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  1. #1

    Duel Color single hot end.

    I am modifying my printer to utilize duel extrusion....but with only one hot end. I was an investor in a kickstarter project call Prometheus. I don't know if they ever shipped anything, but I got my money back and decided I could build the system myself and so I did. I just completed the high power Bowden extruders. They use a 5:1 geared stepper motor along with a very large gear. The extruders are aluminum and will mount on my x-axis carriage. They will move up and down with the Z axis so the Bowden tubing length is held to a minimum. The filament "V" guide is something I made so if you want the files, let me know.







    #136 Craig Anderson, Yesterday at 1:13 PM

  2. #2
    I am modifying my printer to utilize duel extrusion....but with only one hot end. I was an investor in a kickstarter project call Prometheus. I don't know if they ever shipped anything, but I got my money back and decided I could build the system myself and so I did. I just completed the high power Bowden extruders. They use a 5:1 geared stepper motor along with a very large gear. The extruders are aluminum and will mount on my x-axis carriage. They will move up and down with the Z axis so the Bowden tubing length is held to a minimum. The filament "V" guide is something I made so if you want the files, let me know.

  3. #3
    Engineer Marm's Avatar
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    I was going to make a lame joke bout the dueling colors. But seeing what you have made, I'm pretty sure Duel is way more appropriate than Dual. I see a lot of issues with it, but I'd assume you've worked past the obvious ones already. I'm looking forward to seeing this work.

    Is it feeding two thinner filaments into a larger head simultaneously, or stopping one color and running the other?

  4. #4
    The V filament guide allows the printer to print with one of two materials at a time. Both are 1.75 mm.

  5. #5
    I am mounting the extruders today and will start testing. This method has been used by many others, this is just my example.

  6. #6
    Staff Engineer Davo's Avatar
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    Marm, that wouldn't have been lame at all!

  7. #7
    Super Moderator curious aardvark's Avatar
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    Most of the succesful 2 in 1 sustems I've seen use a needle valve to switch between the two filaments to stop merging. How are you planning on seperating the filament at the nozzle end ?

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