Iron pipe bushings

thingiverse

I designed these bushings to allow a 1" iron gas pipe to fit inside a 1 1/2" iron pipe. It is being used to replace the flimsy tubing that came with my swing desk from Amazon which failed in multiple different ways quickly. By using the iron gas pipe, the desk is extremely stable now. The lower bushing also provides a 6cm lift from the bottom for the inner pipe.