Black & Decker Workmate Leg Spring/Clip
Remix of https://www.thingiverse.com/thing:22355
Print in TPU 95A
Put a little grease on the two contact surfaces since TPU is grabby and doesn't let the leg slide into the locked position easily.
Might not "go over center" when opening the leg at first - once the TPU takes a slight set, the leg will slide over and lock pretty easily.
Hopefully this ends the print - use a few times - snap cycle.