Boundless Terp Pen Replacement Cap
thingiverse
Do you have a Boundless Terp Pen and don't want to pay the company 7 dollars plus shipping for some replacement caps? Here you go! This is a very rough and quick little cap that'll fit over the coil end and seals against the body of the pen. Flip it upside down for easier printing. I don't have a Terp Pen XL, so I can't do the measurements for that. Sorry!
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