Dual Parking Extruders.. Anyone see this?

This looks pretty interesting..
https://blog.adafruit.com/2015/03/12...ay-3dprinting/

Could this work on our V Extrusion printers?

That is just dumb. Why take from both sides of the printable area when you could stack as many as would fit at one side in a row.

This idea tackles the possibility of oozing and /or scraping on the print from the other extruder.

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Originally Posted by Mjolinor

That is just dumb. Why take from both sides of the printable area when you could stack as many as would fit at one side in a row.

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This video show a better view of how the carriage works.. See here . ...Magnet Driven.

Wow I've never seen anything like that before. It's pretty interesting to watch for sure.

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Originally Posted by voodoo28

This idea tackles the possibility of oozing and /or scraping on the print from the other extruder.

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It does, how?

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Originally Posted by Mjolinor

It does, how?

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I think the thought is that, the second extruder is parked at the edge of the bed until needed, so it will still ooze, but it will do so away from the active print. Of course, when the head grabs the second extruder it may still have ooze on it, but I assume you could add a small wiper on either side of the bed to clean them off...

Thats exactly what it does, if you watch Part 2 Video you can see where the extruder parks on top of a metal shield keeping it from oozing until it is picked up again by the magnet.

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Originally Posted by MiniMadRyan

I think the thought is that, the second extruder is parked at the edge of the bed until needed, so it will still ooze, but it will do so away from the active print. Of course, when the head grabs the second extruder it may still have ooze on it, but I assume you could add a small wiper on either side of the bed to clean them off...

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You can see the shields in the screenshot

http://3dprintboard.com/attachment.p...tid=5343&stc=1

Quote:

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Originally Posted by MiniMadRyan

I think the thought is that, the second extruder is parked at the edge of the bed until needed, so it will still ooze, but it will do so away from the active print. Of course, when the head grabs the second extruder it may still have ooze on it, but I assume you could add a small wiper on either side of the bed to clean them off...

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As it would if they were both at the same side of the bed. The stupid bit is parking one at each end of the bed and needing two pickup mechanisms. That removes two times the extruder width from the printable area. If they were stacked at one end of the bed then the pick up does not need duplicating and you only lose one extruder width from the print area.

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Originally Posted by Mjolinor

As it would if they were both at the same side of the bed. The stupid bit is parking one at each end of the bed and needing two pickup mechanisms. That removes two times the extruder width from the printable area. If they were stacked at one end of the bed then the pick up does not need duplicating and you only lose one extruder width from the print area.

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or you extend your x carriage by the eidth of the extruder and lose nothing

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Originally Posted by sniffle

or you extend your x carriage by the eidth of the extruder and lose nothing

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I was thinking the same thing. It may not be ideal for our Prusa, but if someone was designing their own printer, including a little extra dead space between the bed and the frame would easily fix that issue.

I'm curious as to see the modified g code though.

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Originally Posted by voodoo28

You can see the shields in the screenshot

http://3dprintboard.com/attachment.p...tid=5343&stc=1

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Whoops, totally forgot about that! :)

It looks like he has it working on a prusa from maker farm..at least thats what the heat bed says..

Quote:

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Originally Posted by MiniMadRyan

I was thinking the same thing. It may not be ideal for our Prusa, but if someone was designing their own printer, including a little extra dead space between the bed and the frame would easily fix that issue.

I'm curious as to see the modified g code though.

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Good thread for separating the artists from the engineers. :)

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Originally Posted by Mjolinor

Good thread for separating the artists from the engineers. :)

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Or in my case, nut job :)

It would be a fair bit slower when printing though. Still not completely sold on dual (or tri, or quad) extrusion just yet though

This is the link to all the setup files including stls and slic3r config.
http://www.3d-proto.de/index.php?p=projects#ParkingLot