T-Slot Screw Inserts. Two styles
thingiverse
Push-in spring loaded grommet for attaching things to T-slot system. Has hole for a screw. These were made using the Vention profile. The slot width is 8MM The square one clips in, the round one needs to be inserted from the end. Clip-in are designed to go in, not out, so they may need to be slid out the end or broken to remove. Once a screw goes in, the part will lock into place, so it could also act as a stop. Printing flat part up/dn makes it resist the leg breaking. 2nd set of the models are to hold a 2X10mm magnet. Should fit tighter in the t-slot also. Maybe a bit hard to get in if using PLA, maybe a punch and hammer will work. The Orchard edit tree if something needs an adjustment: https://3dorchard.com/app/single/5908fccdf25de30d48a92b0b/597a495c184bb80d431e3644
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