1

I'm refurbishing an Ender 3 that was built from a kit, and then upgraded several times, so that parts like the mainboard and extruder no longer match the model of the frame and can't be used to identify certain model-specific parts.

The printer will need a new X-axis belt, but short of taking it off and cutting it so that it can be measured, I'm not sure how to find the correct belt length.

Is there any way to identify the frame and thus the original model? For example, measuring a component like the gantry arm.

agarza
  • 1,734
  • 2
  • 16
  • 33
Aaargh Zombies
  • 2,320
  • 2
  • 20
  • 43

1 Answers1

3

If you can accurately measure the distance between the two pulley wheels for the X belt, and their diameter, you can calculate the correct length directly.

The formula will be twice the axle separation, plus the circumference of one wheel (correctly this will be at the toothed drive surface, not the edge guide).

There is enough adjustment available that being a couple millimeters off won't cause problems, and the belts are manufactured only in whole multiples of the tooth pitch in any case, so you can round to the nearest standard length.

Zeiss Ikon
  • 1,870
  • 2
  • 11
  • 31