<![CDATA[SoliForum - 3D Printing Community — Dual Extrusion with 3.0mm and 1.75mm]]> https://www.soliforum.com/topic/10445/dual-extrusion-with-30mm-and-175mm/ Tue, 17 Mar 2015 22:57:20 +0000 PunBB <![CDATA[Re: Dual Extrusion with 3.0mm and 1.75mm]]> https://www.soliforum.com/post/89962/#p89962 This is true, E steps-per-mm is shared between axes in Marlin. Marlin development version is fixing this at the moment though, so if you're ready to experiment with a pretty wild version of Marlin, you may get what you're looking for. Check out the github page and have a look. smile

]]> Tue, 17 Mar 2015 22:57:20 +0000 https://www.soliforum.com/post/89962/#p89962 <![CDATA[Re: Dual Extrusion with 3.0mm and 1.75mm]]> https://www.soliforum.com/post/89914/#p89914 Marlin doesn't let you set steps per mm per extruder axis? I guess that *is* true... Good looking out because I was about to suggest something that will not work tongue

Perhaps with a geared setup running in Bowden you could get the steps per mm for each axis very close, if not identical. Just a thought. If you can drive both extruders with the same hobbed bolt, or at least one with the same OD, I *think* your steps per mm would be the same for each extruder, but I may be thinking incorrectly.

If you can't overcome this hurdle and not get the steps per mm equal, I would suggest not even wasting your time. The results would be... less than ideal.

]]> Tue, 17 Mar 2015 16:30:57 +0000 https://www.soliforum.com/post/89914/#p89914 <![CDATA[Re: Dual Extrusion with 3.0mm and 1.75mm]]> https://www.soliforum.com/post/89908/#p89908 I am certainly not the expert with this but I can say that with dual extrusion both steppers need to run at the same calibrated steps/mm.  Since I have little experience with 3mm filament I don't know how close the two would be.  It may be possible to split the difference and make up for that difference in the extrusion multiplier within your slicer.  Either way it seems like a good way to make a complicated process even more difficult.  I would consider just getting another 1.75 hot end.

]]> Tue, 17 Mar 2015 15:21:23 +0000 https://www.soliforum.com/post/89908/#p89908 <![CDATA[Dual Extrusion with 3.0mm and 1.75mm]]> https://www.soliforum.com/post/89897/#p89897 I find myself in possession of 1x 3.0mm J-head and 1x 1.75mm J-head, both with a 0.5mm end on them. Is there reason I cannot use them in a dual extrusion set-up. Are there any problems I might face? Theoretically to me , as long as the filament is coming out the same diameter, and I am able to set the firmware for each separately--it should work.

]]> Tue, 17 Mar 2015 13:25:43 +0000 https://www.soliforum.com/post/89897/#p89897