Prusa MK4S Pen plotter – Magnetic Mount Adapter
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A small adapter that lets the MK4 pen plotter attachment fit securely on the Prusa MK4S metal front fan holder using mag
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Model information
- Source
- Printables
- Category
- Other Ideas
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
This is a small adapter designed to help mount the popular pen plotter attachments for the Prusa MK4 on the Prusa MK4S, which has a slightly different metal front fan holder.
The adapter sits against the metal fan holder and uses magnets for alignment and stability, helping the pen holder stay positioned more precisely during plotting.
To assemble it, I attached the original printed plotter parts to this adapter using a 3D printing pen, but you could also glue them or remix the parts differently depending on your setup.
Magnet setup
I recommend filling the whole flat area with magnets if possible. This gives the mount a stronger hold and keeps the attachment stable while the printer moves.
The magnet holes are intentionally not included in the STL, because magnet sizes vary and it’s very easy to add them yourself in:
Fusion 360
your slicer
or another CAD tool
This way you can adapt the design to whatever magnets you have available.
Notes
Designed for Prusa MK4S
Works together with the MK4 pen plotter attachment found here on Printables
Magnets improve positioning and quick removal