Dual Filament

Building your RailCore and having questions or issues?

Topic author
sparent39
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Joined: Tue Jan 01, 2019 10:56 pm

Dual Filament

Post by sparent39 » Fri Jan 04, 2019 7:31 pm

Hi all,

I have another question before deciding on this kit. Has anyone installed a second hot end for dual filament prints? My intent is to print support material for some parts that requires it.

Thank You




Emparus
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Post by Emparus » Fri Jan 04, 2019 8:11 pm

I am working a Y carriage to use the Bondtech BMG-X2 EXTRUDER which I think would be the best option. But testing is sometime off as I wait to see how Tony makes out with the E3D tool changer integration.


Emparus
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Post by Emparus » Sat Jan 19, 2019 5:51 pm

Finished design of a Railcore II Y carriage for Dual extrusion using the Bondtech BMG-X2 EXTRUDER and E3D Chimera. thing:3367107


dc42
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Joined: Fri Sep 28, 2018 8:25 pm

Post by dc42 » Tue Jan 22, 2019 8:47 pm

It's also possible to make a CoreXY IDEX machine, although I don't know whether anyone has done that with a Railcore yet.


Emparus
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Post by Emparus » Tue Jan 22, 2019 10:06 pm

I guess, it would be possible. But alining the precise nozzle height would be rather difficult on two independent heads. 2 additional motors with opposite belt train would do it. But also here the question is how to precisely align the xy coordinates ?


dc42
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Post by dc42 » Thu Jan 24, 2019 11:28 pm

You don't need to get the nozzle heights the same for dual media printing because you can configure tool Z offsets, but you do need to get the heights very close if you want to do ditto or mirror printing.

Aligning multiple nozzles in X and Y is usually done by printing a vernier pattern, from which the required tool offsets can be determined and configured.


PlasticMetal
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Post by PlasticMetal » Fri Jan 25, 2019 12:03 am

David - just a quick note to thank you for visiting this forum. You've been a big help to me over on your Duet forum. I honestly don't know where you find the time for all your activities.

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