Great title! I kept looking at that oil spot on your shirt....... Bravo my friend! In case you guys weren't paying attention to detail Robin showed a clue on how his Repeat-O-Straight-O-Meter works. I love how Robin just says stuff like, " Should be sub 5 microinch TIR, probably better......." End quote. Talk to you soon. --Tom
I just barely watched this. Thanks! For the call out. I didn’t even know you watched my videos. I am so impressed with your technical ability. You do things I would be very hesitant to try. The caliper videos Wow! Your name of your video series is dead on. I am looking forward to your future videos. Again thank you!
Hi Robin. I enjoyed the paper gages you showed. I have never seen those before. Clever concept. Thanks for the listing in your header. Much appreciated. As for your title, I like it. Too many people skip over small details that make all the difference. Just ask some of the people on amazing race that don't read the whole clue and ended up going home.. What type of lathe/machine did you use for the height gage demo? The slotted table in the background threw me off. Take care.
Great video Robin! I’m looking forward to seeing how you will get those spindles to sub 5 millionths!!! Wow! Isn’t that 1/10th of a micron? Stefan will cry himself to sleep when he sees this...
There are only 2 youtubers whose videos I watch the second I get a notification. This Old Tony, and Robrenz. And Rob is miles ahead when it comes to sheer skill and knowledge. Great to see ATD starting. I’ll be watching avidly!
The first time I've ever heard any of the TH-cam channels mention Joe Pieczynski. I was beginning to wonder if people had some beef with him. I always thought his content was fine, certainly better than some other guys that some of the bigger channels often praise.
Hi Robin, could you put the TH-cam channel recommendations in the notes? I couldn’t quite find some of those you mentioned. Btw, very much enjoyed the inaugural “Attention to Detail “
Roben mentioned: Stan: "shadon hkw" Steve Somers: "steve somers" Steve Barton: "solid rock machine shop" Peter: "edge precision" Joe: "joe pieczynski" And I'd add: Stefan: "Stefan Gotteswinter" Adam: "abom79" Tom Lipton: "oxtoolco" These should lead you to even more interesting content.
Thanks for all your work in putting these out. It's a real gift to the world for you to share your experience (yeah, I'm sure the $4.87 payout each month is nice, but really....) The only complaint I have is that it's your fault that I'm reading the Foundations of Mechanical Accuracy, and now I regard my mill the same way I do an angle grinder.
Hi Rob: Very interesting and useful information! Do you have a reading list? Aside from Machinery's Handbook, other good reference and instructional books? Keep up the good work!
"Foundations of Mechanical Accuracy" and "Holes, Contours and Surfaces" are two that come to mind i believe i heard about on robin's channel. not sure what videos, though
Robin, not sure if you've discussed this but I noticed the shars chuck. What is your take on low price import chucks? Is that one adjustable for runout from the factory or did you modify it? I just ordered a shars adjustable 3 jaw. I don't want old, worn out chucks in my life any more and hopefully this will help me move forward. I would be interested to hear your opinion, and I'm sure other people would be as well. I also know that you use the CDCO aloris style tool holders which I just ordered a bunch of, maybe you could do a video on high value/low cost import tooling and associated modifications. I know there are a lot of videos like that on youtube but it would be very interesting to hear it from you. Thanks
I think they are good value and the better quality versions are pretty good. I spend several hours to take it apart, clean and deburr, and re lube before I even use them.
Thanks for the visual representations as you explain complex principles. Without which, it would be impossible to understand. While I don't yet have the skill-set instruments or machines to execute that level of precision, I am certain the exposure to that knowledge will influence my work over time.
'...ultra precise, hopefully...' I think we all know there's no need for 'hoping' or 'luck' to achieve that! No substitute for skill and experience. Can't wait for the follow up videos.
Wow, Robin, I was wondering where they were coming from :-) . Thank you so much for the shout out. I just caught this video at lunch today and have been looking forward to having the time to check it out and what do you know, A shout out from someone I look up to. Thanks again Great content Robin I love the detailed explanations and always learn just how little I know:-)
You and several other youtubers have inspired me to continually expand my breadth of knowledge and strive to be as good as I can be at whatever my career will be
Great stuff. I love the technical side. I think whiffletrees are scary in application since if the pivot is not exactly balanced to the forces it imparts twist easily. What material are you using for your spindle blocks?
Perfect name for your new feature. I admire your measured and thoughtful responses to your viewer's "concerns" which experience from other channel creators has shown are often expressed in a harsh manner.
Rob, thanks for your time. I have learned a valuable lesson from every video you have produced. I run a DMG MORI lathe with integrated Fanuc robot loader and ZEISS CMM 100% inspection. I make automotive components and “attempt” to hold a few tenths for 15,000 pieces a year. I appreciate your content and continually look forward to your next post. Thanks, Jonny.
You really hit it with that format Robin! Still denesly packed with a lot of usefull information. But hopefully a little less demanding to edit, thus giving us viewers more chances to get to watch your griliant content? Also, for those not aware of it, episode 10 of the podcast "the cogwheel" where you are the guest star is highly recommended! It's a unique oportunity to get to know a lot of details on your background and history. Which makes me want to know more. I hope to be able to hear more episodes with you! This episode is the best machining podcast I've ever heard! Here is a link (if that works): thecogwheel.net/2017/09/02/home-shop-machinists-podcast-episode-10-practitioner-of-the-mechanical-arts/ ATB
Robin, thank you soooo verrryyy much to take the time to make these videos! I know you are a very busy man, and these videos are time consuming, but that being said, you must know you are a enormous inspiration to many people around the world! Wish I could give you 100s of thumps up! Thank you once again!
I have decided ! You are the Batman of the YT machinists ! Superpowers include : Common horse sense, Reason and a bite that does not release ! Kisses ! Paddy
Some former coworkers have lamented the loss of American precision machining, and the appearance of offshore(Chinese) measuring tools, which mimic American form factor,are much less expensive, and while not as precise come very close, but miss the mark.I can now direct them to observe your channel for their precision high.As I have also done. Thank you,Mr. Renzetti
The three plate demo with paper stick figure precision instruments brought the whole concept home very effectively. You are an excellent teacher. Thanks again!
"I dont think so , Tim?? " lol --- well placed small joke good content, useful information and as every time well explained . Thank you for sharing, i ll wait for the next episode .
3:14 to 7:23 Very clear and succinct description. Thank You so much. About 1961 (I was about 10 years old) My dad took me to Bell Labs in Whippany NJ (where he worked) to see the first ever laser length measuring research device, a 2 ft x 3 ft x 15 ft slab of something (weighed tonnes) supported on fulcrum knife edge type supports(again I was only 10 relative to my grasp of the supports and process), and he showed me that just walking on the concrete floor next to the device changed the laser measured length. I was so impressed then, but I now find it absolutely incredible, and you sir take me back to the wispy times of my own pre-historical memories. I believe you "do measurements", test and verify, and make very real in a realm so inconceivable and incomprehensible to the average layman, that is as astronomical, and Hubble's constant, are so far away from "Pass the Salt Please" This poor example may make little sense to you, but I'm trying to express that I am extremely impressed, without insulting your incredible integrity, by my humble offering. I had forgotten, if I ever knew, that people like you exist. Again you make real, and test and verify, things that others I'm sure have no concept of.
We are learning a lot from Steve and family at Solid Rock grinding knowledge is really way up there lots to learn from them and so much more that I thought I knew and did not and now we do.
Great video! Love the variety of content and the level of detail you went into with each topic. Thanks for putting in all the work to make these videos for us all!
Gage pin in spindle indicated to minimal tir. Height gage on gang plate with indicator zeroed on plate. measure over gage pin and subtract half the pin diameter from that reading.
Hey Robin great video as always one quick question question regarding the mounting of a surface plate. Would the three point method on each corner for geometric stability still apply to a granite plate? Seems the full 12 points would be the most precise way of mounting to eliminate the most sag.
Awesome! lots to process there, I napped though the first time, and watched it again, hopefully i retained some. thanks as always for support and inspiration!
I've done this, cut out specific foam shapes. Template. Cardstock 5x5". Cut in half. Draw and cut two half-oval/ellipse shapes. Make a square of 1/4" plywood/MDF/etc., 5x5". Tack the cardstock to two opposite sides of the plywood. Cut out foam to fit between templates. Hot wire foam. Edit: He mentioned it in other comment, two words, 'jewelers saw.' :)
Hey I'm new here, good channel. The part about the stone rubbing you seam to be missing is. You're standing on the shoulders of a giant! The first guy only had the concept of flat. I would like to hear how we know something is square.
Thanks Robin for taking the time to share your thoughts and tips. Even if your discussion points aren't something that I can use in the near future, it always makes for a good thought exercise. ATD=perfect!
Thanks Robin, I think that was one of your best videos. Many people are confused over 3 plate self-generation and the requirement to also rotate the plates, and you explained that very well, even managing to slip in a heigth reference, though minus one point for then slipping back into English, ha ha. Using a twist gauge was brilliant and one of those "doh!" moments and I use a level and never thought of doing ways that way. It will be very interesting to see that spindle coming along, it sounds quite remarkable. Thanks for continuing to raise the bar.
Awesome Robin! Always learn a lot from you. You've been teasing me with all that cool stuff on Instagram for awhile. Nice to finally get a more comprehensive update on your latest projects! Keep up the great work!
You Sir are in the top 2 I watch as a amateur machinist. You, and i mean NO offense Sir, are by far and away the most anal and perfectionist machinist I've ever seen! You are slightly scary!! You're vids are OUTSTANDING but at the same time daunting. AGAIN, I mean no offense Sir. I like Tom, Abom79, both Keith's (Fenner & Rucker), Joe Pie, Peter Stanton, Tony and many others, but you Sir, are a step above and slightly beyond. I learn more from you then most in the least amount of time, but still kinda scary in your perfectionism!! No offense!! Happy new year to u and yours Sir. I look forward to ALL of your future vids!! It would be amazing if u could, or would, show one or two BLOOPER vids just to show that your fallible and human Sir!
I find this really interesting. I read that “Joesph Whitworth” was the first person to describe on how to get a flat surface using three plates. But you say it’s not the right way. If this is the case then who is the first person to obtain and describe a proper flat surface without Whitworth’s contribution? I’m assuming Whithworth needs to be credited for being the first person to describe a basic understanding of obtaining a flat surface then newer undated proper flat surface techniques arrived later on from other scientists.
I didn't mean his way did not work. It's just that the third plate is unnecessary if you use a repeatometer to see which plate is concave and which is convex.
@@ROBRENZ I would like to know how I can take a granite block and make that into grade AA surface plate. Granite block from the quarry who made a reasonable straight flat surface but is nowhere near precise. Just for a learning experience.
Great Attention to Detail! 😉 Can't wait to see the upcoming projects. I'm going to break the unspoken rules of machining videos and go a little political. TH-cam sadly tries it's hardest to tamper down any conservative voices. That's the bad part of TH-cam in my opinion. The greatest part of TH-cam is the ability to find genuinely kind and extremely helpful people, people whom are willing to share their years of experience to help further aspiring machinist and/or any other fields of knowledge "students"! We all thank you more than you realize Rob! Keep on keeping on!
Robin, between you and Lipton my brain is going to explode, you guys make the very complicated very understandable and for that I thank you both. Kindest regards. Joe.
I really enjoyed this video and look forward to the series. Any chance of a video on making your Hardinge backing plates? While they look simple, getting them right isn't obvious. I think it would be a good way to illustrate ATD as well as being a great resource for the community. I have found many videos on making threaded and D series back plates but nothing for the Hardinge.
...Attention to detail...Yeah, excellent title....!! I've never used Instagram, but will check it out, I'd like to see more of your work...besides the TH-cam...I worked at Burgmaster/Houdaille in the 1970's..NC machines with turret type spindles. I was Elec/Tech so some of my work concerned positioning accuracy. Depending on the customer orders, we used ball-screw shaft mounted resolvers, magnetic, and glass scales....what can you tell me about the accuracy of these.....I realize the ball-screw mounted resolvers were more dependent on leadscrew wear...
Hey Robin. Love your content. Question for you, or anyone else: I acquired a 24"x48" plate which was improperly supported at the very ends for 20 years. Metrology guys came by and said it was bent. It had developed a .002" belly that could not be taken out on-site. My question for you is, if I send it off-site to be heavily resurfaced, and then I *properly* support it, would I risk the plate "unbending" over time or do you suspect it would be stable? I'm inclined to toss it if it's even questionable. Thanks in advance.
Granite does not bend! That is just wear from it being used in one general area for too long. Have them glue the support feet on in the proper location before lapping and you will be good to go. If the surface plate people told you it was bent I might question their capabilities.
Hi Robin, This certainly taught me a lot I didn’t know about accuracy. Am now looking forward to seeing future videos on the subject. At my age and with the machines available to me I’ve no real use for this knowledge other than as knowledge. Keeping life interesting though. Regards
Hi Robin, great format and looking forward to many more to come. Thanks for clarifying the three plate method with regards to the stones. I did ask that very question on a particular machinists forum and did not get a definitive answer, on the contrary, it just about started ww3. Your explanation was exemplarily, thanks.
The title fits more than well Robin and as always an impressive amount of tricks and information shoe horned into each video. Very clever idea with the backplate's two flats for vise use. You'll hit over 100k of subscribers before this years finished I think.
Hey Robin, just wanted to thank you for putting up such a nice sampling of machining & metrology. Fun to get a glimpse of the world past the hotwrench, drill press, and angle grinder!
Great videos! ATD is extremely appropriate. I learn multiple things every time I watch any of your videos. I bet all of the pictures in your house are under .001”/ft to level! Which industry does the majority of your work come from?
Mr Renzetti I wish you were my neighbor cause I would be over all the time. :-) Also legend has it that Robs paper RepeatOmeter is so accurate that it can out repeat anything you can buy today ;-)
I saw the title and didn't know what this video would be about. What a pleasant surprise. I don't make videos, but I can only imagine how much time it takes to make one, especially these kinds of videos. Even though most of what you do and show goes over my head, it is a joy to watch and (try to) learn. Thanks Robin and I know I'm not the only one looking forward to more content!
Thanks so much for taking the time to share some of these projects on youtube and instagram. As a mehanical engineering student I've gotten an enormous amount of insight into the "why's" of what I'm learning and it's so helpful to get a peek at your perspective. All the best, -Adam
![[Live] ศึกมหึมันส์มวยไทยสังเวียนเดือด เวทีมวยชั่วคราวสวนสยาม | จันทร์ 30 กันยายน 2567](http://i.ytimg.com/vi/pM1k6f7JXUc/mqdefault.jpg)
Brilliant, great content there, thank you Robin!
Thanks Stefan, and thanks for watching and commenting.
Great title! I kept looking at that oil spot on your shirt....... Bravo my friend! In case you guys weren't paying attention to detail Robin showed a clue on how his Repeat-O-Straight-O-Meter works. I love how Robin just says stuff like, " Should be sub 5 microinch TIR, probably better......." End quote.
Talk to you soon.
--Tom
I think that spot might have been from dinner. Thanks Tom, means a lot coming from you.
ATB, Robin
I just barely watched this. Thanks! For the call out. I didn’t even know you watched my videos. I am so impressed with your technical ability. You do things I would be very hesitant to try. The caliper videos Wow! Your name of your video series is dead on. I am looking forward to your future videos. Again thank you!
Thanks Peter, I think the same thing about the amazing stuff you do. You are obviously the real deal.
Peter, I was recently made aware of your channel as well. You both have been more valuable than my college degree.
Hi Robin. I enjoyed the paper gages you showed. I have never seen those before. Clever concept. Thanks for the listing in your header. Much appreciated. As for your title, I like it. Too many people skip over small details that make all the difference. Just ask some of the people on amazing race that don't read the whole clue and ended up going home.. What type of lathe/machine did you use for the height gage demo? The slotted table in the background threw me off. Take care.
Thanks Joe, it is a Tormach slant pro with the full gang plate mounted. Thanks for watching and commenting.
Great video Robin! I’m looking forward to seeing how you will get those spindles to sub 5 millionths!!! Wow! Isn’t that 1/10th of a micron? Stefan will cry himself to sleep when he sees this...
Thanks, and thanks for watching and commenting.
Enjoyed Robin....honestly some of the info is above my pay grade....but I am always trying to learn and you are a great mentor...ATB
Thanks, and thanks for watching and commenting.
Thanks for another great video and the shout out Robin.
Steve
Thanks Steve, and thanks for watching and commenting.
I've been a toolmaker for 40 years, but have picked up so many useful tricks since discovering your channel .
Great to hear!
There are only 2 youtubers whose videos I watch the second I get a notification. This Old Tony, and Robrenz. And Rob is miles ahead when it comes to sheer skill and knowledge. Great to see ATD starting. I’ll be watching avidly!
Thanks, and thanks for watching and commenting.
Not arguing about the quality of the twoYou tubers that you mentioned, but you need to check out Clickspring!
Robin, You're a great teacher. Thank you for sharing your knowledge. All the best, David
Thanks, and thanks for watching and commenting.
The first time I've ever heard any of the TH-cam channels mention Joe Pieczynski. I was beginning to wonder if people had some beef with him. I always thought his content was fine, certainly better than some other guys that some of the bigger channels often praise.
No beef with me! He's a great guy with great content.
Had to watch it 3 times, I would get so fascinated by thinking about one topic I would miss the start of the next. Great stuff!
LOL me too!!
Thanks, and thanks for watching and commenting.
Hi Robin, could you put the TH-cam channel recommendations in the notes? I couldn’t quite find some of those you mentioned. Btw, very much enjoyed the inaugural “Attention to Detail “
Roben mentioned:
Stan: "shadon hkw"
Steve Somers: "steve somers"
Steve Barton: "solid rock machine shop"
Peter: "edge precision"
Joe: "joe pieczynski"
And I'd add:
Stefan: "Stefan Gotteswinter"
Adam: "abom79"
Tom Lipton: "oxtoolco"
These should lead you to even more interesting content.
LMGTFY
Stan Zinkovsky, grinding, electrical, bar z: th-cam.com/users/shadonhkw
Steve Summers, shaper, tooling: th-cam.com/channels/jrGHSAkAN0ac8aVejwPBvA.html
Steve Martin, tool & die, home shop setup: th-cam.com/channels/KPqKYF73sJbFUSzo5dQxtQ.html
Edge Precision, cnc, oilfield work, setups: th-cam.com/channels/CkSr3M8GXbS4txqPY7OMxQ.html
Joe Pieczynski, tips & tricks: th-cam.com/channels/pp6lgdc_XO_FZYJppaFa5w.html
Thanks for all your work in putting these out. It's a real gift to the world for you to share your experience (yeah, I'm sure the $4.87 payout each month is nice, but really....) The only complaint I have is that it's your fault that I'm reading the Foundations of Mechanical Accuracy, and now I regard my mill the same way I do an angle grinder.
Thanks, and thanks for watching and commenting.
Loved it, Robin. Don't need any bells and whistles, just good informative content brings us all back! I for one am looking forward to more ATD's!
Thanks, and thanks for watching and commenting.
"In the sub 5 millionths TIR range......." Whaaaaaat? That is not precision. That is PERFECT.
Thanks, and thanks for watching and commenting.
Loving the (working...) cardboard repeat-o-meter!
Hey that toolroom spindle looks familiar!
Love it, love it, love it. Thank you for sharing your knowledge.
Thanks, and thanks for watching and commenting.
Hi Rob:
Very interesting and useful information!
Do you have a reading list? Aside from Machinery's Handbook, other good reference and instructional books?
Keep up the good work!
"Foundations of Mechanical Accuracy" and "Holes, Contours and Surfaces" are two that come to mind i believe i heard about on robin's channel. not sure what videos, though
Perfect name for these shows and fits your approach to machining and precision.
Thanks, and thanks for watching and commenting.
Robin, not sure if you've discussed this but I noticed the shars chuck. What is your take on low price import chucks? Is that one adjustable for runout from the factory or did you modify it? I just ordered a shars adjustable 3 jaw. I don't want old, worn out chucks in my life any more and hopefully this will help me move forward. I would be interested to hear your opinion, and I'm sure other people would be as well. I also know that you use the CDCO aloris style tool holders which I just ordered a bunch of, maybe you could do a video on high value/low cost import tooling and associated modifications. I know there are a lot of videos like that on youtube but it would be very interesting to hear it from you. Thanks
I think they are good value and the better quality versions are pretty good. I spend several hours to take it apart, clean and deburr, and re lube before I even use them.
Thanks for the visual representations as you explain complex principles. Without which, it would be impossible to understand.
While I don't yet have the skill-set instruments or machines to execute that level of precision, I am certain the exposure to that knowledge will influence my work over time.
incredible information - great video - thank you!
Thanks, and thanks for watching and commenting.
'...ultra precise, hopefully...' I think we all know there's no need for 'hoping' or 'luck' to achieve that! No substitute for skill and experience. Can't wait for the follow up videos.
Wow, Robin, I was wondering where they were coming from :-) . Thank you so much for the shout out. I just caught this video at lunch today and have been looking forward to having the time to check it out and what do you know, A shout out from someone I look up to. Thanks again Great content Robin I love the detailed explanations and always learn just how little I know:-)
You are welcome, thanks for watching and commenting.
ATB, Robin
Thank you, Robin
I miss these types of videos gathered together. Instagram style has lack of comprehensiveness
How do you know if you've turned the plate by 90°, without any other measuring instruments?
Clearly described. Thanks for sharing your years of experience.
Glad it was helpful!
You and several other youtubers have inspired me to continually expand my breadth of knowledge and strive to be as good as I can be at whatever my career will be
That is really encouraging to hear, thanks for sharing that.
Just wondering, if you lap two stones in a circular motion, you should/would not end up with two stones with a matching twist in them. No?
Correct, I mentioned the 90 degree rotation was necessary to detect/remove the twist that could occur.
Great stuff. I love the technical side. I think whiffletrees are scary in application since if the pivot is not exactly balanced to the forces it imparts twist easily. What material are you using for your spindle blocks?
Thanks Brian, The spindle blocks are A2 at 62RC and thanks for watching and commenting.
Perfect name for your new feature. I admire your measured and thoughtful responses to your viewer's "concerns" which experience from other channel creators has shown are often expressed in a harsh manner.
Thanks, and thanks for watching and commenting.
Teaser...ugh...Really looking forward to this.
BTW, great idea for the new series, perfectly named.
Thanks, and thanks for watching and commenting.
Rob, thanks for your time.
I have learned a valuable lesson from every video you have produced.
I run a DMG MORI lathe with integrated Fanuc robot loader and ZEISS CMM 100% inspection. I make automotive components and “attempt” to hold a few tenths for 15,000 pieces a year.
I appreciate your content and continually look forward to your next post.
Thanks,
Jonny.
Thanks for watching and commenting.
Like the new series, details do make the difference! Also more opportunity for the Apprentices in the audience to learn :) Thanks Robin.
Thanks, and thanks for watching and commenting.
How did you cut those foam pieces into that shape :lol
jewelers saw
You really hit it with that format Robin! Still denesly packed with a lot of usefull information. But hopefully a little less demanding to edit, thus giving us viewers more chances to get to watch your griliant content?
Also, for those not aware of it, episode 10 of the podcast "the cogwheel" where you are the guest star is highly recommended! It's a unique oportunity to get to know a lot of details on your background and history. Which makes me want to know more. I hope to be able to hear more episodes with you! This episode is the best machining podcast I've ever heard!
Here is a link (if that works): thecogwheel.net/2017/09/02/home-shop-machinists-podcast-episode-10-practitioner-of-the-mechanical-arts/
ATB
Thanks, and thanks for watching and commenting.
Rich content, Robin. I enjoy your explanations of the subtle details, concise and accurate, just like the machining work you produce.
Thanks, and thanks for watching and commenting.
I think I just got another education by you. Thank you for sharing you of your vast knowledge of precision fabrication!
Thanks, and thanks for watching and commenting.
Robin, thank you soooo verrryyy much to take the time to make these videos! I know you are a very busy man, and these videos are time consuming, but that being said, you must know you are a enormous inspiration to many people around the world! Wish I could give you 100s of thumps up!
Thank you once again!
Thanks, and thanks for watching and commenting.
I have decided ! You are the Batman of the YT machinists !
Superpowers include : Common horse sense, Reason and a bite that does not release !
Kisses !
Paddy
Awesome format, Robin. Appreciate your time for putting this together.
Go go ATD #100
Thanks, and thanks for watching and commenting.
Darn hyperboloids!
Those plates didn't have twist, they're perfectly flat in at least one hyperbolic space. What do you mean machining is Euclidean only!?
Some former coworkers have lamented the loss of American precision machining, and the appearance of offshore(Chinese) measuring tools, which mimic American form factor,are much less expensive, and while not as precise come very close, but miss the mark.I can now direct them to observe your channel for their precision high.As I have also done. Thank you,Mr. Renzetti
Thanks, and thanks for watching and commenting.
The 'two footed twist gage' is new to me, such a simple quick to use tool!
Cheers Robin
Thanks for watching and commenting.
The three plate demo with paper stick figure precision instruments brought the whole concept home very effectively. You are an excellent teacher. Thanks again!
Thanks, and thanks for watching and commenting.
Very fitting name! Glad to see another video! Very useful on understanding the 3 plate method. :)
Thanks, and thanks for watching and commenting.
"I dont think so , Tim?? " lol --- well placed small joke
good content, useful information and as every time well explained . Thank you for sharing, i ll wait for the next episode .
Thanks, and thanks for watching and commenting.
Don't forget to mention Stefan from Germany, he gave props to your video on grounding stones 😁😁
Thanks for showing the two foot gage, didn't know about that, best regards from Barcelona and keep it up!
Thanks, and thanks for watching and commenting.
Very nice! Much of the info is straight out of Foundations of Mechanical Accuracy but not widely known, so it is great to see it presented.
Thanks, and thanks for watching and commenting.
3:14 to 7:23 Very clear and succinct description. Thank You so much.
About 1961 (I was about 10 years old) My dad took me to Bell Labs in Whippany NJ (where he worked) to see the first ever laser length measuring research device, a 2 ft x 3 ft x 15 ft slab of something (weighed tonnes) supported on fulcrum knife edge type supports(again I was only 10 relative to my grasp of the supports and process), and he showed me that just walking on the concrete floor next to the device changed the laser measured length. I was so impressed then, but I now find it absolutely incredible, and you sir take me back to the wispy times of my own pre-historical memories. I believe you "do measurements", test and verify, and make very real in a realm so inconceivable and incomprehensible to the average layman, that is as astronomical, and Hubble's constant, are so far away from "Pass the Salt Please" This poor example may make little sense to you, but I'm trying to express that I am extremely impressed, without insulting your incredible integrity, by my humble offering. I had forgotten, if I ever knew, that people like you exist. Again you make real, and test and verify, things that others I'm sure have no concept of.
Thanks for the very kind words and glad I could bring some good memories back!
All credits to you! Thanks Again.
We are learning a lot from Steve and family at Solid Rock grinding knowledge is really way up there lots to learn from them and so much more that I thought I knew and did not and now we do.
Great video! Love the variety of content and the level of detail you went into with each topic. Thanks for putting in all the work to make these videos for us all!
Thanks, and thanks for watching and commenting.
I cannot stop watching this channel. Great stuff.
Glad you enjoy the content!
Excellent, another regular series to get addicted to! :-)
Thanks, and thanks for watching and commenting.
How did you measure the lathe centre height accurately enough to justify the precision of the block ?
Gage pin in spindle indicated to minimal tir. Height gage on gang plate with indicator zeroed on plate. measure over gage pin and subtract half the pin diameter from that reading.
Thank you for taking the time to reply and for some of the most inspirational videos on TH-cam
Well done Robin , I enjoy the videos that you make .
Thanks, and thanks for watching and commenting.
Looking forward to episode #1592 of atd!
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Awesome to see a video series made by you. Can´t wait for the next episode.
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Good idea about the series...
You're sooo right about the time it takes to produce those videos.... ;)
ATB,
Pierre
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Superb 3 plate demo Robin. :-)
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Hey Robin great video as always one quick question question regarding the mounting of a surface plate. Would the three point method on each corner for geometric stability still apply to a granite plate? Seems the full 12 points would be the most precise way of mounting to eliminate the most sag.
Awesome! lots to process there, I napped though the first time, and watched it again, hopefully i retained some. thanks as always for support and inspiration!
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Brilliant. All I can say is, thanks. More please :)
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i need a nap now
How did you make that helical foam? That's what I wanna know
I've done this, cut out specific foam shapes. Template. Cardstock 5x5". Cut in half. Draw and cut two half-oval/ellipse shapes. Make a square of 1/4" plywood/MDF/etc., 5x5". Tack the cardstock to two opposite sides of the plywood. Cut out foam to fit between templates. Hot wire foam. Edit: He mentioned it in other comment, two words, 'jewelers saw.' :)
Hey I'm new here, good channel. The part about the stone rubbing you seam to be missing is. You're standing on the shoulders of a giant! The first guy only had the concept of flat. I would like to hear how we know something is square.
Thanks Robin for taking the time to share your thoughts and tips. Even if your discussion points aren't something that I can use in the near future, it always makes for a good thought exercise. ATD=perfect!
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All i can say is man it is good too see you back !
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I love it, Robin! Great video and I'm excited to see more in the future!
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If you don't pay attention to detail, use the "I'm a big picture guy" excuse. It sounds better than whining about how it makes your head spin. :)
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Thanks Robin, I think that was one of your best videos. Many people are confused over 3 plate self-generation and the requirement to also rotate the plates, and you explained that very well, even managing to slip in a heigth reference, though minus one point for then slipping back into English, ha ha. Using a twist gauge was brilliant and one of those "doh!" moments and I use a level and never thought of doing ways that way.
It will be very interesting to see that spindle coming along, it sounds quite remarkable.
Thanks for continuing to raise the bar.
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Awesome Robin! Always learn a lot from you. You've been teasing me with all that cool stuff on Instagram for awhile. Nice to finally get a more comprehensive update on your latest projects! Keep up the great work!
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You Sir are in the top 2 I watch as a amateur machinist. You, and i mean NO offense Sir, are by far and away the most anal and perfectionist machinist I've ever seen! You are slightly scary!! You're vids are OUTSTANDING but at the same time daunting. AGAIN, I mean no offense Sir. I like Tom, Abom79, both Keith's (Fenner & Rucker), Joe Pie, Peter Stanton, Tony and many others, but you Sir, are a step above and slightly beyond. I learn more from you then most in the least amount of time, but still kinda scary in your perfectionism!! No offense!! Happy new year to u and yours Sir. I look forward to ALL of your future vids!! It would be amazing if u could, or would, show one or two BLOOPER vids just to show that your fallible and human Sir!
Thanks for the very kind words, and thanks for watching and commenting.
I find this really interesting. I read that “Joesph Whitworth” was the first person to describe on how to get a flat surface using three plates.
But you say it’s not the right way.
If this is the case then who is the first person to obtain and describe a proper flat surface without Whitworth’s contribution?
I’m assuming Whithworth needs to be credited for being the first person to describe a basic understanding of obtaining a flat surface then newer undated proper flat surface techniques arrived later on from other scientists.
I didn't mean his way did not work. It's just that the third plate is unnecessary if you use a repeatometer to see which plate is concave and which is convex.
@@ROBRENZ I would like to know how I can take a granite block and make that into grade AA surface plate. Granite block from the quarry who made a reasonable straight flat surface but is nowhere near precise. Just for a learning experience.
@@ShopperPlug yes
I kinda want that paper repeat-o-meter lol
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Great Attention to Detail! 😉 Can't wait to see the upcoming projects. I'm going to break the unspoken rules of machining videos and go a little political. TH-cam sadly tries it's hardest to tamper down any conservative voices. That's the bad part of TH-cam in my opinion. The greatest part of TH-cam is the ability to find genuinely kind and extremely helpful people, people whom are willing to share their years of experience to help further aspiring machinist and/or any other fields of knowledge "students"! We all thank you more than you realize Rob! Keep on keeping on!
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Robin, between you and Lipton my brain is going to explode, you guys make the very complicated very understandable and for that I thank you both. Kindest regards. Joe.
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Excellent content, and great format. I learned some new words and concepts today. I really like your other in depth project videos also....
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I really enjoyed this video and look forward to the series.
Any chance of a video on making your Hardinge backing plates? While they look simple, getting them right isn't obvious. I think it would be a good way to illustrate ATD as well as being a great resource for the community. I have found many videos on making threaded and D series back plates but nothing for the Hardinge.
I will put it on the list
...Attention to detail...Yeah, excellent title....!! I've never used Instagram, but will check it out, I'd like to see more of your work...besides the TH-cam...I worked at Burgmaster/Houdaille in the 1970's..NC machines with turret type spindles. I was Elec/Tech so some of my work concerned positioning accuracy. Depending on the customer orders, we used ball-screw shaft mounted resolvers, magnetic, and glass scales....what can you tell me about the accuracy of these.....I realize the ball-screw mounted resolvers were more dependent on leadscrew wear...
Thanks, Glass scales are capable of the highest resolution and accuracy. laser interferometers are better yet. thanks for watching and commenting.
Informative and interesting.
Thanks.
Hey Robin. Love your content. Question for you, or anyone else: I acquired a 24"x48" plate which was improperly supported at the very ends for 20 years. Metrology guys came by and said it was bent. It had developed a .002" belly that could not be taken out on-site. My question for you is, if I send it off-site to be heavily resurfaced, and then I *properly* support it, would I risk the plate "unbending" over time or do you suspect it would be stable? I'm inclined to toss it if it's even questionable. Thanks in advance.
Granite does not bend! That is just wear from it being used in one general area for too long. Have them glue the support feet on in the proper location before lapping and you will be good to go. If the surface plate people told you it was bent I might question their capabilities.
Hi Robin, This certainly taught me a lot I didn’t know about accuracy. Am now looking forward to seeing future videos on the subject. At my age and with the machines available to me I’ve no real use for this knowledge other than as knowledge. Keeping life interesting though. Regards
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So happy to hear you're going to do these series! As always, thank you so much for sharing your experience and knowledge.
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Hi Robin, great format and looking forward to many more to come. Thanks for clarifying the three plate method with regards to the stones. I did ask that very question on a particular machinists forum and did not get a definitive answer, on the contrary, it just about started ww3. Your explanation was exemplarily, thanks.
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Love what you are doing Robin, great named series.... Keep it coming!! thank you so much...
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Well done Robin boy do I feel like the guy that brought the intellectual knife to an intellectual gunfight. Well done sir you do yourself proud.
_Dan_
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'I don't think so, Tim' perfect impression xD
Amazing channel, keep up the good work!
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Robin, many thanks for sharing your knowledge and experience. Atb from Italy
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The title fits more than well Robin and as always an impressive amount of tricks and information shoe horned into each video. Very clever idea with the backplate's two flats for vise use. You'll hit over 100k of subscribers before this years finished I think.
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Hey Robin, just wanted to thank you for putting up such a nice sampling of machining & metrology.
Fun to get a glimpse of the world past the hotwrench, drill press, and angle grinder!
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Glad to be in at the first episode of ATD. Now I'm finally go to have to break and join instagram if your there. Thanks for your time.
Will
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Great videos! ATD is extremely appropriate. I learn multiple things every time I watch any of your videos. I bet all of the pictures in your house are under .001”/ft to level!
Which industry does the majority of your work come from?
Thanks, machine tool manufacturers. Thanks for watching and commenting.
Mr Renzetti I wish you were my neighbor cause I would be over all the time. :-)
Also legend has it that Robs paper RepeatOmeter is so accurate that it can out repeat anything you can buy today ;-)
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I saw the title and didn't know what this video would be about. What a pleasant surprise. I don't make videos, but I can only imagine how much time it takes to make one, especially these kinds of videos. Even though most of what you do and show goes over my head, it is a joy to watch and (try to) learn. Thanks Robin and I know I'm not the only one looking forward to more content!
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Thanks so much for taking the time to share some of these projects on youtube and instagram. As a mehanical engineering student I've gotten an enormous amount of insight into the "why's" of what I'm learning and it's so helpful to get a peek at your perspective.
All the best, -Adam
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Aloha Robin, I can't add to the comments except thank you and keep this information coming. Mahalo for your time in doing this.
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