what is the correct way to type this in (TEMISTORTABLE)

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spart
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Location: Edmonton Alberta Canada

what is the correct way to type this in (TEMISTORTABLE)

Post by spart »

not to sure how to do this part as in type this in or were to place numbers do ya take the calculation number in the chart that's close to your readings and place it in between {} in the #define USER_THERMISTORTABLE1 {} line. i have the 1.75mm Hot End for direct drive extruders kit with 100k ohm therm from seemecnc i only have 1 extruder. what would be the correct way to do this or fill this in, if ya have a number that works with this kit not to sure on the one i need yet. they need to have a example way to type this in for newbs lol.

/** Number of entries in the user thermistortable 0. Set to 0 to disable it. */
#define NUM_TEMPS_USERTHERMISTOR0 28
#define USER_THERMISTORTABLE0 {\
{1*4,864*8},{21*4,300*8},{25*4,290*8},{29*4,280*8},{33*4,270*8},{39*4,260*8},{46*4,250*8},{54*4,240*8},{64*4,230*8},{75*4,220*8},\
{90*4,210*8},{107*4,200*8},{128*4,190*8},{154*4,180*8},{184*4,170*8},{221*4,160*8},{265*4,150*8},{316*4,140*8},{375*4,130*8},\
{441*4,120*8},{513*4,110*8},{588*4,100*8},{734*4,80*8},{856*4,60*8},{938*4,40*8},{986*4,20*8},{1008*4,0*8},{1018*4,-20*8} }

/** Number of entries in the user thermistortable 1. Set to 0 to disable it. */
#define NUM_TEMPS_USERTHERMISTOR1 1
#define USER_THERMISTORTABLE1 {}
/** Number of entries in the user thermistortable 2. Set to 0 to disable it. */
#define NUM_TEMPS_USERTHERMISTOR2 1
#define USER_THERMISTORTABLE2 {}
Polygonhell
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Re: what is the correct way to type this in (TEMISTORTABLE)

Post by Polygonhell »

The pairs of numbers are. DAC reading * 8, and temperature in C * 8
If your using repetier it's much easier just to set the Beta value of the thermistor.
spart
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Posts: 66
Joined: Sun Jun 02, 2013 7:12 pm
Location: Edmonton Alberta Canada

Re: what is the correct way to type this in (TEMISTORTABLE)

Post by spart »

so i dont touch that just leave it as it is and just change the beta numbers this is what i got it set to now.. do i have to double slash out anything before this or set to 0 to disable dont know what to do with the *8 *8 lol iam lost i think all i changed in here was 4267 to 4092 not to sure i even did that wright ahhhhhhhhhh

/** Reference resistance */
#define GENERIC_THERM1_R0 100000
/** Temperature at reference resistance */
#define GENERIC_THERM1_T0 25
/** Beta value of thermistor

You can use the beta from the datasheet or compute it yourself. See
http://reprap.org/wiki/MeasuringThermistorBeta
for more details.
*/
#define GENERIC_THERM1_BETA 4092 //default was 4267 for Semitec 104GT2 thermistors in SeeMeCNC Hotends, but this value was found to be more accurate
/** Start temperature for generated thermistor table */
#define GENERIC_THERM1_MIN_TEMP -20
/** End Temperature for generated thermistor table */
#define GENERIC_THERM1_MAX_TEMP 300
#define GENERIC_THERM1_R1 0
#define GENERIC_THERM1_R2 4700
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