MK1-450

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Revision as of 20:14, 4 October 2016 by Davo (talk | contribs) (→‎Description)
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The MK1-450 is our high temperature print head, and works with 1.75mm filaments which print at temperatures between 250°C and 450°C.

MK1-450

This includes the following materials:

  • PC (PolyCarbnoate)
  • PEEK (PolyEther Ether Ketone)
  • Ultem

Description

  1. The MK1-450 is fed filament from the top, through low friction tubing (2mm ID, 4mm OD) seated into a 4mm pneumatic fitting.
  2. A cover plate maintains pressure, via a spring, against a rod with two bearings; these bearings keep the filament pressed against and centered on the gibbed (toothed) portion of the drive shaft of the stepping motor.
  3. Beneath this, the filament enters into a 2mm ID PTFE guide tube, which leads the filament to a stainless steel delivery tube (due to temperatures too high for the PTFE) and thence to the brass nozzle. The stainless steel heats up to some extent, allowing for pre-heating of the filament.
  4. At the nozzle, heat is transferred to the filament, whereupon it is forced out through the brass nozzle.

Loading the Head onto the Printer

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Loading material into the Head

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Default Parameters

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Adjustments

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Firmware

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Maintenance

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