The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Prusa MK4 + MMU3 Test Piece

    The slanted layers mean this simple block requires something like 180 filament changes while verifying the Prusa MK4 + MMU3 / filament buffer setup:

    Prusa MK4 MMU test piece - finished
    Prusa MK4 MMU test piece – finished

    Because of all the color changes, the Wipe Tower holding the extruder waste is much much larger than the block:

    Prusa MK4 MMU test piece - on platform
    Prusa MK4 MMU test piece – on platform

    The first attempt taught me, once again, the value of cleanliness:

    Prusa MK4 MMU test piece - birds nest as found
    Prusa MK4 MMU test piece – birds nest as found

    The extruder head required tedious cleaning:

    Prusa MK4 MMU test piece - extruder tangle
    Prusa MK4 MMU test piece – extruder tangle

    Scrubbing the steel plate with dish detergent and wiping it with isopropyl alcohol improved the outcome, but one corner of the Wipe Tower still lifted:

    Prusa MK4 MMU test piece - wipe tower corner lifting
    Prusa MK4 MMU test piece – wipe tower corner lifting

    All’s well that ends well, but perhaps glue stick / hair spray under future Wipe Towers will ensure they don’t wander off.