Thanks Tony! I did think of that but realized your location on the planet had more effect so I am dynamically tracking your position and compensating in real time.
@@ROBRENZ Hahaha :D You really made me laug now. I've seen some of your videos, and I have to say I am VERY impressed! I have a few projects I hope to get more time to work on. In the meantime I try to learn as much as possible from your videos. Regards Steinar Norheim
Its called german time. Edit: Been watching robin videos for some time and always associated his technique and skills with german engineering and started callin him all kinds of mercedes, gut n tight, tons of fun. *then i found out that hes called renzetti, italian* i felt so dumb:( but the fun is balls deep hot oil masage.
Robin , I've been watching TH-cam since 2006. I have spent thousands upon thousands of hours watching random videos. I've got to say Your TH-cam channel is BY FAR my favourite. Your videos truly bring me joy. I just want to say Thank you for teaching us.
Yes. Robin and Stefan are my favourites. Robins stuff is many times way above my pay grade, but so facinating and always packed full of new and useful info. Thanks Robin for taking the time, your videos are Reference Class
@@ROBRENZ I think that what TamanacoC just said was that so far your channel is the best random content that he has already wasted much of his sorry life watching with drool running out of his stoned slack jawed face. High praise indeed!
kind of like the building of a middle ages church, multi generational project. 400 years from now his sir robin the 16th will just be putting the finishing touches on this bad boy.
Funny how the older we get our bodies become less than perfect, yet the older we get the more we strive to make our work perfect lol. great content as per usual Robin
Robin, I always learn from your videos. I created a 24X36" plate from a granite slab just before you started your project 2 1/2 years ago. It was 0.014" rough flat when I started. I never went to AAA but got it flat to A. Roughed with diamond honing plates then finished with a 9 X 14" cast iron lap smooth on one side and grooved on the other. Yes the grooves really make the difference and prevent skating on the granite cuttings. For those who don't understand your level weight compensation the precision 0.0002/10 level would easily show me walking around the plate deforming the concrete floor. I built my own repeatOmeter but it only shows 25microns. Thanks for your great work teaching!
This would drive me fucking nuts, the patience and dedication required for this is really off the charts. Getting anything perfect is hard, but a giant flat surface is a very high level of precision that i appreciate as long as im not responsible for making it.
Thanks for publishing this, I now realize I stepped over a few mistakes by starting with a 50# lap. Great info here, I wish I had filmed this process as I worked on my 3'x6'. I can see many of my own discoveries in this video!!!
Waited a long time for Part2, but well worth it. Instagram is nice and all, but it doesn't do justice to the amount of knowledge being freely handed out for all to see. I know making these videos is time consuming but wow what a gift. Thanks.
Most excellent video good sir! Anyone that gets ToT and Ox approval and accolades is in the super star category! Creating a true flat plane is 90% art and 10% science. You show the mastery of both!
3 ปีที่แล้ว +60
Look for his new video everyday. Watch the whole 1hour without blinking then the only thing i can understand is: he speaking english. Am i crazy or just stupid?
What I understood was that he wants to make the big stone flat. Very flat. Like you won't believe how flat he wants it. So flat that he needs to make many other flat things to flatten it just right with. Also natural diamond is more cutty than artificial diamond.
@John Nason, I was just about typing the same comment...as i saw the episode for the first time i immediately was thinking about Robin and his pink Surface Plate. lol
If it's ToT approved, you know it's gotta be right on the mark. Excellent work Robrenz! Your analytical measurement process is outstanding. It's been 20 years since I worked in a metcal lab....but this brings back a lot of memories. (Including a newbie ringing several of our better quality lab gauge blocks together and left them ringed over night.)
Stefan and Tony have spoken affectionately, well as affectionately as a person with oily hands typically does, of your activities in many of their uploads, now I see why. Glad to be here.
really enjoy watching and listening to you as you explain and show all the details of bringing to fruition a tool that is already beyond what most people can comprehend. thanks and stay safe!
Hey sir! I am only recently getting more tuned in to precision as I get more room and tools for a shop. While I doubt I'll be able to be lapping my own surface plate this year or next (or the next...), I love how you demonstrate and explain what you're doing. Understanding how you make it flat, the tools... It's invaluable for someone who is trying to get a grasp on the concepts in action. Cheers!
Your genuine enthusiasm for mastery of a new technique is inspiring. Your zero coefficient of B.S. is even more so. Thank you for allowing me watch you learn.
I learn so much from watching your videos. The majority of the things you do and say just cannot be found anywhere else. Thank you for taking the trouble to put these videos together.
Well worth the wait. In the last hour you have cleared up so many points that have been floating around in the backof my mind. Not least that you need to correct repeat readings for cumulative angle.
I see other comments poking fun at the lengths you go to to balance weights and forces on the plate. The phase of the moon was a good one! If that wasn't important to the process, you wouldn't do it. Most people aren't dealing with forces and measurements as small as the ones required for a near perfect surface plate. It's hard to believe they make an appreciable difference! I learned a lot from your videos, thank you!!
I think I found at least 10 things interesting in this video. Couldn't you lay that 14" optical flat on the surface plate and use images thru it to find peaks and valleys in the plate?
For that you need a grazing incidence interferometer. Adam @laneymachinetech and I just got our first fringes on black granite using this technique using sodium light. In theory we could set the unit up on Robin's plate and look at fringe patterns. It won't do the whole plate at once just strips up to 48 inches long. We could probably walk to Pennsylvania and hand carry the instrument in time for the next video. Cheers, Tom
I've recently become obsessed with machining and precision again. It's an on and off again obsession, among a few. I have been amassing related equipment and tools this time around. None of it will likely ever make me a dime of money. I might need to be checked into a ward. Scored a 0.1 micrometer resolution digital indicator for scrap price a few weeks ago. I'm pretty sure it works. Found an amplifier for 50 on ebay. Haven't pulled the trigger yet due to potential compatibility issues. I'm probably just going to settle for a couple of first-surface mirrors and a laser pointer to crudely replace the functionality of an autocollimator.
Really fascinating stuff Robin, thanks for sharing what you do! I spent the first 12 years of my working career as a metrologist in USAF and commercial cal labs, and find this project totally fascinating. While I was primarily involved in the electronics side of things, I spent enough time in the 68 degree room to really appreciate what you're doing. Thanks again for sharing!
It take's years to build a shop like your's (Has the kinda tools that get the results you want) I'm finding you have to do that tool by tool and you have to live with the result Robin you get some damn fine results There's so much in there I think three times thru could get my head around it though. Thanks again
About to venture into lapping my own plate after seeing the first installment a while back, so this video came out right on time for me. Thank you for making these video's Robin.
Thanks Robin for being the : Mork from Ork of machinists. My small surface plate will never be the same. My garage projects don’t need micron accuracy, but your video’s opened all of our eyes to the Holy Grail of precision. Who would’ve knew! Diamonds are a machinists best friend. Hi Tom! love your video’s also. Do I smell competition! Each and every one of you bring different prospectives to machining, some better than others. Keep up the great work.
So much information in this video, i really appreciate you explaining this and explaining what's going on in your mind as you work through this. This is a tremendous help to some of us out here that don't have near the skills that you do. I especially admire that you're more than willing to explain where you make miscalculation or learn something you can improve on while you work through this. Hat's off to you!
This is just fantastic Robin. Having the means to measure and then your swift reading of the signs has you on track. Watching as i comment so i am sure there will be tons yet to gleen from this. Very nice method and plan of execution! Thank you!
Hi Robin. I have no words, you have done a tremendous job. you have nerves of steel ... and not only =)) I now understand the depth of the problem and the flow of information when I asked the question 2 weeks ago ... I'm too young for that. great job, patience and good luck)
You cannot believe how excited I am to see this finally done... Oh man, my day is made. I don't have time right now, but this weekend, top of the playlist.
I would love to see a full video with that beautiful optical flat. Awesome info as ever, thank you Robin. PS. I can also attest to how good the flat stones are. Thanks to Robin, Stefan and Ca Lem for the inspiration to make them. Now I have other people who want them too.
Hello Robin, i am amazed about your detailed precision work. You perform art. Your videos are a Plaesure to watch. Please go on sharing and thank you for all you shared here allready!
My US Army calibration lab had several surface plates. One was a 48x96 inch AA and another was a 48" diameter, 20" thick AA plate. Years ago, we checked them using an auto-collimator and a couple of mirrors. Later on, we used an electronic differential level system that was tied into a laptop. It made the task much easier and quicker. It was interesting to see you use a counterweight to compensate for the movement of the plate as you moved the level. Whenever our plates were out of spec, we'd call in a contractor to refinish them. It was neat to watch them work. It was a father/son team that would push the lap back and forth across the table to each other and occasionally spin it in spots. They put on quite a show..
I love all of your content. Flawless in theory and execution. I read through a few comments. All great things said. I sat and thought all of us raving about a video of making a flat thing more flat with other flat things. 2020 was one hell of a year!
Thanks for another great video Robin, I love it when I see one of your videos in my sub feed. There are very few channels that I will watch every second of content they produce, and this is definitely one of them. I have actually watched most of your content multiple times, I still learn something new every time.
Totally amazed at the knowledge you Possess to pull this off! Great video love all your tips and tricks that you share here and on Instagram thanks for sharing this amazing knowledge!. And have a happy new year!.
I can't believe it's been two years since I subscribed... 2020 just kinda vanished in gray skies, a sense of apathy, and a whole lot of boredom. Good to see you back in the basement! :D
So cool! Completely out of my range but very interesting to watch. Since I discovered your channel precision ground flat stones are one of my favorite workshop tools. Now I'm looking for 3 small enough cast iron plates to learn basics of scraping using 3 plates method. Thank you for inspiration Mr Renzetti :)
Awesome video. Just a comment on 50:00 you showed the final flatness. The metric value is 0.254 um. I was really astounded at first how you got that precise but I think you got a little decimal error. Actually it’s 2.5 um. 😅 But really awesome video and great result. learned a lot.
For a relatively small group of people the next video will be more eagerly awaited than the final episode of Game of Thrones was for the rest of the country.
That's crazy, those diamonds you'll use for the new plate are made in the neighborhood I grew up in! When I was little it used to be a GE diamond plant, but then changed to Hyperion... I'm glad to see the project coming along though.
I am mesmerized by the procedures you go through to flatten a stone this flat. It is so interesting and entertaining. Now what would a realistic application be for such a flat surface to be used for? I mean only several millionths out of flat would seem to not matter anywhere in an application. Thanks for the time and effort you put into these exceptional videos and take care!
Precision errors stack up. And the surface plate is the datum surface for many other things. Tongue in cheek a machinist would say: "Measure with a micro meter. Mark with chalk. Cut with an axe!". When Robin wants to make a very precise tool to manufacture something else precisely he already have three layers of "stacking up" if he only used the surface plate to calibrate the tool he wants to make... but usually he needs a good handful of measurements, some of which are indirect (that is, measured from another measurement). So "going space cookie on the precision" in as many places he can is a good investment down the line.
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amazing work and process Robin!
I'm certain you accounted for the phase of the moon throughout this process?
Thanks Tony! I did think of that but realized your location on the planet had more effect so I am dynamically tracking your position and compensating in real time.
@@ROBRENZ Hahaha :D
You really made me laug now.
I've seen some of your videos, and I have to say I am VERY impressed!
I have a few projects I hope to get more time to work on. In the meantime I try to learn as much as possible from your videos.
Regards
Steinar Norheim
@@ROBRENZ 😂😂
Precise polar alignment is fundamental.
I waited years for this part 2. Thank you Robin.
I had deja vu when I saw this because I couldn’t believe he actually posted part 2!
Its called german time.
Edit:
Been watching robin videos for some time and always associated his technique and skills with german engineering and started callin him all kinds of mercedes, gut n tight, tons of fun.
*then i found out that hes called renzetti, italian* i felt so dumb:( but the fun is balls deep hot oil masage.
@@justinmoritz6543 I thought my PC's clock was a couple years slow ...But then I couldn't remember seeing this so I figured it really was new.
@@HanstheTraffer I could have sworn it was one of those "TH-cam Algorithm" moments just shoving old content in my recommended.
And well worth the wait! The quality and depth of information is awe-inspiring. Thank you, Robin.
Robin , I've been watching TH-cam since 2006. I have spent thousands upon thousands of hours watching random videos. I've got to say Your TH-cam channel is BY FAR my favourite. Your videos truly bring me joy. I just want to say Thank you for teaching us.
Wow, thank you!
Yes. Robin and Stefan are my favourites. Robins stuff is many times way above my pay grade, but so facinating and always packed full of new and useful info. Thanks Robin for taking the time, your videos are Reference Class
Robins the man! I bet a crisp bill he can send people to the moon wo challeger columbia nor faking it.
@@ROBRENZ I think that what TamanacoC just said was that so far your channel is the best random content that he has already wasted much of his sorry life watching with drool running out of his stoned slack jawed face. High praise indeed!
At this rate of video production the granite may decompose before he's done.....
Cheers,
Tom
Thanks for the well deserved criticism Tom. At least it will be done before the etching press ;-)
ATB, Robin
@@ROBRENZ That will leave the appropriate mark and sting. Ouch.
kind of like the building of a middle ages church, multi generational project. 400 years from now his sir robin the 16th will just be putting the finishing touches on this bad boy.
Oxtoolco throwing some shade>
Zing!
Funny how the older we get our bodies become less than perfect, yet the older we get the more we strive to make our work perfect lol. great content as per usual Robin
Robin, I always learn from your videos. I created a 24X36" plate from a granite slab just before you started your project 2 1/2 years ago. It was 0.014" rough flat when I started. I never went to AAA but got it flat to A. Roughed with diamond honing plates then finished with a 9 X 14" cast iron lap smooth on one side and grooved on the other. Yes the grooves really make the difference and prevent skating on the granite cuttings. For those who don't understand your level weight compensation the precision 0.0002/10 level would easily show me walking around the plate deforming the concrete floor. I built my own repeatOmeter but it only shows 25microns. Thanks for your great work teaching!
That is awesome Chuck!
ATB, Robin
"All this is approximate anyhow" - Robin Renzetti.
You're an absolute madman and I love it. Look forward to the thrilling conclusion.
This would drive me fucking nuts, the patience and dedication required for this is really off the charts. Getting anything perfect is hard, but a giant flat surface is a very high level of precision that i appreciate as long as im not responsible for making it.
A one hour video from Robin? That's exactly what I need right now!
Thanks for your hard work, I love your videos!
My pleasure!
Thanks for publishing this, I now realize I stepped over a few mistakes by starting with a 50# lap. Great info here, I wish I had filmed this process as I worked on my 3'x6'. I can see many of my own discoveries in this video!!!
Great minds think alike Lance! :-)
ATB, Robin
@@ROBRENZ Thanks Robin, only the best to you and yours!
I consume every frame and word as if it was the finest single malt, 12 years aged. Thank you. Well worth the wait.
Thanks for the kind words!
ATB, Robin
Waited a long time for Part2, but well worth it. Instagram is nice and all, but it doesn't do justice to the amount of knowledge being freely handed out for all to see. I know making these videos is time consuming but wow what a gift. Thanks.
Im not even a machinist and i feel your videos improving my work. Your atention to detail is contagious.
Glad to hear that!
Most excellent video good sir! Anyone that gets ToT and Ox approval and accolades is in the super star category! Creating a true flat plane is 90% art and 10% science. You show the mastery of both!
Look for his new video everyday. Watch the whole 1hour without blinking then the only thing i can understand is: he speaking english. Am i crazy or just stupid?
You are not crazy or stupid!
Thanks for watching,
Uncle Robin
What I understood was that he wants to make the big stone flat. Very flat. Like you won't believe how flat he wants it. So flat that he needs to make many other flat things to flatten it just right with. Also natural diamond is more cutty than artificial diamond.
@@andersjjensen LOL that is funny!
@@andersjjensen the Rick and Morty bit about true level says it all. th-cam.com/video/cr9Z9rWjoV4/w-d-xo.html
@John Nason, I was just about typing the same comment...as i saw the episode for the first time i immediately was thinking about Robin and his pink Surface Plate. lol
Robin, your channel is a treasure here on YT! Thank you very much for your hard work, keep it up!
Thank you for sharing this experience, the failures and success, the whole progress and taking the time to make this video. Much appreciated!
Glad you enjoyed it!
If it's ToT approved, you know it's gotta be right on the mark. Excellent work Robrenz! Your analytical measurement process is outstanding. It's been 20 years since I worked in a metcal lab....but this brings back a lot of memories. (Including a newbie ringing several of our better quality lab gauge blocks together and left them ringed over night.)
Much appreciated!
I'm a simple person. I see video from ROBRENZ, I click thumbs up :D
Stefan and Tony have spoken affectionately, well as affectionately as a person with oily hands typically does, of your activities in many of their uploads, now I see why. Glad to be here.
really enjoy watching and listening to
you as you explain and show all the
details of bringing to fruition a tool
that is already beyond what most
people can comprehend.
thanks and stay safe!
Glad you enjoyed it
Hey sir! I am only recently getting more tuned in to precision as I get more room and tools for a shop. While I doubt I'll be able to be lapping my own surface plate this year or next (or the next...), I love how you demonstrate and explain what you're doing. Understanding how you make it flat, the tools... It's invaluable for someone who is trying to get a grasp on the concepts in action. Cheers!
Getting it right certainly take a lot of work. Thanks for the video.
So glad we came back to this project!
Enjoyed the discussion/demonstration, thank you for sharing your time (&knowledge) to produce this video
Thanks for stopping by Chuck!
ATB, Robin
Your genuine enthusiasm for mastery of a new technique is inspiring. Your zero coefficient of B.S. is even more so. Thank you for allowing me watch you learn.
My pleasure!
You have the hardest core machining videos on TH-cam.
Really great Robin. Always learn something new. Thank you for sharing.
Thanks Randy and thanks for stopping by.
ATB, Robin
I learn so much from watching your videos. The majority of the things you do and say just cannot be found anywhere else. Thank you for taking the trouble to put these videos together.
Glad to help
Robin Renzetti...the "millionth dollar man". OR "Robin is one in a millionth".
This is great
We have the technology! We can rebuild him! ©
Well worth the wait. In the last hour you have cleared up so many points that have been floating around in the backof my mind. Not least that you need to correct repeat readings for cumulative angle.
I see other comments poking fun at the lengths you go to to balance weights and forces on the plate. The phase of the moon was a good one! If that wasn't important to the process, you wouldn't do it. Most people aren't dealing with forces and measurements as small as the ones required for a near perfect surface plate. It's hard to believe they make an appreciable difference! I learned a lot from your videos, thank you!!
I think I found at least 10 things interesting in this video. Couldn't you lay that 14" optical flat on the surface plate and use images thru it to find peaks and valleys in the plate?
The granite is not reflective enough to form a fringe image.
Thanks for stopping by Brian!
ATB, Robin
For that you need a grazing incidence interferometer. Adam @laneymachinetech and I just got our first fringes on black granite using this technique using sodium light. In theory we could set the unit up on Robin's plate and look at fringe patterns. It won't do the whole plate at once just strips up to 48 inches long. We could probably walk to Pennsylvania and hand carry the instrument in time for the next video.
Cheers,
Tom
@@oxtoolco I thought we were friends ;-)
@@ROBRENZ hey he just said he’d walk to PA for you carrying a grazing whatsit thingy, which I’m sure is very heavy.
@@sblack48 That proves we are friends :-)
I've recently become obsessed with machining and precision again. It's an on and off again obsession, among a few. I have been amassing related equipment and tools this time around. None of it will likely ever make me a dime of money. I might need to be checked into a ward.
Scored a 0.1 micrometer resolution digital indicator for scrap price a few weeks ago. I'm pretty sure it works. Found an amplifier for 50 on ebay. Haven't pulled the trigger yet due to potential compatibility issues.
I'm probably just going to settle for a couple of first-surface mirrors and a laser pointer to crudely replace the functionality of an autocollimator.
Do you plan to continue the series on the manufacture of spindle? Thnx
Yes
@@ROBRENZ really looking forward to this episode
Really fascinating stuff Robin, thanks for sharing what you do! I spent the first 12 years of my working career as a metrologist in USAF and commercial cal labs, and find this project totally fascinating. While I was primarily involved in the electronics side of things, I spent enough time in the 68 degree room to really appreciate what you're doing. Thanks again for sharing!
Thanks for sharing!
Incredible video Robin. really informative and eye opening. Thank you for taking the time to share your process with all of us viewers
Glad you enjoyed it!
It take's years to build a shop like your's (Has the kinda tools that get the results you want) I'm finding you have to do that tool by tool and you have to live with the result Robin you get some damn fine results There's so much in there I think three times thru could get my head around it though. Thanks again
About to venture into lapping my own plate after seeing the first installment a while back, so this video came out right on time for me.
Thank you for making these video's Robin.
Robin, a great way to start fresh on the new year, with a fresh lap on your surface plate. Well played!
Thank you Robin for another great long video 👍👍 Please keep them up
Thanks for the video, you are truly an amazing machinists, seems like your knowledge is bottomless.
Wow, thanks!
Nice to see that optical flat being used. I really need to make a small repeat-o-meter for myself. :-)
It will get used optically in the near future. Thanks again and missing you on IG
ATB, Robin
I sat here for one hour watching you talk about a very flat Rock😳😳 love it great video Thank you for Sharing🙏🙏
Glad you enjoyed it
Thanks Robin for being the : Mork from Ork of machinists. My small surface plate will never be the same. My garage projects don’t need micron accuracy, but your video’s opened all of our eyes to the Holy Grail of precision. Who would’ve knew! Diamonds are a machinists best friend. Hi Tom! love your video’s also. Do I smell competition! Each and every one of you bring different prospectives to machining, some better than others. Keep up the great work.
Always a treat with a new Robin vid.
So much information in this video, i really appreciate you explaining this and explaining what's going on in your mind as you work through this. This is a tremendous help to some of us out here that don't have near the skills that you do. I especially admire that you're more than willing to explain where you make miscalculation or learn something you can improve on while you work through this. Hat's off to you!
You're so welcome!
Awesome experience shared here. Useful for more than lapping.
This is just fantastic Robin. Having the means to measure and then your swift reading of the signs has you on track. Watching as i comment so i am sure there will be tons yet to gleen from this. Very nice method and plan of execution! Thank you!
unreal video i learned a ton. scraping on the wobbly table had me yelling at my phone lol.
Fantastic video. Love to see more lapping and high end metrology.
Such a pleasure to witness your Magnum Opus. Aim for perfection. :)
I adore very flat things, almost as much as the nearly-perfect Avagadro spheres. Thank you for all the time you put into the work and the videos too.
THANK YOU FOR TAKING THE TIME TO FILM ALL THAT CONTENT. REGARDS RICHARD.
Thanks Robin. This was really interesting stuff. I really appreciate your sharing all your patient work. We are all learning from a master.
No master, just a Practitioner.
Hi Robin. I have no words, you have done a tremendous job. you have nerves of steel ... and not only =))
I now understand the depth of the problem and the flow of information when I asked the question 2 weeks ago ... I'm too young for that.
great job, patience and good luck)
Thank you very much!
All the best, Robin
I’d say you aren’t a hobby DIYer, you’re a pro that only does in house work or work for friends… Nicely done
Thank you for producing this!
You cannot believe how excited I am to see this finally done... Oh man, my day is made. I don't have time right now, but this weekend, top of the playlist.
Hope you enjoy it!
I would love to see a full video with that beautiful optical flat. Awesome info as ever, thank you Robin.
PS. I can also attest to how good the flat stones are. Thanks to Robin, Stefan and Ca Lem for the inspiration to make them. Now I have other people who want them too.
Part two thank you Mr Renzetti
Hello Robin, i am amazed about your detailed precision work.
You perform art. Your videos are a Plaesure to watch.
Please go on sharing and thank you for all you shared here allready!
Thank you, I will
This is some mighty impressive precision work! Genuinely looking forward to the finale
Precision ground stones - 100% agree. Essential tools for any workshop.
My US Army calibration lab had several surface plates. One was a 48x96 inch AA and another was a 48" diameter, 20" thick AA plate. Years ago, we checked them using an auto-collimator and a couple of mirrors. Later on, we used an electronic differential level system that was tied into a laptop. It made the task much easier and quicker. It was interesting to see you use a counterweight to compensate for the movement of the plate as you moved the level. Whenever our plates were out of spec, we'd call in a contractor to refinish them. It was neat to watch them work. It was a father/son team that would push the lap back and forth across the table to each other and occasionally spin it in spots. They put on quite a show..
Happy moment: Robin put out another video!! Thank you for your effort and time.
Interesting thoughts. Thanks for sharing your journey.
My pleasure
I love all of your content. Flawless in theory and execution.
I read through a few comments. All great things said. I sat and thought all of us raving about a video of making a flat thing more flat with other flat things. 2020 was one hell of a year!
Great information and presentation Robin.
Glad you enjoyed it
!Patreon Friends, Let's keep him motivated!
Diligence, ingenuity, honesty.....OCD lol. Its a rare combination. Thanks Robin
Thanks for another great video Robin, I love it when I see one of your videos in my sub feed. There are very few channels that I will watch every second of content they produce, and this is definitely one of them. I have actually watched most of your content multiple times, I still learn something new every time.
Wow, thank you!
Ooohh it's here!! Can't watch it right now because I'm at work but cannot wait to watch this.
already had given up on part two
thanks for taking the trouble
I found everything interesting and useful.
You are an Excellent teacher.
Thank you,Chuck.
Glad it was helpful!
Totally amazed at the knowledge you
Possess to pull this off! Great video love all your tips and tricks that you share here and on Instagram thanks for sharing this amazing knowledge!.
And have a happy new year!.
Happy to help!
Thank you for continuing to provide these videos.
My pleasure!
Very interesting Robin.
I’m starting to believe that I understand everything you teach in this videos. By all means, thank you and Happy and Prosperous New Year 2021!
Thank you, Rob, for the interesting video.
Nice job Robin!
Steve
Thanks Steve and thanks for stopping by.
ATB, Robin
I made a set of stones they are fantastic! Thanks Robin for showing me years ago....
Glad you like them!
RobrenZ this is a very fine video, explained very well and made easy to understand. thank you for this excellent work
Glad you enjoyed it!
I can't believe it's been two years since I subscribed... 2020 just kinda vanished in gray skies, a sense of apathy, and a whole lot of boredom. Good to see you back in the basement! :D
This video was well worth watching. Some interesting techniques and as always learned a bunch. Thank you Robin.
Glad you enjoyed it!
I enjoy every bit of knowledge that you distribute through your channel thx!
Glad you enjoy it!
Thanks as always Robin. Very educational
So cool! Completely out of my range but very interesting to watch. Since I discovered your channel precision ground flat stones are one of my favorite workshop tools. Now I'm looking for 3 small enough cast iron plates to learn basics of scraping using 3 plates method. Thank you for inspiration Mr Renzetti :)
Great to hear!
14" optical flat! Wow!
Spoilers!
No kidding. Hold on while I whip this out.....Shazzam!
Highly interesting, great work!
Glad to see any distraction from the political news, but this one is so welcome. Thanks.
Nice to see you back Robin - Season's Greetings and thanks for the video.
Thanks, you too!
Awesome video. Just a comment on 50:00 you showed the final flatness. The metric value is 0.254 um. I was really astounded at first how you got that precise but I think you got a little decimal error. Actually it’s 2.5 um. 😅
But really awesome video and great result. learned a lot.
Thanks for this Robin. I have been sitting tight waiting for part 2. A lot was learned.
Reuben
Glad you enjoyed it!
For a relatively small group of people the next video will be more eagerly awaited than the final episode of Game of Thrones was for the rest of the country.
LOL
That's crazy, those diamonds you'll use for the new plate are made in the neighborhood I grew up in! When I was little it used to be a GE diamond plant, but then changed to Hyperion... I'm glad to see the project coming along though.
6:30 Now that's how to use paper towels! I hate the 1/2 sheet rolls, I either need a full sheet, or an entire roll. Especially when i'm painting😀
I will be needing this information in the future. Thanks.
Here's to another RobRenz video making us feek small. Thank you for showing the way Robin
I am mesmerized by the procedures you go through to flatten a stone this flat. It is so interesting and entertaining. Now what would a realistic application be for such a flat surface to be used for? I mean only several millionths out of flat would seem to not matter anywhere in an application. Thanks for the time and effort you put into these exceptional videos and take care!
Precision errors stack up. And the surface plate is the datum surface for many other things. Tongue in cheek a machinist would say: "Measure with a micro meter. Mark with chalk. Cut with an axe!". When Robin wants to make a very precise tool to manufacture something else precisely he already have three layers of "stacking up" if he only used the surface plate to calibrate the tool he wants to make... but usually he needs a good handful of measurements, some of which are indirect (that is, measured from another measurement). So "going space cookie on the precision" in as many places he can is a good investment down the line.
Well said!
Thank you so much for another fascinating video. My I ask why you chose to do the lapping dry instead of wet like the lens grinders?
Granite is temporarily affected by water so not used for precision finishing steps.