Summary

So... After M3D's model almost literally broke my printer, I have redesigned it.

The file named _try2 will probably print a little better. I did a little filing on the first try piece - which is 1mm larger in diameter (39mm for the old one, 38mm for the new Try2 one). The hook design was a little painful, too, to be honest - I'm going to redesign that at a later date.

This is based off of the model from their website for an external filament spool holder. M3D's design was a 3-prong piece that didn't actually fit inside the hook it made two pieces... for some reason... Also, the prongs would consistently break. I printed the 3-prong piece I redesigned at least 5 times before I got one to work after I used a butane heat gun. That's ridiculous.

So, I redesigned the spool piece. Instead of using three easily breakable prongs, it uses a more simplified piece to hold the spool without retaining it as securely. Gravity will hold it on. After two sucessful prints, it has worked perfectly so far.

The other problem we will run into with this is that with M3D's filament spool, it does not hang low enough to actually hold the spool below where it droops into the moving parts.

As you will see in one of my pictures, I have taped a large note card over the printer. Without this, it is very likely that my design - while it won't break as soon as you put the spool on - will still allow the spool to sink into the moving parts on the side of your printer.

The hook for this design is located here:

https://www.dropbox.com/sh/fv7oz6pse0tb1wr/AAAHlxfPfIH-Z10silFblYFba/3D%20Models%20from%20M3D/Spool%20Holder%20Hook.STL?dl=0

Pictures of my print will be posted as soon as I can.