1 (edited by 4x4_samurai 2015-03-19 21:21:26)

Topic: Is the circuit board on the extruder necessary?

Hi, I am trying to find out, do I need the little circuit board on the extruder, when I am going to Repitier 0.92 and a bowden e3d extruder?  I just got my second 1.0A and am looking to completely modifiy it.  So I wanted to be able to resell the complete extruder/carrage assembly to help fund my upgrades.

Thanks.

2

Re: Is the circuit board on the extruder necessary?

The circuit board connects the thermistor and the fan to main harness. It also has a sensor to detect when the filament runs out and stops the printer. So if you can design and modify around those three factors then no you don't need for Repetier .92. It is simply a pass through for the fan and thermistor. You could wire them directly to the harness above the extruder. Just have to trace the wires from the main controller to figure out which which is which.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3

Re: Is the circuit board on the extruder necessary?

That is exactly what I was looking for.  I don't care about the filament sensor as long as Repitier dose not mind,  I just need my fan and thermistor and was curious if that circuit board just passed through or if it modified the signal.  I will start probing the lines tonight.

4

Re: Is the circuit board on the extruder necessary?

That's not true about the thermistor, at least. The board has some small resistor which basically requires you to use a custom thermistor table for the DaVinciin the firmware. Perhaps removing it will actually make things easier, i.e. you may be able to really use table #8 in Repetier and get accurate temperature readings. With the circuit board connected you should keep using table #5 instead.

5

Re: Is the circuit board on the extruder necessary?

oscahie wrote:

That's not true about the thermistor, at least. The board has some small resistor which basically requires you to use a custom thermistor table for the DaVinciin the firmware. Perhaps removing it will actually make things easier, i.e. you may be able to really use table #8 in Repetier and get accurate temperature readings. With the circuit board connected you should keep using table #5 instead.


if he is changing hot ends however then his hotend will have a normal thermistor in which case the PCB would then make it wrong. The resistor compensates because XYZ is using a non standard thermistor.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

6

Re: Is the circuit board on the extruder necessary?

4x4_samurai wrote:

Hi, I am trying to find out, do I need the little circuit board on the extruder, when I am going to Repitier 0.92 and a bowden e3d extruder?  I just got my second 1.0A and am looking to completely modifiy it.  So I wanted to be able to resell the complete extruder/carrage assembly to help fund my upgrades.

Thanks.

I got rid of the pc board awhile back.

Here is the wiring code.

PC Board wires

Yellow = Fan B+
Green =  Fan B-

Orange / Black = Thermistor (no polarity)

The other wires are for the filament sensor and did not use.

7 (edited by 4x4_samurai 2015-03-21 23:03:49)

Re: Is the circuit board on the extruder necessary?

carl_m1968 wrote:

if he is changing hot ends however then his hotend will have a normal thermistor in which case the PCB would then make it wrong. The resistor compensates because XYZ is using a non standard thermistor.

Thank you for that. I was under the impression it was the same 100k thermistor. I am changing the hot ends on multiple Da vincis.  The problem is the 1.0a and the 2.0 are being flashed with repitier and the 1.0AIO is left with the stock firmware to keep the scanner.  I will save an old thermistor for the 1.0AIO E3D conversion.

Also I found 1 pin is connected to the extruder body.  I think that is used for the auto level feature.  The AIO is a College printer so I can not eliminate features, no matter how lame they are.

8

Re: Is the circuit board on the extruder necessary?

carl_m1968 wrote:

if he is changing hot ends however then his hotend will have a normal thermistor in which case the PCB would then make it wrong. The resistor compensates because XYZ is using a non standard thermistor.

The stock thermistor is just a standard 100k one. That's why you can use the E3D thermistor with Repetier 0.92 without changing the default thermistor table (#5).

9

Re: Is the circuit board on the extruder necessary?

leenanj wrote:
4x4_samurai wrote:

Hi, I am trying to find out, do I need the little circuit board on the extruder, when I am going to Repitier 0.92 and a bowden e3d extruder?  I just got my second 1.0A and am looking to completely modifiy it.  So I wanted to be able to resell the complete extruder/carrage assembly to help fund my upgrades.

Thanks.

I got rid of the pc board awhile back.

Here is the wiring code.

PC Board wires

Yellow = Fan B+
Green =  Fan B-

Orange / Black = Thermistor (no polarity)

The other wires are for the filament sensor and did not use.

Has anyone else tried this?

I have a printer, I just changed over to repieter and an e3d v6.  I wired it all up well, the head gets hot but the fan and thermistor are not working. I'm thinking offing the little circuit board may help, if not it could at least simplify things. Any idea would be much appricated.

Check out my YouTube channel: https://www.youtube.com/user/icanthinkofanid

10 (edited by leenanj 2015-04-03 15:52:19)

Re: Is the circuit board on the extruder necessary?

Flyboy55 wrote:
leenanj wrote:
4x4_samurai wrote:

Hi, I am trying to find out, do I need the little circuit board on the extruder, when I am going to Repitier 0.92 and a bowden e3d extruder?  I just got my second 1.0A and am looking to completely modifiy it.  So I wanted to be able to resell the complete extruder/carrage assembly to help fund my upgrades.

Thanks.

I got rid of the pc board awhile back.

Here is the wiring code.

PC Board wires

Yellow = Fan B+
Green =  Fan B-

Orange / Black = Thermistor (no polarity)

The other wires are for the filament sensor and did not use.

Has anyone else tried this?

I have a printer, I just changed over to repieter and an e3d v6.  I wired it all up well, the head gets hot but the fan and thermistor are not working. I'm thinking offing the little circuit board may help, if not it could at least simplify things. Any idea would be much appricated.

Not exactly sure what your asking here.

I eliminated the pc board couple of months ago.

And on the 1.0A there is no thermistor resister, can't speak for the older models.

Check your wiring if its not working without the pc board.

PS. This wiring code is for the 1.0A, older could be different.

11

Re: Is the circuit board on the extruder necessary?

I am working with an older model 1.0.

I guess what I'm really asking is if the fan and thermoister are not working would this be the soultion? Or is there another problem my noob butt is missing. I was thinking possible defective extruder circuit board.

Check out my YouTube channel: https://www.youtube.com/user/icanthinkofanid

12

Re: Is the circuit board on the extruder necessary?

leenanj wrote:

Not exactly sure what your asking here.

I eliminated the pc board couple of months ago.

And on the 1.0A there is no thermistor resister, can't speak for the older models.

Check your wiring if its not working without the pc board.

PS. This wiring code is for the 1.0A, older could be different.

Hi leenanj,

I'm also trying to get rid of the PCB on my 1.0 and your color mapping is certainly not right for that model. I've already figured out the wires for the fan, but not for the thermistor. One of its leads has connectivity to 3 of the pins in the large connector, with different resistance values, so I'm not sure which is the right one... any ideas? I don't seem to be able to trace it in the board either... I'm just not an expert in this smile

13

Re: Is the circuit board on the extruder necessary?

oscahie wrote:
leenanj wrote:

Not exactly sure what your asking here.

I eliminated the pc board couple of months ago.

And on the 1.0A there is no thermistor resister, can't speak for the older models.

Check your wiring if its not working without the pc board.

PS. This wiring code is for the 1.0A, older could be different.

Hi leenanj,

I'm also trying to get rid of the PCB on my 1.0 and your color mapping is certainly not right for that model. I've already figured out the wires for the fan, but not for the thermistor. One of its leads has connectivity to 3 of the pins in the large connector, with different resistance values, so I'm not sure which is the right one... any ideas? I don't seem to be able to trace it in the board either... I'm just not an expert in this smile

I have the 1.0A so can't help you much.
If there is a resister then the stock thermistor must be different than the standard 100k and would need to be changed.

Most guys here have the 1.0 so maybe they can chime in with the correct colors.

Since you have the fan wires maybe eliminate the three wires going to the filament sensor.

14 (edited by Mecha_Pants 2015-04-03 21:05:25)

Re: Is the circuit board on the extruder necessary?

This may just be my experience with replacing my extruder thermistor, but in the older stock DaVinci 1.0's thermistor turned out to be a 2mm 200k glass encapsulated thermistor, the 100k thermistor I installed first did not read correctly as a stock part replacement.

15 (edited by oscahie 2015-04-04 10:48:54)

Re: Is the circuit board on the extruder necessary?

So here is the definitive mapping for the da vinci 1.0:

fan (+): green
fan (-): blue
thermistor (no polarity): black and yellow

Strangely, there does not seem to be a resistor for the thermistor on my 1.0 either, since both the black and the yellow pins on the PCB have zero resistance to the thermistor leads. It was my understanding that there was a resistor on all old models... I guess not!

edit: ah, I understand now. The resistor I had read about is actually on the main control board, not in this little PCB. That resistor is the one that messes up with the standard thermistor tables for a 100k (#8 for the E3D) and so requires a custom table (#5) instead.

16

Re: Is the circuit board on the extruder necessary?

oscahie wrote:

So here is the definitive mapping for the da vinci 1.0:

fan (+): green
fan (-): blue
thermistor (no polarity): black and yellow

Strangely, there does not seem to be a resistor for the thermistor on my 1.0 either, since both the black and the yellow pins on the PCB have zero resistance to the thermistor leads. It was my understanding that there was a resistor on all old models... I guess not!

edit: ah, I understand now. The resistor I had read about is actually on the main control board, not in this little PCB. That resistor is the one that messes up with the standard thermistor tables for a 100k (#8 for the E3D) and so requires a custom table (#5) instead.

hello

Are you sure that this is the thermistor (no polarity): black and yellow on this pin ?

thx help

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17 (edited by carl_m1968 2016-02-21 16:58:03)

Re: Is the circuit board on the extruder necessary?

efes wrote:
oscahie wrote:

So here is the definitive mapping for the da vinci 1.0:

fan (+): green
fan (-): blue
thermistor (no polarity): black and yellow

Strangely, there does not seem to be a resistor for the thermistor on my 1.0 either, since both the black and the yellow pins on the PCB have zero resistance to the thermistor leads. It was my understanding that there was a resistor on all old models... I guess not!

edit: ah, I understand now. The resistor I had read about is actually on the main control board, not in this little PCB. That resistor is the one that messes up with the standard thermistor tables for a 100k (#8 for the E3D) and so requires a custom table (#5) instead.

hello

Are you sure that this is the thermistor (no polarity): black and yellow on this pin ?

thx help

Measure between them. You should should get close to 100K at room temp. If not then wrong wires.. But if
I remember correctly that sounds right..

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

18 (edited by scobo 2017-01-06 20:02:49)

Re: Is the circuit board on the extruder necessary?

efes wrote:
oscahie wrote:

So here is the definitive mapping for the da vinci 1.0:

fan (+): green
fan (-): blue
thermistor (no polarity): black and yellow

Strangely, there does not seem to be a resistor for the thermistor on my 1.0 either, since both the black and the yellow pins on the PCB have zero resistance to the thermistor leads. It was my understanding that there was a resistor on all old models... I guess not!

edit: ah, I understand now. The resistor I had read about is actually on the main control board, not in this little PCB. That resistor is the one that messes up with the standard thermistor tables for a 100k (#8 for the E3D) and so requires a custom table (#5) instead.

hello

Are you sure that this is the thermistor (no polarity): black and yellow on this pin ?

thx help

Just replied to your other post but yes, it's black and yellow for the thermistor.
I removed the pcb a while ago and wired my thermistor directly to black and yellow.

Davinci 1.0 with repetier firmware & E3D V6 Lite
Anycubic Photon DLP printer, Einscan-S 3D scanner
Simplify3d, 123D Design, Meshmixer
http://www.thingiverse.com/scobo/designs

19

Re: Is the circuit board on the extruder necessary?

I Have an 1.0 and just put in the v6 and wired it all up. I have the new thermistor cartridge that comes with the v6, from what I gather, all i need to do is wire it directly to the yellow and black wires on the pcb of the extruder assembly? As of right now, the readings are way off using the existing connection.

20 (edited by carl_m1968 2017-01-06 21:53:42)

Re: Is the circuit board on the extruder necessary?

The stock firmware will not work correctly with any thermistor but a stock one. Likewise the stock thermistor is an oddball and there is no table that works exactly in Marlin or Repetier firmware.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

21

Re: Is the circuit board on the extruder necessary?

hmm okay well how the heck can I attach the stock one to the new e3dv6 heat block, this one I have has the cartridge. also i am on repetier .92

22

Re: Is the circuit board on the extruder necessary?

If you have Repetier firmware and you are using the normal 100K thermistor that comes with the E#D the you can just wire it straight to the Mainboard thermistor input or the Mainboard side of the small extruder board. The small board has a resistor on it that causes normal Thermistors to read wrong if you connect them to the side the stock Thermistor was connected to. So you must bypass the small board.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

23

Re: Is the circuit board on the extruder necessary?

Ok thank you! that's what i thought.

24

Re: Is the circuit board on the extruder necessary?

This was very interesting and useful information.

However, terms like "resister" and "thermoister" make it very funny, also.

25

Re: Is the circuit board on the extruder necessary?

Hi Guys. I removed the extruder board, added plugs fit the thermistor and fan and tucked the other wired away*after insulating them. everything seemed perfect, I was testing the extruder temp change by holding the extruder. I can't remember what the normal default temp readings are on the display with nothing plugged in, II think 20c. A problem arose, at what point I'm not sure but now my display constantly reads 158c on the bed and 106c respectively when cold. what also seems weird is that when I preheat my extruder, my bed temp goes up. Any ideas?. I tried re - flashing my printer to no avail, different display setup but same problem.