Dual extruder

rsilvers · Post by **rsilvers** » Wed Apr 09, 2014 11:08 pm

When can I buy a dual extruder?

Dale Reed · Post by **Dale Reed** » Thu Apr 10, 2014 1:53 am

Don't know a date, but saw a prototype at MG HQ today. Likey likey.

Dale

Dave K · Post by **Dave K** » Thu Apr 10, 2014 3:29 am

Dale, did you get a feel for the effective x-axis dimension with the dual extruders? I envy that you got to take a look at the prototype!

jimc · Post by **jimc** » Thu Apr 10, 2014 3:45 am

dave, rick posted a pic yesterday on the google group. not sure if you saw it. the hot ends do look very close together so i would imagine the X has not shrunk in size by too much. hard to tell though.

Dave K · Post by **Dave K** » Thu Apr 10, 2014 5:22 am

jimc wrote:dave, rick posted a pic yesterday on the google group. not sure if you saw it. the hot ends do look very close together so i would imagine the X has not shrunk in size by too much. hard to tell though.

Thanks, Jim, I just searched for it. I've seen dual extruders that looked like they were designed as two full-sized extruders ganged together side-by-side. MG's design looks pretty compact. Nice!

sprior · Post by **sprior** » Fri Apr 11, 2014 5:18 am

Can you post a link to the pic? I can't find it.

jimc · Post by **jimc** » Fri Apr 11, 2014 5:24 am

here you go

https://00571043170453673879.googlegrou ... 4xFsPoyhf4

Dale Reed · Post by **Dale Reed** » Fri Apr 11, 2014 9:41 pm

jimc wrote:dave, rick posted a pic yesterday on the google group. not sure if you saw it. the hot ends do look very close together so i would imagine the X has not shrunk in size by too much. hard to tell though.

All,

Those are both 50mm fans, so you can scale from there. There's a neat trick they did with the extruder motors, gears, and printed plastic parts, offsetting vertically, to get the extruders as close together as possible in the X (the motors are basically touching sides) while still keeping the nozzles at the same height. You'd have to see it --- I can't describe it. I do, however, want to buy it! And I don't even really have a need right now for dual extruders. But I'm thinking of something dual color, like H-P used to do with double-shot injection molding the legends on their calculator keys so they could never wear off. Same concept, different device.

Dale

Post by **rpollack** » Fri Apr 11, 2014 9:46 pm

I will get photos of the final version (or very close to the final version) posted in the next few days. in the photo that was posted in the google group - the vertical fan is 50mm and the lower, angled fan is 40mm (for reference). also, the v4 is all metal.

Post by **rpollack** » Mon Apr 14, 2014 7:38 pm

Here are some additional photos of the dual v4.

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