@dc42 I dont know why i didn't think about backlash. commented out the extra z movments and perfect!
Thank you.

@fcwilt send an email to the email address @elmoret gave you, with the details he asked for, and he’ll send you a pre-paid shipping label.

Ian

@arkaboy I think this is still true:

There are currently no commercially available mixing hot ends that truly mix

At least in the accessibly priced space for FDM. I am actually not away of that for any FDM hotends.

Anyone care to look this over for glaring errors?
It does spit out a valid grid for me, and expands toward start of x and/or y if you go beyond bed edge max

;--- Start adaptive mesh probing ; this defines a minimum size of 60x60 mm grid for probing if your print is too small, with 20 mm between probes. if you have placed your print items too near the print bed end, we move probe area, so we don't probe outside the print bed. {if first_layer_print_size[0] > 60 and first_layer_print_size[1] > 60 }M557 X{first_layer_print_min[0]}:{first_layer_print_max[0]} Y{first_layer_print_min[1]}:{first_layer_print_max[1]} S20 {else }M557 X{ if first_layer_print_min[0]+60 < print_bed_max[0]}{ first_layer_print_min[0]}:{first_layer_print_min[0]+60}{ else}{ first_layer_print_max[0]-60}:{first_layer_print_max[0]}{ endif} Y{ if first_layer_print_min[1]+60 < print_bed_max[1]}{ first_layer_print_min[1]}:{first_layer_print_min[1]+60}{ else}{ first_layer_print_max[1]-60}:{first_layer_print_max[1]}{ endif}{ endif} G29 S0 ;--- Stop adaptive mesh probing

@Pyper yeah and you can see a pretty neon-ish/pink leaning light/muted color palette on the print sample (-:

@vbtalent2 - You are correct in thinking there are a lot of variables you can control and knowing where to begin can be challenging. With PrusaSlicer, using the Beginner, Normal, and Expert modes can help. If you turn on Expert mode, all of the controls are shown, and they are color coded (Green for beginner, Yellow for normal, and Red for expert) so you can see what available and know which are usually important.

For making temperature towers, Prusa Slicer lets you insert your own gcode in sliced files in various places. In the Printers tab, under Custom G-code, there is a place where you can put some gcode that will be inserted every time a layer change happens. In this space you can add code that follows the Prusa coding conventions (https://help.prusa3d.com/article/macros_1775) and will change parameters for you. Here's an example I made for a Pressure Advance tower. It looks at a Prusa variable called layer_num and when it hits different values it inserts an M572 command to change the PA value. You can easily put a different gcode in to change the nozzle value (or just about anything else).

{if layer_num == 0} ;PA_tweaks - START M572 D0 S.028 ; Adjust pressure advance ;PA_tweaks- END {elsif layer_num == 25} ;PA_tweaks- START M572 D0 S0.03 ; Adjust pressure advance ;PA_tweaks- END {elsif layer_num == 50} ;PA_tweaks- START M572 D0 S0.035 ; Adjust Pressure advance ;PA_tweaks- END {elsif layer_num == 75} ;PA_tweaks- START M572 D0 S0.040 ; Adjust Pressure advance ;PA_tweaks- END {elsif layer_num == 100} ;PA_tweaks- START M572 D0 S0.044 ; Adjust Pressure advance ;PA_tweaks- END {elsif layer_num == 125} ;PA_tweaks- START M572 D0 S0.048 ; Adjust Pressure advance ;PA_tweaks- END

{endif}

@Fred55 they look fine as they have low inductance and phase resistance.
This is a good page to read https://docs.duet3d.com/en/User_manual/Connecting_hardware/Motors_choosing

@o_lampe Thanks.
These aren't brass water connectors. That would be too heavy! 😉
They are from coated titanium.

EDIT: I tried to save weight where it is possible. I used aluminium bolts to mount the parts on the effector. Next time it would be suffizient to machine the effector in a "L-shape" instead of a "U-shape". Actually it is more than stiff enough and that would be safing much weight.

@o_lampe said in AuruMMS - multi colour/material unit running on Duet:

Hope to see more of your machine in the future.

Reply

The cutter is independent - on the extruder in this case similar to Bambu/Voron setups.
Also have designed actuator activated cutter that can sit just above the extruder 🙂

@janjoh another way would be to use the M665 XYZ parameters to rotate the XY plane.

@Arminas A lot of work I know, but try swapping the toolboards over between the two machines? See if the problem moves or not?

@Arminas said in What could cause this kind of artefacts on surface?:

Is it safe to use 2.4A for drivers on Duet2?

I've used 6-wire NEMA23 with Duet2. I wired them to have the highest torque and it was no problem with Duet2.
A little cooling fan for the back of the board won't hurt.

So I should have looked closer at the gcode before but it's actually quite messy so there could be this

97905788-714c-46b3-a7f5-e6eb8f4afddb-image.png
de1106f6-476d-4b08-985d-8b43597d5164-image.png

Anyway I setup a wipe tower for both extruders. Created a 40mm wide, .4mm thick pipe, sliced it in the place i want the wiping to happen with the two extruders separately, extracted the gcode for 1 layer for each, deleting the G1 Zx.xx instructions, and created a macro called wipetower.g executed on every tool changes. In the macro depending on the tool selected it will extrude the corresponding circles (2 lines wide for .2mm nozzle and 1 for .4mm) at the designated place.
Will test and report

I also redesigned the cooling system that i was not really happy with, should be much better

I'll definitely look into having smoother walls for the organic support but I don't think we have much control over this...

@Candleon261990abx said in flash Forge adventure 3:

How do I, make my printer become consistent.

Add detail. eg https://forum.duet3d.com/post/53522

Ian

@oliof Hi. would you mind taking a look at my X axis graph? It looks bad, but on the other hand, the amplitude is very low.Y.JPG X.JPG I took this measurement without "capture data during the whole length of move". Y axis looks beautiful.

@o_lampe Sounds like me! Well, the 'small body' bit, anyway.

Ian

@Oscar did you do the conversion? I'm just printing all parts to start it. I think the duet wifi is more than appropriate to run the CoreXY config.

Could be some challenge to set it up though as I have to go through all the config again.