Time to put the machine to the test. I tried to engrave our hamster's name on pine wood with limited success.

1. I'm getting a lot of error when using the knock off Arduino Uno. It fails randomly and I wasn't able to fully engrave the text. it seems that some instructions are not sent correctly or completely to the device. I had the same result on a dry run (no CNC shield attached)

2.When using an old original Arduino, it works without error on a dry run however when connecting everything the Y axis doesn't move physically despite having the same parameter in the firmware. Bummer. Not sure if I damaged this board in a previous project so just to be sure I will try with a brand new one again. 

If all fails, I will try to reduce the baud rate or check if I need to uninstall the driver I had to install for the knock off Arduino.

On the few letters I manage to engrave, it does the job however the Z axis has a lot of flex and that shows so I will replace that one with something more sturdy (similar to the other axis)