Making Faceplate Clamps for Watchmakers Lathe Part 3 - Watchmaking Vlog 44 

Possible solution: If you will still need more pressure you can drill a small hole in your circular clamps, thread it (M4) and just add a screw in each clamp. this will grip better your part.

Just found your channel and Subscribed. Very nice work

Hi I think your clamps will be just fine, happy new year!

Hack saw is a great workout for the arms, lol. I did the same for years, then saved up for a small, cheap import horizontal band saw ... that thing was the best purchase I ever made!

Nice job but I suspect they will need modification as I agree that they will need some method of tiling to clamp well. For small work and fine cuts they will probably be just fine but I recon if you start to load them they will slip.

Every advance has had its naysayers. Try it for yourself, and if it doesn't work as well as you'd hoped, learn and adapt. You never fail by trying something outside the conventional. And don't think in terms of time wasted - its all experience. You may look at some of your early work and cringe, but this time next year you'll be even better than you are now.

Looking forward to the final fixture.

dean great clamp idea, you could put some shims on the other side from the fixture the same thickness this will keep the clamp parallel to the face plate good luck with sawing the bar stock Pete Petewerks

Still not sure where this is going but it looks good so far!

once again ... love the video and your thought process :) .. one comment though ... in your video, around the 5:26 marker .. you might also see why they might have designed the old ones like that ... it lifts your working material considerably of the faceplace, giving you the opportunity to work "through the material" without worring about your faceplate .. where i would imagine your design uses the faceplace to clamp againts, or did i misunderstand your design ? :) anyway... i like new designs, keep up the good work :)

I suspect I might be one of the guys "pointing out flaws". Although, I would prefer to look at it as constructive criticism :). That being said: surface contact area won't matter much if the surface area isn't in contact. Which is the whole point of having the rear adjustment screw. I'm sure your rig as it is is very sturdy but as I mentioned earlier, it's probably due to the clamps working as stops. Try clamping down the lip of the fixture with just one clamp and see if it holds. This will become an issue if you plan to mount the fixture off center, where the body of the fixture won't be stopped by the clamps from flying out. Great work nonetheless! If trial and error is your way to go about that's cool. I offer my thoughts as you seem to be conceptualizing a fair bit about clamping forces and area of contact still. Regards Karl

It's a general comment, and I don't know if it makes sense in this application, but more surface=less local pressure, so maybe it won't hold as tight.