I'm looking for an answer to my problem
I need some help. I made my wife a frame for her embroidery that she can use while sitting on the couch. Right now, I have it designed so she can position the working frame in any direction her pea pickin’ heart desires. The only problem she has is the position of the arms will not hold when she puts some weight on the frame, no matter how much she tightens the bolts. I think I know the solution, but don’t know what to call it or where to find it. I think I want something like an unthreaded “T” nut (or washer) that has a grooved flange that I can embed into each opposing arm. Does this question make any sense? I’ve added a couple of phot...