Mastodawn

I made a fix for an old, very simple tripod that was given to me as a gift, so it has special value to me.

ABS plastic just fell apart after a while: base broke about 2 years ago, and now I fixed parts of the tripod head that broke few weeks ago.

I made the fixes in #OpenScad I published it under creative commons.

There are similar fixes for the models with 20mm base, but not that fits 17.5mm.

Too bad I didn't do it in time for the repairs contest.