UPDATE 09/06/2019 - NEW v2.0 DESIGN
I made an new, updated version of this! Get the new design here:
I really liked the spoolholder concept made by itech3dp (https://www.thingiverse.com/thing:2790290) unfortunately it didn't quite suit my needs:
-Must be able to hold ClasOhlson Universal 1kg filament spools (Center opening 52.8mm) + The original Flashforge Finder 600gr spools (Center opening 20mm).
-Must be easy printable on the Flashforge Finder, and easy to assemble/glue.
-Must have sufficient clearence, so the raiser-legs dont rub against the extruder belt
-Raiser legs must have a snug and exact fit where it clips on the Finder, so that the structure stays in place with no "rocking back and forth".
I therefore ended up completly drawing this spoolholder from scratch in Tinkercad, trough lots of prototyping, trial and error i finally got it right. Two drums are included, one for each size spool. Easy to change spool, just lift the drum out of the spoolholder. The smallest drum has a lowered spot on the middle, so that the spool is kept at the center of the axle.
If you make this, I would appriciate it if you upload a picture of it! Enjoy! =)
Depends on the part, I found that it really isn't need for alot infill, typically around 8-10%. Its still more than strong enough to hold 1kg.
Print the Raiser legs lying flat on its back. You must print it diagonally on the FlashForge Finder bed due to its length. Main unit is printed standing up.
After printing, use some superglue, or plastic glue and join the peaces togheter, lay it flat on its side to get it correctly alligned. The openings in the structure makes it easy to put a clamp on it to put pressure on the parts while the glue sets.