Lever Action Clamping Screws

[Christophe Mineau]

Hi Paul, very nice job !
I see you are using your lever screws on the sides of the dovetails of your slides. I suppose it is for pressing the wedges that serve to reduce the play in the dovetail ?
This is something that I have a lot of difficulty to setup on my Chinese lathe.
You seem to have one single screw for that where I have several little set screws (so tiny head that they will end up to be worn sooner or later), and they are locked using a slim nut.

I feel my slides are whether too loose, and I have vibrations or even worse, I sometime see the tip of my cutting tool rolling under the piece .... Or I have them too tight, so with no play, but the cranks become difficult to turn ...

Could you provide an advice on how to setup properly these screws ? Maybe I should replace them right now by scews with heads or knurled buttons like you.

I don't see any locking nut on your screws ? no need for that ?

Thanks in advance !
Christophe