I'm pleased to share a personal project of mine, where the initial design started in late 2018, and purchasing started in March of 2019. By no means is this complete, but I'm at a point where I'm excited to share the progress I have made so far.

Some background - My first real experience with 3D printing was in 2017 at the office; we had a Stratasys Dimension 1200es BST that wasn’t getting much use. I started printing practically anything I could think of, starting with a small hand tool, and progressing to much larger and more sophisticated designs. In early 2018 I got the go-ahead to propose search for a new 3D printer model that we would buy two of – because more is better, right? At that point I realized both the age of the Stratasys machine, as well as the wealth of hardware and software options for printers available at the time.

We opted to go with two BCN3D Sigmax printers – dual extrusion was a must, the IDEX technology had some potential uses, and the large bed width was attractive. I spent quite a bit of time learning how to effectively operate those machines (they are surprisingly a lot of work!); later I picked up a used Davinci 1.0 and flashed it with Repetier, built a MPCNC, and eventually the Stratasys went belly-up and made its way home with me.

My initial design objectives were to have a machine that…

• Has a rigid frame
• Has a limited number of 3D printed components
• Has an enclosed and heated chamber
• Has a large print area
• Is capable of printing high temperature thermoplastics
• Is capable of dual extrusion
• Is capable of fast travel speeds with reasonable accelerations

To start the design, I purchased two Rexroth ballscrews and 3x sets of IKO LWL12B 500mm rails with two ML12 each, sizing the frame to these components. Later on I purchased two LWHT15 200mm rails with a single carriage each for use with the ballscrews for the Z-Axis.

Other design and component decisions:
I wanted to utilize the Gates GT3 series of belts and compatible pulleys

• For the Y-axis I selected 3mm belt pitch, 15mm belt width
• For the X/U-axis, I selected 2mm belt pitch, 9mm belt width

I wanted to balance speed and resolution

• 16x microstepping, managing to achieve 100steps/mm in the X/U axis, 96steps/mm in the Y axis
• Y axis is geared down with a 2.25:1 gear ratio to compensate for the heavier axis
• X, U, and Y axis run at 300mm/s max speeds and 4000mm/s^2 acceleration

For the Y-axis and Z-axis, stepper motors are NEMA 23

• Oriental Motor PKP264D28AA2, .74 N*m, 2.8 A/phase, 1.5mH/phase
• Set to 2.4A in config.g
• Run super cool, barely feel warm to the touch

X and U axis use NEMA 17

• Oriental Motor PKP244D23A2, .48N*m, 2.3 A/phase, 1.9mH/phase
• Set to 1.8A in config.g
• These run quite a bit warmer than the NEMA 23s

Slice Engineering Mosquito and Mosquito Magnum for hotends

• Various nozzles (P3D, E3D NozzleX, Slice Vanadium
• Slice thermistors and heaters
• 12V Sunon fans

5/16” ATP 5 plate, 1000W Keenovo heater, SDF DF240S thermal cutoff (200°C holding temperature)

• TCO holding temperature may be a little high, but Keenovo recommended a maximum operating temperature of 204°C based on the 3M adhesive rating.
• Three-point bed leveling with probing
• Initially looked at a kinematic bed solution but opted for a fixed countersunk screw/spring combo, with two slotted countersinks sized and positioned to account for thermal expansion.

Bondtech BMG-M extruders

IDEX

• I do enjoy the IDEX technology on the BCN3D printers but wanted something a bit more structurally sound. Mechanically, lots of inspiration taken from the Stratasys Dimension 1200es.

Duet controller board(s) - Duet 2 Wifi, Duex5, PanelDue 7i

Snap action homing switches for X, U, and Y

• These have moved quite a bit as the design has evolved, I’m not happy with how they are mounted at the moment
• Had a homing “oopsie” where the U assembly crashed into the X carriage, actually moving the switch mounting block, and messing up my calibration!

Right now I’m looking at a print volume (single extruder) of 420mm x 450mm (475mm Y travel) x 210mm, losing ~100mm (to ~320mm) on the X and U axis for dual extrusion (lesson learned there!).

The project so far has been a blast, with many lessons learned along the way. The X-U axis has by far been the most challenging to build and design, I’m on the second major iteration and I’m still not entirely pleased, although I am getting satisfactory print results. As this is my first printer design and build, it was challenging to prioritize assembly design priorities. With this project, despite having a good idea of the components I wanted on each hotend assembly, it was the last item I designed and built up – ends up my build plate was a bit too big, leaving me little room to have nozzle wipe stations, purge buckets, etc. On future projects I for sure have a better idea of what assemblies to prioritize, making further decisions based on the size and function of said assemblies.

While working on this project, I did not initially intend to share the design files, however because of all that I learned from the fantastic content and individuals on this community and others, I figured I should give back and contribute this project.

https://drive.google.com/drive/folders/12TOxGG-kKjuYwNuwhYpwor9TGhdfy2mg?usp=sharing

The Google Drive link contains a Solidworks (19-20) pack-and-go, as well as assembly parasolids (.x_t) and IGS files. A (very!) rough BOM and various images and videos of my progress are also available.

How have I done so far?

• Has a rigid frame - definitely nailed this one! Almost entirely end tapped extrusions with fasteners + access hole
• Has a limited number of 3D printed components - making progress, but not quite done. Y axis bearing holders, most of the hotend carriage assembly is still 3D printed
• Has an enclosed and heated chamber - making progress on enclosure, have not installed+tested active chamber heating (excluding built plate)
• Has a large print area - pretty satisfied
• Is capable of printing high temperature thermoplastics - goes hand in hand with the heated enclosure, no issue with extruding 9085 PEI, but I have not tested an actual PEI print (the volume above the build plate stabilizing at 50°C without being fully enclosed, which is pretty neat, but not enough for PEI)
• Is capable of dual extrusion - accomplished
• Is capable of fast travel speeds with reasonable accelerations - accomplished

Many thanks to Slice Engineering, PrintedSolid, and Filastruder ( @elmoret ) for fast shipping, excellent communication, and great customer service when it was needed, as well as to the Duet team for a fantastic product.

@BlueDust said in IDEX anyone?:

I am thinking about building an IDEX printer as a 2nd printer. Few questions...
Could I use a filament sensor on each extruder?
Using a Duet2, would I also need a Duex5 to run an IDEX?
Is best practice installing a bed level sensor on both hotends?

Are there any considerations or limitations I should be aware of in regards to building an IDEX printer and it's use?

Thanks!

I'm running an IDEX, and I do enjoy the flexibility of it. Some advantages when compared to single extrusion - multi material, mirror/ditto print, and different diameter nozzles in the same print (walls vs infill, etc).

You will need an expansion board when using a Duet2, I'm using a Duex5, but I think you can get away with a Duex2.
I only have a bed leveling sensor on one hotend, I calibrate the second within the config.g to line up with the first hotend.

Like any multi extrusion setup, it gets expensive. The mechanics and design considerations of the gantry holding the two hotends gets a little more complex, and you have additional hardware to sling around. Whenever you change your nozzle setup, you will need to re calibrate both hotends, as there are minute differences in nozzles.

@TheBasedDoge said in Many issues after upgrading to 3.0 RC-12:

Ok, here it is. thank you!

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun May 10 2020 13:55:08 GMT-0400 (Eastern Daylight Time)
; Axis Limits
M208 X0 Y0 Z0 S1                                       ; set axis minima
M208 X300 Y0 Z0 S0                                     ; set axis maxima

M208 X300 Y0 Z0 S0 ; set axis maxima

That looks like a mistake - Y300 right??

I am saddened by the news. While I had limited direct interaction with Danal, his posts were always insightful and his projects an inspiration. He will certainly be missed in all the communities he participated in.

Some mechanical updates (and lessons learned)! When this thread was posted, the X-U axis was on its second major revision. The initial design placed the steppers, belts, and idlers on the backside of the axis.

On the 'low' side of the axis, a third ML12 block was used to join this axis to the Y-axis guide blocks and belt, with the intent to mitigate alignment or expansion issues. The issue with this X-U axis design was that the print area was limited because of the space occupied by the stepper motors and idlers.

The second iteration placed the steppers, belts, and idlers on top of the axis.

Previously the idlers were supported on both ends via a rotary shaft and two ball bearings, however the change in belt routing necessitated a change in how the idlers were mounted.

Misumi configurable shoulder bolt, washers, idler, with flanged bearings. The problem here is that I had selected a 4mm shoulder diameter, and had the option to either select an M3 or M4 thread at the end - I opted to go with M4, and thus sized the through-hole in the plate to that diameter. When tightening the stackup, I compress the bearings, idlers, etc to the plate instead of just the threaded portion of the bolt to the plate (below left, area in red can be tightened).

Had I gone with an M3 thread with the 4mm shoulder diameter (above right) the shoulder would have been tightened to the plate (via the hex nut or even a tapped hole), with the shoulder length specified to be equivalent to the washer, bearing, and idler stackup. As it is now I have to be mindful when tightening this section.

Interesting design note, in order to match the bearing size, shoulder diameter, and idler counterbore, I needed to select (I believe) a minimum of a 24 tooth pulley. I designed the stepper mounting plates such that the belt segments the hotend carriages clamp to are parallel to the gantry.

With the new X-U stepper and idler locations, I was able to center the 550mm length rail, however this required a short linear guide to be installed on the low side of the axis. Of course, with the stepper motor plate on the low side now mounted to a linear guide, I'm now tensioning the belts against a sliding surface... yes ultimately that side is mounted to a fixed surface (Y-axis guide), any misalignment would result in varying belt tension as the gantry travels up/down the Y-axis.

I recently removed this short guide and have seen no ill effects, however the impact of thermal expansion cannot be discounted and should be investigated further.

Some other neat stuff, build chamber is nearly completely enclosed, with the localized build envelope temperature stabilizing at 68°C with the print bed at 120°C. Some work is still needed on that front.

Just yesterday I setup the tool needed for duplication printing - not the prettiest ABS prints (steep overhang, high print temperature, and no print cooling fans ) but it worked well! Some goofy movements at the start and end, which I attribute to my tool change files, but overall pretty easy.

https://www.youtube.com/watch?v=5FNhITS6L6I&feature=youtu.be
An issue I am having is with the filament tubes and cable assemblies for each hotend bending and pressing down on the X and U belts. Somewhat self inflicted with the limited clearance above the hotend carriages, but still working through this issue.

@Nxt-1 said in Delta stepper upgrade - advice welcome:

@sebkritikel Thank you for the suggestions. Do you have any experience with either of the motors you suggested?

I have also found these from the same supplier:

PKP266MD28BA

• Rated current: 2.80 A
• Holding torque: 1.32 Nm
• Inductance: 3.90 mH
• Rotor inertia: 290.0 gcm²
  (6.35 mm shaft)

PKP266MD28B2

• Rated current: 2.80 A
• Holding torque: 1.40 Nm
• Inductance: 3.00 mH
• Rotor inertia: 310.5 gcm²
  (8 mm shaft)

These see to be the longer versions of the ones you linked (54 mm vs 39 mm)

I don't have any experience with those models, however I do use two PKP264D28AA2 NEMA23s (2.8A/phase, 1.8°, 39mm, 74Ncm, 1.5mH inductance) on my printer, and they are fantastic.

I see you're trying to hit 200steps/mm with a 2mm pitch belt @ 16teeth on a pulley... I don't know how realistic it will be to find a pulley with 16 2mm teeth, and 6.35mm or greater shaft bore

Excerpt from Misumi's 2mm PowerGrip® GT®3 catalog listing

@gnydick said in Pressure advance limits?:

@engikeneer thanks. Yes, I'm aware of the distinction. From my pictures, you can see the ghosting only happens after sharp feature changes. That's why I believe it's PA.

I may be missing something, but I don't believe its PA, and I do believe it is DAA, M593. Have you configured M593?

I think you're conflating a PA "fix" at 2000 mm/s^2 when really the system doesn't create ringing at 2000mm/s^2.

I would recommend running your same test, but with an appropriate value of M593 configured. Verify the speed at which your outer perimeters are set to (stock print speed doesn't always equal the perimeter speed... make sure you double check), and divide that by the "peaks" of the ghosting ripples.

@bot said in Tips to mitigate vertical artifacting Duet 2 Wifi:

Well, I wasn't able to find any ready-to-go off-the-shelf idlers from Misumi (that are more than 5 or 6 mm), but I've always wanted to try using one of their customizable pulleys for idlers: See info here.

You can choose a wide range of sizes of pulley there, and you can get stepped holes made which should allow for easy placement of bearings. They have a variety of options and you can have the stepped hole sized how you wish. See:

snip

[Edit: this photo is slightly misleading, there are more options to configure to get a full part number. Still playing around with it ]

I've done that on my machine, and it works quite well (albeit the assembly stackup can get pricy quick!). Must carefully select parts based on all the appropriate parameters.

Something to look out for is there is an issue on Misumi's site it seems, where you cannot select all the options on the left side (for example, with the Gates MR2 page, the "T" parameter does not show up. As an example, filling out all the available options can give you "GPA30MR2090-A-Y4-Q6-R6-S3", so copying and pasting that P/N with the addition of "-T3" into the search pulls up a real part.

For this case, do we want GT2/GT3 (Gates MR) or the 2GT series?
Looking at 2GT
Looks like something like 26teeth would match the 16mm OD (16.04mm OD, 16.55 PD). However the max 'shaft' hole for this size is 6mm, and the max counterbore is 8mm. However, it looks like the site gets stuck at GPA26GT2060-A-Y6, and we cannot configure past that.

@Danal said in Reliable dual extrusion:

@NitroFreak said in Reliable dual extrusion:

You are correct, however I think the Cura version works a little better because it can pre-warm the second nozzle while the first is still printing, based on a warm-up time (for me, 2.0°C per sec).
Also, it can say, if the nozzle is inactive for a period shorter than , let´s say, 45 seconds, the nozzle will not be cooled down. The Duet board would need a massive look ahead i think.

That is quite nice. I will take a look, thanks!

Its awesome - look specifically at the "Heat Up Speed" and "Cool Down Speed" (if you have the Printer Settings plugin installed). Effectively the slicer is performing the look ahead, rather than the Duet board.

@sebkritikel said in Bed mesh compensation not applied to all the tools:

@Phaedrux said in Bed mesh compensation not applied to all the tools:

@sebkritikel I'll check with DC42 as I really have no idea.

For what its worth, I just tested it on my machine and can confirm G10 Z offsets will interact with with taper values set via M376, similar to what slyvain is seeing.

Duet2 Wifi+Duex5
3.2-beta2 (2020-10-05b2)

Set M376 H15
With T0, with no offsets in G10, moved over built plate at Z=6mm. Could see ballscrews moving for compensation

Put an artificial offset on T1 (IDEX) of G10 P1 Y.22 U.00 5 Z-20

Selected T1, bed moved down to account for Z-20 offset. Still read 6mm.

Moved T1 over build plate - no ballscrew/stepper movement for bed compensation.

Homed all axes, reset T1 offsets to G10 P1 Y.22 U.00 5 Z.3

Moved T1 over build plate (at Z=6mm), could see ballscrews/stepper moving for compensation.

@dc42 this comment should summarize the thread, while tested on an IDEX machine, should be easy to verify on a toolchanger.

@DE-TechArt said in Creating a new IDEX 3D Printer with Duet 2 WIFI:

@sebkritikel This is a rather complicated method. I do not think that a beginner and an ordinary consumer can handle it.
And why are you against bcn3d Cura? it was designed specifically for IDEX printer

Cura is complex software, and has the capacity to create machine profiles for your customers to use. Have you tried creating a machine profile, extruder profiles, and print settings to match the capabilities of your machine? You can post on their forums for help potentially on creating Cura profiles for mirror/duplication mode, as that is more specific to Cura than Duet.
https://github.com/Ultimaker/Cura/wiki/Adding-new-machine-profiles-to-Cura
https://github.com/Ultimaker/Cura/wiki/Definition-Files-Explained
Example: https://github.com/Ultimaker/Cura/blob/master/resources/definitions/ultimaker_original.def.json

For my IDEX machine, I have been (slowly) creating the appropriate Cura definition files, and hope to one day make it seamlessly work with mirror and duplication modes, but I am not there yet.

The Duet electronics hardware, RepRapFirmware, and community here are excellent at creating machines with intricate macros, amazing kinematics - but some effort is on the individual 3D printer designer to put all of the final touches in place.

You can certainly experiment with the BCN3D Cura, but keep in mind a few things.

1. It is a "fork" of a much older version of Ultimaker Cura
2. It is designed for use with their custom version of the Marlin Firmware, not RepRapFirmware

https://github.com/BCN3D
https://github.com/BCN3D/Marlin
https://github.com/BCN3D/BCN3DSigmax-Firmware

Here is the start of a GCODE file made by BCN3D Cura for mirror mode. Marlin GCODE

;FLAVOR:Marlin
;TIME:8871
;Filament used: 1.69044m
;Layer height: 0.15
;Extruders used: T0 0.4 T1 0.4
;BCN3D_FIXES
;Generated with Cura_SteamEngine 2.1.5
T0
M190 S60
M104 S190
M104 T1 S190 ;Fixed T1 temperature
M109 S190
M109 T1 S190 ;Fixed T1 temperature
M82 ;absolute extrusion mode
;Sigma ProGen 2.2.0 (Build 14CJ1301)
;BCN3D Fixes applied
; - Fix start GCode
; - Fix Acceleration/Jerk commands
; - Z Hop At Layer Change

G21          ;metric values
G90          ;absolute positioning
M204 S600 ;set default acceleration
M205 X12.5 Y12.5 ;set default jerk
M107         ;start with the fan off
G28 X0 Y0    ;move X/Y to min endstops
G28 Z0       ;move Z to min endstops
G1 Z5 F200   ;safety Z axis movement
T1           ;switch to the right extruder
G92 E0       ;zero the extruded length
G1 F47.4 E15 ;extrude 15mm of feed stock
G92 E0       
G4 P2000     ;stabilize hotend's pressure
T0           ;switch to the left extruder
G92 E0       ;zero the extruded length
G1 F47.4 E15 ;extrude 15mm of feed stock
G92 E0
G4 P2000     ;stabilize hotend's pressure

M605 S6      ;enable mirror mode
M92 E510.9
M500
G4 P1
G4 P2
G4 P3

;LAYER_COUNT:80
;LAYER:0
M107
M204 S1175
M205 X9.38 Y9.38
G0 F3600 X31.809 Y179.29 Z0.2
M204 S470
;TYPE:WALL-OUTER

M605 S6 ;enable mirror mode

Is how the BCN3D printers know to switch to Mirror or duplication mode, however that is a custom command created by BCN3D, and not used in any other printer.

As far as additional hardware help - happy to be of assistance, however I do not know exactly how items like your fans are wired, what steps you have tried to troubleshoot problem areas, etc.

@arhi said in Airduct for mosquto hotend:

@sebkritikel nice they got that to the public was not available last time I checked but they talked about it.

ABS has higher Tg so it will work ok with hotter heatbreak but it requires a lot more pressure to extrude and tends to slip from time to time during long prints making extrusion inconsistent, at least in my experience, that's why cooling the heatbreak with outside air or water is imho good idea. I originally just had v6 with air but when I started having issues after 40-50hours of print I moved to outside air and it worked awesome but I had some other issues with it (too much too big hozes) so I moved to water and that was superb + I watercooled the motors too and got system to a much more stable state.

I love sunon but never tried the vapo-bearings in the heated env, no clue how well they perform so I'd appreciate any info you can share (in normal env. they are much quieter than regular, and just tad more loud than maglev)

@ziggymanpopo note that my exp in chamber is with e3dv6 and not with mosquito!!!! mosquito is newer design and might handle this better inside heated chamber, but these solutions that work for e3dv6 would for sure work with mosquito, just might not be required

Both Sunon Vapo-Bearing and CUI omniCOOL (similar, although I'm sure not exactly the same) are often both rated to 70°C, though you should always check the rating on the specific fan.

@arhi said in Airduct for mosquto hotend:

ABS works ok-ish in 70C enclosure, I normally had to reprint the ABS parts operating inside enclosure once every few months (3+), especially the fan duct as 70C enclosure and 270C heat block near the fan duct make fan duct deform after ~1-3 months (depending on how much you print). PETG could not withstand nearly as long as ABS, HIPS was also worse than ABS, I have not tried printing it out of ASA, PC, PA ... I assume PC would work best but never tried as the ducts I was using required support and crazy overhangs I never was able to print with PC reliably.

I'm not sure how well you will be able to cool the mosquito inside enclosure with 70C air, you might want to bring in the outside air to cool it down or use water, I know slice guy's talked about a water cooling adapter for it, dunno if they have one on offer already. (I used water cooling for hotend on mine 70C enclosure printer)

https://www.sliceengineering.com/collections/mosquito-the-professional-hotend/products/mosquito-liquid

ABS seems to tolerate "warmer" heatbreaks (and warmer extruder gears!) than other materials, squirts out of Mosquito hotends just fine in chambers ~65°C, although I have replaced the stock fans with nicer Sunon fans. https://www.digikey.com/en/products/detail/sunon-fans/MF25101V2-1000U-A99/7805272

@Phaedrux said in Bed mesh compensation not applied to all the tools:

@sebkritikel I'll check with DC42 as I really have no idea.

For what its worth, I just tested it on my machine and can confirm G10 Z offsets will interact with with taper values set via M376, similar to what slyvain is seeing.

Duet2 Wifi+Duex5
3.2-beta2 (2020-10-05b2)

Set M376 H15
With T0, with no offsets in G10, moved over built plate at Z=6mm. Could see ballscrews moving for compensation

Put an artificial offset on T1 (IDEX) of G10 P1 Y.22 U.00 5 Z-20

Selected T1, bed moved down to account for Z-20 offset. Still read 6mm.

Moved T1 over build plate - no ballscrew/stepper movement for bed compensation.

Homed all axes, reset T1 offsets to G10 P1 Y.22 U.00 5 Z.3

Moved T1 over build plate (at Z=6mm), could see ballscrews/stepper moving for compensation.

@sylvain said in Bed mesh compensation not applied to all the tools:

Commenting M376 solved the issue !

Thanks !

Very interesting! @Phaedrux if this is truly the cause, I wouldn't say this is expected behavior correct? Expected behavior would be G10 tool offsets having no impacts on mesh taper?

Discussed some here:
https://forum.duet3d.com/topic/18529/input-shapers-klipper/9?_=1602859383989

But I would LOVE to see this implemented in RRF. DAA is useful, but this appears to be much, much more powerful.

@sylvain said in Bed mesh compensation not applied to all the tools:

T-1 and ALL G29 commented => same results...

If it could help, here is the part of gcode file when T3 is selected for the first time :

G1 X199.790 Y94.848 E0.0216
G1 X197.752 Y92.810 E0.1258
G1 X198.247 Y92.810 E0.0216
G1 X199.790 Y94.353 E0.0952
G1 X199.790 Y93.858 E0.0216
G1 X198.742 Y92.810 E0.0647
G1 X199.237 Y92.810 E0.0216
G1 X199.790 Y93.363 E0.0341
G1 X199.790 Y92.868 E0.0216
G1 X199.732 Y92.810 E0.0036
G1 E-4.0000 F4200
; layer 7, Z = 2.167
T3

G91
G1 Z5 F600
G90

G1 X200.600 Y107.666 
; feature outer perimeter
; tool H0.250 W0.010
G1 Z6.667 F120
G1 X99.205 Y91.805 F120
G1 Z1.917 F120
G1 X200.795 Y91.805 E0.1056 F300
G1 X200.795 Y108.195 E0.0170
G1 X99.205 Y108.195 E0.1056
G1 X99.205 Y91.805 E0.0170

When T2 is selected again after T3 bed levelling is running again.

I do not know, I'm sorry. It looks OK to me.

Just conjecture, but G10 and the taper command couldn't possibly be causing this right? I see no reason for that to be the case...

G10 P3 X-0.5	Y36.7	Z-35.26				; T3

I recognize Z-35.26 is necessary.

@sylvain could you try commenting out M376 H15?

@equanimity8 said in Error when setting up independent motor bed levelling on CoreXY:

@sebkritikel By all means! Bear in mind that I have made no changes of my own beyond what was discussed/posted in this thread (except for the fans but I find that irrelevant given the topic) - in other words, the new firmware is an amalgamation of the code cited here. In any case, I will link all relevant code snippets below in the hopes that they serve someone in the future.

config.g
M671 X105:105 Y0:150 S5 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis

The only discernible change I see is the change from S1 to S5 - maybe thats all it took?

old
M671 X105:105 Y0:150 S1 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis

@sylvain said in Bed mesh compensation not applied to all the tools:

@Phaedrux said in Bed mesh compensation not applied to all the tools:

M98 P"config.g"?

=> no error

I will test with all G29 commented.

But as I told you I only use T2 and T3.

How could G29 in T0 or T1 could affect my print ?

All the more the print starts with T2 and bed levelling is active for this first tool.

Keep you updated !

How high (in millimeters) is the object you are printing when the printer changes from T2 to T3?