MK4S nextruder idler lever lock tighter mod
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For MK4S nextruder idler lever, it locks better and tighter, not easily get loose
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Updated at source:
Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- GNU General Public License v2.0
What is this:
For MK4S / MMU3 nextruder idler lever.
- lever A/B mod: I think the original nextruder idler lever is a little bit too lose when locked. in some cases it may even falsely trigger the magnet sensor since it's too loose. imagine when the print head / nextruder moving very quickly.
with this mod, the idler lever is 1mm higher, so the lock is holding much better.
note it doesn't change anything else, no distance changed, even the sensor is not needed to redo calibration in theory
2. idler_nut_fs mod, simple mod to use magnet 3X2mm size ( thickness 2mm)
because I don't have extra 3X1mm magnet, but have a lot 3X2mm.
need redo calibration.
Files:
we don't have MMU3 source CAD files, they are not released.
so this mod is created using STL source files only.
Fusion360 project files are provided.
Print setting
- Should use ABS or similar material
- To ensure part is strong and solid enough:
- 90% to 100% infill .
- 6 or more perimeters