Small Vice, Swivel Vice

Hate the crocodile clip type soldering holders so designed my own. Initially as a small vice to screw down to my soldering station. Then thought it would be more useful to be able to clamp it anywhere - so Mark 2 version. More thoughts and Mark 3 can swivel through 90 degrees to make it easier to get at points to solder. Can of course be used for other things.

Some hardware is needed:
8 x 70mm Hex head machine scrw plus nut for main adjuster - All versions
8 x 50mm Hex head machine screw plus nut for table clamp - all versions
3 x 6mm button head (2 of) for holding on the plate covering the 8mm Nut - all versions plus 2 more for Mark 3 swivel version
3 x 6mm Heat inserts for above (2 of) - all versions
3 x 16mm button head machine screws attache clamp bracket (2 of) - swivel version only
4 x 16mm Hex head machine screw plus nyloc nut for pivot - swivel version only
4 x 20mm Hex Head machine screw for swivel lock knob - swivel version only.