3D Printer Filament Spool Holder for 38mm

This is a simple spool holder for 3D Printer filament.

It is reference from Spool Holder by Trigubovich,

http://www.thingiverse.com/thing:1098377

redesign for 38mm filament , and use M8 2020 Holder on frame

Mount for 2020 Extrusion I-Type 5 by dintid

http://www.thingiverse.com/thing:1000335

I also design a nut for M8 nut for earier operation.

Bom:

print part:
spool_holder x 2
spool_holder_nuts x 1
spool_holder_nuts_mask x 1 ( just for beauty , not necessary)
M8 base