I’ve completed the install of the BL Touch Adaptor for the Lulzbot Taz Pro XT
I followed the directions based on the support page
The last step does not link you to any next steps? Where’s the firmware? How will I adjust the Z Offset? Babystepping?
I looked at Cura and checked under the Add Printer area. I do not see any firmware options for the BL Touch integration?
The latest CuraLE - 3.6.40 - has the firmwares for BLTouch. You’ll have to add the printer and check the box for “BLTouch”. You might be able to just manage the printer, check the box, then go to update firmware, but I’d start clean.
Printer Changes:
Firmware Changes:
Material Profile Changes:
Other changes:
Okay this is hugely helpful.
I have checked the Cura LE and the newest Beta and couldn’t find anything.
I didn’t see a prompt to upgrade to a newer version but I will definitely go download the newest to see if I can get this working.
Is there an ability to actively babystep the first layers via the LCD screen of the XT?
I just downloaded the latest 3.6.40 Thanks for the info
I see the Beta is updated but in the release notes, I can’t see if they also have the BL Touch added there. I’ll download and have a look (since Beta is largely what I use for printing)
No easy babysitting on the touchscreen. You have to use the nudge menu, and keep in mind that the nudge commands go into the command queue rather than directly like on the standard screens, so the best way to do the adjustments are with a first layer that has lots of turns and changes so it gets through the queue faster. Long straight lines take a while to print, so even 3-4 of them in the queue can make your nudge adjustments take quite some time to get their turn and show up.
Okay so I took your advice and did the Add a Printer, selected my Lulzbot Taz Pro XT, M175v2 and checked BL Touch
I got a pop up that there is new firmware available.
I went into Manage Printers, high lighted the new printer I added (I put a BL in the prefix to denote the BL touch version) and clicked “Upgrade Firmware” I selected “Automatically Upgrade…” and checked the “Update EEPROM” option as well. Firmware updated, printer restarted itself.
I went to the printer Menu, and About Printer and it shows BL Touch Probe and Marlin 2.0.0.144.10
Shouldn’t it be reading 2.0.0.144.8 ?
??
How is that remotely related to this topic?
If you don’t have meaningful advice to add, please don’t post.
2.0.0.144.8 is the non-BL universal toolhead firmware for the XT, 2.0.0.144.10 is for with BL Touch on the XT.
There’s quite a few different firmwares for the pro right now:
Okay so it sounds like I have the correct firmware then!
Thank you for that screenshot.
I’m not at the machine now but I am curious how many points the BL Touch will use to create the mesh?
I am very interested to see what the start gcode will look like now.
Could this allow for a custom profile to be made in Ulitmaker Cura 5.4, copying and pasting from v3 or the Beta?
Most of the enhancements to the current Cura LE that I’ve seen revolve around the wipe sequence to give the corner probing some chance at success and making dual extruder printing work more efficiently. If you have a BLTouch-enabled single extruder, then you’re getting some benefit from the built-in profiles for the machine and filaments, but otherwise, yes. Take the BLTouch startup GCODE to Cura 5.4 and rebuild the material profiles if the built-in ones don’t work for you.
Points for the mesh, I think the posted source isn’t in sync with what was used for the Pro BLTouch. As it currently reads:
// Set the number of grid points per dimension.
#if defined (Sidekick_747)
#define GRID_MAX_POINTS_X 4 //4x4 grid to avoid hitting the handle on the flex bed
#elif defined(Sidekick_289)
#define GRID_MAX_POINTS_X 3 //3x3 grid to increase startup speed
#else
#define GRID_MAX_POINTS_X 2 //2x2 grid of mounted washers
#endif
#define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
No provision for the Pro variants. In the config for the various models, the Sidekick has BLTouch enabled:
#if defined(LULZBOT_Sidekick_747)
#define Sidekick_747
#define LULZBOT_CUSTOM_MACHINE_NAME "Taz SideKick 747"
#define LULZBOT_LCD_MACHINE_NAME "SideKick 747"
#define LULZBOT_MACHINE_UUID "5b3d61d6-80f8-41ed-bd8a-9c765f8d523d"
#define LULZBOT_BLTouch
#define LULZBOT_SENSORLESS_HOMING
#define LULZBOT_USE_EINSY_RETRO
#define Z_AXIS_WILL_FALL
#endif
But no Pro does:
#if defined(LULZBOT_Quiver_TAZPro)
#define TAZPro
#define LULZBOT_CUSTOM_MACHINE_NAME "LulzBot TAZ Pro"
#define LULZBOT_LCD_MACHINE_NAME "TAZ Pro"
#define LULZBOT_MACHINE_UUID "a952577d-8722-483a-999d-acdc9e772b7b"
#define LULZBOT_USE_ARCHIM2
#endif
#if defined(LULZBOT_Gladiator_TAZProXT)
#define TAZProXT
#define LULZBOT_CUSTOM_MACHINE_NAME "LulzBot TAZ ProXT"
#define LULZBOT_LCD_MACHINE_NAME "TAZ ProXT"
#define LULZBOT_MACHINE_UUID "28ac1ce7-ca05-4f8e-8f1f-1d2f4496a1eb"
#define LULZBOT_USE_ARCHIM2
#endif
But, based on bed size, it would make sense that they’re doing a 5x5 grid. That’s what I use in my Taz 6 and Pro.
I agree and appreciate the deep dive you took.
I mean if I can copy/paste the machine settings, Start and End gcodes into a custom profile in 5.4, that would be really great. Then some of my really large prints can benefit from the gains made in tree supports.
I haven’t looked at the startup GCODE for the BLTouch pro versions, just look out for probe temp and wipe temp references in the startup.
I didn’t spot any obvious changes to the start gcode when I ticked on BL Touch.
I asked the same questions to Support and haven’t heard back.
I’ll do a test slice and see what the gcode shows & share
There will not be any difference in the start gcode of the prints.
The G29 command that controls leveling is the same with or without the BLTouch.
It is the firmware itself that tells the printer what to do when it is given the G29 command.
Installed Beta, the Wizard had me select a printer and selected the M175v2 and ENABLED BL Touch.
Sliced a cube for a test print and watched the print head crash into the bed.
So… yeah, that’s fantastic
Went into Manage Printers and noted that BL Touch was not checked off in there. I have again checked it off and about to try another print.
It looks like the beta doesn’t have the much more detailed Start gcode the non beta has… cut and pate into Beta?
Ok, so the z offset was way off. Way too high
For those looking for how to babystep, on the LCD screen , you hit Menu and Nudge Nozzle (which you won’t see until a print has started) There you can + or - the z buy 1.0, 0.10 or 0.01 mm increments.
When you are satisfied with where the layer is at, you can exit and it was ask if you want to save the Z offset.
The complex startup is for wiping and priming that isn’t necessary with the modern bed leveling.
For a basic BLTouch startup on these machines, I’d go with:
M73 P0 ; clear progress bar
M75 ; start progress timer
M107 ; disable fans
M420 S0 ; disable previous leveling matrix
G90 ; absolute positioning
M82 ; set extruder to absolute mode
G92 E0 ; reset extruder position to 0
M190 R{material_bed_temperature_layer_0} ; warm bed up to first layer temp
G28 XYZ ; home XYZ axes
G29 ; bed leveling sequence
M420 S1 ; enable bed leveling matrix
M400 ; wait for any moves to finish
M109 R{material_print_temperature_layer_0} ; heat nozzle
That looks so much cleaner, I will use that!
I’m also going to compile everything learned over this thread into a YT video shortly.
Hopefully this helps others!