Quote Originally Posted by cales2021 View Post
Nice design and love the handle.

A variant of this was by Gack and there is a kit for it available from Hemmingway Kits in the UK.
https://www.hemingwaykits.com/HK2350
The main difference is that Gack hinged the moving jaw and the tightening screw forces the top edge downwards onto the workpiece.
Sorry that is not very well described, check out Hemmingway's page for a better description.
Because I use a tooling plate rather than T slots I had to change the jaw mountings into slots.
I did a trial version as a 3D print and while this worked OK it needed side strengthening plates to hold the hinge pins.

Click image for larger version. 

Name:	tooling plate gack.jpg 
Views:	153 
Size:	29.8 KB 
ID:	45971
In the end I converted it to an all metal version which really grips the workpiece. See my blog waffle link below
https://altrish.co.uk/2023/01/06/gac...as-a-3d-print/

Alan
Thanks for the links & info, interesting