Y stepper has no current till print starts.

Jannie

I've been using Repetier since 2016 on a homebuilt machine, running very well, using Unipolar steppers on my own driver boards.
Recently I decided to go with Bipolar steppers using Polulu A2988 directly on Ramps 1.4.
The machine runs well, prints very well, but I have no current going to the Y stepper when it is NOT in print. There is no "holding" current at switch-on, or whilst waiting for heaters to warm up, and at finish of the print. (Printing is no problem.)
Any ideas anybody?

Jan

Repetier

Do the other motors keep current? Otherwise the timeout to disable motor might just be set to a short period.

Jannie

Thanks for the reply.
Just to make sure, I checked the other motors as well, and it is indeed the SAME for X axis and the extruder as well. NONE of them gets current until the print starts. (X,Y and Extruder)
I then checked stepper timeout period, which is set to 360 seconds, as follows.

#define STEPPER_INACTIVE_TIME 360L

#define MAX_INACTIVE_TIME 0L

(Z is still on the original Unipolar motors and not part of the change).
Jan

Repetier

Before any moves all motors are power less that would be ok. Question is how it is after a move like homing.

Also check in eeprom values. There you override the config value.

Jannie

Repetier said:

Before any moves all motors are power less that would be ok. Question is how it is after a move like homing.

Also check in eeprom values. There you override the config value.

Thanks. Now that I know it is OK for motors to be "power less" before moves I am OK. (Did know if I had a problem or not.) The machine is fine, prints well and is well calibrated.
(I did go in eeprom and re-set value to 0, just to be sure)

In the end all is well and I thank you for your time. Much appreciated.

Jan