eSun spool to MasterSpool adaptor (incomplete)

# I never finished this design, but Jaytee has one which works, use his:

* [**masterspool adaptor for empty eSun 1kg spools by JAYTEEAU**](https://www.thingiverse.com/thing:2828249)

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I love the idea of [RichRap's MasterSpool](https://www.thingiverse.com/thing:2769823) but I don't really want to print one when I already have all these empty eSun spools lying around. They have two bolts and come apart into two pieces easily.

Measuring and comparing, the eSun spool has a smaller ID