GeeeTech 3D Printer 2.

A few days ago a new project come. My son "ordered" a pen plotter (he said we will build it together).
This definitely needs some 3D printed parts. So I decided to repair the Geeetech printer.

• I rebuilt the Raspberry PI, Ubuntu, Octoprint set using the newest versions.
• Replaced the Bulldog motor with a higher torque one.

• Replaced the TI driver for a new one. Just to be sure if it works correctly. Set the motor current to 1.2A (the max is 1.5A)

Finally It started to print. But...
I still hear the clicking noise from the extruder. It looks like it doesn't loose steps as the filament is coming out from the hotend as expected. I don't know what it is. I can't do anything about it right now.
So I've a working 3D printer. Or not?
Continue...