A remix of the unofficial official Prusa i3 MK3S+ spool holder that is 3D printable and can be clipped on 2040 aluminum profiles.
All original design credits for this part go to Prusa Research and to codysechelski for sharing the reverse engineered source CAD.
spool-holder-base
is based on the source design and is split into two parts and modified for printing.spool-holder-handles
are redesigned from scratch and simplified for easier printing.spool-holder-base
with the original injection molded handles (tested).filament-guide
is as released by Prusa Research (visit here for STL) I printed the final in PETG, but also tested ABS and it works fine as well. The following are done within PrusaSlicer but similar results can be obtained from other slicers.
All parts
:
spool-holder-handle
:
Explanation: The additional gcode modifications for the spool-holder-handle are to help increase the layer bonding of the small lock features.
Just make sure there is no excess plastic on the surfaces of the interfacing features.
Last remark:
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Change log:
[18-04-2023] First upload.
[19-04-2023] Edit - spool-holder-handle
: Added missing contact interface tolerance between handle and base. The tolerance at the other end of the contact (locking mechanism) should already be enough. But this will make insertion even easier.
[19-04-2023] Compatibility: Tested the spool-holder-base
with the original injection molded handles and they can work well, in case anyone is interested. They do not lock as in the original base (they can rotate if enough torque is applied), but no spool will do that alone. Therefore, they can be considered compatible.
[20-04-2023] Edit - filament-guide-adapter
: Noticed a pull difficulty when using full 1kg spools. Updated such that the PTFE tube extends to the end of the adapter. It is short of a push-fit so it requires a bit force to push the PTFE all the way into the adapter. That seems to ease the filament feeding.
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The author remixed this model.