I purchased the kossel kit a while back and am stumped! Every thing is fine until I get to step 15 in the configuration manual. Using the command G1 Yxx to find the print radius the print head moves to the back not to the front unless I input a negative number. When I try the auto level command or a test print the print head goes all over and gets tangled up. I tripple checked all my connectionsby seasidenj - Reprappers