1 Topic by Mcstarcoin (edited by Mcstarcoin 2018-06-02 13:04:34)

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Topic: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

I decided to give my Davinci 1.0a an upgrade by swapping to an E3d V6 hotend, including the thermistor that comes with it (I flashed my printer to Repetier .92.10M if that helps). After plugging everything back in it kept saying "fatal:Heater/sensor failure Printer stopped and heaters disabled due to this error. Fix error and restart with M999." I made sure that the tempsensor value was set to 8, and even plugged in the original thermistor to see if I had just received a dud, but no dice. I thought that it might just need a reboot so I cycled the power, but when I did I noticed that the thermistor would read -20, and then quickly go back to 'def'. I don't know what to try next, but if you have any insight on the matter, feel free to share!

2 Reply by Tin Falcon

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

https://e3d-online.dozuki.com/Guide/V6+ … uration/24

Is this the procedure you followed ??

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

3 Reply by Mcstarcoin

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

No, but that looks like it could help. I originally followed this tutorial: [Tutorial: How To Flash Your Da Vinci 3d Printer With Repetier Host | 3d Printer Hacks][https://www.youtube.com/watch?v=rjuCvlnpB7M] Then, after about a year of solid printing on that I followed this guide to install an E3d V6 on my Davinci: [XYZ Davinci 1.0A 3D Printer now with an E3D v6 hot end (Phase 1)][https://www.youtube.com/watch?v=vX9r4Nc … 1bKpLi_dvo]

4 Reply by luc (edited by luc 2018-06-02 17:05:55)

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

Repetier for Davinci use custom table because Davinci printer board is not a standard ramps like board.

So changing table to table 8 won't work in this case unless your rework your main board to be able to use common thermistor tables,

This is in FAQ of repetier for Davinci github : https://github.com/luc-github/Repetier- … issues/104

That said the resistors name described in github are for the first generation - may be not for the "a" one - but status is the same

5 Reply by Tin Falcon

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

https://github.com/luc-github/Repetier- … issues/207




I've generated a thermistor table for the Semitec 104GT-2 as shipped with the E3D v6 hotend, this covers the original glass and the new cartridge type.

This table is for use with the 1.0a and any other Davinci models that have a single 1kohm resistor instead of the 4k7 and 10k as found on the 1.0 models. I know some users have removed the 10k and used the standard Repetier tables. You could swap out the 1kohm for a 4k7 and use the generic tables, but cut and paste is much easier.

Can this be added to the firmware as an option for users who have upgraded their hotends/thermistors please?

#define EXT0_TEMPSENSOR_TYPE 7
#define NUM_TEMPS_USERTHERMISTOR2 36
#define USER_THERMISTORTABLE2 {{284, 2400},{324, 2320},{371, 2240},{426, 2160},{491, 2080},{566, 2000},{655, 1920},{759, 1840},{880, 1760},{1020, 1680},{1181, 1600},{1363, 1520},{1566, 1440},{1789, 1360},{2028, 1280},{2278, 1200},{2532, 1120},{2781, 1040},{3018, 960},{3234, 880},{3424, 800},{3587, 720},{3719, 640},{3824, 560},{3904, 480},{3964, 400},{4007, 320},{4037, 240},{4057, 160},{4071, 80},{4080, 0},{4085, -80},{4088, -160},{4090, -240},{4091, -320},{4091, -400}}

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

6 Reply by Mcstarcoin

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

Tin Falcon wrote:

https://e3d-online.dozuki.com/Guide/V6+ … uration/24

Is this the procedure you followed ??

     I followed the link and did what it said, and after reflashing the firmware still no dice. I'm pretty sure this is a firmware issue though

7 Reply by Mcstarcoin

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

Tin Falcon wrote:

https://github.com/luc-github/Repetier- … issues/207




I've generated a thermistor table for the Semitec 104GT-2 as shipped with the E3D v6 hotend, this covers the original glass and the new cartridge type.

This table is for use with the 1.0a and any other Davinci models that have a single 1kohm resistor instead of the 4k7 and 10k as found on the 1.0 models. I know some users have removed the 10k and used the standard Repetier tables. You could swap out the 1kohm for a 4k7 and use the generic tables, but cut and paste is much easier.

Can this be added to the firmware as an option for users who have upgraded their hotends/thermistors please?

#define EXT0_TEMPSENSOR_TYPE 7
#define NUM_TEMPS_USERTHERMISTOR2 36
#define USER_THERMISTORTABLE2 {{284, 2400},{324, 2320},{371, 2240},{426, 2160},{491, 2080},{566, 2000},{655, 1920},{759, 1840},{880, 1760},{1020, 1680},{1181, 1600},{1363, 1520},{1566, 1440},{1789, 1360},{2028, 1280},{2278, 1200},{2532, 1120},{2781, 1040},{3018, 960},{3234, 880},{3424, 800},{3587, 720},{3719, 640},{3824, 560},{3904, 480},{3964, 400},{4007, 320},{4037, 240},{4057, 160},{4071, 80},{4080, 0},{4085, -80},{4088, -160},{4090, -240},{4091, -320},{4091, -400}}

I pasted in your code, and flashed it but it still didn't work. I changed the thermistor type to five and it seems to be working, Yay!!

8 Reply by Tin Falcon

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Re: Help!! Thermistor error (M999) after Davinci 1.0a Upgrade to E3d V6!

Type 5 is another user defined TC but uses table 0
IMHO you should check the curve against a known thermometer.
at least make sure it is correct between 20 c and 280 c

IMho a deviation of more than 5 degrees c and you should mod the table or change themrisistor settings.


And for the record the code you pasted i can take no credit for something i found on github if i felt you could use.

Also do not forget to reset min temp and max temp settings to make full use of the new hot end.

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura