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A different multi-extrusion approach - UM tool / printhead changer


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Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

I don't have much luck with the E3D ... finally found the energy to get the thing unclogged (which only worked by taking it apart and  by heating it up without the hot end cooling....) and started to put it back together again... securing the nozzle at 250c was not even putting a lot of force on it and the nozzle just broke of ... original E3D 0.4 nozzle....

 

Finally had some time to look at it again. I managed to save the block but had to damage the heat-break thread to get it out, after the heat-break was out i got the half nozzle out with the tool GR5 suggested. Already received spare parts, spend a shitload on E3D stuff so hopefully I'll get it working...

edit; ohh, and the E3D guy's told me i must have used too many force as there material would never fail :)but they gave me 18 pounds anyhow ... which is basically a heat-break + shipping..

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Any luck with the e3d ultiarjan? I'm trying again, e3d sent me a new kit, and i got a spare heat break for the no.2 unit. I have updated my design to improve the cooling, and designed the second head to be height adjustable. So, the e3d....I have managed to print a robot, but whenever I try a longer print, I get a blockage still. Its super frustrating as i'm convinced the design is good. I am trying now with a different bowden tube (the other one i was trying had large ID). If that fails, the last thing i'll try before giving up, is a drop of oil in the bowden tube. I'm reluctant to do this as not sure if it will affect the strength of the prints. So close yet so far!

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

     

    I wonder why you'd prefer rails over shafts & linear bearings.

     

    I'm playing with the same idea, basically the H setup like in the Builder. I'm just still in doubt if I want to go for two motors/heads mounted on it (like the BCN sigma) or to stick with the magnetic mounts... I think I'll start playing with both ideas in CAD first.

     

    Even one week after finishing the strike German Post is not up-to-date with its delivery and so I'm still waiting for belts and pulleys. Otherwise I'd soon be able to report on a first test of the x/y gantry. I went for linear rails basically because I'm lazy (simply bolts on to laser cut metal parts) and many printer manufacturers use them as well.

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Any luck with the e3d ultiarjan? I'm trying again, e3d sent me a new kit, and i got a spare heat break for the no.2 unit. I have updated my design to improve the cooling, and designed the second head to be height adjustable. So, the e3d....I have managed to print a robot, but whenever I try a longer print, I get a blockage still. Its super frustrating as i'm convinced the design is good. I am trying now with a different bowden tube (the other one i was trying had large ID). If that fails, the last thing i'll try before giving up, is a drop of oil in the bowden tube. I'm reluctant to do this as not sure if it will affect the strength of the prints. So close yet so far!

     

    Have not jet had the time to test again, was planning to design a height adjustable mount this weekend but something came up and I wont be home all weekend... It will have to wait again...

    I was wondering about the retraction that seems to cause the pla to get stuck in the heat break, I can set the normal retraction to 2 mm, but we should probably also set the retraction at the end of a print (and tool change) very low ? Please let me know what you tried and your results...

    And I wonder if things get easier if we try with pet or XT ?

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    Ok, so I don't want to jinx it, but I seem to have a working setup. I was tearing my hair out over it yesterday, and tried one last thing before giving up. The key seemed to be for me, adding a few drops of oil. I pulled the bowden out of the e3d, added two or three drops of oil, and put it back together. I've printed a couple of 2h plus prints so far, and not had a failure. To say i'm happy would be an understatement! This is with PLA by the way, can't see XT being a problem now either. I'll keep updating. Just printed my tool holder, not quite right so tweaked it a bit, and now printing again. Fingers crossed the e3d system is close to being complete! Nylon and PEEK prints coming up!!

    PS my retraction is also at 2mm

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Any problems with the larger retraction between prints? Can you do a cold pull pull / atomic? At what temp?

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    I've not needed to do any atomic pulls, no blockages yet (fingers cross i won't get any more). Not sure on the retraction question...I daren't change anything now its working! I'll get the setup complete and working (with the two heads), then try adjusting reaction settings.

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    So tonight I'm ready to do the repeat accuracy test with one head (park and resume). Can someone give me some instruction on how to edit the gcode? I know to do it in text edit with lookup and replace commands, but not sure where to insert etc. Also, how did you find the right coordinates for the head parking? From the ulticontroller? and finally, what is the 'F' command in the gcode before the XY coordinates?

    Thanks

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    I can't help you with the important answers but "F" stands for feedrate and is in mm/minute so it is 60X larger than mm/sec. For example 50mm/sec is a F3000.

    It's the requested speed of ALL axes but since all moves are linear and E axis (extruder) moves the smallest amount the extruder rarely actually moves at the feedrate unless it is moving by itself.

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    For a park and resume test I'd insert the gcode every layer change. There should be some comments in the generated gcode which indicate a new layer. And yes, I figured out the commands using the ulticontroller.

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Also, how did you find the right coordinates for the head parking?

     

    I started by just trying with manual created Gcode, getting closer step by step, this was a pain ... I later did it by controlling the printer directy from Simplify3D, you can just enter lines of Gcode and the head moves directly. There are free alternative, I believe "pronterface" ? but I never used it..

    Also in Simplify3D you can automatically have the change code inserted into the code, I think I explained on around page 27 of this thread (if memory serves me well...).

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    IM SO FRUSTRATED! So close, but i can't get this damn gcode right. So this is what I've written to test the head change accuracy, which works:

    ;LAYER

    G92 E0

    G1 E-2.5

    G92 E0

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G1 F200 E2.5

    G92 E0

    ;FINISH

    So in the gcode, I did a look up for ';LAYER', and inserted the above. This works fine too. However when it uses the above code, after going back to the print, it does a huge rapid retraction, maybe 20-40mm or something, its crazy. I can't work out why its doing it, can anyone here help?

    This is the beginning few layers of the gcode :

    M190 S70.000000

    M109 S218.000000

    ;Sliced at: Mon 13-07-2015 17:37:18

    ;Basic settings: Layer height: 0.2 Walls: 0.4 Fill: 100

    ;Print time: 13 minutes

    ;Filament used: 0.305m 2.0g

    ;Filament cost: None

    ;M190 S70 ;Uncomment to add your own bed temperature line

    ;M109 S218 ;Uncomment to add your own temperature line

    G21 ;metric values

    G90 ;absolute positioning

    M82 ;set extruder to absolute mode

    M107 ;start with the fan off

    G28 X0 Y0 ;move X/Y to min endstops

    G28 Z0 ;move Z to min endstops

    G1 Z15.0 F9000 ;move the platform down 15mm

    G92 E0 ;zero the extruded length

    G1 F200 E3 ;extrude 3mm of feed stock

    G92 E0 ;zero the extruded length again

    G1 F9000

    ;Put printing message on LCD screen

    M117 Printing...

    ;Layer count: 50

    ;LAYER

    G92 E0

    G1 E-2.5

    G92 E0

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G1 F200 E2.5

    G92 E0

    ;FINISH0

    M107

    G0 F9000 X67.588 Y29.055 Z0.300

    ;TYPE:SKIRT

    G1 F1200 X85.228 Y29.055 E0.33182

    G1 X85.228 Y9.055 E0.70803

    G1 X92.128 Y9.055 E0.83782

    G1 X92.128 Y29.055 E1.21403

    G1 X105.727 Y29.055 E1.46984

    G1 X105.727 Y9.055 E1.84605

    G1 X112.627 Y9.055 E1.97584

    G1 X112.627 Y29.055 E2.35205

    G1 X132.627 Y29.055 E2.72826

    G1 X132.627 Y35.955 E2.85806

    G1 X112.627 Y35.955 E3.23427

    G1 X112.627 Y48.555 E3.47128

    G1 X132.627 Y48.555 E3.84749

    G1 X132.627 Y55.455 E3.97729

    G1 X112.627 Y55.455 E4.35350

    G1 X112.627 Y75.455 E4.72971

    G1 X105.727 Y75.455 E4.85950

    G1 X105.727 Y55.455 E5.23571

    G1 X92.128 Y55.455 E5.49152

    G1 X92.128 Y75.455 E5.86773

    G1 X85.228 Y75.455 E5.99752

    G1 X85.228 Y55.455 E6.37373

    G1 X67.588 Y55.455 E6.70555

    G1 X67.588 Y48.555 E6.83534

    G1 X85.228 Y48.555 E7.16716

    G1 X85.228 Y35.955 E7.40417

    G1 X67.588 Y35.955 E7.73599

    G1 X67.588 Y29.055 E7.86578

    G1 F2400 E5.86578

    G0 F9000 X70.988 Y32.455

    ;TYPE:WALL-OUTER

    G1 F2400 E7.86578

    G1 F1200 X88.628 Y32.455 E8.19760

    G1 X88.628 Y12.455 E8.57381

    G1 X88.728 Y12.455 E8.57570

    G1 X88.728 Y32.455 E8.95191

    G1 X109.127 Y32.455 E9.33562

    G1 X109.127 Y12.455 E9.71183

    G1 X109.227 Y12.455 E9.71371

    G1 X109.227 Y32.455 E10.08993

    G1 X129.227 Y32.455 E10.46614

    G1 X129.227 Y32.555 E10.46802

    G1 X109.227 Y32.555 E10.84423

    G1 X109.227 Y51.955 E11.20915

    G1 X129.227 Y51.955 E11.58537

    G1 X129.227 Y52.055 E11.58725

    G1 X109.227 Y52.055 E11.96346

    G1 X109.227 Y72.055 E12.33967

    G1 X109.127 Y72.055 E12.34155

    G1 X109.127 Y52.055 E12.71776

    G1 X88.728 Y52.055 E13.10148

    G1 X88.728 Y72.055 E13.47769

    G1 X88.628 Y72.055 E13.47957

    G1 X88.628 Y52.055 E13.85578

    G1 X70.988 Y52.055 E14.18760

    G1 X70.988 Y51.955 E14.18948

    G1 X88.628 Y51.955 E14.52130

    G1 X88.628 Y32.555 E14.88622

    G1 X70.988 Y32.555 E15.21804

    G1 X70.988 Y32.455 E15.21992

    G1 F2400 E13.21992

    G0 F9000 X88.728 Y32.555

    G1 F2400 E15.21992

    G1 F1200 X88.728 Y51.955 E15.58485

    G1 X109.127 Y51.955 E15.96856

    G1 X109.127 Y32.555 E16.33349

    G1 X88.728 Y32.555 E16.71720

    ;LAYER

    G92 E0

    G1 E-2.5

    G92 E0

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G1 F200 E2.5

    G92 E0

    ;FINISH1

    M106 S153

    G0 F9000 X88.728 Y32.555 Z0.500

    ;TYPE:WALL-OUTER

    G1 F1320 X88.728 Y51.955 E16.96049

    G1 X109.127 Y51.955 E17.21630

    G1 X109.127 Y32.555 E17.45958

    G1 X88.728 Y32.555 E17.71539

    G0 F9000 X88.728 Y32.455

    G1 F1320 X109.127 Y32.455 E17.97120

    G1 X109.127 Y12.455 E18.22201

    G1 X109.227 Y12.455 E18.22327

    G1 X109.227 Y32.455 E18.47407

    G1 X129.227 Y32.455 E18.72488

    G1 X129.227 Y32.555 E18.72613

    G1 X109.227 Y32.555 E18.97694

    G1 X109.227 Y51.955 E19.22023

    G1 X129.227 Y51.955 E19.47103

    G1 X129.227 Y52.055 E19.47229

    G1 X109.227 Y52.055 E19.72309

    G1 X109.227 Y72.055 E19.97390

    G1 X109.127 Y72.055 E19.97516

    G1 X109.127 Y52.055 E20.22596

    G1 X88.728 Y52.055 E20.48177

    G1 X88.728 Y72.055 E20.73258

    G1 X88.628 Y72.055 E20.73384

    G1 X88.628 Y52.055 E20.98464

    G1 X70.988 Y52.055 E21.20586

    G1 X70.988 Y51.955 E21.20711

    G1 X88.628 Y51.955 E21.42832

    G1 X88.628 Y32.555 E21.67160

    G1 X70.988 Y32.555 E21.89282

    G1 X70.988 Y32.455 E21.89407

    G1 X88.628 Y32.455 E22.11528

    G1 X88.628 Y12.455 E22.36609

    G1 X88.728 Y12.455 E22.36734

    G1 X88.728 Y32.455 E22.61815

    ;LAYER

    G92 E0

    G1 E-2.5

    G92 E0

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G1 F200 E2.5

    G92 E0

    ;FINISH2

    G0 F9000 X88.728 Y32.455 Z0.700

    ;TYPE:WALL-OUTER

    G1 F1500 X109.127 Y32.455 E22.87396

    G1 X109.127 Y12.455 E23.12477

    G1 X109.227 Y12.455 E23.12602

    G1 X109.227 Y32.455 E23.37683

    G1 X129.227 Y32.455 E23.62764

    G1 X129.227 Y32.555 E23.62889

    G1 X109.227 Y32.555 E23.87970

    G1 X109.227 Y51.955 E24.12298

    G1 X129.227 Y51.955 E24.37379

    G1 X129.227 Y52.055 E24.37505

    G1 X109.227 Y52.055 E24.62585

    G1 X109.227 Y72.055 E24.87666

    G1 X109.127 Y72.055 E24.87791

    G1 X109.127 Y52.055 E25.12872

    G1 X88.728 Y52.055 E25.38453

    G1 X88.728 Y72.055 E25.63534

    G1 X88.628 Y72.055 E25.63659

    G1 X88.628 Y52.055 E25.88740

    G1 X70.988 Y52.055 E26.10861

    G1 X70.988 Y51.955 E26.10987

    G1 X88.628 Y51.955 E26.33108

    G1 X88.628 Y32.555 E26.57436

    G1 X70.988 Y32.555 E26.79558

    G1 X70.988 Y32.455 E26.79683

    G1 X88.628 Y32.455 E27.01804

    G1 X88.628 Y12.455 E27.26885

    G1 X88.728 Y12.455 E27.27010

    G1 X88.728 Y32.455 E27.52091

    G0 F9000 X88.728 Y32.555

    G1 F1500 X88.728 Y51.955 E27.76419

    G1 X109.127 Y51.955 E28.02000

    G1 X109.127 Y32.555 E28.26329

    G1 X88.728 Y32.555 E28.51910

    ;LAYER

    G92 E0

    G1 E-2.5

    G92 E0

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G1 F200 E2.5

    G92 E0

    ;FINISH3

    G0 F9000 X88.728 Y32.555 Z0.900

    ;TYPE:WALL-OUTER

    G1 F1620 X88.728 Y51.955 E28.76238

    G1 X109.127 Y51.955 E29.01819

    G1 X109.127 Y32.555 E29.26148

    G1 X88.728 Y32.555 E29.51729

    G0 F9000 X88.728 Y32.455

    G1 F1620 X109.127 Y32.455 E29.77310

    G1 X109.127 Y12.455 E30.02391

    G1 X109.227 Y12.455 E30.02516

    G1 X109.227 Y32.455 E30.27597

    G1 X129.227 Y32.455 E30.52677

    G1 X129.227 Y32.555 E30.52803

    G1 X109.227 Y32.555 E30.77884

    G1 X109.227 Y51.955 E31.02212

    G1 X129.227 Y51.955 E31.27293

    G1 X129.227 Y52.055 E31.27418

    G1 X109.227 Y52.055 E31.52499

    G1 X109.227 Y72.055 E31.77580

    G1 X109.127 Y72.055 E31.77705

    G1 X109.127 Y52.055 E32.02786

    G1 X88.728 Y52.055 E32.28367

    G1 X88.728 Y72.055 E32.53448

    G1 X88.628 Y72.055 E32.53573

    G1 X88.628 Y52.055 E32.78654

    G1 X70.988 Y52.055 E33.00775

    G1 X70.988 Y51.955 E33.00900

    G1 X88.628 Y51.955 E33.23022

    G1 X88.628 Y32.555 E33.47350

    G1 X70.988 Y32.555 E33.69471

    G1 X70.988 Y32.455 E33.69596

    G1 X88.628 Y32.455 E33.91718

    G1 X88.628 Y12.455 E34.16798

    G1 X88.728 Y12.455 E34.16924

    G1 X88.728 Y32.455 E34.42005

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    If you read the info from ultiarjan or my pdf about how to insert the tool change I think you can get the picture of how to do it.

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    Ok now I understand my mistake. It appears that the extrusion code is cumulative, so when it retracts for example by 2mm, it goes from 56mm (cumulative) to 54mm, then back to 56 after the X/Y steps have been completed. So the question is then, how on earth do you manually add retractions into gcode in cure?

    Here is extract showing this retraction in action:

    G1 X77.783 Y32.384 E7.86578

    G1 F2400 E5.86578

    G0 F9000 X81.183 Y35.784

    ;TYPE:WALL-OUTER

    G1 F2400 E7.86578

    Edited by Guest
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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    If you read the info from ultiarjan or my pdf about how to insert the tool change I think you can get the picture of how to do it.

     

    Cheers I had a look at that, but i'm using cura and just for now want to manually add the code with retraction, that the bit i'm super struggers with.

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    Cura has retraction for dual extruders at least the non-wipeout-style-new-beta

    Edited by Guest
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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    also Simplify3D lets you specifically set the retract setting for toolchange

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Indeed simplify3d has everything to make this dual extrusion work. Specially since the last 3.0 version. I'm getting soo sweet prints. Well not sweet but nice since I have a banana rod :D but it does the job

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    Cheers I had a look at that, but i'm using cura and just for now want to manually add the code with retraction, that the bit i'm super struggers with.

     

    Wait a minute... if i get you right, this is just a test for your tool changer.

    You want to achieve a tool change on every layer (independent of any toolchange command).

    And you're looking for an easy way to integrate a retraction (without the need to struggle with the current E-position), right?

    My suggestions are:

     

    • you definitly don't want to zero the e-position between layers... :)- remove the "G92 E0" lines - that's the main source of your problem

    • if possible - remove the "G1 E..." commands too and use firmware retractions instead "G10" resp. "G11"

    • or switch on (temporary) relative positioning ("G91 G1 E-2.5 G90" resp. "G91 G1 E2.5 G90")

     

    This should do the trick.

    ;LAYER

    G10

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G11

    ;FINISH

    ;LAYER

    G91

    G1 E-2.5

    G90

    G0 F9000 X100.000 Y180.000

    G0 F9000 Y192.7

    G0 F9000 X64.000

    G0 F3000 X16.000

    G0 F5000 Y100.000

    G0 F5000 X100.000 Y100.000

    G0 F5000 X16.000

    G0 F9000 Y180.000

    G0 F3000 Y192.700

    G0 F3000 X64.000

    G0 F9000 X100

    G91

    G1 F200 E2.5

    G90

    ;FINISH

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Feels more like slowprototyping the last weeks, but at least there's a little progress...

    The top & bottom part can slide a few mm for height adjustment, and fixed in place with the 2 screws. The E3D head is fixed in the bottom part, so fans always stay i at the same height vs the nozzle. Design is based on the original E3D fanholder (the .step is on thingiverse) I made it a bit stronger ;) and one side broke during mounting... XT is rather brittle... I'm starting to think more & more I should start printing ABS ...

    proto3b.thumb.jpg.6ebff962e9ffdb4085e4c76724457508.jpg

    proto3a.thumb.jpg.65489ca84b31ff1b305e985e474729ca.jpg

    I just quickly drew the fanducts, actualy its version2, the first ones limited the airflow to much... curious to see how they will perform during printing..

    proto3b.thumb.jpg.6ebff962e9ffdb4085e4c76724457508.jpg

    proto3a.thumb.jpg.65489ca84b31ff1b305e985e474729ca.jpg

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    ...and one side broke during mounting... XT is rather brittle... I'm starting to think more & more I should start printing ABS ...

    proto3b.thumb.jpg.6ebff962e9ffdb4085e4c76724457508.jpg

    proto3a.thumb.jpg.65489ca84b31ff1b305e985e474729ca.jpg

    ...

     

    I don't mean to offend, but the design IS kind of breakaway; doesn't really look like an issue with material properties. You could make those tabs a bit thicker. Turning them by 90 deg might not be a bad idea as well (not sure if there is enough space, though).

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    ha ha, no offense taken at all...failure is just part of learning something..... but the tabs are not the issue, the side that clamps over the cooling ribs broke of as it's bending outwards during mounting.... I'm sure it would be no problem in PLA or ABS as it's a bit more flexibel, XT really is brittle.

    I did just rotate the tabs to be able to make the sides a bit thinner (to make them more flexible during mounting), but it also makes the mounting of screws easier. I'll try to do another print in XT tomorrow...

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    Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

    Thanks for the suggestions guys. Tinkergnome, i'll give that a go tonight. I did try using the G10 G11 commands, but for some reason they didn't work. Does the gcode need a reference in it somewhere for the standard retract length at the beginning for it to work?

    All in all though, sounds like simplify3d is the way to go with this setup for full functionality, at least until Cura catches up (if the ultimaker team find these developments interesting enough). I'll start using simplify3d once i've confirmed the repeat accuracy.

    Ultiarjan, what settings are you using for XT? I found layer adhesion wasn't very good until I started to print around 248 degrees. But yea, its a little more brittle. However I've printed flexible clip on parts without issue.

    Edited by Guest
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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    Uh ... I didn't see that. It looked like only half the tab was missing

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    Posted · A different multi-extrusion approach - UM tool / printhead changer

    A quick photo of my (now tested and working!) setup with one extruder for now. I'm printing the height adjustable unit tonight which will sit on the back right of the machine.

    Printer.thumb.jpg.7fde4f72ce79a2d76da7f6bb75ffb5c0.jpg

    Printer.thumb.jpg.7fde4f72ce79a2d76da7f6bb75ffb5c0.jpg

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