Geeetech

Hi,Pat
Why not download the firmware for your own printer(proB)...

I'm afraid you can't achieve it...
The board on Prob only can support two extruders.
Does the kit include the motherboard?

Modify the Z offset parameter will fix it,you can refer to this:
viewtopic.php?f=27&t=18371&start=20

Great.

Uninstall the driver on your computer then install the following driver to take a look:
http://www.ftdichip.com/Drivers/CDM/CDM21224_Setup.zip
And try re-flashing the firmware for your printer.

Glad to hear that.

This doesn't result in a proper alignment. It also have an influence on the rest of the frame. The sides don't have a 90 degree angle anymore and the rods aren't able to align properly. My conclusion is that the frame just isn't good. Regards, Tom Hi,Tom If so,i guess that must be the mainframe has...

I notice in the video here:https://www.youtube.com/watch?v=truJB5TqmoA the probe's LED turns off and the probe pin extends when the nozzle is lowering to the bed. Mine does not. What will make the pin extend and the LED go off? The LED won't turn off and Extend until you send the command "M280 P0 S...

Sounds weird...
As you said,you can flash the firmware via USB which shows the connection between computer and board is OK.
So the COM port and Baud Rate are all right,the connection must be OK.

Maybe one of the two cables is not connecting well,as i know,one is for "clicking" and the other is for "scrolling".