CUSTOM CALIPERS PART 1
Вставка
- Опубліковано 7 лип 2016
- Part 1 of a 3 part series on making 2 different custom calipers from Mitutoyo absolute calipers. Design, disassembly, modifying the caliper frames,making small OD laps, lapping carbide pins, and cutting carbide pins to length will be covered in this video
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I am "robinrenzetti" Instagram lots more content there!
Great synopsis of the video by brs_workshop
"Shop Notes"*
• Overview of topics covered in each video.
• Just a note on the 'make one for you, one for me': This is quite common in small production industries. More often than not the customer's expense is mostly in time and skill of the maker. Most of the maker's time is in setup and process design. Swapping out an extra set of parts is trivial compared to revisiting. This also adds some insurance if there's a surprise re-order or if world chooses to make your life difficult that week (lost packages, theft, disasters).
• Review of the customer sketch. Note that the customer knows technical drawing conventions (sectioning) which can make even a very simple drawing sufficient to build from.
• Looking at a CAD drawing of the modifications and fabricated parts
• Shows how to disassemble a digital caliper neatly
• Calipers used: Mitutoyo 500-196-30 (Be aware that there are counterfeits sold online, buy from a reputable source)
McMasterCarr: www.mcmaster.com/#8647a42/=19...
KBC Tool: www.kbctools.com/products/MEAS...
• Trimming the calipers with a cutoff disc on the surface grinder.
• Creating the grooves for the head assembly
• Making simple O.D. laps with parallel clamp adjuster
• Lapping a carbide drill blank to size and finish
• Paper lap trick
• Trimming pins and a well thought-out 'quick-and-dirty' fixture
*Not affiliated with any manufacturer or distributor. Links just for convenience.
"Shop Notes"*
• Overview of topics covered in each video.
• Just a note on the 'make one for you, one for me': This is quite common in small production industries. More often than not the customer's expense is mostly in time and skill of the maker. Most of the maker's time is in setup and process design. Swapping out an extra set of parts is trivial compared to revisiting. This also adds some insurance if there's a surprise re-order or if world chooses to make your life difficult that week (lost packages, theft, disasters).
• Review of the customer sketch. Note that the customer knows technical drawing conventions (sectioning) which can make even a very simple drawing sufficient to build from.
• Looking at a CAD drawing of the modifications and fabricated parts
• Shows how to disassemble a digital caliper neatly
• Calipers used: Mitutoyo 500-196-30 (Be aware that there are counterfeits sold online, buy from a reputable source)
McMasterCarr: www.mcmaster.com/#8647a42/=19px6nj
KBC Tool: www.kbctools.com/products/MEASURING%20@@26%20INSPECTION/CALIPERS/ELECTRONIC%20DIGITAL%20CALIPERS/5759.aspx
• Trimming the calipers with a cutoff disc on the surface grinder.
• Creating the grooves for the head assembly
• Making simple O.D. laps with parallel clamp adjuster
• Lapping a carbide drill blank to size and finish
• Paper lap trick
• Trimming pins and a well thought-out 'quick-and-dirty' fixture
*Not affiliated with any manufacturer or distributor. Links just for convenience.
Thanks again brs and it is in the video notes now!
Hey Robin,
Excellent start of a series. The parallel clamps to secure the lap is a great trick! Consider it stolen. Good points the incomplete cut when hanging out of the vise. I saw somebody do that once......
All the best,
Tom
Thanks Tom, having something worth being stolen by you is quite an honor Part 2 is up now, maybe there is something theft worthy in it.
All the best,
Robin
Great video! Love the toolmakers clamp to hold/tighten the small lap, thats a neat design - Consider that idea stolen ;)
Continuing to watch part 2 ;)
Thanks Stefan, I am glad you found something useful! I have slowly been catching up on some of your excellent videos also.
I love how the stuff you do on a regular basis (at least what we see here in the videos :-] ), is stuff that 99.99% of people would never even attempt to have a go at :)
Very nice work!
Thanks, It is the regular stuff I do every day.
I must have watched this 3 part series 5x. Thank you so much for sharing your considerable knowledge.
Thanks for the kind words and thanks for watching!
I will definitely end up watching this several times to pick up on all the nuggets of information you have detailed. Really looking forward to part 2!
Thanks for sharing your skills, sir!
You continue to inspire me to up my game. From the creative fix turning to the thorough explanations and tight photography, I'm hooked. Thanks for sharing!
Thanks for the encouraging words.
I'm a electrician, and a home gamer machinist who is really enjoying learning from you and the other wonderful youtube creators.
keep up the good work, and thank you for showing me some thing new.. this is cool.
Thanks for watching and I am glad this might be helpful
You should be charging admission for these videos. Learning from your every move. Thank you.
UA-cam suggested your Tom Lipton level scraping video and I'm glad I am on your channel. You have a great manner of explaining design and setup decisions. I can tell I'm learning from a master.
A big thank-you for your work!
Your new UA-cam apprentice.
Not sure about the master part but I am glad you are enjoying it!
If Tom often says "Nothing too strong ever broke", I think your catch phrase might be "Nothing is too small to be ignored".
Very interesting work, thank you for showing.
Thanks, I don't really consider these parts to be exceptionally small.
Thanks John that was a cool video and technique!
Impressed! I just got two hours of sleep last night because of your videos, it´s all high-end". It was impossible to stop watching and I´m truly grateful!
Thanks, glad I could help you loose some sleep and thanks for watching.
I’m so happy I found your channel. Love seeing the process. Making the tool to size the carbide down to .050”, that stuff is priceless. You do a splendid job of sharing your methods. Just awesome!!
Glad you enjoyed the content. Thanks for watching and commenting.
Well outside the scope of the large scale machine work I do but still always cool to see the ultra precision stuff. :-)
I have said it before but will repeat, the perfectionist's perfectionist with attention to detail score off the charts.
Another master class, If you can make micro stuff you can make big stuff, subject to equipment, but not always the other way around. Many could learn from your attention to detail. Keep 'em coming.
Thanks very much for the kind words but people are going to wonder if you are on my payroll soon :)
Yes please. :>)
I appreciate quality, can't afford myself but I can always watch, and kind words cost nothing especially when they are deserved.
I've watched several of your videos multiple times. Your attention to detail and thoroughness are amazing.
I'll bet it's not easy for one to get training as a toolmaker anymore. You're doing a great service to the metal working community my friend! Looking forward to all you have time to share. Thank you!
Thanks James and thanks for watching and commenting!
Sir, WOW++++++. No wonder Tom was impressed with your work! Kindest regards from Bonnie Scotland.
Thanks Joe, Part 2 should be live this evening.
+ROBRENZ, AWSOME!!!!!!!!!!
+Joe McIntyre, sorry AWESOME!!!!!
Wow I am from Australia I have just finished my apprenticeship as machinist,I discovered your videos today they are excellent thank you for sharing techniques you cant learn in school. I am amazed at the small scale ultra precision work
Thanks, more to come.
Great project and beautiful workmanship. Thanks, Robin.
Thanks Randy and thanks for stopping by.
Thanks for sharing your considerable skill and talent, Robin. I appreciate your attention to detail and the remarkable results you achieve.
Thanks Lyn, That would be a roll in saw www.google.com/search?q=roll+in+saw&biw=1280&bih=566&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJ_p7krfDNAhXDdSYKHeF2CeoQ_AUICCgD#imgrc=X9_tURbVPzCaaM%3A
Sorry about the other reply Lyn, it was obviously for someone else. Anyway thanks for the kind words and thanks for watching!
Thank you for showing the finished product at the beginning! Learning and following along is more effective when the student knows what they are going to get in the end. 👍
Glad it was helpful!
This awesome !!!! Can't wait for part 2
True artwork, sir, you are a fine craftsman! Enjoy the vids immensely!
Thanks for the kind words.
Wonderful videos! Every video is a huge joy. With every video you learn something new. Extremely interesting. Definitely one of the best videos I have ever seen! Many thanks for that!
Greetings Robin
My new number one subscribed channel ! Very informative and teachable content. Thanks for your time !
That lapping fixture is so damn smart...really impressed O.O
This is my 2nd or 3rd time watching this and I’m amazed, again.
Thanks, glad you are finding the content useful.
thanks for the vids. Love watching your quality work and learning from a very skilled person!
Thanks a lot!
Beautiful and original work Robin - makes me want to modify my own calipers without having a good reason to do so!
Many thanks for sharing from another subscriber.
Thanks Stephan, and thanks for commenting and subscribing!
I love watching your videos mate!! Awesome!!
Pleasure to watch a man with skills. lernt several tricks. looking forward to watching many more. I must thank Tom for the video introduction
Will from down under
Thanks Will, glad you are finding something useful and thanks for commenting and watching!
ATB, Robin
Great vid! Lapping has always been a mystery...would love to see more on the topic.
Thanks, I will do more on the topic.
Fascinating, Robin! Almost every step and detail of this work was new to me, and you did an excellent job of capturing it with excellent video while carrying on an easily understood description of the various steps and nuances, all seemingly effortless on your part. Keep putting this stuff up and I will continue watching eagerly!
Thanks Bob, part 2 should be live this evening. Most of the videos in my machining playlist have similar style content. I suggest starting the ultimate kelvin connection part 1 it has tons of machining techniques in it.
Thanks for the suggestion, Robin. I will watch that video. I looked at the titles of your other videos and decided that there would be little machining content on the rest of your older videos, thinking they were more scientific in subject matter. Thanks for the tip to look at the ultimate kelvin connection. Let us know somehow which of your other videos might prove interesting to machinist types.
I will be surprised if you are sorry you watched any of the videos in my "machining" playlist.
I will watch them all...
Hey Bob, feel free to tell me I was wrong!
A most excellent video, thank You Robin!
I have done almost the same thing but used the brake disk digital calipers now available. They have square long shanks which simplifies the build which makes it possible to machine the holder for pins etc directly into them.
I really appreciate the tips. These are great tricks for new and old machinists. I'll be watching many more of your videos. I don't have much experience with very small parts, so this is great for the brain bank. I became quickly impressed with your knowledge. Thank ox tools for showing me your channel. Subscribed.
Thanks Andrew, glad you are enjoying them. Thanks for commenting and subscribing!
ATB, Robin
Keep em coming!!!
Ace work,super clean,awesome.
Thanks doubledown, and thanks for watching.
Great work! Keep them coming and we will all watch;)
Thanks, will do!
Why I keep a notepad nearby when watching ROBRENZ videos. Oh that a neat idea. Oh that was cool. Oh...
Get to the end of the video and can't remember any of the cool stuff! 😁
Enjoyed the show. Thanks!
Thanks for watching!
I'm really happy to have found your channel, excellent video thank you!
Thanks and thanks for watching!
some very special techniques here!! Very, very interesting!
Thanks Kostas and thanks for commenting and watching!
Robin
Master Class level--- Thanks -- can't wait for the next episode
Thanks, part 2 should be up tonight.
Can't wait for the next part.
Uploading now!
amazing videos, thanks very much for sharing your knowledge and skills with us!
Thanks Guy, you are welcome. Thanks for commenting and watching!
ATB, Robin
15:50 is awesome
I like the idea of using lapping
Great video series so far, very creative thinking.
Thanks James and thanks for commenting and watching!
ATB, Robin
very interesting and well done video. thank you for all your work doing these video's.
Thanks and thanks for watching and commenting!
Such a interesting vid thanks for sharing
Great job, and finaly someone using the momentum screw on the micrometer.....
Thanks for taking the time to make the video and share it..
Great video. Cant believe I haven't seen you before. Found you through Adam Booths home page. Thanks
Hi Robin,
I'm getting inspiration to a lot of new ideas, great work and well done on the commenting as you go along....
Thanks for sharing....
Pierre
Thanks for the kind words Pierre, Glad these are useful and thanks for watching!
I've had a Mitutoyo Digimatic for close to 25 years. Lots and lots of miles beating around in my the "precision tools" drawer of my Snap-On Heavy Duty Road Chest in service trucks and my pickup. I think I paid $250 for that damn thing and I thought I was nuts then and judging by prices today I probably was, lol. But in 25 years I think I've replaced the battery twice and it still looks damn near new and works perfectly. Still got whats left of the sleeve around the plastic case just like my Starrett 0-1 micrometer is still in the case and the case is in ITs original box in the same drawer. Battered but still intact and the case and micrometer look like new. Both great companies that can and do make a WIDE variety of their "standard" tools. As soon as I saw this I immediat ly thought "Mitutoyo has GOT to make something at least SIMILAR to what this customer wanted custom-made. So I checked the website. I didn't come up with identical matches but I'm pretty sure the one micrometer I did find (there are 4 or 5 others with the same jaw style but different lengths. metric only, standard only, etc) would do what both of these will do:
ecatalog.mitutoyo.com/ABSOLUTE-Inside-Caliper-Series-573536-Knife-edgeInside-GrovePoint-Jaw-Type-C1395.aspx
Impressive as always.
Thanks Chris, and thanks for watching and commenting!
Hey Robin, keep them coming, this stuff is awesome. -Alex
Hi Alex, your setup blocks are awesome! Maybe we will meet when Tom comes east.
+ROBRENZ Thanks man. I hope to some day have the knowledge you do. I need to get into a good high precision shop and learn some more... I would love to meet up some day. Thanks again, Alex
Professional and very interesting
Thanks and thanks for watching.
Great! Job thanks for posting.....
Thanks for watching!
Every time you say “I’m ROBIN” I can’t help but to expect to hear in the background “and I’m Batman” 🦇🤔
This videos are so cool!! outsidescrewball sent me here... I will binge watch all this cool videos.
Thanks Roberto, glad you liked them and thanks for commenting and watching!
ATB, Robin
brother you should have had a channel a long time ago,brilliant work and looking forward to the rest
Thanks, part 2 is uploading now
Showing me a whole new world......very interesting
Glad you are enjoying the content Chuck and thanks for stopping back!
ATB, Robin
Awesome! Way out of my league, but very interesting. Much valuable information. subscribed
Thanks Arnljot and thanks for commenting and subscribing!
ATB, Robin
That's interesting!
Hi I got here from the truing up you did on Tom Lipton's level. Very nice, seems like you also use a lot of creativity in your projects.
Thanks TusconEV and thanks for watching and commenting!
Extremely interesting. There's not much real information around for high precision lapping or reworking carbide. I'm very much looking forward to the rest of the videos.
Much more to come!
very good rob thanks
Thanks Joe and thanks for commenting and watching!
When this turns out like I'm sure it will, the only error will be from the repeatability of the caliper. Super nice.
Thanks 1musicsearcher and thanks for commenting and watching!
ATB, Robin
Hi Robin,
Thanks for the tips on lapping pins, I noticed that you can get .050 carbide end mills instead of the #55 drill bit, however maybe the finish is rough with no material for lapping.
I never saw a .050 end mill that has a .050 shank. Even if there is such a thing your comment on the shank is very likely.
Very interesting, thanks.
Thanks for watching.
Hi Robin, Love the detail of your work, you and Tom are always putting out great content. In the future if you need a .050" carbide pin you can try getting a Harvey Tool miniature extended reach stub flute end mill and cut off the shank and flutes. With a 15xd you should get about .675 of length(Harvey # 48950). I have done this in the past for some oddball miniature carbide pins I needed. You might want to verify tolerance on shank and see if it would meet your needs. Always looking forward to your vidoes!
Thanks Vahag, that is a very good idea but more expensive. That carbide blank I started with was only $20.00 for 1.5" and I think I would still have to lap the Harvey blanks.
top notch
Thanks.
If you ever do these again, heating the blade of the scraper with a hair drier (or heat gun on medium) will make it a lot easier to remove the label. I've done one before where i've also heated the calipers themselves, but i generally stay away from heated electronics, maybe just a whisker of heat to soften the glue, not much more. The bonus for this is, you can remove the labels and reuse them as they are. The heat will lift it off the metal with ease.
Good idea, I will try that next time. Thanks for watching and commenting.
im a toolmaker by trade, and wow just wow id love to work like this
Thanks Benjamin, this is some very fun work. Thanks for watching and commenting!
absolutely love this video would like to one day be a tool and die maker!!!
Thanks mosherj58, It is very enjoyable and rewarding work. thanks for watching and commenting!
Just a thought Robin. How about putting a timer in view when doing the time-lapse sections, just to give us an idea of actually how long these operations take?
Bill Todd
Thanks Bill I will give that some thought. Thanks for watching.
Awesome work. I would have never thought about all the details you showed to ensure an excellent product. Your thought process is that of an engineer, is this by engineering training or experience as a machinist?
Thanks Gilberto, I have done and still do a lot of engineering and all my training is on the job as a machinist.Thanks for commenting and watching!
ATB, Robin
Wow.
Glad you liked it Volcker1929 and thanks for commenting and watching!
Robin
20:53
Thinking about creating a tool for tailstock for not holding the lap by hands.
The lap needs to be able to follow the part freely without any influence. That would require a fairly exotic fixture in the tailstock that only transmits torque without any lateral forces.
ROBRENZ sort of a die holder, hm...
Robin
I know this is an older video, but I found this video today and enjoyed watching. Howeever, I have a question. Using the cutoff wheel looks llike it leaves a rounded botton to the cut? If so, any eay to dress the cutoff eheel square for a finishing cut to get a square bottom?
John
You could dress is square again but it won't hold up for long.
HEY THERE GREAT VIDS I WAS WONDERING IF YOU ARE PLANING ON POSTING ANYMORE I SEE ITS BEEN THREE MONTHS FROM YOUR LAST POST
Thanks and yes I will be back to posting videos in Jan 2017. I had a huge end of the year work project that took all my time. Thanks for watching and commenting!
do you ever have problems getting flood coolant in contact with the wheel when creep feeding? in my experience the air boundary layer likes to deflect the coolant out of the way and i don't get much coolant into the cutting zone itself
Of course, but its way better than not using coolant. Ideally you want the coolant exit velocity to match the wheel SFM but that would create quite a mess on a non enclosed grinder and take way more psi than I have available.
i have a question about your indicator tips; how did you connect silicon nitride balls to them?
Loctite 380 black max
Robin, this may be a dumb question but at 9:06 is it a typo that it’s 0.0050 instead of 0.050? Or is it some kind of technical spec
That is a 0.005" radius on the edge of a 0.050" diameter pin.
@@ROBRENZ oh i just misread, thanks for the reply
Looking forward to the next parts. Why is the 0.050 reamer left handed for the lap blocks?
Left hand work well if you have a through hole. I didn't specifically order left hand it just showed up that way. I was focused on the cheapest one that was the correct size and didn't notice the left hand part.
+ROBRENZ I was wondering the same thing. Thank you!
Just curious, would you use the LH reamer in a pilot hole made by a right handed cutter? Or does the condition of the pre-reamed hole matter?
Looking forward to the next videos! Superb detail and craftsmanship.
Thanks Keith, does not matter. On a reamer left hand pushes the chips ahead of the reamer and right hand pulls the chips up the flutes. The same effect as a spiral point tap vs a spiral flute tap.
+ROBRENZ thanks, Robin!
Hi Robin
Could you recommend any books about things you are showing here?
Except of Exception of Mechanical Accuracy, got it already.
Tom lipton's "metal working doing it better" is a great book
Your videos are excellent my criticism is directed to You Tube. Anytime someone makes a series of videos it is hard to identify the succeeding ones. Perhaps it is just me but I can't find part 2. On the right side there are two previews of "making custom calipers" ok but which one is 1 , 2 and where is 3?
I have it shown on the thumbnail image and it is in the titles
Alternately could you have made the 3 micron laps from aluminum or bronze?
Definitely!
What Diamond compound are you using?
It was made by the Glennel company I used to work for many years ago.
groove master look that up made in the USA
Thanks Franklin but they don't go deep enough for my customer, that is why they requested the custom version. Thanks for commenting and watching!
ATB, Robin
or just buy .05 pins and skip the carbide part. I meen calipers right? They make more accurate tools for this.
No one would learn anything about lapping small diameters and working with carbide if I did that. :-)
A truly useless comment.
Robin is creating a bespoke instrument step by step. every process needs to be controlled thats why he lapped them to .050
cheers
Dave
Amazing work, but have you considered a manicure?? :-)
I'm kidding....
Hi Scott and thanks, Thousands of pounds of ductile iron go thru my shop each year. That is why my hands look dirty 90% of the time. You are the first to mention it from the machining community but the electronics guys were razzing me about it all the time. No offense taken!
This clip is just for you Scott ua-cam.com/video/LWUHlyi-8Mc/v-deo.htmlm1s
HAHA. Hey that's a very cool video!
31:16. You're welcome.
?
@@ROBRENZ "Whack it off"
.... and phhhhht, 33 minutes disappears ..... altogether too interesting.
Thanks!
Thanks for the encouraging words, high content per minute is my goal.
"Ultrasonic" cleaning of any parts/materials where the "ultrasound" is incapable of dissolving/dislodging contaminants only makes the contaminants "settle into" the parts/materials. And if you think "3-micron" so-called "slurry" is anything but "fairy dust" to any machine tool operating in a "real" shop, you're probably the type of "machinist" to use a lathe for work a 3/8" electric drill would be "overkill" for.