Scott Lahteine
8 years ago
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/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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// Generic Silicon Heat Pad with NTC 100K thermistor ( Beta 25/50 3950K)
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//
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// Many of the generic silicon heat pads use the MGB18-104F39050L32 Thermistor It is used for various
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// wattage and voltage heat pads. This table is correct if this part is used. It has been
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// optimized to provide good granularity around the 60 C. and 110 C. which corrisponds to bed temperatures
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// for PLA and ABS. If you are printing higher temperature filament such as nylon you can uncomment
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// the higher earlier entries in the table to give better accuracy. But for speed reasons, if these
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// temperatures are not going to be used, it is better to leave them commented out.
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const short temptable_75[][2] PROGMEM = { // Generic Silicon Heat Pad with NTC 100K MGB18-104F39050L32 thermistor
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{ (short) ( 111.06 * OVERSAMPLENR ), 200 }, // v=0.542 r=571.747 res=0.501 degC/count
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// { (short) ( 174.87 * OVERSAMPLENR ), 175 }, // v=0.854 r=967.950 res=0.311 degC/count These values are valid. But they serve no
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// { (short) ( 191.64 * OVERSAMPLENR ), 170 }, // v=0.936 r=1082.139 res=0.284 degC/count purpose. It is better to delete them so
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// { (short) ( 209.99 * OVERSAMPLENR ), 165 }, // v=1.025 r=1212.472 res=0.260 degC/count the search is quicker and get to the meaningful
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// { (short) ( 230.02 * OVERSAMPLENR ), 160 }, // v=1.123 r=1361.590 res=0.239 degC/count part of the table sooner.
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// { (short) ( 251.80 * OVERSAMPLENR ), 155 }, // v=1.230 r=1532.621 res=0.220 degC/count
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{ (short) ( 275.43 * OVERSAMPLENR ), 150 }, // v=1.345 r=1729.283 res=0.203 degC/count
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// { (short) ( 300.92 * OVERSAMPLENR ), 145 }, // v=1.469 r=1956.004 res=0.189 degC/coun
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{ (short) ( 328.32 * OVERSAMPLENR ), 140 }, // v=1.603 r=2218.081 res=0.176 degC/count
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{ (short) ( 388.65 * OVERSAMPLENR ), 130 }, // v=1.898 r=2874.980 res=0.156 degC/count
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{ (short) ( 421.39 * OVERSAMPLENR ), 125 }, // v=2.058 r=3286.644 res=0.149 degC/count
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{ (short) ( 455.65 * OVERSAMPLENR ), 120 }, // v=2.225 r=3768.002 res=0.143 degC/count
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{ (short) ( 491.17 * OVERSAMPLENR ), 115 }, // v=2.398 r=4332.590 res=0.139 degC/count
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{ (short) ( 527.68 * OVERSAMPLENR ), 110 }, // v=2.577 r=4996.905 res=0.136 degC/count
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{ (short) ( 564.81 * OVERSAMPLENR ), 105 }, // v=2.758 r=5781.120 res=0.134 degC/count
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{ (short) ( 602.19 * OVERSAMPLENR ), 100 }, // v=2.940 r=6710.000 res=0.134 degC/count
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{ (short) ( 676.03 * OVERSAMPLENR ), 90 }, // v=3.301 r=9131.018 res=0.138 degC/count
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{ (short) ( 745.85 * OVERSAMPLENR ), 80 }, // v=3.642 r=12602.693 res=0.150 degC/count
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{ (short) ( 778.31 * OVERSAMPLENR ), 75 }, // v=3.800 r=14889.001 res=0.159 degC/count
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{ (short) ( 808.75 * OVERSAMPLENR ), 70 }, // v=3.949 r=17658.700 res=0.171 degC/count
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{ (short) ( 836.94 * OVERSAMPLENR ), 65 }, // v=4.087 r=21028.040 res=0.185 degC/count
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{ (short) ( 862.74 * OVERSAMPLENR ), 60 }, // v=4.213 r=25144.568 res=0.204 degC/count
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{ (short) ( 886.08 * OVERSAMPLENR ), 55 }, // v=4.327 r=30196.449 res=0.227 degC/count
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{ (short) ( 906.97 * OVERSAMPLENR ), 50 }, // v=4.429 r=36424.838 res=0.255 degC/count
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{ (short) ( 941.65 * OVERSAMPLENR ), 40 }, // v=4.598 r=53745.337 res=0.333 degC/count
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{ (short) ( 967.76 * OVERSAMPLENR ), 30 }, // v=4.725 r=80880.630 res=0.452 degC/count
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{ (short) ( 978.03 * OVERSAMPLENR ), 25 }, // v=4.776 r=100000.000 res=0.535 degC/count
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{ (short) ( 981.68 * OVERSAMPLENR ), 23 }, // v=4.793 r=109024.395 res=0.573 degC/count
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{ (short) ( 983.41 * OVERSAMPLENR ), 22 }, // v=4.802 r=113875.430 res=0.594 degC/count
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{ (short) ( 985.08 * OVERSAMPLENR ), 21 }, // v=4.810 r=118968.955 res=0.616 degC/count
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{ (short) ( 986.70 * OVERSAMPLENR ), 20 }, // v=4.818 r=124318.354 res=0.638 degC/count
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{ (short) ( 993.94 * OVERSAMPLENR ), 15 }, // v=4.853 r=155431.302 res=0.768 degC/count
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{ (short) ( 999.96 * OVERSAMPLENR ), 10 }, // v=4.883 r=195480.023 res=0.934 degC/count
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{ (short) (1008.95 * OVERSAMPLENR ), 0 } // v=4.926 r=314997.575 res=1.418 degC/count
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};
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