Dual extrusion

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    Profile photo of chris893

    What are some good options for dual extrusion?

    I am mainly wanting to print parts with the dissolvable support material. I was hoping to go non-Bowden style but will if it’s the best choice.

    I saw the E3D chimera and liked it but it’s pricey for just a hot end.

    I’m aware that I will lose some build volume with this as well and haven’t decided if I would be better off with a dedicated mpcnc or not. But I definitely need another printer and dual extrusion capabilities.

    Profile photo of Bill

    The MK8 dual extruders that I have seen all are configured such that mounted on the MP3DP they’d extend along the Y axis, which would likely create enough of a side load on the X axis that you’d run into real alignment problems. Mounting them sideways in relation to the current extruder would alleviate that somewhat, but it’d be a much larger redesign of the mount and would either be two pieces bolted together or fairly hard to print. I haven’t looked at other extruder designs yet…

    Profile photo of chris893

    I may have to go Bowden style then. I’m just not familiar with them and wanted to minimize variables switching to dual extrusion, I know the main benefit is taking weight off the moving parts so it should allow me to print faster. I always print at 30-35mm/s though for quality. I’m too worried that if I go much faster it’ll skip some steps while I’m away, wasting my time and materials.

    Profile photo of Ryan

    If you go bowden mount the motors on the gantry and use short tubes. There are a few out there with 2’+ bowden tubes and they must be a nightmare to retract.

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