Mainstays Office Chair Repair - Back Rest Bracket

thingiverse

I snagged some super affordable office chairs (~$20 each) from Walmart last year (Mainstays brand). The backrest brackets were severely lacking in quality and have begun to give out, so I swiftly designed a replacement. Directions I printed this one in black ABS, 0.3mm, two shells, and support activated (for the overhang inside the bolt holes. Unfortunately, I picked 10% infill, and an impressively high print speed, so it turned out relatively flimsy. I would recommend using 30 or 40% infill, and maybe more shells (3 or 4) for a more durable part.