Parametric Spool Thread Tidy

Based on my other model https://makerworld.com/en/models/1619863-embroidery-thread-saver-new-brothread#profileId-1709781 I decided to create a fully parametric version from scratch to make thread tidies for other spools. Get a pair of calipers (or a ruler) and as accurately as possible measure the following: SpoolOuterDiameter - The diameter of the spool itself, this should be the biggest measurement SpoolInnerInternalDiameter - The diameter of the hole in the spool (inside) SpoolInnerExternalDiameter - For spools with a tube like protrusion this is the outside diameter of the tube (For spools that are completely flat just add a little bit to the inner diameter to support the lip) HoleDiameter - The size of the final hole in th thread save so you can still get this on a machine (should be at least 1mm smaller than SpoolInnerInternalDiameter) HoleDepth - How deep inside the spool do you want to go - 6mm is a good value here Gap - Set this to 0 if you want the thread tidy to be flush to