Pneumatic Office Gaming Chair Drop Fix Brace Print in Place

thingiverse

My office chair's pneumatic lift refused to stay up anymore, so I over-engineered a print-in-place support brace to hold it steady. The tolerances for the hinges are critical at 0.3mm, so be sure to adjust your slicer settings accordingly - especially if you're scaling up. I initially planned to print at 0.2mm but worried that the top hinge would fuse together, so I reduced it to 0.15 and it turned out perfectly. Once I removed the supports, it rotated smoothly without any issues. I highly recommend securing a zip-tie around the top of it for added rigidity. Scaling the width shouldn't be a problem as long as you go bigger - smaller will shrink the hinge pin gap tolerance even further. If you don't scale the height, you can try shortening it by moving it down through the z-axis plane or telling your slicer to stop printing a few lines early. Be careful not to overdo it, or you'll start cutting into the hinge. I've included a picture taken in Simplify3D with automatic supports enabled - that's what I used and it worked flawlessly.