Can someone explain to me why my CNC machine always taking a dive when carving or drilling? I have a Stepcraft D840 ATC. Every time I carve or drill somewhere in the process the bit just take a dive and mess up my whole work piece. The machine is leveled runs smooth ATC works ok. The preview of the toolpath look good, but I just can't stop it from going scuba diving without water.[ATTACH=CONFIG]439227[/ATTACH]
Here is a video on my YouTube channel.
https://youtu.be/21WOAp7HfxI