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- เผยแพร่เมื่อ 23 ก.ค. 2018
- Some toolroom tips on spin grinding with a screw mount of the part.
Special trick to keep part from moving when final tightening part.
Lots of subtle details covered.
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Understanding how the Renz thinks through a task, and then seeing him share it with others...priceless...🙇♂️
There's no other machining channel I've found that is so mesmerizing (because of the intense learning). You are a natural born teacher, and very easy to follow. As usual, I'm at a loss to complement you adequately, other than to simply say.......Brilliant!
Joe Pie is awesome as well
I won't disagree with that.
Very nice complement!
You have elegantly stated my thoughts for me.
Thank you.
Mr Renzetti presents his thoughts very easy to digest.
It's been a zillion years since I've done anything that fancy. Back in the '60's, we didn't have fancy V-block spin fixtures and 0.00005 graduated dial test indicators but we did have LVDT gage heads and amps (vacuum tube!!) and what we called "block centers" and got by. The toolmakers scoffed at our ham-handed efforts (we're no fools, we did pump their brains) but in the end we hit our tolerances, concentricities, choke angles, face dimensions, etc AND and finishes using a Bryant internal grinder and a B&S surface grinder without building a system of laps.
I recall a lot of planning and careful set-up but once we got rolling we did the whole batch in a shift or so. Nice thing about tiny parts, the cycle times per feature are very short.
Thanks for the sentimental journey. Haven't thought about that free shuttle(?) servo job for many years.
I worked at Burgmaster Turret Drill Company in the 1970's....I was Elec/Tech but did get involved in final test of spindles, we also used the electronic gauges, and seems they were well with a micron or so......? A lot of the bearings and the hydraulic valves were assembled in a temp controlled clean room.
I work for Renishaw the precision metrology company (and have done for 10 years), and watch these to try and hone my knowledge, and never fail to learn something and to be amazed at your attention to detail. You truly are a master of your trade. Thank you for passing on your experience. I will try and put it to good use.
Thanks for the very kind words and I am glad you are finding the content useful.
Every video you post is just full of good tips and tricks. Thanks a lot!
Love the comment "like being rubber and responding that way". Words to remember for setups in almost any operation. Great segment Robin! Thanks for sharing.Fred Ontario, NY
As a retired machinist/toolmaker I'm still learning tricks. You have a real gift for sharing and explaining. Thanks for sharing.
Very interesting. "Everything is rubber" really makes you think.
Nice. Always a pleasure. Thanks Mr Renzetti!
Sometimes it is difficult to decide if your techniques purely come from technical knowledge, or creativity. Or both. I vote both. Either way, I’m always blown away. Thanks for taking the time to make these videos.
Thanks for the kind words, in my opinion God gets the credit either way.
ugh
Absolutely outstanding. Isn't it amazing how everything matters at these tolerances!
Thanks for the explanation. Even those of us who do not approach your level of precision can use the tricks you show us to improve our work.
Thank you! Excellent tip. As always, fascinating and instructive.
Great stuff Robin, big thanks for your willingness to share your knowledge !!!!
Love it. Ultimate power - having the tools to make your own tools.
Thank you for a glimpse into the mind of a seasoned professional, Robin. Keep em coming!
Another invaluable lesson in precision. So much to learn, so little time...
As always thanks for taking the time show us these techniques. Always something to learn from you
Robin,
You have hit your stride with the Tool Room Tips theme. Each presenter needs their own theme that matches who they really are. This is you!
Videos like this one are extremely valuable for anybody who wants to be a really good machinist. This video fits well with the Deckel Clone video. Thank you for doing these videos. You are helping me immensely. Please keep it up.
Thanks Robin, I always learn from your videos!
Excellent video! I love learning new setup techniques for my indicator. The indicator does not lie. Your making us all better each video
Robin, thanks for a very factual no drama video.
Thank you for your time in making these. Really enjoy wayching you finess and the explanation behind it
Tks Will
Very nice fixturing work. You always find the oddball jobs and come up with great ways to get the job done.
You are a finesse master! This is a great video, thank you for taking the time to share.
Thanks, good hints there!
Love the grinding related topics.
Thanks Stefan!ATB, Robin
Great video Robin! Thanks for sharing.
Thanks so much for another spectacular and educational high content video.
Yeah, always worth a thumbs up...if not for content, then for the effort..
Brilliant and a well done video, another Renzetti masterpiece.
Good stuff. Every time I watch your videos I get the urge to buy a surface grinder. I've always loved that kind of work. Like working through a puzzle. Thanks!
Thanks for sharing robin, the #1 i find very exiting.
You gave me so many ideas, thank you for the video, great setup.
Nice and simple motor drive. Excellent video as always.
Wow, I feel I have joined a very special club. Thank you from a jobbing machine shop man who likes extending his knowledge.
A great lesson, Rob. Many thanks.
Quite interesting setup. Thanks for the tip.
Paul
Excellent, Robin! Thank you.
Thank you for sharing your knowledge - I really appreciate your work.
Oh how i love this stuff! Thank Robin
Great job, Robin.
Robin: love your videos: Keep up the good work and keep them coming! Really useful information.
Thank you for these tips... :) I will have a project involving 5 axes grinding in January and I will definitely grind in place the face of the arbor that holds the parts. Thank you for mentioning it, I probably would not think of it otherwise.
Hi Robin, that was impressive. I enjoy the tips & tricks lessons! I find myself employing them as necessary. they sure provide a challenge and a nice result!! Makes folk wonder how I figured it out so quickly!!
Your videos, I don't mind watching repeatedly!
Love your stuff! :)
Glad you like them!
Good tip Robin. I always learn something from your videos. Thanks
Using that bearing race for a quick centering tool...!
Always enjoy you videos, thanks for sharing.
I'm a wood worker and pen turner and I can always find something useful in your videos involving fixtures and setups. Thank you so much for making these videos as I doubt I would get such a wealth of tips and tricks even in formal education. I find myself mounting objects on mandrels all the time for turning and I run into the same issue of things moving on me.
Very clever setup Robin. Like I keep telling my guys.... sometimes you just can't get away from indicating each part when trying to hold tight tolerance work. Good stuff.
Thanks for posting another great video! I love all the creative workholding solutions you detail in your videos :-)
Very nice. I love the pragmatic approach and the focus on accomplishing the job with simple, efficient processes. Keep up the good work. Now I just need a surface grinder...
It's crazy when working at this level of precision, how every little thing can effect your work.
At work iv been working on very large parts (35+ inches). This adds a whole new level of thinking, .004TP on a small part, no big deal on a good machine, now try it on features that are 32in apart that are measured from a datum structure with 3 planes that are 24 to 36 inches long. Now your datum plane flatness and perpendicularly will throw you a mile off.
Awesome video on how important your setup is! Repeatability is key!
Great tips! - thanks Robin.
Really great solution - I never mount anything on a screw because it never works well enough for what I'm trying to do, which necessitates way more complicated/finicky setups. This is a fantastic fix. Thanks for sharing Robin!
Keep em coming!
I enjoyed this very much.
Very nice Robin, Love the idea for the tool box.
Thanks Randy
ATB, Robin
Good stuff as always, Robin!
Thanks Max
ATB, Robin
as always, fascinating content and great video - thank you!
Happy New Year! Thanks for all the content in 2018!
Fascinating!!! Thanks for sharing!!!
Great tips Robin.
I'm not sure whether to thank or curse you for making me want to use a 50 mil's indicator. Thanks for the great videos.
Cool!
Love the torque force absorber!
:)
always interesting to see your thought processes and outcomes. Thanks for sharing . ATB Mat
Great Demonstration, I learn from every one of your videos. I have yet to use my surface grinder for cylindrical parts.
Good to see you again sir
Another great video. I can't wait to fire up my new surface grinder. Actually on the mounting with a bolt or screw, I've been a great fan of studs and nuts for a long time. No torsion and the stud can be fixed (Loctite) into the part. Length is always preferable to get the elastic stretch that also adds to the feel of how much preload is applied. I have worked for ASML and they have mini stretch bolts made (M6 etc.) where the center section is turned down to a bit below the thread root diameter. They prefer no Loctites in their assemblies (in the critical areas it's prohibited) so this is one old fashioned mechanical way of achieving a good and lasting preload. Studs and nuts as well as finer threads would be further improvements. But they also use these bolts to be able to pre-assemble them into the assembly so that they are one unit. Which may well be the primary or the only reason for this solution. Pretty neat anyway, albeit a bit over-engineered, like most ASML designs :)
You probably just helped me with something on my coffee grinder (Indexer) about how to get something aligned, let's see how it turns out in the next week or so...
Great you take some of your precious time to get this available to all of us... ;)
Thanks Pierre and thanks for stopping by.
ATB, Robin
You are definitely the king of precision
I don't think you can have two kings, so I'd make him a Prince of Precision along with Tom at Oxtoolco.
Great info Robin, Thanks, Doug
Very cool Mr Renzetti, 👍👍💪💪👌👌
Enjoyed it. Thanks for sharing!
Hi Robin I do not have a grinder but I have to say I find the way you tackle your grinding jobs very interesting !
Great video! Thanks for sharing.
A master at work!
Pretty slick, as always.
Thanks so much more I did not know. Great tips
Tks Will
Thank you for the lesson!
Excellent as usual
I started down this machining path as a hobby about a year ago. I am quickly running out of room to store tooling and other equipment. I can’t imagine how much space you must dedicate to store all of your unique/purpose-built equipment. And how you manage to label/keep track of all of it.
Awesome as usual
that's pretty dang clever. thanks for the tip.
👍you are the Bruce Lee of the metal arts! Thanks for sharing!
James ya he is...no doubt!
That's me all day long! Nice camera work
Amazing as always! A bit more insight of using the DC drive to power the drive motor would be welcomed by at least me!
Thanks so much for taking the time to share your talents! Jim
thank you Robin.!
Already In withdrawal and looking forward to .no 2
kind regards John Spargo in Cape Town
scjoh.
I have fought that very same thing, thanks for the great solution.
Thanks for stopping by Stan
ATB, Robin
nice little setup!
Great idea!!
Thanks you Robin !
Great vid!
As usual very nice video, thanks. Tell us more about how you did the drill motor's business end.
Thanks Craig
Super video...discussion/instruction/demonstration....awesome...
Thanks Chuck and thanks for stopping by.
ATB, Robin
beyond exceptional...
Great tip!
Thanks Robin.👍 Enjoyed
Thanks Steve!
ATB, Robiin
I learn from Rob, laugh at Tony, shake my head at Ave,marvel at Stefan wry wit, and then have a bowl of ramen from Alex. It's a good day. Still want to see that surface plate tho'. :)
With these guys, "TH-cam University" is not such a joke ...
Excellent comment, Sir!
Glenn
Alex French Guy Cooking
(Start with Tony's pasta machine video)
Excellent.
Thanks Rob
thanks for the info keep up the good work.