DIY Helping Hands Base - 3/8"BSP thread

This is a remix of https://www.thingiverse.com/thing:2552420 by Movilujo. The original version has holes for 1/4" BSP thread (for screwing in the flexible collant hoses). However, my flexible hoses had 3/8" BSP threads so had to make some alterations to the original.

The threads have a bit of 'slop' in them to allow for shrinkage. I printed in PLA and they were a good fit.

Used openscad libraries for creating thread (see original) and did a 'difference' with the imported STL for each ho