Small foam roller
prusaprinters
A small roller for your arms. I use it after a (javelin) throwing session.Printing instructions:I printed mine with 0% infill, 0 top and 0 bottom layers and 6 walls (at 0.6mm line width). I think you can do 4 or 5 walls as well, it will still be strong enough. Any layer height you prefer for faster printing (I used 0.24mm).
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