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This table is made for thermistor 3950 (can be found on ebay for cheap)

Browse source 
it's caracteristics are :

R25℃ ;100KΩ±1%

B Value(R25/50℃)：3990K 1%
Dissipation Factor(mW/℃)：1.1~1.6 In still Air
Thermal Time Constant(S)：10~17 In Still Air
Operating temperature range：  (-50~+260°C)
Dimension：  1.8mm Dia X4.1mm
Lead Length  ：30mm

This table was found on the following blogs:
http://cae2100.wordpress.com/2014/03/08/beta3950-thermistor-table-for-marlin/

and

http://microfabricator.com/articles/view/id/531ad7e59aad9d3131000000/beta-3950-thermistor-table-for-marlin
This commit is contained in:
Nutz95 2014-04-13 17:03:20 +02:00
parent 086ff1644f
commit 3161740df9
2 changed files with 127 additions and 72 deletions
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1
Marlin/Configuration.h
View file

@ -115,6 +115,7 @@
// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
// 10 is 100k RS thermistor 198-961 (4.7k pullup)
// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
// 20 is the PT100 circuit found in the Ultimainboard V2.x
// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
//

198
Marlin/thermistortables.h
View file

@ -563,78 +563,132 @@ const short temptable_10[][2] PROGMEM = {
{1016*OVERSAMPLENR, 0}
};
#endif
#if (THERMISTORHEATER_0 == 20) || (THERMISTORHEATER_1 == 20) || (THERMISTORHEATER_2 == 20) || (THERMISTORBED == 20) // PT100 with INA826 amp on Ultimaker v2.0 electronics
/* The PT100 in the Ultimaker v2.0 electronics has a high sample value for a high temperature.
This does not match the normal thermistor behaviour so we need to set the following defines */
#if (THERMISTORHEATER_0 == 20)
# define HEATER_0_RAW_HI_TEMP 16383
# define HEATER_0_RAW_LO_TEMP 0
#endif
#if (THERMISTORHEATER_1 == 20)
# define HEATER_1_RAW_HI_TEMP 16383
# define HEATER_1_RAW_LO_TEMP 0
#endif
#if (THERMISTORHEATER_2 == 20)
# define HEATER_2_RAW_HI_TEMP 16383
# define HEATER_2_RAW_LO_TEMP 0
#endif
#if (THERMISTORBED == 20)
# define HEATER_BED_RAW_HI_TEMP 16383
# define HEATER_BED_RAW_LO_TEMP 0
#endif
const short temptable_20[][2] PROGMEM = {
{ 0*OVERSAMPLENR , 0 },
{ 227*OVERSAMPLENR , 1 },
{ 236*OVERSAMPLENR , 10 },
{ 245*OVERSAMPLENR , 20 },
{ 253*OVERSAMPLENR , 30 },
{ 262*OVERSAMPLENR , 40 },
{ 270*OVERSAMPLENR , 50 },
{ 279*OVERSAMPLENR , 60 },
{ 287*OVERSAMPLENR , 70 },
{ 295*OVERSAMPLENR , 80 },
{ 304*OVERSAMPLENR , 90 },
{ 312*OVERSAMPLENR , 100 },
{ 320*OVERSAMPLENR , 110 },
{ 329*OVERSAMPLENR , 120 },
{ 337*OVERSAMPLENR , 130 },
{ 345*OVERSAMPLENR , 140 },
{ 353*OVERSAMPLENR , 150 },
{ 361*OVERSAMPLENR , 160 },
{ 369*OVERSAMPLENR , 170 },
{ 377*OVERSAMPLENR , 180 },
{ 385*OVERSAMPLENR , 190 },
{ 393*OVERSAMPLENR , 200 },
{ 401*OVERSAMPLENR , 210 },
{ 409*OVERSAMPLENR , 220 },
{ 417*OVERSAMPLENR , 230 },
{ 424*OVERSAMPLENR , 240 },
{ 432*OVERSAMPLENR , 250 },
{ 440*OVERSAMPLENR , 260 },
{ 447*OVERSAMPLENR , 270 },
{ 455*OVERSAMPLENR , 280 },
{ 463*OVERSAMPLENR , 290 },
{ 470*OVERSAMPLENR , 300 },
{ 478*OVERSAMPLENR , 310 },
{ 485*OVERSAMPLENR , 320 },
{ 493*OVERSAMPLENR , 330 },
{ 500*OVERSAMPLENR , 340 },
{ 507*OVERSAMPLENR , 350 },
{ 515*OVERSAMPLENR , 360 },
{ 522*OVERSAMPLENR , 370 },
{ 529*OVERSAMPLENR , 380 },
{ 537*OVERSAMPLENR , 390 },
{ 544*OVERSAMPLENR , 400 },
{ 614*OVERSAMPLENR , 500 },
{ 681*OVERSAMPLENR , 600 },
{ 744*OVERSAMPLENR , 700 },
{ 805*OVERSAMPLENR , 800 },
{ 862*OVERSAMPLENR , 900 },
{ 917*OVERSAMPLENR , 1000 },
{ 968*OVERSAMPLENR , 1100 }
};
#endif
#if (THERMISTORHEATER_0 == 11) || (THERMISTORHEATER_1 == 11) || (THERMISTORHEATER_2 == 11) || (THERMISTORBED == 11) // QU-BD silicone bed QWG-104F-3950 thermistor
const short temptable_8[][2] PROGMEM = {
{1*OVERSAMPLENR, 938},
{31*OVERSAMPLENR, 314},
{41*OVERSAMPLENR, 290},
{51*OVERSAMPLENR, 272},
{61*OVERSAMPLENR, 258},
{71*OVERSAMPLENR, 247},
{81*OVERSAMPLENR, 237},
{91*OVERSAMPLENR, 229},
{101*OVERSAMPLENR, 221},
{111*OVERSAMPLENR, 215},
{121*OVERSAMPLENR, 209},
{131*OVERSAMPLENR, 204},
{141*OVERSAMPLENR, 199},
{151*OVERSAMPLENR, 195},
{161*OVERSAMPLENR, 190},
{171*OVERSAMPLENR, 187},
{181*OVERSAMPLENR, 183},
{191*OVERSAMPLENR, 179},
{201*OVERSAMPLENR, 176},
{221*OVERSAMPLENR, 170},
{241*OVERSAMPLENR, 165},
{261*OVERSAMPLENR, 160},
{281*OVERSAMPLENR, 155},
{301*OVERSAMPLENR, 150},
{331*OVERSAMPLENR, 144},
{361*OVERSAMPLENR, 139},
{391*OVERSAMPLENR, 133},
{421*OVERSAMPLENR, 128},
{451*OVERSAMPLENR, 123},
{491*OVERSAMPLENR, 117},
{531*OVERSAMPLENR, 111},
{571*OVERSAMPLENR, 105},
{611*OVERSAMPLENR, 100},
{641*OVERSAMPLENR, 95},
{681*OVERSAMPLENR, 90},
{711*OVERSAMPLENR, 85},
{751*OVERSAMPLENR, 79},
{791*OVERSAMPLENR, 72},
{811*OVERSAMPLENR, 69},
{831*OVERSAMPLENR, 65},
{871*OVERSAMPLENR, 57},
{881*OVERSAMPLENR, 55},
{901*OVERSAMPLENR, 51},
{921*OVERSAMPLENR, 45},
{941*OVERSAMPLENR, 39},
{971*OVERSAMPLENR, 28},
{981*OVERSAMPLENR, 23},
{991*OVERSAMPLENR, 17},
{1001*OVERSAMPLENR, 9},
{1021*OVERSAMPLENR, -27}
};
#endif
#if (THERMISTORHEATER_0 == 20) || (THERMISTORHEATER_1 == 20) || (THERMISTORHEATER_2 == 20) || (THERMISTORBED == 20) // PT100 with INA826 amp on Ultimaker v2.0 electronics
/* The PT100 in the Ultimaker v2.0 electronics has a high sample value for a high temperature.
This does not match the normal thermistor behaviour so we need to set the following defines */
#if (THERMISTORHEATER_0 == 20)
# define HEATER_0_RAW_HI_TEMP 16383
# define HEATER_0_RAW_LO_TEMP 0
#endif
#if (THERMISTORHEATER_1 == 20)
# define HEATER_1_RAW_HI_TEMP 16383
# define HEATER_1_RAW_LO_TEMP 0
#endif
#if (THERMISTORHEATER_2 == 20)
# define HEATER_2_RAW_HI_TEMP 16383
# define HEATER_2_RAW_LO_TEMP 0
#endif
#if (THERMISTORBED == 20)
# define HEATER_BED_RAW_HI_TEMP 16383
# define HEATER_BED_RAW_LO_TEMP 0
#endif
const short temptable_20[][2] PROGMEM = {
{ 0*OVERSAMPLENR , 0 },
{ 227*OVERSAMPLENR , 1 },
{ 236*OVERSAMPLENR , 10 },
{ 245*OVERSAMPLENR , 20 },
{ 253*OVERSAMPLENR , 30 },
{ 262*OVERSAMPLENR , 40 },
{ 270*OVERSAMPLENR , 50 },
{ 279*OVERSAMPLENR , 60 },
{ 287*OVERSAMPLENR , 70 },
{ 295*OVERSAMPLENR , 80 },
{ 304*OVERSAMPLENR , 90 },
{ 312*OVERSAMPLENR , 100 },
{ 320*OVERSAMPLENR , 110 },
{ 329*OVERSAMPLENR , 120 },
{ 337*OVERSAMPLENR , 130 },
{ 345*OVERSAMPLENR , 140 },
{ 353*OVERSAMPLENR , 150 },
{ 361*OVERSAMPLENR , 160 },
{ 369*OVERSAMPLENR , 170 },
{ 377*OVERSAMPLENR , 180 },
{ 385*OVERSAMPLENR , 190 },
{ 393*OVERSAMPLENR , 200 },
{ 401*OVERSAMPLENR , 210 },
{ 409*OVERSAMPLENR , 220 },
{ 417*OVERSAMPLENR , 230 },
{ 424*OVERSAMPLENR , 240 },
{ 432*OVERSAMPLENR , 250 },
{ 440*OVERSAMPLENR , 260 },
{ 447*OVERSAMPLENR , 270 },
{ 455*OVERSAMPLENR , 280 },
{ 463*OVERSAMPLENR , 290 },
{ 470*OVERSAMPLENR , 300 },
{ 478*OVERSAMPLENR , 310 },
{ 485*OVERSAMPLENR , 320 },
{ 493*OVERSAMPLENR , 330 },
{ 500*OVERSAMPLENR , 340 },
{ 507*OVERSAMPLENR , 350 },
{ 515*OVERSAMPLENR , 360 },
{ 522*OVERSAMPLENR , 370 },
{ 529*OVERSAMPLENR , 380 },
{ 537*OVERSAMPLENR , 390 },
{ 544*OVERSAMPLENR , 400 },
{ 614*OVERSAMPLENR , 500 },
{ 681*OVERSAMPLENR , 600 },
{ 744*OVERSAMPLENR , 700 },
{ 805*OVERSAMPLENR , 800 },
{ 862*OVERSAMPLENR , 900 },
{ 917*OVERSAMPLENR , 1000 },
{ 968*OVERSAMPLENR , 1100 }
};
#endif
#if (THERMISTORHEATER_0 == 51) || (THERMISTORHEATER_1 == 51) || (THERMISTORHEATER_2 == 51) || (THERMISTORBED == 51)
// 100k EPCOS (WITH 1kohm RESISTOR FOR PULLUP, R9 ON SANGUINOLOLU! NOT FOR 4.7kohm PULLUP! THIS IS NOT NORMAL!)