Sunfish mast base cap

Did the bottom cap of your Sunfish mast go missing? Print one!
Two versions here, one similar to the standard mast cap, and one partially filled. The reasoning for the partial fill is that some PLA prints will compress under stress or shrink when exposed to heat (masts do get hot in the sun!). The partial fill helps to maintain the diameter so your cap doesn't loosen and fall out after the third use.
Some of my earlier prints sheared apart where the cap meets the mast tube. Try the reinforced version or maybe fill the empty one with epoxy.