Setting up ethercat for linuxcnc on a raspberry pi 4b for my small lathe. Forumpost 1: https://forum.linuxcnc.org/10-advanced-configuration/42048-notes-from-installation-of-ethercat-on-raspberry-pi-4 Forumpost 2: https://forum.linuxcnc.org/10-advanced-configuration/42048-notes-from-installation-of-ethercat-on-raspberry-pi-4#206936