Parametric delta minimal spool holder using rod

Using same principle as [Parametric delta bar clamps](https://www.thingiverse.com/thing:3003149) I designed a minimal mount for spool on a delta printer, you just need the 3D printed part and a piece of threaded rod

You can enhance using parts from [Parametric universal spool holder](https://www.thingiverse.com/thing:767317)

The uploaded file is for 8mm or 5/16 threaded rod