---------------- Date: 2015-03-29 Author: Sonny Jeon Subject: Fix for limit pin reporting compile-option - The limit pin reporting wasn’t working correctly due to calling the wrong similarly-named function. Verified to be working now. ---------------- Date: 2015-03-29 Author: Sonny Jeon Subject: Commit history, logo license, full-arc fix. - Commit history added to repo, as an easier way for people to see view the changes over time. - Grbl logo copyright license added. All rights reserved with regards to the Grbl logo. - G2/3 full circles would sometime not execute. The problem was due to numerical round-off of a trig calculation. Added a machine epsilon define to help detect and correct for this problem. Tested and should not effect general operation of arcs. ---------------- Date: 2015-03-27 Author: Sungeun Jeon Subject: Compile-option for inverting spindle enable. - Installed a compile-option for inverting the spindle enable pin for certain electronics boards users have reported needing this. ---------------- Date: 2015-03-27 Author: Sungeun Jeon Subject: New compile options and inverse time bug fix. - Apparently inverse time motion were not working for quite some time. Goes to show how many people actually use it. The calculation was bad and is now fixed in this update. It should now work correctly. - `;` comment type is now supported. This is standard on LinuxCNC and common on 3d printers. It was previously not supported due to not existing in the NIST standard, which is out-dated. - New compile-option to ECHO the line received. This should help users experiencing very weird problems and help diagnose if there is something amiss in the communication to Grbl. - New compile-option to use the spindle direction pin D13 as a spindle enable pin with PWM spindle speed on D11. This feature has been requested often from the laser cutter community. Since spindle direction isn’t really of much use, it seemed like good good trade. Note that M4 spindle enable counter-clock-wise support is removed for obvious reasons, while M3 and M5 still work. ---------------- Date: 2015-03-27 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2015-03-26 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2015-03-16 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2015-03-15 Author: Sungeun Jeon Subject: Updated README ---------------- Date: 2015-03-15 Author: Sonny Jeon Subject: Create README.md ---------------- Date: 2015-03-15 Author: Sungeun Jeon Subject: Merge branch 'edge' ---------------- Date: 2015-03-15 Author: Sungeun Jeon Subject: Updated README. - Also altered the G38.X reporting to save some bytes. ---------------- Date: 2015-03-14 Author: Sungeun Jeon Subject: Cleaned-up limit pin reporting and comments. - Cleaned up the limit pin state reporting option to display only the state per axis, rather than the whole port. It’s organized by an XYZ order, 0(low)-1(high), and generally looks like `Lim:001`. - Separated the control pin state reporting from limit state reporting as a new compile option. This stayed the same in terms of showing the entire port in binary, since it’s not anticipated that this will be used much, if at all. - Updated some of the gcode source comments regarding supported g-codes. ---------------- Date: 2015-03-07 Author: Sonny Jeon Subject: Another homing cycle fix. - The homing cycle should be working again. Reverted it back to how it was about a month ago before I started to fiddle with it. Turns out that my past self knew what he was doing. ---------------- Date: 2015-03-04 Author: Sonny Jeon Subject: Arduino IDE compatibility and minor homing fixes - Added an include in the right spot, if a user tries to compile and upload Grbl through the Arduino IDE with the old way. - Fixed a minor bug with homing max travel calculations. It was causing simultaneous axes homing to move slow than it did before. ---------------- Date: 2015-02-25 Author: Sonny Jeon Subject: G91.1 support. Fixed a config.h option. - G91.1 support added. This g-code sets the arc IJK distance mode to incremental, which is the default already. This simply helps reduce parsing errors with certain CAM programs that output this command. - Max step rate checks weren’t being compiled in if the option was enabled. Fixed now. - Alarm codes were not displaying correctly when GUI reporting mode was enabled. Due to unsigned int problem. Changed codes to positive values since they aren’t shared with other codes. ---------------- Date: 2015-02-23 Author: Sonny Jeon Subject: Fixed config.h to Grbl release defaults. - REPORT_GUI_MODE was accidentally enabled, when it shouldn’t have. ---------------- Date: 2015-02-23 Author: Sonny Jeon Subject: New configuration options. - New configuration option at compile-time: - Force alarm upon power-up or hard reset. When homing is enabled, this is already the default behavior. This simply forces this all of the time. - GUI reporting mode. Removes most human-readable strings that GUIs don’t need. This saves nearly 2KB in flash space that can be used for other features. - Hard limit force state check: In the hard limit pin change ISR, Grbl by default sets the hard limit alarm upon any pin change to guarantee the alarm is set. If this option is set, it’ll check the state within the ISR, but can’t guarantee the pin will be read correctly if the switch is bouncing. This option makes hard limit behavior a little less annoying if you have a good buffered switch circuit that removes bouncing and electronic noise. - Software debounce bug fix. It was reading the pin incorrectly for the setting. - Re-factored some of the ‘$’ settings code. ---------------- Date: 2015-02-15 Author: Sonny Jeon Subject: Improved homing limit search handling. - Instead of a single overall max travel for a search distance for the homing limit switches. The homing cycle now applies the max travel of each axis to the search target. Generally makes more sense this way and saved more than a 100bytes of flash too. ---------------- Date: 2015-02-15 Author: Sonny Jeon Subject: Homing alarm upon no switch. Licensing update. - Homing cycle failure reports alarm feedback when the homing cycle is exited via a reset, interrupted by a safety door switch, or does not find the limit switch. - Homing cycle bug fix when not finding the limit switch. It would just idle before, but now will exit with an alarm. - Licensing update. Corrected licensing according to lawyer recommendations. Removed references to other Grbl versions. ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Merge pull request #593 from poelstra/fix_makefile_deps Fix generating header dependencies, merge with 'normal' compile, force r... ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Updated README with new logo sized for github. ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Doc re-org. New Grbl Logos! ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Merge pull request #591 from EliteEng/edge Safety Door Update for Mega2560 ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Merge pull request #592 from poelstra/fix_softlimit Fix EXEC_ALARM_* flags: soft limit would lead to hard limit error. ---------------- Date: 2015-02-13 Author: Sonny Jeon Subject: Merge pull request #594 from poelstra/fix_sim_build Fix function signature of print_uint32_base10(), necessary for compiling simulator. ---------------- Date: 2015-02-13 Author: Martin Poelstra Subject: Fix function signature of print_uint32_base10(), necessary for compiling simulator. ---------------- Date: 2015-02-13 Author: Martin Poelstra Subject: Fix generating header dependencies, merge with 'normal' compile, force recompile when files are removed. ---------------- Date: 2015-02-13 Author: Martin Poelstra Subject: Fix EXEC_ALARM_* flags: soft limit would lead to hard limit error. ---------------- Date: 2015-02-13 Author: Rob Brown Subject: Safety Door Update for Mega2560 ---------------- Date: 2015-02-11 Author: Sonny Jeon Subject: Overhauled state machine. New safety door feature. - Overhauled the state machine and cleaned up its overall operation. This involved creating a new ‘suspend’ state for what all external commands, except real-time commands, are ignored. All hold type states enter this suspend state. - Removed ‘auto cycle start’ setting from Grbl. This was not used by users in its intended way and is somewhat redundant, as GUI manage the cycle start by streaming. It also muddled up how Grbl should interpret how and when to execute a g-code block. Removing it made everything much much simpler. - Fixed a program pause bug when used with other buffer_sync commands. - New safety door feature for OEMs. Immediately forces a feed hold and then de-energizes the machine. Resuming is blocked until the door is closed. When it is, it re-energizes the system and then resumes on the normal toolpath. - Safety door input pin is optional and uses the feed hold pin on A1. Enabled by config.h define. - Spindle and coolant re-energizing upon a safety door resume has a programmable delay time to allow for complete spin up to rpm and turning on the coolant before resuming motion. - Safety door-style feed holds can be used instead of regular feed hold (doesn’t de-energize the machine) with a ‘@‘ character. If the safety door input pin is not enabled, the system can be resumed at any time. ---------------- Date: 2015-02-10 Author: Sonny Jeon Subject: Git fix for empty directory. Makefile updated. - ‘build’ directory was not being synced by git because it was empty. Added a .gitignore file in the ‘build’ directory to force git to sync it but keep it empty. - Updated the Makefile to not erase the .gitignore. ---------------- Date: 2015-02-10 Author: Sonny Jeon Subject: File re-organization. New Makefile. - Re-organized source code files into a ‘grbl’ directory to lessen one step in compiling Grbl through the Arduino IDE. - Added an ‘examples’ directory with an upload .INO sketch to further simplify compiling and uploading Grbl via the Arduino IDE. - Updated the Makefile with regard to the source code no longer being in the root directory. All files generated by compiling is placed in a separate ‘build’ directory to keep things tidy. The makefile should operate in the same way as it did before. ---------------- Date: 2015-02-10 Author: Sonny Jeon Subject: Bug fix for certain motions. Re-org of includes. - Critical bug fix for diagonal motions that continue on the same direction or return in the exact opposite direction. This issue could cause Grbl to crash intermittently due to a numerical round-off error. Grbl versions prior to v0.9g shouldn’t have this issue. - Reorganized all of the includes used by Grbl. Centralized it into a single “grbl.h” include. This will help simplify the compiling and uploading process through the Arduino IDE. - Added an example .INO file for users to simply open and run when compiling and uploading through the IDE. More to come later. ---------------- Date: 2015-02-06 Author: Sonny Jeon Subject: Limit/control pin state reporting option - As a setup feature, users can compile-in input pin status reporting. Doesn’t do anything special, just prints the binary for the port. 0’s and 1’s indicate low and high signals on the pins. It’s a bit cryptic right now, but it’s just a start. - Added a max step rate check when writing step/mm and max rate settings. Should help avoid people misdiagnosing problems associated with going over the 30kHz step rate limit. Right now not enabled. Takes up over 100k of flash. Need that room for other things right now. ---------------- Date: 2015-02-04 Author: Sonny Jeon Subject: Rare planner bug fix and added simulator defaults. - Planner bug when moving along a diagonal back and forth on the same path. Rare for the fact that most CAM programs don’t program this type of motion, neither does jogging. Fixed in this update. - Added grbl_sim defaults for testing purposes. ---------------- Date: 2015-01-17 Author: Sonny Jeon Subject: Fully configurable pins for NO or NC switches. - All pins, which include limits, control command, and probe pins, can now all be configured to trigger as active-low or active-high and whether the pin has its internal pull-up resistor enabled. This should allow for just about all types of NO and NC switch configurations. - The probe pin invert setting hasn’t been added to the Grbl settings, like the others, and will have to wait until v1.0. But for now, it’s available as a compile-time option in config.h. - Fixed a variable spindle bug. ---------------- Date: 2015-01-14 Author: Sonny Jeon Subject: Lot of refactoring for the future. CoreXY support. - Rudimentary CoreXY kinematics support. Didn’t test, but homing and feed holds should work. See config.h. Please report successes and issues as we find bugs. - G40 (disable cutter comp) is now “supported”. Meaning that Grbl will no longer issue an error when typically sent in g-code program header. - Refactored coolant and spindle state setting into separate functions for future features. - Configuration option for fixing homing behavior when there are two limit switches on the same axis sharing an input pin. - Created a new “grbl.h” that will eventually be used as the main include file for Grbl. Also will help simply uploading through the Arduino IDE - Separated out the alarms execution flags from the realtime (used be called runtime) execution flag variable. Now reports exactly what caused the alarm. Expandable for new alarms later on. - Refactored the homing cycle to support CoreXY. - Applied @EliteEng updates to Mega2560 support. Some pins were reconfigured. - Created a central step to position and vice versa function. Needed for non-traditional cartesian machines. Should make it easier later. - Removed the new CPU map for the Uno. No longer going to used. There will be only one configuration to keep things uniform. ---------------- Date: 2014-11-05 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2014-10-29 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2014-10-28 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2014-10-28 Author: Sonny Jeon Subject: Update README.md ---------------- Date: 2014-10-01 Author: Sonny Jeon Subject: Updated variable spindle and new probing. Minor bug fixes. - Minor bug fix for variable spindle PWM output. Values smaller than the minimum RPM for the spindle would overflow the PWM value. Thanks Rob! - Created an optional minimum spindle PWM low-mark value as a compile-time option. This is for special circumstances when the PWM has to be at a certain level to be read by the spindle controller. - Refactored the new probing commands (G38.3, G38.4, G38.5) code to work better with the rest of Grbl’s systems. - Refactored mc_probe() and mc_arc() to accept the mode of the command, i.e. clockwise vs counter, toward vs away, etc. This is to make these functions independent of gcode state variables. - Removed the pull off motion in the probing cycle. This is not an official operation and was added for user simplicity, but wrongly did so. So bye bye. - Created a configure probe invert mask function to handle the different probe pin setting and probing cycle modes with a single mask. - Minor bug fix with reporting motion modes via $G. G38.2 wasn’t showing up. It now does, along with the other new probing commands. - Refactored some of the new pin configurations for the future of Grbl. - ---------------- Date: 2014-09-25 Author: Sonny Jeon Subject: Merge pull request #491 from tmpvar/G38.2+ G38.2+ ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: report probe_succeeded with probe status ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: add probe_finalize to keep things DRY this allows the PRB report to be valid when in "no errors" mode and the probe fails ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: hop over probe pull-off sequence after probe miss and while "no errors" is enabled (G38.3, G38.5) ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: add/install probe_errors_enabled in mc_probe_cycle ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: bump mantissa to uint16_t to enable G38.5 ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: test only for & PROBE_ACTIVE ---------------- Date: 2014-09-22 Author: Elijah Insua Subject: cleanup global var and push probe mode into probe_get_state ---------------- Date: 2014-09-20 Author: Sonny Jeon Subject: Edit hard limit check at start of homing cycle ---------------- Date: 2014-09-20 Author: Sonny Jeon Subject: Merge pull request #494 from ashelly/homing-alarm Alarm if limits engaged on homing start. ---------------- Date: 2014-09-20 Author: Sonny Jeon Subject: Merge pull request #493 from alpharesearch/edge If variable spindle is defined print S value via $G command. ---------------- Date: 2014-09-20 Author: Sonny Jeon Subject: Minor settings number overflow bug fix. - The `x` in `$x=val` would overflow when a value larger than 255 was entered and passed to Grbl. This resulted with unintended parameters being set by the overflow value. To fix, simply check for values larger than 255 and error out. ---------------- Date: 2014-09-17 Author: ashelly Subject: No false alarm if other bits in port are set. ---------------- Date: 2014-09-17 Author: Markus Schulz Subject: If variable spindle is defined print S value via $G command. ---------------- Date: 2014-09-14 Author: Elijah Insua Subject: utilize MOTION_MODE_PROBE_NO_ERROR ---------------- Date: 2014-09-14 Author: Elijah Insua Subject: install G38.{3,4,5} ---------------- Date: 2014-09-14 Author: Elijah Insua Subject: add MOTION_MODE_PROBE_NO_ERROR ---------------- Date: 2014-09-08 Author: ashelly Subject: Alarm if limits engaged on homing