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Time Estimate

Select a difficulty level for this entire task (including any prerequisite instructions). The difficulty ranking reflects the experience, physical dexterity, and risk involved.

Very easy

Does not require opening device.


Requires minimal disassembly and requires only basic tools like a Phillips or flat-head screwdriver.


Requires a fair amount of disassembly. This is a task that most people would not perform without instruction.


Requires significant disassembly and may require specialized tasks like soldering.

Very difficult

This task is considered quite challenging, may require specialized tasks like micro-soldering, and may risk damage to the device. If you can do this, people may call you MacGyver on occasion.

If your guide picks up where an existing guide leaves off, add the existing guide as a prerequisite to avoid having to write additional steps. Prerequisite guides will be displayed before this guide. Make sure that the prerequisite guides are in the correct order. You can change the prerequisite order by dragging the icons to the left of the guide's name.

  • 1 × Phillips Screwdriver, size P1
  • 6 × 290mm Ball Joint Arm
  • 6 × Ball Arms3 of the 6 should already be installed on the Injection Molded Carriages!
  • 3 × Hot End Platform SpacerThese are machined Aluminum
  • 6 × Tension Spring for IM Ball Joint ArmsInjection molded with a tiny ball on each end and a squiggly "spring" in the middle.
  • 3 × #6-32 x 1.75" Phillips Pan Head Screw
  • 3 × #6-32 Nylon Lock Nut
  • 6 × #4, 3/8" Sheet Metal ScrewThese should have been used to install the Ball Joint Arms.
  • 6 × #4 Flat WasherThese should have been used to install the Ball Joint Arms.
  • 1 × Ball Joint Platform
  • 1 × Hot End Adapter for the Ball Joint PlatformThis part is laser cut Melamine.
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