Saying your machine is missing steps is akin to saying your car is not running correctly. It could be a multitude of things. Hate to see ya rip apart 4K in 1 day of trouble-shooting. What are the specs on your motors? You say you installed a G540. Are you POSITIVE the motors are correctly wired and your 540 is compatible, correctly wired, and setup? I'm assuming a sufficient power supply was included in the mill purchase. A website with the machine specs might help a bit. Hoods pretty slick on the troubleshooting. Given enough time, he could probably have it making sandwiches for you at lunch.