Helping Hands base

Holder for adjustable helping hands soldering aid.
Fits models with 50x50mm +/-1mm base. Outer diameter 160mm.

Original version was designed to be glued to the base of the helping hands. The alternate version can also be glued to the base, but also includes a hole designed for M10 flat head screws. This way you can temporarily attach the helping hands using an M10 flat head screw of at least 30mm, an oversized washer and an M10 bolt. This design hasn't been tested as my helping hands is thoroughly epoxied to its base.

Update 2/3/19:
Made the base of the alternate version thicker to better accommodate M10 bolts.

Inspired by
https://www.reddit.com/r/functionalprint/comments/aea3u3/was_tired_of_the_helping_hands_tipping_over/