My HF30 round column conversion has been a protracted one................I suppose that's why they call them "projects".
I bought a Stepperworld FET 4 kit with Sanyo Denki motors (50 oz) a few years ago and have, recently, took the conversion a lot more seriously.
The problem I that I've got no response from the Y axis output (tested with motors that work in the X,Z,W outputs).
A further problem is that a couple of the stepper motors will hum, or not, and make no attempt to spin when connected to a proven port.
Autopsy of these motors reveals ligh corrosion but they still will not respond when the corrosion is removed with a brass brush.
The shafts will turn freely after autopsy and freeing up.
Can anyone suggest a plan of remedy ??
Alternatively can someone advise how big I can go when replacing the motors as I have had no success in sourcing replacement Sanyo Denki 103-77-18 steppers and do not feel that they will be adequate for my purposes.
My power source (supplied with kit) is a SYN Electronics SYS2030-80-2 (Input 100-240VAC 47-63 HZ, Output +5V @ 1.5V, +24V @ 3.0A).