Geeetech i3 pro c dual extrusion problem

[Marc71]

Hello,

Does someone have any idea why the following happens ? It seems to be printing the first layer correct then it moves left print some then left again. see picture

dual extruder.png (1.16 MiB) Viewed 13077 times

[cosmith]

Is the X belt slipping? Problem with the servo? Settings issue with the travel speed? That's a strange problem.

Can you attach the GCode file so I can try it?

--Colin

[Marc71]

looks like it is an issue with the X-axis (slips) it is not advancing correctly not sure if something wrong here DEFAULT_AXIS_STEPS_PER_UNIT {85.3333, 85.3333, 2560, 158.8308}. the belt seems ok not to tight

i included the configuration.h file maybe you can have a look and tell me what is wrong https://drive.google.com/drive/folders/ ... sp=sharing

[cosmith]

The configuration looks OK, except the 158 for the E axis seems high. That shouldn't effect the X axis though. Maybe the belt is too loose, or there is a problem with the stepper driver? There is a way to test the voltage, it's on the forum here somewhere. You can also swap out the stepper driver with one of the other ones and see if it makes a difference.

[Marc71]

What would you recommend as a setting ?

[cosmith]

You will need to calibrate it to get the correct value.

https://www.youtube.com/watch?v=YUPfBJz3I6Y

[Marc71]

Ok so i found the problem. It seems that the double extruder is a bit going toward the front ( fan). Whenever i lift toward the back it then works ok for a minute but then it start sjipping steps. Any recommendations ?

[cosmith]

Can you post a video?

[Marc71]

Sorry for the late response.

so now the printout sticks ok to the plate, starting to print ok then slowly shift to the left. please check the video and let me know what you think.

https://youtu.be/GSIhXKMd6oQ

[Marc71]

Driver module was defected I replaced and all ok for now. will do more testing.

Thank you all especially to Geeetech support with the idea to switch between modules.