@briskspirit @dc42 @deckingman Thanks for helping me out !

Yes , but then each would be a independent extruder axis , I need them to function as one , I have the two extruders inline , they both push the same piece of filament (I need to have very high extrusion force) .

I need Drives 3 and 4 to function together as an E-axis , but with different steps per mm , because I have two different extruders.

I can probably do it with a g code parser , but this would not be ideal.

I want to drive one extruder axis from the integrated E0 and E1 drivers , but with different steps per mm for the two drivers, because I have different motors driving the same axis , inline extruders on the same piece of filament.

configuration with M92 and M584 does not seem to be able to do this.

How can I make this work, do you have any ideas/suggestions ?

Can I bind one axis to another axis so they move the same amount of units ?

@dc42 said in No communication after erase button pressed:

cept that you have tried multiple PCs. Have you measured the voltage on the +3.3V rail? Is any of the chips or the WiFi module on the Duet getting hot?

3.3 v rail seems good , the SAM chip is getting a little hot , around 40 degrees , the esp is ice cold.

Just another thing I noticed , if I press the erase or reset button , nothing happens , no flashing of any LED's

@dc42

Reliable shipping to USA and back would cost me quite a bit of money. Buying a new one would be a better bet for me.

I would really like to give the JTAG reflash a go.

What programmer do you use for flashing over JTAG ? and can you provide me with a wiring diagram ? Also , what binary should I flash ?

Can you assist me with a jtag reflash ?

@dc42

I am in South Africa , Pretoria

@dc42

So what are the next steps ?

@denke

Ok , so I just tried this , still no luck. I also tried running through usb isolator.

@dc42

Noted. I have been trying without the SD card anyway, so what is the next step ?