Community Firmware v6 provisional release notes

[Sebazzz]

First of all I want to thank everyone for the support and positive reactions we got on the 5 beta release of the community firmware. All the testing and feedback has made this firmware better and better. Thank you for testing and sending your feedback. Months of work have come to an end with release 6 of the community firmware.

TLDR: Added PID tuning, interactive e-steps calibration, overriding slicer retractions, custom ABL probing settings, many more configuration knobs and stability improvements.

Hardware support

The CR-6 Community Firmware supports the following hardware configurations:

• Creality CR-6 SE with v4.5.2 and v4.5.3 motherboard
• Creality CR-6 MAX
• Creality CR-6 SE with BigTreeTech SKR CR-6 board and:
  • BTT TFT touch screen
  • Stock Creality touch screen

Table of contents

• News
• New features added in Release 6
• New features added (in previous releases)
• Detailed changes
• Comparison with Creality stock firmware
• Known issues
• Flashing instructions
• Files listing
• FAQ
• Reporting issues
• Contributing

News

• Jim of the The Edge of Tech has made an instruction video on how to flash the community firmware
• @Sebazzz was recently interviewed on The Real Sam Prentice channel

New features added in Release 6

All hardware configurations

Allow you to configure if you want to trade better bed leveling and Z-offset accuracy for speed, and allow you to set the preheat nozzle and bed temperature (issue #106 )

On the CR-6 stock display. The second from bottom option is used to skip waiting for temperatures to stabilize if you are using the recommended start gcode for this firmware.

On MarlinUI (1)

On MarlinUI (2)

Allow overriding slicer retractions and real-time retraction tuning (issue #157)

CR-6 stock touch screen

Add linear advance tuning (issue #158)

Add hot-end PID tuning (issue #60)

Add interactive e-step calibration (issue #57)

Add bed leveling point visualization (issue #148)

In addition, some people, regardless of firmware, still experience issues. For those people, you can now manually level your bed (issue #209):

Tap a point, enter a new mesh value, and it will automatically save. CR-6 SE users only.

Add built-in experimental mesh validation pattern print (issue #196)

Circles on every probe point

Screen to run the calibration pattern

Add inputs to completely control the motion parameters of the printer (issue #189)

Movement settings can be changed per axis

There are also advanced settings available, you can tweak them if you like

Add some additional misc settings for the filament sensor or controlling PLR (issue #193)

Some of you don't have a working filament sensor, so... disable it here (thanks to @ztakis for doing the graphics)

Add M73 R support which supporting Octoprint plugins or slicers like PrusaSlicer can use to emit a time estimate (issue #208) - check here for a full guide on how to activate this feature

Time remaining shown - you now have your M117 status line available for other information, like layer height

Corresponding setting in PrusaSlicer - it will also be possible in Cura 4.9 when it releases

@ztakis gave the printing screen a refresh, by reorganizing the status variables and adding the Z-offset back (issue #115)

New features added in previous releases

Safety

Important safety feature: We now enabled the watchdog for STM32F1 processors - if Marlin would freeze from some reason (like due to SD card issues) the printer is automatically reset and the heaters are disabled - this feature is not enabled on the stock Creality or BTT firmware

User interface

This release features an entirely refreshed user interface by @grobux! Improved font spacing, improved graphics. JPEG artifacts be gone!

In addition we implemented toggles allowing you to decide if you want to hear sounds from the touch screen (or not), and if you like the touch screen display to dim to 10% on idle (30 seconds currently).

We've also implemented that you can tune the flow rate (the amount of filament extruded) during the print from the "tuning" screen. Very useful when tuning in new filaments. You can also control and review the fan speed percentage from the tuning screen.

You can also now quickly set the bed and hot-end temperature by tapping the temperature in the footer.

On the print screen we've added displays for the fan speed, flow rate, and X/Y/Z axis positions:

On this screen you can also set the hotend and bed temperature by directly tapping the numbers.

SD card folder support

We support navigation through folders on your SD card. No longer are you limited to 5 pages of gcode files. You can organise your SD card in folders.

Hardware support

• Support for Creality v4.5.2 and the new v4.5.3 motherboards. See the FAQ section to know which board you have.
• Support for the BigTreeTech SKR CR-6 board, both with BTT TFT and stock Creality DWIN TFT
• Support for the Creality CR-6 MAX

Octoprint

We have improved Octoprint support. We show the printer status messages also on the home screen.

The filament sensor is working and Octoprint acts on it - it pauses the print. Make sure you have the correct gcode in Octoprint so it parks the nozzle.

In addition when an Octoprint print starts we automatically show the "printing" screen with full access to all details and tuning options. You can also set the print progress using the the detailed progress plugin.

Reliability

• Rebased on latest Marlin bugfix-2.0.x sources which will eventually become Marlin v2.0.7.3
• Increase bed leveling and homing (Z-offset) accuracy
  • We do this by preheating before probing and turning off heaters when probing so electrical interference when reading the strain gauge is minimized
  • Homing and probing is perceived slower - but in terms of print time this is just a fraction of the time
  • By default we probe at 120C/50C - but if you have preheated your printer to a higher temperature, then that temperature is kept
  • You can tweak this behaviour from the leveling settings menu.
• Further tinkering with the movement settings for optimum performance
• Again for Octoprint users: filament sensor is supported

Enhancements

• Return nozzle to safe area after leveling (issue Return Print head to safe area after bed levelling #143)
• Enable usage of imperial (inch) units (issue [FR] Enable G20/G21 for Inch units. #149)
• First heat the nozzle and bed before resuming from power loss recovery (issue [FR] Enable G20/G21 for Inch units. #149)
• Enable Octoprint Meatpack support - gcode compression
• Set hot-end heater timeout from 5 to 30 minutes (issue Make preheat timeout and pause while printing heater timeout user configurable #116 and issue Heater Timeout between touchscreen and octoprint #150)
• Add progress to filament load/unload menu (issue Can't manually retract or extrude  #125)
• Add mesh validation pattern (issue [FR] G26 mesh validation pattern #196)

CR-6 stock touch screen only

• Don't cool down when leaving the leveling menu (issue Going to the leveling menu and then backing out resets the extrude and bed temperatures #152)
• Document touch screen configuration flag in Configuration.h (issue DGUS_LCD_UI_CREALITY_TOUCH is ambiguous #139)
• Add filament runout and PLR settings (issue [FR] Implement settings for filament runout and PLR #193)
• Add more tuning of axis settings (issue [FR] Allow more tuning of axis settings #189)
• Implement fade height settings (issue Implement fade height settings on the DGUS screen #197)
• Stay on mesh leveling screen after leveling has completed (issue [FR] After ABL has completed, stay on mesh display screen until Back is selected #195)
• Display mesh leveling pattern visually (issue [FR] Display bed levelling results numerically #148)

Detailed changes of the previous release

• Both homing and leveling preheat to decrease the effect of temperature differences and filament stuck to the nozzle causing issues
• Pausing a print will no longer pause the print with the nozzle hanging over the print, but will instead now park the nozzle during the pause
• Heaters are turned off while the actual probing is done. This reduces electrical noise which may otherwise cause inaccuracies in the Z-Offset and Bed Leveling measurements.
• Improve reliability of probing and leveling (issue [BUG] Homing failed #71, issue Auto bed levelling failed when called from Octoprint Mesh Vizualiser [BUG] #67, issue Removing SD card while printing from host reverts to main menu #49, issue [BUG] Octoprint receives error "kill()" from printer #42, issue [BUG] Bed leveling fails #41, issue [BUG] Z offset not consistent #38)
• Increase serial buffer size to improve reliability when printing a lot of vases via a host like Octoprint
• Automatically enable bed leveling after homing - even if you haven't called M420 S1 before
• Enable G26 bed leveling mesh validation tool
• Enable PID tuning for the heated bed
• Enable hotend time-out. This feature automatically disables the hot-end to prevent charring and jams. Currently set to 5 minutes.
• Enable G2/G3 arc by default - useful for those using Arc Welder
• Enable host action commands and host prompt support
• Enable probe accuracy test M48
• Report PID tuning progress on the status messages - you still need to run M303 manually (through serial monitor or gcode on your SD card) but you can now view the results as it happens
• Tap the temperatures in the footer to set them

Changes specific when using Creality v4.5.2 and v4.5.3 motherboards

• Improve reliability for SD card prints freezing - especially if using v4.5.2 boards (issue [BUG] SD card gets corrupted after a print. #62)
• Improve reliability in vase mode, prevent blobs when printing vases

Changes specific when using the Creality stock display

• When printing from a host, show 'Printing from host' instead of 'DWIN technology' as title (issue [FR] Support progress bar and file name when printing from host #55 and [FR] When printing from Octoprint 'DWIN technology' is shown #50)
• For some users M600 was not working - reliability has been improved (issue [BUG] Filament change M600 can't recover from 'heater timeout' #58) - please read here how to use it
• When printing from a host and removing the SD card, the home screen was displayed (issue Removing SD card while printing from host reverts to main menu #49)
• Improve the flashing instructions with instructions for Windows, MacOS and Linux users.
• Its now possible to change the flow rate (amount of filament extruded) from the "Tune" screen during printing
• Fixed G29 in start gcode causing unexpected behaviour (issue Auto bed levelling returning early to the Z-offset screen after factory reset and subsequent leveling #87)
• If you are using an all-metal hot-end you can now enter temperatures up 450 degrees on the touch screen. You still would need to recompile the firmware so this temperature is actually allowed by Marlin.
• Negative Z-offset is not displayed (issue Z-offset display doesn't show numbers below -0.01 #211)

Changes specific to BTT SKR CR6 boards

• Tune Trinamic motor current values to optimum values:
  • Extruder current has been set down - especially important for those of us using full metal extruders to prevent filament melting
  • Z-stepper current has been increased - both stepper motors share the same stepper driver and I have observed skipped steps otherwise
• Set spreadcycle stepper profile to 24V because the steppers are driven with 24V voltage
• Enable TMC driver monitoring to prevent skipped steps in case of overheat conditions. When the stepper drivers are about to get too hot the stepper driver current is lowered to prevent shutdown. This also allows the firmware to report if the drivers overheat.
• Improve filament sensor reliability
• Enable configuration of stealthchop/spreadcycle hybrid threshold via M913. If you don't like to tune this: no worry - everything defaults to stealthchop.
• Enable motherboard fan only when the printing (= Z steppers are moving). This makes for a very silent printer when idle.
• Tune PID - the new defaults should work well for most users
• Use FAN_KICKSTART_TIME to ensure the part cooling fan is started reliably
• Enable quick homing
• Prevent cancelling a print on the first layer from scratching the build plate
• Improve sorting of SD card files

Changes specific to BTT SKR CR6 firmware with BTT TFT

• Enable filament sensor - it didn't work if using BTT TFT
• Enable jerk editing from MarlinUI or via gcode M205
• Add support for bed leveling in the LCD menu
• Add a CR-6 branded bootscreen
• Change default preheat options to sensible PLA and PETG temperatures
• Enable the Z-offset wizard (available in Advanced Configuration -> Probe offsets)
• Add information menu to the main menu
• Add "mute" option to mute the speaker
• 🐍, 🛸 and 🧱 (scroll down in the main MarlinUI menu....)

Comparison to Creality firmware

See for a full list the Community firmware 4 alpha release notes, but some highlights here:

• Allow the probe offset to be set in 0.01mm offsets (issue Increase Z-Offset Resolution in the Level Screen to 0.01  #15)

• Pre-heat PLA and PETG temperatures are properly shown in the touch screen interface

• Save power loss recovery settings to the SD card instead of EEPROM, preventing blobs

• Filament runout detection has now been enabled by default again. (issue Change in default for runout sensor is a breaking change, makes old slices missing runout detection #19)

  • We use the Marlin native filament runout detection. This is more reliable than the home-brew implementation of Creality because it debounces any possible false readings. Give your filament sensor a chance again.
  • If you have previously used the resistor trick to bypass the filament runout sensor, you can undo it. If your filament runout sensor is really defective, you can disable it using M412 S0 - otherwise you can enable it using M412 S1.

• Support M300 (play tone / buzzer) (issue [FR] Add M300 (Play Tone) support #20) - You can now let your printer make some noise! Note that we only support the duration parameter of M300, and only with 8 millisecond precision due to the touch screen limitation.

  • This is especially useful because you can add M300 in your end gcode to have an audible notification that your print is done
  • When you have a filament change pending, the printer will notify you using an audible alert
  • Errors l

• Support M73 (print progress) (issue #7 and issue [BUG] Support print progress display #27)

  • When printing from Octoprint you can use the detailed progress plugin to update the progress on the printer display

• Support M75/M77 (start/stop print timer) on the touch screen level. This can be useful if printing from a host, because if you issue this gcode, the touch screen changes to the print progress screen. When printing from Octoprint, this will be injected by default in my experience.

• Enable EMERGENCY_PARSER commands

  • Enable support for gcode command M0 with resume via M118 via the touch screen (the "power loss recovery" screen is (ab)used for this)

• Support M117 LCD message (issue #7) on the print progress screen

  • If you use Cura, you can inject "time remaining" or the "current layer" and it will show on the display

• Enable linear advance / pressure advance allowing you to do linear advance calibration

• Based on recent version of Marlin (as mentioned above) instead of an early version of Marlin 2.0.0

• Support ADVANCED_PAUSE_FEATURE

  • Support M600 filament change - please read here how to use it
  • Support M701/M702 filament load/unload

Some bugs fixed

Some bugs may be fixed in the Creality v2.x firmware too - this list compares to the Creality v1.0.3.7 firmware on which the BTT SKR firmware is also based.

• Fix temperature reporting issues in Octoprint (issue Fix duplicate temperature reporting in Octoprint #3)
• Don't execute the SD abort gcode sequence when a print is succesfully finished - you can add G1 X0 Y{machine_depth} ;Present print to your end gcode in Cura to put the bed forward after the print completes.
• Prevent first layer abort from scratching the bed (issue Raise Z-Height During On-Screen End-Print Process #12)
• See for a full list the Community firmware 4 alpha release notes

Issues resolved

• Rapid Z-offset adjustment causes factory reset (issue Rapid Z Offset adjustment Cause Factory Reset #123)
• Units are displayed as mm but are actually in centimeters (issue X-axis, Y-axis and Z-axis values are displayed in cm on Print Screen, but labelled as being in mm #111, #118m Incorrect values in dashboard #129)
• Screen sound and stand-by settings not immediately activated after boot (Screen standby on default touch screen not activating #119 and Sound Control setting not applied immediately after cold boot #113)
• Cancelling a print sometimes processes a few commands before truly ending the print (issue Cancelling print sometimes moves nozzle to a corner and mid again, extruding filament #154)
• Bed temperature is sometimes lowered after homing (issue Bed Temp (80° for PETG) was lowered to 50° after homing  #132)

BTT SKR CR-6 board in combination with CR-6 stock touchscreen only

• SD card file list not refreshed when reinserting SD card (issue SD CARD is only detected after power cycle #151)

BTT SKR CR-6 board

• Improve stabilityfor Adafruit Neopixel (fix from upstream Marlin)
• Enable EMERGENCY_PARSER support again (fix from upstream Marlin)

For a full list of added features and bugs fixed - see the Community Firmware Release 6 milestone.

Known issues

For a full list of things found and fixed for the next release - please check the Community Firmware 7 milestone

• Auto-bed leveling might be slower than what you are used to - but this trade off is in favor of accuracy. We recommend leveling once - the printer will remember the leveling settings. Remove G29 from your start gcode - there is no need to level every time you print. Check this page for a recommended start gcode for your slicer.

• The mesh validation pattern seems slightly overextruded. This is still in an experimental phase (also described above).

When using the Creality stock touch screen:

• M600 does a filament purge and then continues printing - it does not wait for you to confirm enough filament is purged. For this reason I recommend to do the purging manually yourself and set the purging amount in the slicer to a low value like 10mm. This is due to a limitation in Marlin.
• The movement screen is less reliable if you have not homed before using the movement controls. Please home first before attempting to move the axes. We're showing the positioning numbers in red to remind you of that (issue [FR] Please consider implementing Marlin's REDUCED_ACCURACY_WARNING on the CR-6 SE display #73)

For the BTT SKR CR6 board with BTT TFT:

• Homing heats up before probing and this is not shown on MarlinUI so it appears not to function if you home from within the Marlin UI menu. If you go to the home/info screen though, you can see it heat up though.

Features not available in this firmware

• Full localization support. The Creality v2.x firmware offers full support for multiple languages - the CR-6 community team has no manpower to maintain localizations. If you're a bit tech savvy you can fork our touch screen firmware and maintain a set of localized screens as detailed here. Get in touch and we'Il put a link up to your fork!

Flashing instructions

Note: This release is accompanied by a new firmware for the touch screen. This release and the new touch screen firmware goes hand-in-hand - one cannot be used without the other.

• It doesn't matter if you flash the touch screen on motherboard firmware first, but it is easier to flash the touch screen first.

• Make sure you pick the right firmware package for your particular hardware configuration!

• You can get the files in the "assets" section below.

• There are also several video's available on how to flash the firmware:

  • Tom's Man Shed
  • The Edge of Tech
  • The Real Sam Prentice

Touch screen flashing instructions

This release of the touch screen firmware comes with a new version of DGUS OS (the underlying operating system of the touch screen) to fix text rendering issues.

Flashing instructions are also available as a video - this video is for the Ender 3 V2 but the same procedure applies to the CR-6. For instructions, check the README.txt in the touch screen firmware download.

For this release the touch screen firmware and flashing instructions is included in the firmware release package. Be sure to follow the instructions carefully. If you experience issues, try flashing the touch screen a second or even a third time. It doesn't always "take" all the files. Sorry - hardware limitation!

Mainboard / Marlin flashing instructions

0. If you like to remember what settings you had, run M503 in a serial monitor.
1. Use an empty SD card formatted FAT32 4096KB sector size.
2. Put the firmware ".bin" file from the zip file in the root folder of your SD card
3. When using Windows - do a "safe removal" to remove your SD card.
4. Put the SD card in the printer.
5. Either turn the printer off, then on again or issue command M997 from Octoprint/Pronterface.
   • BTT SKR boards will flash the hot-end led while the firmware is flashed and rename the firmware.bin file to firmware.cur.
   • Creality boards will give no indication of correct flashing - except for the fact that it took a few seconds for the flashing to complete
6. Verify the firmware is flashed by issuing M115 or going to "Control -> Info" on the touch screen.
7. You can now remove the file from the SD card.
8. After flashing go to the menu and reset to factory settings or issue M502 followed by M500 in Octoprint - do this also if you have been running an earlier release. You need to relevel the bed, recalibrate the z-offset, reprogram esteps (if you've changed them from defaults), and do a PID tune (if you find that the heating is not reliable for you or if you use high temperature plastics like ABS and nylon).

The version should be shown when flashed successfully. If it is not shown, try rebooting your printer, reflashing it by renaming the .bin file, reformatting the SD card, or trying a different SD card

FAQ

Some frequently asked questions. Your question will most likely be answered here!

I have a CR-6 MAX with a BTT SKR CR-6 board

You need to compile the firmware yourself, we currently don't have an example configuration. If you have an example configuration, let us know and it will be included in the next release!

How do I know if I have a Creality v4.5.2 or v4.5.3 motherboard?

• You can open your printer - the motherboard version found in the area between the stepper motor connectors and the connectors of the flat cables as shown here
• If you have a CR-6 with a serial number before December 2020 (P202J*[month]*K[number]) you will have a v4.5.2 motherboard
• If your stock firmware was v1.0.3.7 or v1.0.2 you have a v4.5.2 motherboard
• If your stock firmware was v1.4.x you have a v4.5.3 motherboard

I have a v1.1-ERA motherboard. What firmware do I flash?

According to Creality the v1.1-ERA motherboard is electrically compatible with the v4.5.3 motherboard, so you can probably flash the v4.5.3 firmware.

I don't want to open my printer. What happens if I install the firmware for the v4.5.3 motherboard on my v4.5.2 motherboard

No smoke - or at least, not due to the firmware. However, during homing the printer won't be able to read the optical sensor on the gantry. So it won't know when to listen to the strain gauge and drive the nozzle into the print bed.

Does it matter if I flash the touch screen or motherboard firmware first?

No - you can do it in either order. Though, I advise to flash the touch screen first.

I'm having trouble flashing the touch screen firmware / things aren't working / I'm seeing garbled or missing text

Try reflashing your touch screen firmware. Read the flashing instructions carefully. The DWIN stock touch screen is very picky when it comes to SD cards. Sorry, we nor Creality can't change this.

After flashing the touch screen it only shows a black display

This has occurred to some users while upgrading to either official or community firmware, but it is unclear why this happens.

Make sure you haven't accidentally shorted the PCB of the touch screen when you attempted to flash it. Because the DWIN touch screen uses SRAM, it takes a while for the error condition to clear. Turn off the printer for 5 minutes or more and try reflashing the touch screen.

I have leveling issues / my prints don't stick to the bed

Your Z-offset isn't the same as with a previous firmware due to leveling accuracy improvements. Also try cleaning your bed, you may have touched it when flashing the touch screen.

My nozzle is driven into the bed

Ensure the optical sensor is properly connected. You can verify this by running command M119 from a serial monitor, blocking the optical sensor, and running the command again. You should see a difference in the output.

A previous release of the community firmware was (incorrectly) tolerant to this sensor being connected incorrectly. If your sensor is broken, build the firmware yourself with the option '#define PROBE_ACTIVATION_SWITCH` commented out.

My printer reboots when printing (Creality v4.5.2 boards)

Make sure your SD card isn't corrupt. Also some v4.5.2 boards do not like some types of SD cards.

A small number of v4.5.2 boards also get overloaded by the more features that are enabled by the firmware. For most boards it isn't an issue, but some particular v4.5.2 boards are unstable. Nothing you can do, stock firmware for you only - or upgrade to a v4.5.3 or a BigTreeTech SKR CR6 board.

You can also try CF[version]-cr6-se-v4.5.2-mb-no-watchdog-[date].zip firmware, but be aware: if the firmware would freeze then there is nothing that prevents the printer from overheating. Use with caution!

The temperatures go up/down/up/down while bed leveling

That is by design to improve bed leveling accuracy. Turn it off by disabling "Better accuracy" in the leveling settings (not recommended).

Reporting issues

Please follow the instructions here carefully.
Issues not following the issue template will be closed due to insufficient information.

Troubleshooting

• Verify that the issues are not in your hardware. We've seen issues that were reported as firmware issues, but were actually hardware issues that "just" happened.

  • Check you have a good SD card. Do not use the Creality SD card that came with your printer. It will fail sooner or later and result in failures. Try a different SD card.
  • Leveling: try it again a second time and try using the stock cable clips.

• Verify that the issues are not in your slicer

  • Cura 4.7.x is having issues
  • Cura 4.8 is still giving some issues for some people. Try playing with the maximum resolution and maximum deviation settings in your slicing profile.

Feature requests or other input

Feature requests are welcome! Let us know in the issue tracker!

Contributing

Your contributions are very welcome!

• Please open an issue in the issue tracker first to discuss what you like to contribute. This is especially important if it involves the touch screen because due to technical limitations only one person can work on the touch screen firmware at the same time.
• Issues marked "good first issue" or "help wanted" can are a good issue to start with!
• If you can't code but still like to contribute and can spare a coffee please check the credits section of the README to support the developers.

Some final notes

• Remember that this is a community project, we're not paid (definitely not by Creality!), we have a full time job, doing this in our spare time, and we're just 3d printing enthusiasts who like to have a better Creality CR-6 experience for everyone.
• We're active in the CR-6 community discord - come say hello!
• You can get the files in the "assets" section below. Note that if you like to compile the firmware yourself you can best pick the correct branch from Github instead

File listing

The files can be downloaded from the assets section at the bottom of the page. You can find the description of the files below.

File name                                                                          Description                                                                      SHA256 hash
---------                                                                          -----------                                                                      -----------
CR6Comm-CF6-Final-btt-skr-cr6-with-btt-tft-2021-03-27-15-50.zip                    CR-6 SE with BigTreeTech SKR CR6 and BTT TFT                                     D93197F196432635FAF20648410CE9ECB20DE7737BF54E97C5B663A55139541F
CR6Comm-CF6-Final-btt-skr-cr6-with-stock-creality-tft-2021-03-27-15-50.zip         CR-6 SE with BigTreeTech SKR CR6 and stock Creality screen                       AA67A30BB7045F8B5C8C1C7C276B2258B746AE2C49237C9255447DFFDFE47FBF
CR6Comm-CF6-Final-cr6-max-btt-skr-cr6-with-btt-tft-2021-03-27-15-51.zip            CR-6 MAX with BigTreeTech SKR CR6 and BTT TFT [experimental]                     09A2ABFDAA1D75BAA7D38170646E9021FAAE5F12AD04843F223A3D65E35B41FA
CR6Comm-CF6-Final-cr6-max-btt-skr-cr6-with-stock-creality-tft-2021-03-27-15-51.zip CR-6 MAX with BigTreeTech SKR CR6 and stock Creality screen [experimental]       31B56C0217AA6B730D82704D20A464FF307A4922EF8BD51685E4841EC5B48199
CR6Comm-CF6-Final-cr6-max-stock-mb-2021-03-27-15-52.zip                            CR-6 MAX (stock motherboard)                                                     3F55931A9D6907E204EA8864645E2E6B11E442F1DE5837E8627E519AFE981698
CR6Comm-CF6-Final-cr6-se-v4.5.2-mb-2021-03-27-15-52.zip                            CR-6 SE (v4.5.2 motherboard)                                                     D656E2A53A62EFAC52308210E1D4466CF0B966A7E748A36A6151D9DA51C6D2B7
CR6Comm-CF6-Final-cr6-se-v4.5.2-mb-no-watchdog-2021-03-27-15-53.zip                CR-6 SE (v4.5.2 motherboard) (no watchdog - caution - thermal runaway possible!) AD4122A8EC477D48D713D84BC2C24CCED92F17079FC65712918101C0F89C6779
CR6Comm-CF6-Final-cr6-se-v4.5.3-mb-2021-03-27-15-53.zip                            CR-6 SE (v4.5.3 or v1.1-ERA motherboard)                                         1F713C01A02D6380B16EE64D877B40068F18166BA554B4A36FD0CD450652A185

Downloads below - find the correct download in the file listing above

[Thinkersbluff]

@Sebazzz - If it is now possible to make “Probe with Heaters Off” configurable from the new ABL settings menu, could this be an option on the Control menu, impacting all probe operations? Or is this a neat trick that only affects ABL?

[Sebazzz]

It involves all probe operations, so homing too, but there is no space in the control menu until we take a serious look at #121

[Thinkersbluff]

there is no space in the control menu until we take a serious look at #121

Understood. I have some ideas on that score, too.

[Sebazzz]

Updated the release notes. Included a part of the beta 5 release notes as well.

[Thinkersbluff]

Some users may appreciate a pointer to this CNC Kitchen Youtube video, to help them make sense of the advice, "Try playing with the maximum resolution and maximum deviation settings in your slicing profile."

https://youtu.be/Hvw3DrVAeTA

[Thinkersbluff]

"This release of the touch screen firmware comes with a new version of DGUS OS (the underlying operating system of the touch screen) to fix text rendering issues."

Did this get rolled back? I don't see any change to the OS filenames.
Ref CR6Community/CR-6-touchscreen#30

[Sebazzz]

"This release of the touch screen firmware comes with a new version of DGUS OS (the underlying operating system of the touch screen) to fix text rendering issues."

Did this get rolled back? I don't see any change to the OS filenames.

Ref CR6Community/CR-6-touchscreen#30

Compared to the stock Creality firmware. I shall clarify it.

[Thinkersbluff]

I find the "Restore" defaults a bit confusing on the retraction override screen.

• Why 8mm/s default Restore speed instead of the same speed as Retraction? (Makes it impossible to set a matching speed + makes the head pause each time it comes back down to the print, while the nozzle pressure is restored)
• I hesitate each time I see Restore distance of 0mm, thinking, "if the Restore speed controls bringing the filament back into the nozzle, might the filament stay retracted if I have a value of zero here?"

Maybe just my funny brain...

[Sebazzz]

makes the head pause each time it comes back down to the print, while the nozzle pressure is restored

Sorry, that is a feature (Marlin feature that is).

Makes it impossible to set a matching speed

Why?

I hesitate each time I see Restore distance of 0mm, thinking, "if the Restore speed controls bringing the filament back into the nozzle, might the filament stay retracted if I have a value of zero here?"

What do you propose? It is the same settings as these slicer settings:

[Thinkersbluff]

Makes it impossible to set a matching speed

Why?

On my system, these speeds only change in increments of 5mm/sec. With an initial difference of 8mm/sec between the two, I can not make them match each other.
I don’t understand why a default value is a “feature”.
It would make more sense to me if the “Restore speed” was labelled “Prime Speed” and if it was defaulted to the same value as the Retraction speed, because I only use Cura.

What do you propose? It is the same settings as these slicer settings:

It is unfortunate that all slicers do not standardize on the same terminology. If the label was “Extra Prime Amount” I think it would be more clear what will happen with a non-zero value.

Selfishly, perhaps, I recommend standardizing on Cura terminology and default settings when implementing “slicer override” settings. At least that way, users who use Cura are better able to correctly guess what each control does, the release notes can explain the equivalent settings in other popular slicers, like S3D, PrusaSlicer, Slic3r, SuperSlicer, etc..

[Sebazzz]

@Thinkersbluff Please open a separate issue for clarifying the terminology. This needs some graphics work.

[Thinkersbluff]

@Thinkersbluff Please open a separate issue for clarifying the terminology. This needs some graphics work.

Done
#213

[Thinkersbluff]

Here are some updated screenshots, from CF6Pre5.
Screenshots.zip

I have reported the "Printing From Hostio" bug under issue#216 and removed that pair of photos from the zip file here.

[simboel]

Just a small hint regarding #208

Would you mind to add a note, that this feature will be usable with Cura Release 4.9, too?
This seems to be implemented in Ultimaker/Cura#8403

This may help people like me to not start on implementing this for Cura because it will be available soon 😆

[Sebazzz]

Check, I've added a note!