Simple and fast linear toggle clamp.
Need 3x M4x25-35mm bolts with nuts and 1x M6 nut and bolt in convenient length for the end adjustment.
Increase walls for stronger part.
I added some glue on the M6 nut on the end of the toggle pin.
The push block is just a loose fit, I will probably go for another material for it in the future.
I opted for no handles, but these can be glued in place.
Approx. 30mm travel