Sharpening A Helical cutting edge \ regringing endmills
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- Опубліковано 13 лип 2018
- Been a busy week for sure. Learning to sharpen the helical edge of endmills this week and from the looks of things I believe I am getting the hang of it. Lots going on here at home this week, Abom79 is visiting the shop and we have a meet and greet in Louisville KY Saturday July the 14th at 6pm. This week is my wife's birthday also. Did I mention I am also painting the living room and trying to put hard wood floors in the house also?? :-).
Big thanks to all my viewers / subscribers and Patrons for all the support. Want to help the channel grow? Please consider joining my Patreon Follow the link to Join / stevesummers - Наука та технологія
Cool shots of your yard and Garden
I have to admit you really dove into this this thing...This journey you're talking about started across the street and up to the moon! Like it!
Great video Steve. Every time you upload I learn something new. Thank you Steve.
I did what your learning to do for 31 years , why am I watching I guess to see how your doing . Doing good
Well done Steve. Great close-up shots! Thanks for sharing.
Instablaster
THAT is a marvelous procedure. I really get a charge out of seeing how stuff like that is accomplished. Thanks, dude, for taking the time to film it and sharing!
Jeff Hatton I'm the same way, love seeing how things work.
very nicely done, very clearly explained ! great videography as well. Thanks much for these interesting cutter grinder videos
Great work I whish I could of come to the meet and greet And Happy Birthday to your wife
Very humble man.You explain everything in detail very nice 👍
Morning Steve you a busy man as we all are, that honey do list comes first then the toying around in the shop and hanging out with like minded folks, pass on our birthday wishes from your northern neighbors and enjoy the meet & greet
GREAT WORK
Nice work and explanation of your process. Need one of those fo my surface grinder. I could sharpen the cutters I wipe out learning. 😁. Your cutter/grinder is now a permanent fixture in the shop. After all the work it was definitely worth every minute and dollar invested. Nice video Steve. 👍👍👍
You Are Making Great Headway With That Grinder ! Impressive Edges On That Endmill !!! Best Regards
Another awesome video from Steve's Sharpening Service. Great camera work on the close ups.
great video steve thanks 4 the knowlage. great channel keep up the good work.
Great video Steve. I'm watching through all your grinding videos to learn how to work my new to me T&C grinder. I'm at the stage you were back then, and it is good to follow another beginner.
The edge on the mill cutter came out really nice there Steve and it’s good to see that the crops are doing fine as well.
don't sell yourself short steve, your my expert that I refer to, keep up the great job.
about to start this challange liked it thanks
Sir, I just got my Shars cutter grinder yesterday, and I was looking for good basic info on flute grinding; I think that you did a great job on your entire project, explanations were spot-on, and a really good demo. Now I just need to figure out how to set up the finger system; the one on this machine is nothing but a finger. Thanks again Steve! Your efforts are greatly appreciated.
Great explanation. I always enjoy you videos.
R. Steven Lang, Shark River Machine Thank you Steven👍. I enjoy watching your also.
Hey Steve, another great video. More good learning on the cutter grinder. Have a great night with the group at The Garage Bar for the meet and greet. Someday I’ll show up for one. Thanks for the mention too!! 😁👍🏽
Kenny Gee I would love to get to meet you Ken👍
I love those Scotch Bright wheels. Once you use them you will wonder how you got along without them.
Steve
Thanks for the video, Steve, really loving your channel !
Rodney Kiemele Thank you very much. I am glad you enjoy it. Makes it worth doing !
Hey Steve, just subscribed, enjoy your presentation... also to say you are clearly on honest hard working guy, humble too... makes watching so much more pleasurable when someone is gracious and not a know it all. Thanks for sharing!! Regards from South Africa!
Hi Steve.I just bought a myself a universal cutter grinder to sharpen baby end mills in comparison to those big boys. Its certainly a steep learning curve to perfect without destroying them totally, but you have done it with ease. Great watch and thanks for the learning.
Steve, really appreciate all your videos. I'm located in Miramar Beach Florida and have a small shop a block from the Gulf of Mexico. Been wanting to go over to Adams shop in Pensacola haven't made it yet when he is home. The "meet and greet" is a great concept for UA-cam guys to gather with fans. As a kid I grew up in a blacksmith shop and been in metal and wood working my whole life. Now at 72 I still learn something every day. Keep up the great work, wish you and family the very best. P. A. Ballman
Philip Ballman Very interesting story, love blacksmith work. 72 is the new 50 they say😃. I try to push myself every day to learn something new. Big thanks to you for watching 👍 Meet and Greet should be fun.
Thanks for a good video Steve,enjoyed your garden shots,looks great.my corn is looking Nice this year probably because of a very hot summer this year,I think about 40 days of good warm weather.regards from Denmark
Happy Birthday to the Wife .Todays my Birthday. July Babys Rock ..Excellent video !!
apollo robb Elizabeth said THANKS !
Nice work on the t&c grinder! I’m keen to get some time on our Clarkson
Another great vid!!
I was hoping to see 4 or 5 videos of the grinder over a year or two. You are killing it with great content. So cool to see that fixture in use and to see it produce a nice result. Great work, man!
As you say, there's not a ton of information out there about T&C grinders and methods. You're changing that one detailed video at a time. Hopefully a bunch of home shop guys find this resource as they go down the rabbit hole.
MiscRocketVideos Big Thanks to you Sandy👍
Looking good! I didn't know your wife had a birthday this week, happy belated birthday to Elizabeth!
bcbloc02 Thank you Brian👍. I'll make sure and tell her. Was a great Meet and Greet for sure.
Great job, enjoyed the camera shots. Audio is pretty darn good as well.
george stone Thanks George👍
Great video I just subbed after watched A-💣’s vid looking forward to learning along with you 🍻 I can’t wait to start on my own little machine shop one of these days 👍
Your getting pretty good on that tool grinder. I'm looking for a drill grinder. Love to watch you work. 'Til next time.
In dear old England, there are many hobbyists. It was considered a rite of passage to make the Quorn (look it up) T&G grinder from the kit. This kit is still available and is an extremely capable grinder. Of course you would have to ship it over from the UK and it ain't cheap in the first place. I mention it because not all of us have easy access to old iron.
I find it interesting to analyze T&G grinding in terms of degrees of freedom (DF). Ordinary grinders have 2 degrees of freedom. X and Y. Your fixture gives you one more DF, call it A, the angle of rotation -- which is controlled by the finger height. I am thinking of building a miniature T&G fixture for my tiny Taig. Fascinating to look at A in action. You could get another DF by adding a rotation relative to X.This would give you what the CNC guys call "five axis milling". Sorry this post is too long but once I got started, couldn't stop.
Juan Rivero I enjoyed reading it Juan👍. I will look up this kit your talking about. Neat idea to build one. Thanks for taking the time to comment and watch like always👊
Another excellent demonstration, Steve. That grinding fixture looks to be both simple and effective. The adjustable three point mounting system for the sliding spindle (like the old style telescopic sights) has given me some ideas for using the China-made parallel-shank ER collet arbours for this purpose. Hmmmmm.........
Try and find a cheap spindexer for your project. They are very similar to the fixture in this video minus the side tilt. Most are designed to use the same collets as used by most Bridgeport manual mills(r-8) but some also use the 5c collets.
If I had a large endmill I couldn't run, I'd be tempted to make a wood jointer and/or thickness planer with it. If you cylindrical ground the tip to fit a bearing, you could then flip it, hold it in a collet and grind the existing shaft down to a smaller diameter too.
Thanks for the video
Just starting out with this type of thing and that Norton manual is invaluable to have found after watching your video
Vintage machinery has a downloadable copy
Good job Steve! Maybe that taper is build into the end mill. You should add a on/off switch on your grinder after the VFD to keep from reaching over your machine. I use that type system on my lathe which the VFD is on and running and switch my coolant and hydrualic pump on and off separately ( all 3 phase motors).
Thanks Steve. Happy Birthday to Elizabeth. Still waiting for her welding UA-cam channel to popup. :-D
Hi Steve you should look at Harold Hills home made flute sharpening procedure he has a video showing him starting at the front of the end mill.Kind regards Nev
Nice episode Steve! That endmill turned out perfect!
Man, that corn is growing fast! hahaha
Cheers bud!
chevy250ss Thank you Chevy, always a pleasure to see you stop by.
Hi Steve ! Im Dave from Aus ( down under )Adam sent me . LOL ! I think I will be around for a while . Keep up the good work , especially the self learning process.
Dasha Hearne Thanks man 👍. Glad to have you around.
I came here from AVE's channel. Duly subscribed now. Thanks for the awesome content. I can't wait to watch all your back catalogue.
Thanks man!
Hi Steve. Great video on sharpening. Back in the 1970's I sharpened Wadkin wood cutting Tenon knives which have a slight radius on the cutting edge to produce a flat surface the same way using a finger. The difference is, is that the left to right motion is by traversing the machine table and the finger was set ABOVE centre height to the grinding wheel to give the cutting edge clearance. While traversing the table with one hand you had to hold the cutter up to the finger with the other, other wise the cutter would drop, jam the grinding wheel and explode it BANG!!!!!. Just like playing golf FOUR every body duck the grinding wheel in a million bits lol. The joys of being an apprentice.
Tony Dye, and the joys of being kicked up the arse by the foreman too! I assume you are from the UK as Wadkin's were a big UK woodworking machine manufacturer and I can't see them having exported to the States. Half the machines in our mill were Wadkin, and we had an 18" planer thicknesser when it was switched off for lunch (30 minutes) it was still revolving for start up. I think about an18 HP motor on it and the steel cutter block was about 5 1/2" in diameter.
Great video and great camera angles on the grinding work! Not much info on this kind of stuff on youtube....
When I grind end mills ,I coat the entire end mill in red dykem ,you really see what's going on. Hss is easy, carbide another animal.
Somehow I think you are getting to the Expert Leval Steve!
Never stop expanding the possibilities of your equipment, I’m always learning new techniques, processes and abilities to the machines in my shop and educatiing myself to not just the machines potential but also my own. I like your video.
Those 3M scotch-brute wheels are also great at polishing stainless. I also use them to clean all steel parts on vise and Jacobs chuck rebuilds.
Thomas Donino wish we had them freely available here in the UK. Old Abomb 79 just loves his ones and is always using them in his videos.
thanks
Great video and great presentation. Might consider moving the corn to the dog. Plant your corn in your dads garden and the peas in your garden.
While milling 16" deep pockets in diecast mold bases on the boring mill, I routinely put .010 to .020 back taper on long reach end mills. This offsets the flex in the spindle and the cutter as well. The sides of the pocket would come out square to the base, or slightly tapered outward to allow the mold insert freedom to seat to the pocket bottom.
Very nice demo. As a note, Ralmikes (I am told that it is three syllables) disappeared a number of years ago (late 1990's?), but were a wide line tool supplier out of plainfield/summit NJ. A lot of stuff branded for them, some customized for them, from boring bars and basic tooling, surface plates, spindexers, angle plates, on up. Lots of their stuff still shows up, especially in the northeast.
I know I have said this to Abom79 (and others - Keith comes to mind), you get one too: You da man!
Taper could easily have been ground to provide draft on some part of a mold for injection molding, for example. Although, the usual direction of taper would have the largest diameter near the shank. Thanks for another good video.
Paul Mathews Good to see you Paul. Apparently it is common for endmills to purposely have taper ground in to account for deflection...... makes sense to me . 👍.
True test would to get a few small blanks and make some end mills etc
I use a silicon carbide and an aluminum oxide deburring wheel. 6”x1” each. These are REALLY expensive, $75 each, on sale, from MSC. I replace them every few years, as they wear down fairly fast. Silicon carbide for soft metals, and aluminum oxide for steel and such.
Hello Steve, all end mills have a Back Taper Tolerance. Following the National Aerospace Specification NAS 986 the tolerance is as follows: ( .0005" per inch max back taper not to exceed the diameter tolerance, front taper is not permissible.) Example: dia. tolerance is +.002, -.000 and the tool has a 4" length of cut you could have up to .002 back taper max., if it only had a 2" length of cut it could not have more then .001 max. back taper. Also, and end mill that size would normally have 8 +/-1 degrees primary relief with 16 +/-2 degrees secondary clearance and a .040 +/-.005 primary land width. Just some info to help you out. I'll be sending you some new end mills as soon as I get the time to go through the lot I have and separating them out for various UA-cam creators. Cheers my friend.
cuttingtooldesigner Wow, I would have never thought that they would have taper. I of course haven't got that deep yet. Good info to know. I would have never expected that. Why would you even want taper of that ammount? Thanks for the info. Sure is a deep subject for something that seems from the casual observers to be something straight foward.
Steve, All end mills deflect while they are cutting (beam deflection) so a slight taper will generate less taper on the part.
cuttingtooldesigner Ok, that makes perfect sense. . 👍. I don't think a taper is even possible using that fixture. I need to get a hold of the spec and start looking into them. Guess in order to properly grind in the taper they will need to be set up on the table between centers. Like I said great info and thanks for the comment. I learn more from the comment than anything👍
Good added value. Never have too much information. 😊
Maybe a vid about back taper with chickens in it?
So when is Summers Sharpening service opening?
Thanks for the vids.
It looks like If you pulled the finger toward the tube or overall fixture. In other words if you imagine from center of grinding wheel to the Finger has a radius increase that distance so the endmill continues its rotation and movement past the outside of the wheel for maybe 5 or 10 mm.
Thank you for a very informative video. What book did you use for your set up? I did notice that it was a put out by Norton.
Excellent work.. I've been looking for the proper procedure for sharpening end mills. Can you post what machine you are are using? Cheers,
Be careful mate - Adam & Brian might dump a pile of blunt endmills of to you for sharpening !!! just checked time difference Kentucky is excatly 12 hrs behind us in Perth .
Chuck that puppy up in the lathe, mount some scrap metal in the cross slide, then make a test cut or ten! :)
Very interesting video. I learned by watching. And, I enjoyed seeing the outdoor sequences. Is the 3M deburring wheel you are using the EXL Pro? Or another version. A bit more information would be appreciated. Thanks for sharing.
Jim Milne They are EXL-XP.
My 4H club used to plant 6 rows of sweet corn about 200 feet long. The raccoons would leave us a dozen ears or so...
Great video.. I just acquired a Cincinnati #2 and need that holder.. What is the name and are there other options? Thanks
Hello. Could you share a little more info on your deburring wheel., the EXL-XP seems to come in several "flavors". Is you wheel silicon carbide, or aluminum oxide ? and what grade was being used ? (Fin, Med ??). Thank you, learning a lot and really appreciate the effort your putting into your videos.
Hi!! really nice video! was looking for such for long time!!!! is it possible to have the reference of the guide?
cool stuff there should send that over to someone that can make chips with it would be interesting to see the finish
Josh Maybe Brian Block or Adam
Say hello to everyone tonight and have a good time.
Craig L. Young Thanks Craig👍
Me gustaria saber que otra herramienta se puede afilar con este dispositivo, gracias
Why do you go up and down vertically on the wheel? Wouldn't side to side work more evenly?
Hey Steve, awesome video. I have an identical fixture but have not been as successful as you since, I too, have not been able to find any manual. Any chance you could post those couple of pages in your book. That would help me greatly. Thanks again.
The entire book ( Norton abrasives ) ( A book on tool room grinding) is on VintageMachinery.org I was told. The book tells nothing about that fixture. Only about setting finger height. Is it finger height your having issue with? The manual that came with the helix sharpening unit is completely useless. Tells nothing but a parts breakdown. If you cant find it let me know and I will see what I can do.
Hey Steve, what book were you referring to for the formula? After watching your video I found the exact sharpener you have on eBay and bought it. I hope I am as successful as you were with yours. I'll be using my fixture with a cup wheel on my surface grinder since I don't have a cutter grinder like yours.
I wonder if a spindexer could be modified to make a simple fixture of this type
Bobby Vincent I think you could do it with that if you put some thought into it. 👍
So, can I send you my pile of dull end mills now? LOL, I need to get me a tool grinder.
Send 'em, sure. Get 'em back, well...
I would love to see about purchasing a dust collector.
MemorialRifleRange Kengodin@composiclean.com is Ken's email. Super nice guy.
Thank you Steve
I'm curious, Did the fixture come with the grinder if not, maybe a little background on where it came from as I assuming they're a rare item to be found. Great instructions, straight forward, Thank you. bjr
bjr E. WA. It came with the grinder. You can buy air spindle units that are better than this on ebay. They can get a bit pricey tho
I know this is off topic but I was wondering if both motors run at the same rpm. Have read that they need to run at the same rpm to run off one vfd. I'm asking because I have a mill that has 3 motors (spindle, power feed, coolant pump) and the feed runs at a different rpm from the spindle. Wondering if you have any advice
excavateboy, they don't "Need" to run at the same speed, they WILL run at the same speed unless there is a difference on the number of poles in each motor I certainly would not want to run the power feed along with the spindle with the same VFD. I have heard from quite a few sources that VFD's do not like to run more than one motor and I can foresee problems if for instance you wished to reverse the main spindle in say a lathe and still want the power feed to run in the normal way. I would think that a rotary phase converter would be the way to go in a three motor set up on one machine, and I will bet you may have other 3phase machines as well
There are copies for sale on ebay.......End Mill Sharpening Fixture, "Operation And Service Manual".
Nice job! In the early '80's I worked in the tool crib at Hardinge for 4 years. I did this type of work ALL day EVERY day, and it was mind numbing boring.
kmcwhq If I was paid to do it I day in and day out could see it would get old. These cutters I am trying to sharpen are no big deal really. My fun is learning to use the machine. Thanks for watching
yeah man build a fence!
Hello Steve. I have seen were people built like a Christmas tree to haug there disk from
The manual for my Harig surface grinder said the motor will run smoother and produce a better result with a rotary phase converter instead of the other kinds, not sure if VFDs were invented when it was written.
multiHappyHacker Never heard that before but they are different and could make a difference I guess 👍
If the grinding on the flutes looks okay it's probably not a problem, but I would be interested to see if there is any difference.
Steve I see I'm approx 4 yrs late with this video, however I wNt you to kn9w that most endmills are ground with slightly tapered flutes because of endmill deflection, so that they will cut a perpendicular side edge..
My wife thought this was the Red Green Show.
OnCNC.com Not quite but close
Steve I recently bid on some tooling at an auction, and won way more than I wanted. Are any of the shaft diameters on the grinder 5/8 or 1/2 inch I may have some grinding wheels for you..
Lloyd That's very nice of you. All my large hubs are 1 1/4" . I do have a hub for smaller wheels and I think it's 1/2" but Im not completely sure. I will get back with you. My email is noel.steve15@gmail.com. You can skip the comments section and contact me through it.👍
i follow abom, came over from him. what book are u showing with tool gringing specs?
I believe Abom79 (Adam) gave Steve the book and it is published by Norton and I believe called Toolroom or Toolcutter grinding
@@samrodian919 Thanks, found it if anyone can find a copy. "A Handbook on Tool Room Grinding Paperback - January 1, 1956
by Norton ABRASIVES (Author)". I see one or two for sale, $75 USD so too much for my interest.
Does the diamond of cutter effect
He is using aluminum oxcide wheels here. As the cutter is High speed steel. Diamond is for carbines.
Cnb would be the supper abrise you are thinking of. In which case grit size DOES effect edge finish.
I would be interested in a Vac system
Grim Lock Kengodin@composiclean.com That's the guy, Name is Ken. Super nice guy
Racoons squirrells, birds eat really well huh?
21:34 Steve I was thinking about this. What if you instead end your grind ON the wheel instead of chasing the tool completely off of the grinding wheel. Wouldn't that keep the grind more consistent from the back of the edge to the front? Of course you would want to tilt the fixture as not to leave the tool on the grinding wheel too long, but at least you wouldn't get that strange phenomena when the wheel falls over the end of the cutting edge
Bobby Vincent There is a way to avoid that by adjusting finger placement. From what I have read you are supposed to grind from back to front.
Steve a thought and it is just a thought as I have zero cutter experience in cutter grinding, but if you were to have the finger further away from the wheel then the flute would be still in full engagement with the finger. I theory then there is little chance of the wheel "falling off" of the end of the cutter. Would you agree with this? Or as this is now almost 2021 and you have nearly three more years experience with using the machine you may have found a better way of doing it?
Steve, an electric fence will keep the raccoons out of the sweet corn. One wire at about 4-6" and another strung at about 8-12".
Paul Culbert We have tried that. The deer keep breaking the fence. Almost more trouble than it was worth. Same battle every year.
Geese - better than shot gun pellets in the corn ! not sure if the geese would eat the corn though .
3
Hey Steve , great videos , how does one subscribe to your channel ??? am i missing something , been watching ol abom for ages , regards to you
Pete Scales All you need to do is Fast Foward till almost the end of any of my newer videos and watch for my channel icon and click on it. If you have any trouble Pete I will be glad to help you further. Just let me know👍
Got it steve , many thanks , keep up the enjoyment ....regards
So you need a special grinder