<![CDATA[SoliForum - 3D Printing Community — E3D clone fries board?]]> 2017-09-18T16:39:12Z PunBB https://www.soliforum.com/topic/16743/e3d-clone-fries-board/ <![CDATA[Re: E3D clone fries board?]]> OK, I did the same thing yesterday, my E3D is from Ebay, and it didn't say what thermostats it uses. based on the model, it should be using  5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup), but it gives me 758C at room temperature(28C). So I tried every possible setting, it is not working.

So I test the resistance of thermostats with multi-meter, it reads 0.4 ohms. that can't be right, I decide the thermostats is burned somehow and decide to replace with the thermostats on my stock hotend. after I unscrewed the thermostats on E3D, the temperature changed. So I change the seting back to 5 for 104GT-2, and it reads 28C now.

It turns out the screw that fix thermostats to the hot-end is screwed too tight and break the plastic shell of thermostats wire and short circuit it. It did not damage anything, but give wrong reading because resistance is very low. I tape the wire with kapton tape and put it back with screw, everything is normal now. So before you mess up with anything else, test resistance on your thermostats, it should more than 100 ohm if not short circuited by the screw.

]]> https://www.soliforum.com/user/17164/ 2017-09-18T16:39:12Z https://www.soliforum.com/post/138241/#p138241 <![CDATA[Re: E3D clone fries board?]]> chevydan6 wrote:

what the heck is U1?

U1 is an opto sensor that is based on reflection. It has two windows where one emits a light beam and the other receives the beam reflected from in object. In this case that black and white wheel on the idler pulley. If the filament jams then the wheel will stop spinning and will no longer generate pulses on U1 and the machine will or should give you and alarm.

It is the same device as U2, just a different configuration. One window is an IR LED, while the other window is a phototransistor.

]]> https://www.soliforum.com/user/7731/ 2017-09-14T22:16:55Z https://www.soliforum.com/post/138047/#p138047 <![CDATA[Re: E3D clone fries board?]]> what the heck is U1?

]]> https://www.soliforum.com/user/4747/ 2017-09-14T21:33:19Z https://www.soliforum.com/post/138045/#p138045 <![CDATA[Re: E3D clone fries board?]]> carl_m1968 wrote:

I am going to say based on the image that R2 would be the magic resistor. R8 limits current to your A fan, R1 limits current to your B fan, and R4 limits current to the LED in the spin sensor. R6 and R9 limit the current on the Out of Filament sensor in the middle.

Nice analysis Carl...

]]> https://www.soliforum.com/user/16979/ 2017-09-14T21:11:25Z https://www.soliforum.com/post/138044/#p138044 <![CDATA[Re: E3D clone fries board?]]> I am going to say based on the image that R2 would be the magic resistor. R8 limits current to your A fan, R1 limits current to your B fan, and R4 limits current to the LED in the spin sensor. R6 and R9 limit the current on the Out of Filament sensor in the middle.

]]> https://www.soliforum.com/user/7731/ 2017-09-14T18:07:36Z https://www.soliforum.com/post/138036/#p138036 <![CDATA[Re: E3D clone fries board?]]> I'm not fimilar with thermistor ciruits. So I posted a pic of boardhttp://soliforum.com/i/?Znw0tAT.jpg

]]> https://www.soliforum.com/user/4747/ 2017-09-14T17:18:39Z https://www.soliforum.com/post/138033/#p138033 <![CDATA[Re: E3D clone fries board?]]> chevydan6 wrote:

So where is the pullup resister for the the extruder thermistor. I changed the pullup resistor for the heatbed thermistor so that i could use the stock NTC3850 without having to mess with the tables.

On the 1.0A it was on the PCB inside the extruder. On that model the thermistor connected to pne side of that board then the other side of that board was connected to the mainboard.

]]> https://www.soliforum.com/user/7731/ 2017-09-14T02:40:50Z https://www.soliforum.com/post/138016/#p138016 <![CDATA[Re: E3D clone fries board?]]> So where is the pullup resister for the the extruder thermistor. I changed the pullup resistor for the heatbed thermistor so that i could use the stock NTC3850 without having to mess with the tables.

]]> https://www.soliforum.com/user/4747/ 2017-09-14T02:37:56Z https://www.soliforum.com/post/138014/#p138014 <![CDATA[Re: E3D clone fries board?]]> It is an 100K thermistor, set your configuration to the bold text below. If it is broken, buy NTC3950 from Amazon. You might need some kapton tape to help it stay in the extruder.

https://www.amazon.com/gp/product/B072B … &psc=1

https://www.amazon.com/ProTapes-Pro-Pol … Q3WH6VXE37

/**
* --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
*
* Temperature sensors available:
*
*    -3 : thermocouple with MAX31855 (only for sensor 0)
*    -2 : thermocouple with MAX6675 (only for sensor 0)
*    -1 : thermocouple with AD595
*     0 : not used
*     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
*     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
*     3 : Mendel-parts thermistor (4.7k pullup)
*     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
*     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
*     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
*     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
*    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
*     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
*     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
*    10 : 100k RS thermistor 198-961 (4.7k pullup)
*    11 : 100k beta 3950 1% thermistor (4.7k pullup)
*    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
*    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
*    20 : the PT100 circuit found in the Ultimainboard V2.x
*    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
*    66 : 4.7M High Temperature thermistor from Dyze Design
*    70 : the 100K thermistor found in the bq Hephestos 2
*    75 : 100k Generic Silicon Heat Pad with NTC 100K MGB18-104F39050L32 thermistor
*
*       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
*                              (but gives greater accuracy and more stable PID)
*    51 : 100k thermistor - EPCOS (1k pullup)
*    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
*    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
*
*  1047 : Pt1000 with 4k7 pullup
*  1010 : Pt1000 with 1k pullup (non standard)
*   147 : Pt100 with 4k7 pullup
*   110 : Pt100 with 1k pullup (non standard)
*
*         Use these for Testing or Development purposes. NEVER for production machine.
*   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
*   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
*
* :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
*/
#define TEMP_SENSOR_0 1
#define TEMP_SENSOR_1 0
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_3 0
#define TEMP_SENSOR_4 0
#define TEMP_SENSOR_BED 0

]]> https://www.soliforum.com/user/17164/ 2017-09-13T19:15:31Z https://www.soliforum.com/post/138009/#p138009 <![CDATA[Re: E3D clone fries board?]]> Time to get out the DVM and check some voltage and resistance.
Check the thermistor resistance both at ambient temperature and at a higher temperature ( warm it in your fingers )
Check for voltage at the heater element wires at the extruder board when it is trying to heat.  I don't know the pinouts, just trace these wires.
Google images for your parts should help.
Let us know what you find.

]]> https://www.soliforum.com/user/16979/ 2017-09-13T18:41:51Z https://www.soliforum.com/post/138008/#p138008 <![CDATA[Re: E3D clone fries board?]]> The fan does not come on unless the system sees a head temp of 50c or higher.

]]> https://www.soliforum.com/user/7731/ 2017-09-13T16:38:36Z https://www.soliforum.com/post/137998/#p137998 <![CDATA[E3D clone fries board?]]> So i put in a E3D clone into my Davinci 1.0A and when i started up printer it didnt read the thermistor on the extruder right. So i changed it to NTC 3850 in the firmware. Then the thermistor stopped reading all together. but the fan worked. now after trying to get the thermistor to work, the fan stopped workin! I checked the harness and the harness is fine. SO what pinouts do i need to check to make sure everything works on the board? Are there fuses on the board that need to be fixed? did i fry the little board in the extruder or the mainboard. Im still using the stock 5v fan.

]]> https://www.soliforum.com/user/4747/ 2017-09-13T15:50:37Z https://www.soliforum.com/post/137996/#p137996