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New nonlinear spindle speed PWM output model and solution. Updated scripts.

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[new] A nonlinear spindle speed/PWM output option via a piecewise
linear fit model. Enabled through config.h and solved by a Python
script in /doc/script

[new] fit_nonlinear_spindle.py. A solver script that can be run on
http://repl.it for free. No Python install necessary. All instructions
are available in the script file comments.

[new] stream.py has been updated to include status reports feedback at
1 second interval.

[fix] stream.py bug fix with verbose mode disabled.
This commit is contained in:
chamnit 2017-05-31 21:37:21 -06:00
parent 775acac601
commit 790c666ecb
6 changed files with 503 additions and 38 deletions
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25
grbl/config.h
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@ -586,6 +586,31 @@
// to ensure the laser doesn't inadvertently remain powered while at a stop and cause a fire.
#define DISABLE_LASER_DURING_HOLD // Default enabled. Comment to disable.
// Enables a piecewise linear model of the spindle PWM/speed output. Requires a solution by the
// 'fit_nonlinear_spindle.py' script in the /doc/script folder of the repo. See file comments
// on how to gather spindle data and run the script to generate a solution.
// #define ENABLE_PIECEWISE_LINEAR_SPINDLE // Default disabled. Uncomment to enable.
// N_PIECES, RPM_MAX, RPM_MIN, RPM_POINTxx, and RPM_LINE_XX constants are all set and given by
// the 'fit_nonlinear_spindle.py' script solution. Used only when ENABLE_PIECEWISE_LINEAR_SPINDLE
// is enabled. Make sure the constant values are exactly the same as the script solution.
// NOTE: When N_PIECES < 4, unused RPM_LINE and RPM_POINT defines are not required and omitted.
#define N_PIECES 4 // Integer (1-4). Number of piecewise lines used in script solution.
#define RPM_MAX 11686.4 // Max RPM of model. $30 > RPM_MAX will be limited to RPM_MAX.
#define RPM_MIN 202.5 // Min RPM of model. $31 < RPM_MIN will be limited to RPM_MIN.
#define RPM_POINT12 6145.4 // Used N_PIECES >=2. Junction point between lines 1 and 2.
#define RPM_POINT23 9627.8 // Used N_PIECES >=3. Junction point between lines 2 and 3.
#define RPM_POINT34 10813.9 // Used N_PIECES = 4. Junction point between lines 3 and 4.
#define RPM_LINE_A1 3.197101e-03 // Used N_PIECES >=1. A and B constants of line 1.
#define RPM_LINE_B1 -3.526076e-1
#define RPM_LINE_A2 1.722950e-2 // Used N_PIECES >=2. A and B constants of line 2.
#define RPM_LINE_B2 8.588176e+01
#define RPM_LINE_A3 5.901518e-02 // Used N_PIECES >=3. A and B constants of line 3.
#define RPM_LINE_B3 4.881851e+02
#define RPM_LINE_A4 1.203413e-01 // Used N_PIECES = 4. A and B constants of line 4.
#define RPM_LINE_B4 1.151360e+03
/* ---------------------------------------------------------------------------------------
OEM Single File Configuration Option