---------------- Date: 2015-09-30 Author: Sonny Jeon Subject: Bug fixes. - G38.x was not printing correctly in the $G g-code state reports. Now fixed. - When investigating the above issue, it was noticed that G38.x wouldn’t show at all, but instead a G0 would be printed. This was unlike the v0.9j master build. It turned out volatile variables do not like to be defined inside a C struct. These are undefined on how to be handled. Once pulled out, all weird issues went away. - Also changed two ‘sizeof()’ statements in the mc_probe() and probe_state_monitor() functions to be more robust later on. - Updated the commit logs to individual files for each minor release. Forgot to update the generating script to account for this. ---------------- Date: 2015-09-30 Author: Sonny Jeon Subject: Minor bug fixes. - G38.x was not printing correctly in the $G g-code state reports. Now fixed. - Potential bug regarding volatile variables inside a struct. It has never been a problem in v0.9, but ran into this during v1.0 development. Just to be safe, the fixes are applied here. - Updated pre-built firmwares with these two bug fixes. ---------------- Date: 2015-09-24 Author: Sonny Jeon Subject: Updated G28/G30 intermediate motion behavior. - G28 and G30’s behavior has been updated from the old NIST g-code standard to LinuxCNC’s. Previously when an intermediate motion was programmed, the NIST standard would move all axes to the final G28/30 stored coordinates. LinuxCNC states it only moves the axes specified in the command. For example, suppose G28’s stored position is (x,y,z) = (1,2,3) for simplicity, and we want to do an automated z-axis tool retraction and then park at the x,y location. `G28 G91 Z5` will first move the Z axis 5mm(or inches) up, then move Z to position 3 in machine coordinates. Next, the command `G28 G91 X0 Y0` would skip the intermediate move since distance is zero, but then move only the x and y axes to machine coordinates 1 and 2, respectively. The z-axis wouldn’t move in this case, since it wasn’t specified. This change is intended to make Grbl more LinuxCNC compatible while making commands, like the shown tool retraction, much easier to implement. ---------------- Date: 2015-09-05 Author: Sonny Jeon Subject: Parking motion bug fix. - Parking motion would intermittently complete the queued tool path upon resuming in certain scenarios. Now fixed. ---------------- Date: 2015-08-29 Author: Sonny Jeon Subject: Optional line number reporting bug fix. - Fixed a bug where it would not compile when USE_LINE_NUMBERS was enabled. ---------------- Date: 2015-08-27 Author: Sonny Jeon Subject: Update README ---------------- Date: 2015-08-27 Author: Sonny Jeon Subject: v1.0 Beta Release. - Tons of new stuff in this release, which is fairly stable and well tested. However, much more is coming soon! - Real-time parking motion with safety door. When this compile option is enabled, an opened safety door will cause Grbl to automatically feed hold, retract, de-energize the spindle/coolant, and parks near Z max. After the door is closed and resume is commanded, this reverses and the program continues as if nothing happened. This is also highly configurable. See config.h for details. - New spindle max and min rpm ‘$’ settings! This has been requested often. Grbl will output 5V when commanded to turn on the spindle at its max rpm, and 0.02V with min rpm. The voltage and the rpm range are linear to each other. This should help users tweak their settings to get close to true rpm’s. - If the new max rpm ‘$’ setting is set = 0 or less than min rpm, the spindle speed PWM pin will act like a regular on/off spindle enable pin. On pin D11. - BEWARE: Your old EEPROM settings will be wiped! The new spindle rpm settings require a new settings version, so Grbl will automatically wipe and restore the EEPROM with the new defaults. - Control pin can now be inverted individually with a CONTROL_INVERT_MASK in the cpu_map header file. Not typical for users to need this, but handy to have. - Fixed bug when Grbl receive too many characters in a line and overflows. Previously it would respond with an error per overflow character and another acknowledge upon an EOL character. This broke the streaming protocol. Now fixed to only respond with an error after an EOL character. - Fixed a bug with the safety door during an ALARM mode. You now can’t home or unlock the axes until the safety door has been closed. This is for safety reasons (obviously.) - Tweaked some the Mega2560 cpu_map settings . Increased segment buffer size and fixed the spindle PWM settings to output at a higher PWM frequency. - Generalized the delay function used by G4 delay for use by parking motion. Allows non-blocking status reports and real-time control during re-energizing of the spindle and coolant. - Added spindle rpm max and min defaults to default.h files. - Added a new print float for rpm values.