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A day at the lathe... pen vice made!
Looking good, many different ways to solve the same problem. I have also seen similar with squishy rubber too.
I tried a squishy rubber one last time but think my rubber may have been a bit toooo squishy... it was like trying to turn up a piece of spaghetti
I'm going to make up sleeves of brass with longer cuts in them, so that with any luck this one chuck will be usable for all internal diameters by adding the relevant sleeves. I tried one yesterday out of a bit of steel but the combined resistance started getting a bit too much.
Penpal
Grand Master
Wow all this hocus pocus. Important to decide at some time just what you would like to end up doing well. Reminds me of bees circulating and distributing .
Have fun,I do.
Peter.
Have fun,I do.
Peter.
It was a long weekend, so I may be missing your point but... well... I have no idea what you're trying to say?
I needed a tool to do what I wanted well, I made a tool to do what I wanted well, where is the hocus pocus and why would it impact on any decision?
wm460
Grand Master
- Joined
- Mar 16, 2013
- Posts
- 23,113
- First Name
- Mark
Nicely done del.
AllenN
Fellow
Looks a very handy piece of kit. Well done.
A good idea Del. One thing I can see and don't know if you agree is that it will hold on the end but at the other end will allow the tube to go off centre as that end does not expand. Could you have not made the expanding piece from a tube with slots either end and a centre bar which has a fixed cone one end and a screw cone at the other?
Just an idea you may think it is just rubbish
Just an idea you may think it is just rubbish
The first version I made did almost exactly that! It wasn’t very stable, so I just machined this as a light interference fit to the tube size, and will do the same for the sleeves. It needs only a slight “push” to fit The tubed wood over the Chuck, but it can’t run out of true.
It’s very much a specific sized chuck, hence sleeving for other sizes. To tighten the tube on the chuck takes only a single turn of the thread (and it’s a fine thread!)