Z homing isn't working properly. When I click on the Z home button the printer returns to X0, Y0 then homes the z axis. If I type "G28 Z" into the command line the same thing happens.
I have the latest stable build of Octoprint 1.3.10 and this feature was working fine on the previous build.
What printer are you using?
I'm using the Lulzbot Taz 5
LOG FILE:
2019-01-17 22:22:49,784 - octoprint.startup - INFO - ******************************************************************************
2019-01-17 22:22:49,786 - octoprint.startup - INFO - Starting OctoPrint 1.3.10
2019-01-17 22:22:49,786 - octoprint.startup - INFO - ******************************************************************************
2019-01-17 22:22:49,890 - octoprint.util.connectivity_checker - INFO - Connectivity changed from offline to online
2019-01-17 22:22:51,033 - octoprint.startup - INFO - Blacklist processing done, adding 1 blacklisted plugin versions: roomtemp (any)
2019-01-17 22:22:51,073 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2019-01-17 22:22:52,931 - octoprint.plugin.core - INFO - Found 20 plugin(s) providing 20 mixin implementations, 26 hook handlers
2019-01-17 22:22:53,028 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2019-01-17 22:22:53,056 - octoprint.server - INFO - Intermediary server started
2019-01-17 22:22:53,057 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2019-01-17 22:22:53,395 - octoprint.plugin.core - INFO - Found 20 plugin(s) providing 20 mixin implementations, 26 hook handlers
2019-01-17 22:22:53,428 - octoprint.filemanager.storage - INFO - Initializing the file metadata for /home/pi/.octoprint/uploads...
2019-01-17 22:22:54,110 - octoprint.filemanager.storage - INFO - ... file metadata for /home/pi/.octoprint/uploads initialized successfully.
2019-01-17 22:22:54,129 - octoprint.plugins.tracking - INFO - Initialized anonymous tracking
2019-01-17 22:22:54,233 - octoprint.plugins.softwareupdate - INFO - Loaded version cache from disk
2019-01-17 22:22:56,468 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python -m pip" as command to invoke pip
2019-01-17 22:22:58,688 - octoprint.util.pip - INFO - Version of pip is 9.0.1
2019-01-17 22:22:58,689 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2019-01-17 22:22:58,690 - octoprint.util.pip - INFO - ==> pip ok -> yes
2019-01-17 22:22:58,696 - octoprint.plugin.core - INFO - Initialized 20 plugin implementation(s)
2019-01-17 22:22:58,711 - octoprint.plugin.core - INFO - 20 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/announcements
| Anonymous Usage Tracking (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/tracking
| Application Keys Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/appkeys
| Backup & Restore (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/backup
| Core Wizard (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/corewizard
| CuraEngine (<= 15.04) (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/cura
| Discovery (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/discovery
| DisplayLayerProgress Plugin (1.8.0) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_DisplayLayerProgress
| Firmware Updater (1.1.0) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_firmwareupdater
| Force Login (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/forcelogin
| HeaterTimeout (0.0.1) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_HeaterTimeout
| Logging (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/logging
| Navbar Temperature Plugin (0.11) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_navbartemp
| Pi Support Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pi_support
| Plugin Manager (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager
| Preheat Button (0.2.0) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_preheat
| Printer Safety Check (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/printer_safety_check
| Software Update (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/virtual_printer
2019-01-17 22:22:58,725 - octoprint.environment - INFO - Detected environment is Python 2.7.9 under Linux (linux2). Details:
| hardware:
| cores: 4
| freq: 1200.0
| ram: 901689344
| os:
| id: linux
| platform: linux2
| plugins:
| pi_support:
| model: Raspberry Pi 3 Model B Rev 1.2
| octopi_version: 0.14.0
| python:
| pip: 9.0.1
| version: 2.7.9
| virtualenv: /home/pi/oprint
2019-01-17 22:22:58,736 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/webassets...
2019-01-17 22:22:58,762 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/.webassets-cache...
2019-01-17 22:22:58,981 - octoprint.server - INFO - Shutting down intermediary server...
2019-01-17 22:22:59,032 - octoprint.server - INFO - Intermediary server shut down
2019-01-17 22:22:59,035 - octoprint.events - INFO - Processing startup event, this is our first event
2019-01-17 22:22:59,035 - octoprint.events - INFO - Adding 1 events to queue that were held back before startup event
2019-01-17 22:22:59,037 - octoprint.filemanager - INFO - Adding backlog items from all storage types to analysis queue...
2019-01-17 22:23:00,298 - octoprint.util.comm - INFO - Changing monitoring state from "Offline" to "Opening serial port"
2019-01-17 22:23:00,326 - octoprint.util.comm - INFO - Changing monitoring state from "Opening serial port" to "Detecting baudrate"
2019-01-17 22:23:00,562 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from https://plugins.octoprint.org/plugins.json
2019-01-17 22:23:00,578 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _http._tcp
2019-01-17 22:23:00,590 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _octoprint._tcp
2019-01-17 22:23:00,627 - octoprint.filemanager - INFO - Added 0 items from storage type "local" to analysis queue
2019-01-17 22:23:00,631 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance on octopi for SSDP
2019-01-17 22:23:00,700 - octoprint.server - INFO - Listening on http://127.0.0.1:5000
2019-01-17 22:23:00,702 - octoprint.plugins.HeaterTimeout - INFO - Starting up...
2019-01-17 22:23:00,736 - octoprint.plugins.navbartemp - INFO - Broadcom detected
2019-01-17 22:23:00,746 - octoprint.plugins.navbartemp - INFO - Checking SoC internal temperature
2019-01-17 22:23:01,190 - octoprint.server.util.sockjs - INFO - New connection from client: 10.0.0.19
2019-01-17 22:23:01,363 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:01,384 - octoprint.server.util.flask - INFO - Passively logging in user lulzbot from 10.0.0.19
2019-01-17 22:23:01,403 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:01,406 - octoprint.server.util.sockjs - INFO - User lulzbot logged in on the socket from client 10.0.0.19
2019-01-17 22:23:02,201 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from https://plugins.octoprint.org/plugins.json
2019-01-17 22:23:02,410 - octoprint.plugins.pluginmanager - INFO - Loaded plugin notices data from https://plugins.octoprint.org/notices.json
2019-01-17 22:23:02,472 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:03,193 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python -m pip" as command to invoke pip
2019-01-17 22:23:03,195 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2019-01-17 22:23:03,195 - octoprint.util.pip - INFO - ==> pip ok -> yes
2019-01-17 22:23:03,210 - octoprint.plugins.pluginmanager - INFO - Loaded plugin notices data from https://plugins.octoprint.org/notices.json
2019-01-17 22:23:03,265 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://10.0.0.179/'}
2019-01-17 22:23:03,481 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:04,276 - octoprint.plugins.tracking - INFO - Sent tracking event startup, payload: {'python': '2.7.9', 'ram': 901689344, 'octopi_version': '0.14.0', 'version': u'1.3.10', 'pip': '9.0.1', 'cores': 4, 'freq': 1200.0, 'pi_model': 'Raspberry Pi 3 Model B Rev 1.2', 'os': 'linux'}
2019-01-17 22:23:04,593 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:05,809 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:06,868 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:07,886 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:08,893 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:09,184 - octoprint.util.comm - INFO - Changing monitoring state from "Detecting baudrate" to "Operational"
2019-01-17 22:23:09,191 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-01-17 22:23:09,195 - octoprint.util.comm - INFO - Got a resend request for line 1 which is also our current line. It looks like we just handled a reset and this is a left over of this
2019-01-17 22:23:09,212 - octoprint.plugins.firmwareupdater - INFO - Got CONNECTED event
2019-01-17 22:23:09,215 - octoprint.plugins.firmwareupdater - INFO - Run postflash flag is not set
2019-01-17 22:23:09,254 - octoprint.util.comm - INFO - Printer reports firmware name "Marlin"
2019-01-17 22:23:09,265 - octoprint.util.comm - INFO - Firmware states that it supports temperature autoreporting
2019-01-17 22:23:09,277 - octoprint.util.comm - INFO - Firmware states that it supports emergency GCODEs M108 and M410 to be sent without waiting for an acknowledgement first
2019-01-17 22:23:10,265 - octoprint.plugins.tracking - INFO - Sent tracking event printer_connected, payload: {u'printer_baudrate': 0, u'printer_port': '/dev/ttyACM0', 'firmware_name': 'Marlin'}
2019-01-17 22:23:16,049 - octoprint.server.preemptive_cache - INFO - ... done in 12.78s
2019-01-17 22:23:30,834 - octoprint.plugins.navbartemp - INFO - Checking SoC internal temperature
2019-01-17 22:24:00,878 - octoprint.plugins.navbartemp - INFO - Checking SoC internal temperature
2019-01-17 22:24:30,922 - octoprint.plugins.navbartemp - INFO - Checking SoC internal temperature
2019-01-17 22:25:00,969 - octoprint.plugins.navbartemp - INFO - Checking SoC internal temperature
serial.log
2019-01-17 22:23:00,091 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2019-01-17 22:28:54,979 - Enabling serial logging
2019-01-17 22:28:55,796 - Recv: T:16.43 /0.00 B:17.00 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:28:57,553 - Recv: T:16.52 /0.00 B:17.00 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:28:59,552 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:01,506 - Send: G91
2019-01-17 22:29:01,516 - Recv: ok P15 B9
2019-01-17 22:29:01,527 - Send: G1 Y100 F6000
2019-01-17 22:29:01,537 - Send: G90
2019-01-17 22:29:01,539 - Recv: ok P13 B9
2019-01-17 22:29:01,549 - Recv: ok P13 B9
2019-01-17 22:29:01,558 - Recv: T:16.47 /0.00 B:17.03 /0.00 T0:16.47 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:03,520 - Send: G91
2019-01-17 22:29:03,543 - Send: G1 X100 F6000
2019-01-17 22:29:03,545 - Recv: ok P15 B9
2019-01-17 22:29:03,550 - Send: G90
2019-01-17 22:29:03,556 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:03,562 - Recv: ok P13 B9
2019-01-17 22:29:03,564 - Recv: ok P13 B9
2019-01-17 22:29:05,554 - Recv: T:16.43 /0.00 B:17.10 /0.00 T0:16.43 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:07,568 - Recv: T:16.47 /0.00 B:17.03 /0.00 T0:16.47 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:08,299 - Send: G91
2019-01-17 22:29:08,319 - Recv: ok P15 B9
2019-01-17 22:29:08,329 - Send: G1 Z10 F200
2019-01-17 22:29:08,335 - Send: G90
2019-01-17 22:29:08,341 - Recv: ok P13 B9
2019-01-17 22:29:08,344 - Recv: ok P13 B9
2019-01-17 22:29:09,568 - Recv: T:16.47 /0.00 B:17.10 /0.00 T0:16.47 /0.00 T1:17.01 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:11,566 - Recv: T:16.43 /0.00 B:17.10 /0.00 T0:16.43 /0.00 T1:16.92 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:12,520 - Send: G91
2019-01-17 22:29:12,542 - Recv: ok P15 B9
2019-01-17 22:29:12,547 - Send: G28 Z0
2019-01-17 22:29:12,554 - Send: G90
2019-01-17 22:29:12,560 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:12,565 - Recv: echo:Home XY first
2019-01-17 22:29:12,569 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:12,571 - Recv: X:110.00 Y:110.00 Z:10.00 E:0.00 Count X:11055 Y:11055 Z:16000
2019-01-17 22:29:12,573 - Recv: ok P15 B9
2019-01-17 22:29:12,576 - Recv: ok P15 B9
2019-01-17 22:29:13,565 - Recv: T:16.47 /0.00 B:17.07 /0.00 T0:16.47 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:15,568 - Recv: T:16.52 /0.00 B:17.03 /0.00 T0:16.52 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:16,993 - Send: G91
2019-01-17 22:29:17,001 - Recv: ok P15 B9
2019-01-17 22:29:17,022 - Send: G28 Z0
2019-01-17 22:29:17,028 - Send: G90
2019-01-17 22:29:17,033 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:17,035 - Recv: echo:Home XY first
2019-01-17 22:29:17,037 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:17,040 - Recv: X:110.00 Y:110.00 Z:10.00 E:0.00 Count X:11055 Y:11055 Z:16000
2019-01-17 22:29:17,047 - Recv: ok P15 B9
2019-01-17 22:29:17,052 - Recv: ok P15 B9
2019-01-17 22:29:17,567 - Recv: T:16.47 /0.00 B:17.00 /0.00 T0:16.47 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:19,567 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:19,615 - Send: G91
2019-01-17 22:29:19,624 - Send: G28 X0 Y0
2019-01-17 22:29:19,630 - Send: G90
2019-01-17 22:29:19,631 - Recv: ok P15 B9
2019-01-17 22:29:19,634 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:21,569 - Recv: T:16.52 /0.00 B:17.03 /0.00 T0:16.52 /0.00 T1:17.01 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:22,806 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:22,811 - Recv: X:-2.00 Y:0.00 Z:10.00 E:0.00 Count X:-201 Y:0 Z:16000
2019-01-17 22:29:22,815 - Recv: ok P15 B8
2019-01-17 22:29:22,824 - Recv: ok P15 B9
2019-01-17 22:29:23,568 - Recv: T:16.47 /0.00 B:17.00 /0.00 T0:16.47 /0.00 T1:17.01 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:25,567 - Recv: T:16.47 /0.00 B:17.14 /0.00 T0:16.47 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:27,525 - Send: G91
2019-01-17 22:29:27,542 - Send: G28 Z0
2019-01-17 22:29:27,546 - Recv: ok P15 B9
2019-01-17 22:29:27,550 - Send: G90
2019-01-17 22:29:27,554 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:27,565 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:29,569 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:31,568 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:33,567 - Recv: T:16.43 /0.00 B:17.00 /0.00 T0:16.43 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:34,593 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:34,594 - Recv: X:10.00 Y:10.00 Z:0.00 E:0.00 Count X:1005 Y:1005 Z:0
2019-01-17 22:29:34,605 - Recv: ok P15 B8
2019-01-17 22:29:34,611 - Recv: ok P15 B9
2019-01-17 22:29:35,566 - Recv: T:16.52 /0.00 B:17.03 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:35,632 - Send: G91
2019-01-17 22:29:35,636 - Recv: ok P15 B9
2019-01-17 22:29:35,645 - Send: G1 Y100 F6000
2019-01-17 22:29:35,655 - Recv: ok P13 B9
2019-01-17 22:29:35,660 - Send: G90
2019-01-17 22:29:35,670 - Recv: ok P13 B9
2019-01-17 22:29:36,532 - Send: G91
2019-01-17 22:29:36,542 - Recv: ok P14 B9
2019-01-17 22:29:36,554 - Send: G1 X100 F6000
2019-01-17 22:29:36,558 - Send: G90
2019-01-17 22:29:36,565 - Recv: ok P13 B9
2019-01-17 22:29:36,567 - Recv: ok P13 B9
2019-01-17 22:29:37,568 - Recv: T:16.47 /0.00 B:17.03 /0.00 T0:16.47 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:39,568 - Recv: T:16.47 /0.00 B:17.03 /0.00 T0:16.47 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:40,903 - Send: G91
2019-01-17 22:29:40,910 - Recv: ok P15 B9
2019-01-17 22:29:40,928 - Send: G28 Z0
2019-01-17 22:29:40,935 - Send: G90
2019-01-17 22:29:40,941 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:41,570 - Recv: T:16.52 /0.00 B:17.03 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:43,570 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:45,568 - Recv: T:16.52 /0.00 B:17.03 /0.00 T0:16.52 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:45,880 - Recv: echo:Active Extruder: 0
2019-01-17 22:29:45,884 - Recv: X:10.00 Y:10.00 Z:0.00 E:0.00 Count X:1005 Y:1005 Z:0
2019-01-17 22:29:45,886 - Recv: ok P15 B8
2019-01-17 22:29:45,888 - Recv: ok P15 B9
2019-01-17 22:29:47,576 - Recv: T:16.47 /0.00 B:17.10 /0.00 T0:16.47 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:49,574 - Recv: T:16.47 /0.00 B:17.03 /0.00 T0:16.47 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:51,578 - Recv: T:16.43 /0.00 B:17.14 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:53,576 - Recv: T:16.47 /0.00 B:17.17 /0.00 T0:16.47 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:55,575 - Recv: T:16.43 /0.00 B:17.14 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:57,578 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:29:59,577 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:01,575 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:03,575 - Recv: T:16.43 /0.00 B:17.14 /0.00 T0:16.43 /0.00 T1:17.14 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:05,577 - Recv: T:16.52 /0.00 B:17.00 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:07,577 - Recv: T:16.43 /0.00 B:17.14 /0.00 T0:16.43 /0.00 T1:17.05 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:09,575 - Recv: T:16.43 /0.00 B:17.07 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:11,575 - Recv: T:16.52 /0.00 B:17.10 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:13,578 - Recv: T:16.52 /0.00 B:17.14 /0.00 T0:16.52 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
2019-01-17 22:30:15,577 - Recv: T:16.43 /0.00 B:17.03 /0.00 T0:16.43 /0.00 T1:17.10 /0.00 @:0 B@:0 @0:0 @1:0
I don't see anything unusual in the serial.log
I send G28 Z0 and while the Z axis should be the only one moving, it is not, X & Y homes, and then Z homes.
maybe it is something wrong with the GRBL I have loaded onto the lulzbot?
I just tried updating the Marlin firmware via the Cura app. And still having the problem. It seems like it is NOT an octoprint problem, as the same thing is happening in CURA Lulzbot addition as well as the latest nightly build of Universal Gcode Sender. Guess I'll dig around on the Lulzbot forums. Thanks for your time.
It is up to the firmware to turn something like G28 Z0 into "only home the z axis". As you correctly deducted, it doesn't. If it doesn't, there's nothing OctoPrint can do about it.
I wanted to take a look at the logs to see if OctoPrint is sending the correct thing here, which it does. So I come to the same conclusion as you - it's something up with firmware and/or printer.
I opened up Cura Lulzbot edition and connected it directly to my printer and re-flashed with the default Marlin firmware v 1.0.0.2 and now everything is working as it should! phew.