From b0093a15134c1fd28a862d7489a1fb759cf4e670 Mon Sep 17 00:00:00 2001 From: David Forrest Date: Wed, 26 Mar 2014 23:41:10 -0400 Subject: [PATCH] thermistortables.h: Add comments that table 60 uses beta=3950. --- Marlin/Configuration.h | 2 +- Marlin/thermistortables.h | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h index e18c98a437..714bb3e634 100644 --- a/Marlin/Configuration.h +++ b/Marlin/Configuration.h @@ -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) diff --git a/Marlin/thermistortables.h b/Marlin/thermistortables.h index 1d2b3ca65f..6120923f10 100644 --- a/Marlin/thermistortables.h +++ b/Marlin/thermistortables.h @@ -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},