Geeetech

I have a G2S. I can print fine if I only use the first extruder. If I try a print that uses the second extruder, the carriages slowly move to the top until it crashes and starts skipping. When using Manual controls with repetier-host, if I switch to the second extruder and try to manually extrude, the same thing happens. If I switch to the second extruder and then emergency stop, followed by G28, and then try to extrude, I can extrude out of the second extruder and then print with it. But any time I switch between extruders, the carriages move to the top and crash.

I'm using the current Marlin firmware posted here on the forum. Does anyone know how to get the second extruder to behave?

This is a bug of the firmware, suggest you use one extruder until the latest firmware released.

Thanks Mark. I did some looking around in the firmware, and I've found the issue in the firmware provided here on the forums.

Marlin_main.cpp starting around line 3059. It looks like that when a tool change happens, any further moves happen in cartesian coordinates and it is not converted to delta coordinates.

In the most recent version of Marlin, this has been fixed.

https://github.com/MarlinFirmware/Marli ... .cpp#L3881

Do you think it would be as easy as using my Configuration.h with the new copy of Marlin?

Did you try it? I think you can give it a go. and ready to press the emergency button!

I too have this issue. Has the new firmware been released? Is there another fix?

Hi All,

I have a simular issue, when starting the second extruder the spider move's up nearly to the top.
After moving up it starts printing (the X and Y looks okey). Only the Z 0 point for the second extruder is incorrect.

Extruder 1 works fine.

I am cureus of i can use this Firmware(marlin) with my configuration.h
(or do i need to adjust some other files / parameters?)

Thx

Hi guys, it's the firmware problem, try to test the latest firmware here:

http://www.geeetech.com/forum/viewtopic ... 13&t=17064