Precision Mechanics

In this video we talk about precision mechanics related to membrane flexures and differential screw systems. We make a few test parts showing these concepts applied to the Rahn Repeat meter collaboration project with NYC CNC.

[@fredgenius]

28:06

[@PracticalEngineeringChannel]

Very cool. Really enjoying this series.

[@forrestaddy9644]

Adding...

[@ErosNicolau]

I can't afford a shop. Not even a small one (living in a block apartment and the noise would be too much). But I love to watch and learn. And I know I'm watching the right people when, after a while, I get goose bumps finding out I can anticipate the same solutions to the problems they propose as the ones they find themselves. Thank you, Tom!

[@squelchedotter]

Thanks for also giving the values in microns!

[@rcoray]

Never cut a single chip. Never miss a single video. Your content is great...except the 3rd vid on lapping

[@billlee5307]

Priceless information for anyone designing fine adjustment into a device. Once again I have to say that this video alone would have saved me many days of head scratching back when I was designing and fabricating research instrumentation. Before I learned about differential screw mechanisms I used to go to swap meets and buy beat up old micrometers and use them for projects that required fine adjustment. I know the following remark betrays my prejudices and I in no way want to diminish the incredible power of software based design, but it is great to see design done in the shop with physical objects. Many thanks Tom!

[@FredMiller]

One of the best videos on the subject I have ever seen. Thank you for the tutorial!!! Fred

[@warpigs330]

One of my favorite videos you have made. I would love to see more design iteration like in this video. It really gives a good sense of the reality of designing a product and what problems you have to solve along the way, and how you solve them. Thanks for the excellent videos.

[@ROBRENZ]

Great video Tom, looking forward to seeing the final design and execution.

[@TheMadJestyr]

This is the kind of thing that makes me look forward to your videos. So many idea's floating through my head right now.

[@arnljotseem8794]

Differential screws, never heard of them before now. Wicked cool. Thanks for the knowledge transfer. Keep them coming Dr. Ox

[@ianjoubert7505]

Thank you mr Lipton, very educational episode!

[@ebenfourie9057]

Fantastic video Tom, always interesting watching your stuff and I learn several new things from each video. Thanks for posting this.

[@martinszinbergs2073]

Very nice video. Thank you for sharing your knowledge and showing a design process. I'm particularly happy that you showed how you made some prototypes and tested the ideas. Very important for this type of work. Very cool to see.

[@chrismayhew4531]

Thanks Tom, that was fabulous. Have added this to my "mint" playlist for future reference!

[@MikeBramm]

Another great video, Tom. Thanks for showing the various steps to getting finer and finer adjustment. The trick of using differential threads is awesome.

[@grahamspinks4801]

The description of the differential screw I found very interesting. I was looking for a way to hold a collet chuck in my pillar drill so that I could use it for light milling. The idea I came up also used two threads of unequal pitch to draw the arbor into the taper. Excellent video.

[@fredgenius]

Thanks Tom, great video. I found a use for the differential threads, I just finished making 3d printer bed adjusters using 0.7mm and 1mm pitch threads so the net difference is 0.3mm. Working perfectly!

[@ydarg1]

Tom, i consider you