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Rene Janeke
Apr 13, 2019

List of Issues with proforge 2s dual extruder

in Assembly

Heated bed reads as -15 on the touch screen, there is a red led light (D2) shining on the mosfet and on the electronic board. Chaning the temperature on the touch screen does nothing. Rechecked all the wiring could not find anything wrong with the connections.


The servo that switches between the hotends is not working, the initial press of button 3 worked and then the switch to hotend 2 by pressing button 2 worked, but now it is not working, pressing button 1 and 3 does nothing and button 2 makes a buzzing noise.


Hotend 2 does not heat up, when trying to change the temperature of hotend 2 nothing on the touch screen works anymore, motion checks no longer work etc. I have to switch the printer off and then on again for anything else to work again.


The extruder for hotend 1 is also not working, nothing happens when trying to extrude. The green light of the filament sensor is working but the extruder motor does not work.


I have rechecked all the wiring an can't find anything wrong.




19 comments
0
deró
Apr 13, 2019

My servo worked, then stopped. I assume it has failed, not board. Extruder work fine.

2 issues, first, Z homing is not repeatable. Good clearance and then gouges bed hard Next print.

2nd issue is for bed level map, sensor too close to X0 Y0, so bed hits end stop

0
Molotov
Apr 13, 2019

@Rene Janeke have you got the temp probes for the bed (TB) and 2nd head thermistor (TH2) around the right way? Sounds like what I've got going on with my 2nd head thermistor but my bed temp is correct (I've posted in the dual extruder board).

0
Rene Janeke
Apr 13, 2019

@Molotov Thank you for the response, I rechecked the temp probes, the wiring looks correct.

The bed reads as -15 so I don't think it gets a reading at all, but don't think its a wiring problem.


The 2nd head does read room temp so I think the thermistor reading is working, but when you try to change the temperature of the head on the touch screen it does nothing and everything else stops working. Movement of axis no longer work, setting the fans no longer work etc.

0
fg
Apr 13, 2019

I also had a negative temperature reading but after accidentally ripping of the temp sensor and putting it back everything is working again... 😉

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Rene Janeke
Apr 13, 2019  ·  Edited: Apr 13, 2019

@fg Did you rip it off the heated bed? Just tested the electronic board by switching the second extruder temp sensor into the TB slot and it does read, so the it might be a problem with my heated bed. The white cable does seem to be loose on the bed, not sure how to go about fixing it.

0
fg
Apr 13, 2019

I ripped it of where the tape is (center of the heated bed). I've simply put it back in place with the tape provided. Nothing special.

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Daryl Smith
Apr 16, 2019

there was tape provided?

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Rene Janeke
Apr 13, 2019

I took it off and then placed it back on, unfortunately there was no change, still reading -15.

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Molotov
Apr 13, 2019  · &nb