Delta Homing issue. Error:A hit floor
Hi, I am not sure if the issue I have is a firmware or host issue, so I apologise if I have this in the wrong category. I have successfully used Repetier before with a print head mounted on my CNC machine. That was very slow, so I have built a large Delta printer and am now having great difficulties in setting it up.
Using standard Arduino Mega and Ramps 1.4 with A4988 stepper drivers, Repetier Host v1.5.4. Firmware 0.92.3.
Issue is that when homing, all 3 servos operate as expected (except that the A/X servo runs faster than the other two. A/X homes first, then the B/Y and C/Z. Motors then drive sliders down the designated 5 mm, then home again to activate the end stops again, but only the A/X motor drives at normal speed. The other two motors go very slowly, about one step per second until the endstops are eventually triggered.
Only the max endstops are enabled.
I have tried many combinations but am not getting anywhere. I suspect I am doing something very stupid, but I don't know what it is.
Any advice greatly appreciated.
The log shows:
13:02:55.748 : N33 G28 *3
13:02:55.766 : Error:A hit floor
13:02:59.427 : Error:A hit floor
13:04:29.619 : X:0.00 Y:0.00 Z:400.000 E:0.0000
13:04:30.045 : Resend:52