This is a bike wheel truing stand that was made with 3d printed parts, a harbor freight dial indicator gauge, and 1" (1/16" wall) steel tubing, which should cost about 1$/foot.
Parts total should come out to ~5$ or ~20$ counting the gauge.
gauge_holder.STL | 36.2KB | |
side_part.STL | 23.5KB | |
up_part.STL | 19.8KB |