I have seen the MarlinX2 firmware but I am a little lost on how exactly it works. I would like to be able to have a pair of gantries independently controlled on X and Y, each with an extruder but sharing the same Z axis. This would allow printing of two different objects at the same time. Each extruder would build the layer for a given object and when both finished, the layers would change in Z. I am seeing people that have used dual X carriages but they run one after another as opposed to simultaneously. Is there something I am missing or has this not been done with two independent X Y axis? https://reprap.org/forum/read.php?1,630401,630401#msg-630401 Mon, 16 Mar 2026 10:37:57 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,630401,630446#msg-630446 https://reprap.org/forum/read.php?1,630401,630446#msg-630446 I can tell you that i underestimated the forces involved when two printheads are moving, like for me in clone mode.
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Having them move independently in X and Y will require a very sturdy frame or low speed.
If your goal isn't to print one object with different materials, i would go with two machines instead.]]> Srek General Tue, 23 Feb 2016 01:35:29 -0500 https://reprap.org/forum/read.php?1,630401,630427#msg-630427 https://reprap.org/forum/read.php?1,630401,630427#msg-630427
That's an exotic concept for which you're probably going to have to do most of the footwork yourself. With seven independent axes I'd think you'd need to repurpose a Duet and Duex4 or do a master and slave Melzi arrangement like RepRapPro did with their older TriColours. I'd definitely think you're looking at custom firmware, then developing a serious g-code postprocessor to address two independent x and y axes and extruders without causing collisions.]]> IMBoring25 General Mon, 22 Feb 2016 23:51:12 -0500 https://reprap.org/forum/read.php?1,630401,630425#msg-630425 https://reprap.org/forum/read.php?1,630401,630425#msg-630425
I'd be curious to see the mechanical side of 2 independent x and y axis. I can't think of a way to do it without interfering with one another.]]> gmh39 General Mon, 22 Feb 2016 23:21:28 -0500 https://reprap.org/forum/read.php?1,630401,630401#msg-630401 https://reprap.org/forum/read.php?1,630401,630401#msg-630401 vulcanrd General Mon, 22 Feb 2016 20:03:38 -0500