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thermistortables.h: Add comments that table 60 uses beta=3950.

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David Forrest
2014-03-26 23:41:10 -04:00
parent 51c6bd6b72
commit b0093a1513
2 changed files with 9 additions and 1 deletions
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2
Marlin/Configuration.h
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@@ -116,7 +116,7 @@
// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
// 10 is 100k RS thermistor 198-961 (4.7k pullup)
// 20 is the PT100 circuit found in the Ultimainboard V2.x
// 60 is 100k Maker's Tool Works Kapton Bed Thermistor
// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
//
// 1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
// (but gives greater accuracy and more stable PID)

8
Marlin/thermistortables.h
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@@ -781,6 +781,14 @@ const short temptable_55[][2] PROGMEM = {
#endif
#if (THERMISTORHEATER_0 == 60) || (THERMISTORHEATER_1 == 60) || (THERMISTORHEATER_2 == 60) || (THERMISTORBED == 60) // Maker's Tool Works Kapton Bed Thermister
// ./createTemperatureLookup.py --r0=100000 --t0=25 --r1=0 --r2=4700 --beta=3950
// r0: 100000
// t0: 25
// r1: 0 (parallel with rTherm)
// r2: 4700 (series with rTherm)
// beta: 3950
// min adc: 1 at 0.0048828125 V
// max adc: 1023 at 4.9951171875 V
const short temptable_60[][2] PROGMEM = {
{51*OVERSAMPLENR, 272},
{61*OVERSAMPLENR, 258},