Sliding Door Track Lock - parametric

Lock a sliding door or prevent a sliding door from opening too far with this track lock.

I have uploaded STLs for M3 and M4 bolts, but the scad file is fully parametric if you'd like to adjust it further.

Hardware

Bolts M3 or M4, 16mm length or longer. Nuts are press fit, shouldn't need a soldering iron.

Printing

I printed this in PETG with 15% infill. Printed as the model is, with the U channel pointing up. No supports, Orca put a brim on it.

I'll update this if the print fails. Slightly worried about the U channel's sides cracking due to layer lines.

AI Disclosure

Initial design was generated by Claude Sonnet 4.6, but I had to massage it a little to get everything right. I wouldn't consider this AI slop though.

Keywords: sliding door stopper, sliding door bumper, sliding door top lock, sliding door security lock