Yeh I can agree with you there - I posted this video for some friends/hobbiest that wanted to see the machine - video is more a simple show and tell - if I would have a chance to do it again, I'd make a detailed how to construct your own - I think it would help a lot of folks. Thanks for your interest though.
Hi, congratulations on your machine, I'm trying to do one on my own. I'd just like to ask you what's the magnetic material you used? I coludn't understand from the video.
Hello and thanks for your interest. The magnets are rare earth magnets. If you look under video or above these comments, you'll see a "SHOW MORE" under the "Published on" section. I have a complete list of all components and in some cases I even put links to the items you need to build your own machine. Let me know if you have any other questions or need help. Regards
Brian
Thanks man, I've checked up the list. What about the material you used as abrasive? I thought stainlees steel wasn't magnetic
yep - you are definitely correct. However I think they're made certain blends of stainless steel that is magnetic to a degree?. maybe. Not sure how stainless/anti-rust it is though. . please find the link below to the jewelry supply company where I get the media from:
www.riogrande.com/Product/Stainless-Steel-Shot-50-x-05mm-Pin/339355
Thanks a lot man, I'll check it out and tell you how my machine turned out. One last question, how's the result of the finishing?
Sure, don't hesitate to ask if you have any more questions. Not sure what you're gonna use the machine for, however, this machine is fantastic for "cleaning" newly casted pieces or cleaning oxidation off of parts.. It leaves an extremely smooth surface on the part, but something to note, it leaves a frosted finish - not mirror.
does it remove a lot if silver?
If using a very lite/small pin - it's very gentle, however you can use heavy gauge pins and get a more aggressive abrasion.
Hi Brian ! Before buyng the engine I have a question: is there a possibility to connect speed controller to any engines or there is some specifications I need to pay attention ? Thank you for your help.
No - speed controllers are specific, and do require a specific type of motor, with specific ratings. If you're going to use the KBIC120 speed controller or something similar, you'll need a 90Volt DC motor. Hope this helps, and please look under my "details/show more" beneath the video, I have a list of all the parts/part numbers that I used. Hope this helps, and have fun.
Brian Wisotzkey Brian, I looked through the list you made. Unfortunatly my knowledges in electics is very poor. We have 220 V system in my country, but as I understand we can connect 90V with 220V through the adaptor? I'm thinking about this engine:
www.ebay.com/itm/Johnson-220-VDC-Electric-Motor-220VDC-12-Pole-DC-Hobby-Project-Generator-/271399449717?pt=LH_DefaultDomain_0&hash=item3f30aaf475
or this one:
www.ebay.com/itm/BALDOR-SPEC-33-2381Z134-INDUSTRIAL-1-3-HP-90VDC-DC-MOTOR-1750RPM-/111408666957?pt=LH_DefaultDomain_0&hash=item19f079594d
What will be your advise, Brian.
Thank you.
Dmitry Martinov Hey Dmitry - while this isn't that difficult, wiring up a motor/speed controller does require some electrical know-how.. Having said that - just be careful if you do decide to build this setup. Now - if you're using 220V, then you'll need a KBIC240 or KBIC225 - these are speed controllers for 208-230VAC input (the wall), and your output from this controller will go to the motor. The Motor you'll need for either of these controllers is a 180VDC motor, and they're all over ebay. I'd recommend a motor of 1/2HP or greater. ANyhow - hope this helps and good luck - this is a fun project that will give you a good machine and you'll probably learn a lot. Let me know if you need any other information.
Is the adhesion force important? What strength of adhesion is recommended ?
Thank you
aram tcho Hello and thank you for your questions/interest. As far as the magnetic force/pull is concerned - the bigger/larger the pulling force, the better. The magnets that I purchased were N48 (2"x1"x0.5"), and the have a pull force of 80 pounds or more. Magnet part number NB057-0-N48 from www.magnet4less.com
thank you for your fast answare.
so this is superior to a chemical bath for silver cleaning?
It depends what you're trying to clean off of the silver, and how many little nooks & crannies your work piece has. This polisher is abrasive (like sand in the desert). It leaves a frosted finish, and cleans off casting mold investment really well.
I'm thinking I have an old ceiling fan that I can convert to this. 3 speeds, and quiet.
Sounds like a great plan - good luck and let me know how it turns out.
Por gentileza! Quais as medidas dos imãs?
Look at the description for all part numbers and vendors where you can buy the parts. Hope this helps.
nice work how ensambling scuare aluminum please thanks
Assembling is straight forward - I used all 80/20 inc. aluminum. Please go to the following website for tutorials..
www.8020.net/Training-2.asp
thanks also need learn ensambling magnets please
For holding the frame together, rather than using the "tri-corner connectors", I'd recommend the following joining plates instead - checkem out:
ebay, Aluminum 5 Hole "L" Joining Plate 10 Series 4081 ANO (preferred)
Price is cheap too. or check out these other parts/joining plates:
ebay, Aluminum Corner Gusset 10 S 4132 N, or Aluminum Corner Gusset 10 S 4136 N, or Aluminum Corner Bracket 10 S 4115 N
Anyhow - hope this helps you. Let me know when you get the thing built, send me a pict.
Ciao Scusami che altezza ha questa macchina?Grazie.Da quello che tu dici è 13x11 ma credo ti sia sbagliato .
I can't see the relation polisher whats? and how
+cesar Vazquez This machine will polish or clean any material which is not magnetic - it accomplishes this through abrasion, similarly to how blowing sand in the desert will erode away even stone, mountains, or pyramids (if you're in Egypt). Typically when you make a piece of jewelry (metal casting process), there is unwanted material on the finished piece which needs to be cleaned/polished, and a magnetic polisher is perfectly suited for this task.
only I want someone to splaing and now I am clear thank so much
I would like to know where you get your extruded aluminum parts, if you're including those with the $150 estimate... Granted, I'm commenting from 9 years deeper into the abyss than where this was posted.
Hello! And thx for watching this old video.. back in the day, you could buy the aluminum right off ebay.. it's 8020 aluminum, and now you can buy directly from them. Hope this helps.
Downtown chicago
So how much total ?
Ok, so I did a detailed look at the price of parts out there and I made up a price list for the parts/components that I found and all together cost is about $465-$485. And that's not included S/H to chicago. This machine is pretty heavy, and I can't imagine it costing less than $50 to ship. I know that's probably more than you'd like to spend, however that's what it'll cost me to rebuild the machine - and that's not taking into account my time involved. So let me know what you think, and maybe we can move forward. Thx
How much u want to sell it for ?
Hi Brian, How about make one for me. Really need one ...
beycanoz How much would you be willing to spend/what's you budget for a custom machine like this? I might be willing to build up one.
400 - 450 ... Hope you are not too far from New York. Shipping going to be very expancive
beycanoz Send me a message with your email address and let me look up a few parts and get some pricing together - I can then email you a cost breakdown - maybe I can work a setup for you.
I send you massege by using ``google Hangout`` that you can see my e-mail address. Thanks Brian. Hope to hear bak...
Good lord why did you use extruded aluminum for the base? I like the look but is there any actual purpose for it?
parker benz actually, there are reasons why I used extruded aluminum. beyond the simplicity, I like working with alum. and believe it or not premium pine lumber from Home depot would have almost cost the same. all other reasons aside, I wanted to be able to adjust the motor position relative to the platform, and the alum. profile/t-nut configuration helps make that simple task easier.
Brian Wisotzkey didnt know the cost was comparable to lumber. I can agree that it is very fun to work with, and quite easy to work with if you have the right tools.
Thanks for your interest and comments - there's probably 1/2 dozen ways to build this machine, and one way is probably just as good as all the others. I'm also sort of addicted to the 8020 alum. extrusions. :)
Brian Wisotzkey yeah, I can see why, there are just soo many uses for it, ive always thought of it being a little expensive, but tbh have never looked up prices for it!
Davy! That's fantastic - quite a cost savings also.. Love the simplicity of your design and use of standard around the shop left-overs. :) By the way, I couldn't help noticing a pretty nice induction coil/heater on your workbench in the background. I've been toying with the idea, to build myself one of those too. Great minds think alike.. definitely keep me posted on your polisher - lookin good!
last time I checked stainless steel is not attracted by magnets?
+mary Jonker Yep, I know, maybe they're a stainless derivative or similar... Check out the link to the media: Magnetic Polishing media (stainless steel)
www.riogrande.com/Product/stainless-steel-shot-50-x-05mm-pin/339355?Pos=5
How I can buy one from you
Thanks for asking - and I wish I had the time to build them - unfortunately I don't. :)
When we watch this video what would be the benefit yea......
How can I buy a machine from you?
I would certainly like to sell you one, but I don't have the time to build one. Sorry.
How much cost
$150 to $200 USD
How did this end up working?
Hello and thanks for your interest - it actually works VERY well for cleaning newly casted parts. The abrasive nature of this process is similar to sand in the desert eroding rock. It leaves the metal work-piece extremely clean with a fine surface finish - best described as frosted in appearance. easily polished though.
Thanks for the info, I plan on building one. I may just use wood for the frame or even steel tubing. Aluminum extrusions has gotten kind of expensive!
thaks brain to upload this video i made one by my self
That's terrific Mustafa! Good job - I hope you get a lot of use out of the machine. Thx!
this video needs a follow up vid showing it strip rust of bolts or something like that
+tony Pettersen sorry, but this machine is not intended for cleaning steel or any magnetic objects that may be rusty. The machine is for NON-Ferrous metals/material only (Gold, silver, brass, bronze, or aluminum), otherwise the machine will spin your object at the rotation rate of the polisher, and probably actually damage the part and the machine.
Have you clean anything yet? Post a video cleaning something. Thanks
Yes, I definitely have used the machine for clean parts. Next time I use the machine, I'll make a video, and show the before and after surface finish.
cool
If that thing spins any faster, he may end up on The Twilight Zone🤓
Thanks for watching!
Can you add water 💦 and soap. Look 👀 like it works .
Thanks for your comment, and yes - in fact that's how I use it, with soap and water - works terrific for cleaning small pieces and parts.
Hello sir
anyway
for god sake..please show the stuff u polish with this thing...dont just show spinning pins..omg..the video is not complete
+Azrat Akbar sorry - I should have considered including that - however this video was mostly posted to show how one might build their own machine. I wanted to share the structural components and show the summation of parts. These machines are pretty common and widely available (however expensive), and if you're doing project work that requires a magnetic polisher, then you'd probably also be familiar with how things look when they come out of the machine. Typically people use these machines to clean and polish newly molded/casted jewelry.
+Brian Wisotzkey Not a fan of Azrat's slightly rude way of putting it but I would also like to see some examples of things you've polished with your machine. Any chance of a short followup video?
I'm in the process of finding all the components so I can make one of my own.
+Kufunklefec Thanks for your interest in my video and the polishing machine. I certainly welcome any/all comments, rude or polite can be just as informative and helpful to me for future videos. Rather than purchasing overpriced tools, I'll typically design and build my own trying to save money. I've got more than a couple videos in the pipeline and I'll definitely include a Magnetic Polisher follow up. Thanks again for the comment and support, and good luck building yours - if you have any questions be sure to ask me, and let me know how it turns out.
+bobothecreepyclown sorry you don't understand
@bobothecreepyclown Pointless, indeed. Unless you're interested in how you might *make* a magnetic polisher. Which is my interest and how I got to this video. While some before/after examples of what the polisher can do would be a great addition, this video as it stands is clearly not pointless. But it might not be pointed at you...and I think many of us are OK with that...
how r u Brian
can u tutor me to build it
i never did anything electrical. so i need your help.
and I'll pay you per Hr
+baraa alnabulsi Sure! Just let me know how I can help and what you need help with and I'll do my best to help ya.
can you send me your cell # so i can discuss it on the phone ?
my email is tc1_sk@yahoo.com
thnx alot
Just Finish it! Where can I send you a pic? Maybe you can see a video of it here: dropbox.com/s/xibmv8eizpbjvb5/2013-08-28%2021.24.27.mov
Thank you very much for your help.
Fantastic! Couldn't watch your video. If you have time, snap a photo and email it to me - would love to see the design. bd_ski@yahoo.com
Glad I could help. I'll slowly be putting out some additional videos of some other jewelry/casting equipment I've built - might want to check back in from time to time.
Oh that is more than what I can afford
I know it a good device, but I can't go beyond 350 . That is my max
Can you help me to build it
I will go for cheaper stuff !!!?
And maybe lighter
Actually, if you build it out of wood, that would certainly cut the costs down. I'm guessing that you need help in the electronics portion of the build? or what would you need help in doing, specifically?
I guess main the electronics. But also the magnets. As I said I can pay u for ur time. But let's try one last time. How much would u sell it for with shipping. Hope we reach understanding. I can help u build a vacuum machine that I build it is better than what's in the market. It is used to debubble silicon for molds or casting material for jewelry.
lol - that's funny actually. I also built a vacuum casting /degassing system.. I do lost wax casting, and I also use silicon quite often - so I'm very familiar with the vacuum systems, and I've
got an over-engineered one. :) Selling price of the existing magnetic polisher would need to be around $475 + S/H.. I really did run the exact numbers for building a new one, and buying current parts/components off of ebay and some surplus sites, and I cannot build it for less than $455 exactly. Sorry. :(
lol so your a jeweler heheh
I'm a jeweler i started my small line
ok if i wanted with out the aluminum fram how much would i save ?
regarding casting and wax cleaning and preparing for casting i have alot of tips and trics if you are intrested ...
That's too funny - well I would make an educated guess that if someone was looking for a magnetic polisher, one would probably be using it for jewelry related stuff. :) and absolutely,
I'm always interested in tips and tricks, if you've got any. Now - if you'd want to go wood frame, instead of aluminum, we could probably cut off $100-$120. So, I'd say we could probably make one for around $365 + s/h. I know you're probably thinking that's still expensive, but just the motor and controller are probably going to cost $200+... ANyhow, let me know what ya think.
I,ll be happy to share tips with you. but we have to find a better way to comunicate. would u like to excahnge phones ?. If yes send me ur # to tc!_sk@yahoo.com. regqrding the polisherd I'm confused. but i have great idea to save monry would love to share it in person
hey - not sure what you're confused about - I was suggesting that the wood construction (frame) would be able to save you probably $100-$120 on the build. I think that wood will stand up just as sturdy as the aluminum framing. Definitely can talk to you over the phone, and I'll email you that information asap.