Parking function while loading filament tries to go beyond Z upper limit
 
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Jack
 Jack
(@jack-5)
New Member
Parking function while loading filament tries to go beyond Z upper limit

When you start the Load filament procedure the first step is the parking function where it raises the Z axis up a bit: I've encountered the problem when the Z axis was raised enough such that while parking it tried to go beyond the upper limit and didn't try to stop but continued trying to raise the axis.

Is it a known software issue?
First day of using my new MINI+ and already found a bug, I'm amazing at founding them

Posted : 26/03/2021 7:14 pm
Walter Witt
(@walter-witt)
Active Member
RE: Parking function while loading filament tries to go beyond Z upper limit

My printer has always done this, and I'm really quite surprised it hasn't been fixed yet. The Stepper drivers clearly can tell when they've been stalled, yet the Z axis never uses this info to prevent it from running into the top. It hasn't caused any actual problems for me though, other then the unpleasant noise.

Posted : 28/03/2021 5:39 am
JoanTabb
(@joantabb)
Moderator
RE: Parking function while loading filament tries to go beyond Z upper limit

@walter-witt

the Z axis uses a screw thread rather than a belt, which is less responsive to Stall Guard

There are a lot of Parameters that you can use with M600....   
https://marlinfw.org/docs/gcode/M600.html
I believe you can stop it from rising on filament change using some of these parameters

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 28/03/2021 1:18 pm
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