I use a lots of Jigs in woodworking and always need a knob with a bolt to hold something in, down or what ever. Usually a lathe and bandsaw job. But I have a laser now!!
So designed it so the handle size is Parametric so you can vary the head of the knob size. The bolt is always 1/4 x 20 hex head. Designed in Fusion360. The design in Fusion in only used to generate a DXF so don’t get confused by the fact that every component is .1 inch thick. You just need the lines. There is a specific sketch that is labeled " 4 dxf out" that has everything in it you need to output.
The 2 parametric items are:
“hor_len” - controls the handle size in inches
“Fillet” - controls the curveyness(?) of the handle
4 layers of Lowes ply .2175 thick for my purposes
top - nice handle shape and has hex cutout for the bolt head.
next - same handle shape but 1/4 hole for bolt shaft
bottom 2 - spacers to hold the handle top out (just comfort)
A little bit of 2P-10 to glue everything into a stack and you are ready to go.
The zip contains:
1 - fusion 360 file
2 - dxf output from fusion for Inkscape
3 - svg out of Inkscape for GF