3040 machine - Which axis has the flexible couplings?

[komatias]

Hi, All
Simple question, just received a CNC 3040 (3 Axis) from Ebay - Look straight forward to assemble expect I have a problem with stepper motors:
2 have a flexible coupling and 1 has a fixed coupling. Which axis has the fixed coupling?

Regards
Dave

The z gets the fixed coupling

[DaveMorris]

Guessed that might be the one, but thanks very much for the confirmation (I did not want to break the machine) - wish they put it in the manual - it would help.

Do you know of a better (and more detailed) manual for this type of machine (it is described as a CNC 3040T Router Engraver/Engraving Drilling and Milling Machine).

Dave

[komatias]

The manual is the same for all of them as they probably just copy each other. As lon as you have the motor speeds and steps per unit right the machine will work. The difficult thing would then be to learn how to use Mach3 or EMC and then how to make gcode.

In the meantime try not to over stress the spindle as it tends to pop a diode on the speed control board and of course the stepper control board is not the most reliable.