Barn Door Roller Floor Guide
Floor-mounted anti-sway guide for a sliding barn door: four print-in-place rollers form a 37 mm channel for a standard 1-3/8 in (35 mm) door slab, so the door rolls instead of scuffing on a plastic block. The 80 x 72 x 30 mm base screws down with two #8 / M4 screws through 4.5 mm counterbored holes, and flared entry wings at both ends catch a swinging door; needs at least 8 mm of floor gap under the slab.
home barn-door floor-guide print-in-place