Spool Holder for CraftBot

**Update 26.01.15**

I added axis for spools with inner holes of 19mm.
If you want additional axis, leave the comment.

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**Update filament guide**

I changed the filament guide part and now filament have enough space to move around. Much better as previous design. Part is with support.

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Top mount spool holder for CraftBot 3D printer.
You can mount holder on both sides of your CraftBot printer. No need to use additional screws.
It is possible t