71f333ddca
This is likely the last major change to the v0.9 code base before push to master. Only two minor things remain on the agenda (CoreXY support, force clear EEPROM, and an extremely low federate bug). - NEW! Grbl is now compile-able and may be flashed directly through the Arduino IDE. Only minor changes were required for this compatibility. See the Wiki to learn how to do it. - New status reporting mask to turn on and off what Grbl sends back. This includes machine coordinates, work coordinates, serial RX buffer usage, and planner buffer usage. Expandable to more information on user request, but that’s it for now. - Settings have been completely renumbered to allow for future new settings to be installed without having to constantly reshuffle and renumber all of the settings every time. - All settings masks have been standardized to mean bit 0 = X, bit 1 = Y, and bit 2 = Z, to reduce confusion on how they work. The invert masks used by the internal Grbl system were updated to accommodate this change as well. - New invert probe pin setting, which does what it sounds like. - Fixed a probing cycle bug, where it would freeze intermittently, and removed some redundant code. - Homing may now be set to the origin wherever the limit switches are. Traditionally machine coordinates should always be in negative space, but when limit switches on are on the opposite side, the machine coordinate would be set to -max_travel for the axis. Now you can always make it [0,0,0] via a compile-time option in config.h. (Soft limits routine was updated to account for this as well.) - Probe coordinate message immediately after a probing cycle may now be turned off via a compile-time option in config.h. By default the probing location is always reported. - Reduced the N_ARC_CORRECTION default value to reflect the changes in how circles are generated by an arc tolerance, rather than a fixed arc segment setting. - Increased the incoming line buffer limit from 70 to 80 characters. Had some extra memory space to invest into this. - Fixed a bug where tool number T was not being tracked and reported correctly. - Added a print free memory function for debugging purposes. Not used otherwise. - Realtime rate report should now work during feed holds, but it hasn’t been tested yet. - Updated the streaming scripts with MIT-license and added the simple streaming to the main stream.py script to allow for settings to be sent. - Some minor code refactoring to improve flash efficiency. Reduced the flash by several hundred KB, which was re-invested in some of these new features.
66 lines
2.3 KiB
Python
Executable File
66 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python
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"""\
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Simple g-code streaming script for grbl
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Provided as an illustration of the basic communication interface
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for grbl. When grbl has finished parsing the g-code block, it will
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return an 'ok' or 'error' response. When the planner buffer is full,
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grbl will not send a response until the planner buffer clears space.
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G02/03 arcs are special exceptions, where they inject short line
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segments directly into the planner. So there may not be a response
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from grbl for the duration of the arc.
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---------------------
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The MIT License (MIT)
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Copyright (c) 2012 Sungeun K. Jeon
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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---------------------
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"""
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import serial
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import time
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# Open grbl serial port
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s = serial.Serial('/dev/tty.usbmodem1811',115200)
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# Open g-code file
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f = open('grbl.gcode','r');
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# Wake up grbl
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s.write("\r\n\r\n")
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time.sleep(2) # Wait for grbl to initialize
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s.flushInput() # Flush startup text in serial input
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# Stream g-code to grbl
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for line in f:
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l = line.strip() # Strip all EOL characters for consistency
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print 'Sending: ' + l,
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s.write(l + '\n') # Send g-code block to grbl
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grbl_out = s.readline() # Wait for grbl response with carriage return
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print ' : ' + grbl_out.strip()
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# Wait here until grbl is finished to close serial port and file.
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raw_input(" Press <Enter> to exit and disable grbl.")
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# Close file and serial port
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f.close()
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s.close() |