And… it prints!

After a very long wait, my SCARA RepRAP is finally printing. I printed 4 calibration cubes and a piece of a tricycle wheel (in the wrong colour…)

In the video you can see the new hall-affect end stops, my “Mostly wooden Gregs’ Wades” extruder, the mounted hotbed all working together to print a tricycle wheel.

What you cannot see is the new additions to the firmware that sports:

  1. Quick calibration routines (in Mcodes)  Calibration of the arms can be done in as little as 2min without having to calculate the relative arm positions for the arms – for any size machine…
  2. Axis scaling: it is not possible to easily calibrate the x and y print sizes by steps alone, and therefore the machine has internal and Mcode adjustable scaling factors to ensure your prints come out the right size

You can check my Youtube channel (quentinharley) out for some footage…

Happy times!

I have a couple of upgrades to the frame coming, focusing on the z-axis stability without having to add another motor.  There might also be an upgrade to the arm configuration in the pipeline soon.  I also thought about a practical way to install more than one hotend on the arm – bringing multi-head printing to SCARA.

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