Z1 stepper overtemp error.
Hi. I've just started getting this error. I don't know why. I've checked the stepper drivers. I've checked the temp (motor and driver are cool) and I've checked all the connections. I've also swapped stepper drivers and it still ends up being Z1.
I only seem to get this when I run shaper_calibrate. If I print, everything is fine.
I'm pretty stumped. I know the error tells me exactly what it. It's over temp on stepper z1. But nothing is hot.
Any help would be appreciated.
Board is a manta m8p v1.1. Motors are the standard ldo ones from ratrig. Drivers are btt 2209s.
6 Replies
Do you have a fan blowing on your drivers? (controller fan in RatOS terms)
Yes. I have 2. 1 blowing on my xy and another one blowing on my z motors.
I can get that error just leaving the printer idle. If I switch z1 to z2 for example, I will still get the overheat z1 error. So it's not motor dependant. Doesn't matter if I replace a stepper driver or put a new one in. It still comes up with the z1 overheat. I might have to override that stepper plug and use another one.
So after more testing, it seems to be when I use input sharing in my ebb42 1.2. I can get the error to pop up 100% when I use input shaping. I made up a quick macro to home, z tilt 30 times and I never got the error. I started shaper_calibrate and after it does the first test, I get the z1 overheat error
After more testing and inspecting, I noticed that z1 motor was at a slight angle. Not sitting truly straight. I'm wondering if the vibration from input shaping was allowing the motor to somehow drop and touch the metal bracket under it? If the motor picked up vibration from direct contact to the frame, would it cause errors? I forgot to mention that I installed the Eva toolhead upgrade. So I had to rebelt and align my x axis so my vibrations could be different. Maybe I did something wrong there?
The driver overheating has nothing to do with any of that. If the stepper that's connected to it is enabled it'll run at 1.6A, regardless of movement. It's not the stepper getting warm, it's the driver.
Post your printer.cfg
And post a pic of your drivers + driver cooling setup.
It will be a while before I have access to my garage but I can connect to it and send my printer cfg, 2 sec
that is my printer cfg
Config looks good so my bet is poor cooling of the driver. Either remedy that, or lower the Z current (switch the 1.6A z configs to the 1.1A z configs)