Humanscale backrest coat hanger

https://makerworld.com.cn/zh/models/1885743-humanscalekao-bei-gua-yi-jia-v2#profileId-2089268

--------------------------------------------------Please go to V2 optimized version--------------------------------------------------

Backrest bracket adapted for human scale ergonomic chairs, fixed using fitting clamps

no supports

Not suitable for other models of ergonomic chairs

Requires 3 M6 screws (two with length 25mm or more, one with length 30mm or more) for fixing (but can be without nuts) The hole is designed for self-tapping, just screw it in firmly, it can be tightened without nuts (more stable with nuts)

Added a rivet configuration to replace M6 screws, provided separately in the print profile on the right, convenient for friends without hardware to print and install, but for those with conditions, screw fixing is still recommended

The size is designed to be relatively compact, if the fit gap is too large to insert, you can try scaling the x/y axis to 98% (or smaller) and try again, do not scale the z-axis
If the rivet can still separate the gap after passing through the hole, insert a printed square piece into the gap to fix it, and if you have glue, you can drop a bit

The headrest of this chair is too wide, clothes hung directly on it easily fall off, and leaning against clothes on the chair back is very uncomfortable

The upper and lower clamps are slightly different in shape, pay attention to which one is on top when assembling, if installed incorrectly, there will be strange gaps and misalignment, which are easy to distinguish

It is normal for the two ends to appear to have gaps after installation, after testing, it was deemed stable enough, so the screw anchor points at both ends were removed, sufficiently wide clamps ensure stability, leaving space for clothes to hang more securely and not easily fall off