Hold down clamps, what do you use?

[JAZZCNC]

I made these simple longish slimline clamps from scrap 10mm Ali plate, they work well and allow for some akward positions.
I can also use them in different ways for either single material clamping or if I need or want to cut a few jobs at same time from differant materials pieces using offsets, like for small jobs out of offcuts.!

I also have some stupidly expensive Swedish Kopal clamps that I use for things like surfacing jobs due to the way they clamp the sides of material.

The pics should give you an idea, they are just for show purposes here but it's not unusal for me to use similiar setups while working and setup some work offsets,G54 G55 etc then combine the code for several jobs in one G-code file set it off and walk away. Thats the beauty using work offsets with small jobs and a large bed.