Easythreed X1/X2/X3/X4 1kg Spool Holder

thingiverse

There are two versions of this spool holder, a larger one that will fit the X3 and X4 and a smaller one that should fit the X1 and X2. Regardless of which one you choose, you will need to rotate the model in your slicer to place it flat on its back. I only have an X3 so I have not printed or tested the smaller one, but it measures out the same size as drexore's original X1 spool holder. The holder will take 1kg filament spools without issue (that is how I have been using it almost exclusively), but the bar is small enough that it should be able to handle smaller spools just fine (I checked with one of my 250g spools and there was no issue). Due to the weight balance, you should not need to zip tie down the back, but there are two spots in the top (and corresponding notches in the bottom) of the base at the back for that purpose if you want to be certain it won't be moving around. I printed drexore's excellent [1kg spool holder](https://www.thingiverse.com/thing:4277668) for the X1 as soon as I bought my X3 (before it had been delivered actually) and happily it fits on the X3, but there is a lot of extra space and I was concerned the holder could get pulled over onto the gantry. I used Tinkercad to stretch out the base after measuring things. That printed fine and I used that first version for quite a while. The one downside with the design (and the original one as well) is that you really need to have the front zip tied to the frame at the front of the spool holder or it will fall off if you use a 1kg spool (at least mine did until I zip tied mine, but that could be down to poor tolerances on my printer I suppose) and because there are not notches on the bottom of the base for those zip ties, those zip ties are held against the bottom of the holder rather than frame itself until the holder tilts backwards. I had started version two as a mild re-design to add notches so that the zip ties would grip the printer frame and not the holder when I came across GloSense's [controller stand](https://www.thingiverse.com/thing:4499386). The way it grips the printer frame on one end is really fantastic. I wanted to add that feature to the front edge of my existing remix so that the holder couldn't tilt backwards. After some more work in Tinkercad, I got something I was happy with. The front zip tie spots were no longer needed so I removed them, but I wasn't sure whether the back ones would still be required, so I added those notches. The notches only have 45 degree overhangs, so no supports should be required. After printing this new version, I installed it and it has been rock solid, especially in combination with my [filament guide](https://www.thingiverse.com/thing:4576276). Neither the larger or smaller one will fit on the build plate of X1, X2, X3, or X4, so you will need a second, larger printer. If someone wants to remix this to break it up into pieces that can be printed on the X1/X2/X3/X4, I will happily link to it.