I want to use 3 Extruders
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@uneumann36 Yes you can do it, but you need to set a few things up. FYI I don't have a hotend like yours, but I do use a multi-tool printer (E3D chimera) - will try and make it relevant for yours.
Step 1 - you need to define the tool change macros that get executed when you switch between Tool 0 & Tool 1. You'll find information on these here:
https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Tool_change_filesYou can set up most of this in the slicer, but I find it more intuitive to put in the printer itself.
I think in tfree0.g & tfree1.g you'll add the retract 30mm (though the amazon product description I read says 45mm!). e.g.
G1 E-30 F300 ; retract 30mm @ 300mm/minI think in tpre0.g & tpre1.g you could put the movement command as the docs suggest, or leave blank
Then in tpost0.g & tpost1.g, you would de-retract the 30mm (or 45mm!). e.g.
G1 E30 F300 ; deretract 30mm @ 300mm/minIn your slicer (I use PrusaSlicer), you will need to setup your printer as a multi-tool (or multi-extruder) printer. That then should open up the settings you need.
In PrusaSlicer, you can import a pair of STLs (one for either tool) and it will allow you to select the tool for either one. It will then put the 'T0' and 'T1' commands in the correct places to switch tool through the print.
You will want to play around with a few of the settings in your slicer (e.g. maybe using a prime tower). You may also need to tweak the tool change macros a bit (e.g. faster/slower retract/unretract, change the distance etc).
It can all be a bit complicated and will take quite a bit of tuning to get it right, but you'll get there
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@engikeneer
Thank your very much for your feedback.Unfortunatly i have not big experiance in programing stuff.
Let me say, in the moment i just can swim a bit.Could you explain me how to do this, what is the exact code for this, and how and where to put it in?
I am sorry for my stupid question.
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Or any other guy can help me?
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I try different things, so i am to stupid to adjust this.
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What part of @engikeneer's excellent reply are you getting stuck on?
You can't expect strangers on the internet to create a perfectly working configuration for your printer. Even if we wanted to, we don't know exactly what you have. You'll need to read and research and learn as you go. We can answer specific questions, but you'll have to give us something to work with.
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@phaedrux
First, i am very sorry for my last comment.
Because i am frustrated why i can´t get this working.
But the explanation of you and your colleagues are super perfect.
Maybe i am to stupid.Maybe i understand this wrong!
I would keep my triple working in two steps.
First, change filament with DWC myself while printing.
If this is working , i can try to do it inside of the slicer.For my better understanding :
It is possible to change the filament while printing?
For example : I print a part that is normal sliced , and with DWC i change the Extruder by hand. And the software pull back the filament automatically the stored length , and the requested Extruder start and extruded the stored length and then continue printing ???? -
@uneumann36 said in I want to use 3 Extruders:
It is possible to change the filament while printing?
For example : I print a part that is normal sliced , and with DWC i change the Extruder by hand. And the software pull back the filament automatically the stored length , and the requested Extruder start and extruded the stored length and then continue printing ????Yes you can change filament during a print. There is even a specific gcode to allow filament changes during a print. M600. Some slicers like prusa slicer allow you to add the M600 at certain layers to do the filament change. But this is a manual process and only really good for changing a color at a layer. This is why printers with multiple tools exist.
In order to use multiple tools you need to define the tools in your slicer and then assign the tools to different parts of the print.
https://www.youtube.com/watch?v=QEYQesc8X2A
This video shows the manual swap process in prusa slicer.This page shows some details on setting up multiple extruders in slicer, which should be pretty similar in prusa slicer still.
https://manual.slic3r.org/expert-mode/multiple-extruders
And maybe a video showing how it's done in a few other slicers as well: https://www.youtube.com/watch?v=xRtvbICRh1w&t=1s
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@phaedrux
Thank you for your excellent reply.There is one more question from me.
So you know i adjust everything like information i had.
So i have 2 tools.
Work it like :
While printing i switch the tool (from one Extruder to other) via DWC,
and automatically the Extruder who is printing pull back filament like adjusted , other Extruder extrude the length like adjusted and continue printing? -
@uneumann36 said in I want to use 3 Extruders:
While printing i switch the tool (from one Extruder to other) via DWC,
and automatically the Extruder who is printing pull back filament like adjusted , other Extruder extrude the length like adjusted and continue printing?Yes, if you set up the tool change macro files to do the retraction and repriming.
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So do i understand right,
i have to fill the folders
and then it is working? -
I mean the tfree , tpre , tpost folders
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Yes you'll likely want to have some commands in there to suit your needs. Think about the tool change process in a very step by step way. What needs to happen to the tool position and filament position on each change? You can use gcode commands in those files to make it do what you want. It can be very minimal.
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Hi Guys
First , yes i get it working !!!!
THANK YOU VERY MUCH FOR ALL OF YOUR HELP , and your patience with me
My problem was, i did not understand for what exactly is tpre , tpre , tpost for.
May you can make a short explanation in the document for what this file does.Because i am not very good in programming.
Please Note, this should not be nagging.So i am very happy that i keep this working, so the next big steps are waiting for me !
This gives me another question :
I am searching for a Slicer who i can easiely can adjust at Layer number 10 swop the extruder, and for exaple at Layer 20 again and so on. (Without stop / break )I know i can so this in Cura, but complicate like mark position on the part , and adjust .....
Do somebody know how to do ?
Again Thank you.
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@uneumann36 Glad to hear you got it working
I've only ever really used Prusaslicer (so can't say if it's better/easier than Cura), but it does have an easy way to change tools as you go up the model. You just add a 'Heightrange Modifier', for each band you want, and tell it which Extruder/Tool you want to use for that band (you have to set up multiple Extruders under the 'Printer Settings' tab first, but that is easy).
Here's an example:
There's also a way you can split out part of an object (e.g. just a corner), but I've not worked out how to do that myself
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@engikeneer said in I want to use 3 Extruders:
Prusaslicer
Sounds good
So can i use the "Prusaslicer" also for an not Prusa printer?
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@uneumann36 yep. It cames with pre-set up profiles for all the prusa printers, but you can define your own (it has a very easy wizard to set you up first time). None of my three printers are Prusa's, I just like the interface and have got used to all the settings.
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Dear Engikeneer , dear Phaedrux and all other helpers.
It works, and i am so happy.
Wow , at the end it was easy when you know how it works.Also thank you Engikeneer for your great tip to use Prusa Slicer.
It is very good, and i will use it ever.Attached my first automatic colored print via Prusa Slicer and my updated Ender5Duet
3 in 1 out printer.This Forum is great.
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Glad you got it working. Persistence pays off.
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Guys , next beer i will spend.
