PCB Clamp

thingiverse

I saw this jig "The Revolutionary SBSS from W1REX & QRPme" at QRPme.com and figured I'd give it a try. Their product is machined and almost certainly superior, but... I added a wedge cutout to make space for parts that might already be soldered. Probably should have just made the slot wider. I used 1" nylon 10-24 knurled thumbscrews. I cut two short for the back/thinner wall. I used a taper tap for the 10-24 holes followed by a good, OSG spiral bottoming tap. I ran the bottoming tap through each hole until the screws turned easily (2-3 times). I used a similar bottoming tap for the 1/4-20 hole on the bottom. I got into a discussion about the undercut and came to the conclusion that it made sense at the time as they often do at 2 or 3AM. In the updated scad file, if uc_side is 0, no undercut is made. I added an STL file with no undercut.