Kondia FV-1 Head disassembly

[Mayhem]

(05-10-2015, 08:17 AM)PixMan Wrote: I do see one other reason why I like a 5C collet block: The collet "nose" isn't larger than the block.

This feature allows the collet block and workpiece to be held in the middle of the vise jaws where the force won't shift the movable jaw to one side or the other. The ER style has a nut much larger than the collets so you can't as easily get it in the middle of the jaws. A parallel spacer on either side of the hex/square of the block solves that.

The cutter in use is perfect for the application, and looks vaguely familiar.

Thanks Ken - what I didn't capture in the picture is that I had the square collet block sitting on the other side of the vise, so that the jaws were parallel when tightened.

I got that F4042R cutter of a guy I know in central MA, who I met on some obscure corner of the internet. Turned out to be a really nice guy who sold it to me for a ridiculously cheap price. It has sat in my cupboard for far too long and I am really happy to have finally been able to use it and I am really happy with it.

(05-10-2015, 08:26 AM)DaveH Wrote: I won't come undone provided it is tightened correctly (normal force).
To rely on the fictional force between the nut/bolt head and the component to stop the thread coming undone is not the correct way to tighten a thread.

Hex milling - have you tried a smaller cut say .005" to .010" to see if the dimensional difference decreases.


DaveH

Thanks Dave - I ran out of time but I will try some test cuts on some scrap and see if it makes a difference.