multiple filaments, multiple extruders, one head???

A place to talk about user-made mods and upgrades to their machines
Post Reply
User avatar
Tonkabot
Printmaster!
Posts: 233
Joined: Wed Mar 05, 2014 1:28 pm
Location: Minnesota

multiple filaments, multiple extruders, one head???

Post by Tonkabot »

Okay, I haven't ordered my printer, YET, but I am getting very close.

I do have a question that has me wondering....

Why can't you have multiple filaments, each with their own extruder, and have them all using the same hot end?
Seems like you could make a manifold-like guide that fed them all to the same head.
Obviously you have to retract past the merge point if you are switching filaments, but what would stop one from switching to a different filament at will?

User avatar
Eaglezsoar
ULTIMATE 3D JEDI
Posts: 7185
Joined: Sun Apr 01, 2012 5:26 pm

Re: multiple filaments, multiple extruders, one head???

Post by Eaglezsoar »

There are printers that do something very similar to what you want to do but they are very expensive.
Sounds like a good project for you to develop on the deltas from Seemecnc.

neurascenic
Printmaster!
Posts: 217
Joined: Fri Nov 15, 2013 10:05 pm
Location: Denver Colorado
Contact:

Re: multiple filaments, multiple extruders, one head???

Post by neurascenic »

I think that is how they are doing Color Blending. If you don't want to blend, I think you would have to figure out a way to purge the residual color between color switches.

Either that, or have the extruder plan ahead real well. even then, there will be a little bit of color mixing that if your particular... would have to be purged.
I am a fool entrapped within my own wisdom.

User avatar
Jimustanguitar
ULTIMATE 3D JEDI
Posts: 2631
Joined: Sun Mar 31, 2013 1:35 am
Location: Notre Dame area
Contact:

Re: multiple filaments, multiple extruders, one head???

Post by Jimustanguitar »


User avatar
Eaglezsoar
ULTIMATE 3D JEDI
Posts: 7185
Joined: Sun Apr 01, 2012 5:26 pm

Re: multiple filaments, multiple extruders, one head???

Post by Eaglezsoar »

The future of 3D printing? I don't think so. The software doesn't seem ready but this may be just a prototype and I bet it is quite costly.

bubbasnow
ULTIMATE 3D JEDI
Posts: 1064
Joined: Fri Aug 02, 2013 4:24 pm
Location: Dayton, WA

Re: multiple filaments, multiple extruders, one head???

Post by bubbasnow »


User avatar
Eaglezsoar
ULTIMATE 3D JEDI
Posts: 7185
Joined: Sun Apr 01, 2012 5:26 pm

Re: multiple filaments, multiple extruders, one head???

Post by Eaglezsoar »

bubbasnow wrote:or this

http://youtu.be/vmn7K1U06Wc


So that's what Sanjay is developing next. Damn, I'm going to run out of money trying to keep up with all the new technologies.

User avatar
Nylocke
ULTIMATE 3D JEDI
Posts: 1421
Joined: Sun Jun 23, 2013 1:43 pm
Location: Iowa

Re: multiple filaments, multiple extruders, one head???

Post by Nylocke »

The first printer makes me laugh, I'm pretty sure its a conglomeration of the Ultimaker 2 with a RepRapPro Tricolour Mendel. Seems to be using the Mendel's extruder and the Ultimaker's frame and basic design (boo ya Parallel kinematics!)

int2str
Printmaster!
Posts: 196
Joined: Tue Nov 19, 2013 8:38 pm

Re: multiple filaments, multiple extruders, one head???

Post by int2str »

I actually have parts on order to attempt something like this.
I've posted in another thread asking about a purge solution and I'm trying different things right now.

Without the purge solution, I'll still try to see what I can come up with and will post a video if I succeed.

I think given the size of our effectors and also the headache of levelling multiple nozzles and not knocking down parts mid print, this would be a better solution.

User avatar
lordbinky
Printmaster!
Posts: 755
Joined: Sat May 18, 2013 3:53 am
Location: Tri Cities Washington

Re: multiple filaments, multiple extruders, one head???

Post by lordbinky »

If the transition is quick and predictable between color changes then the change over could also be handled with software.

Jas
Plasticator
Posts: 7
Joined: Tue Mar 18, 2014 9:50 pm

Re: multiple filaments, multiple extruders, one head???

Post by Jas »

Have a look at what RichRap did, not perfect for a delta but a good place to start…
http://richrap.com/?p=121
I'm using this as a starting point for a bowden based 3 way feed for a delta,
Cheers
Jas

User avatar
Eaglezsoar
ULTIMATE 3D JEDI
Posts: 7185
Joined: Sun Apr 01, 2012 5:26 pm

Re: multiple filaments, multiple extruders, one head???

Post by Eaglezsoar »

That is one cool hotend being fed from 3 colors of filament. Very creative and darned impressive.

Post Reply

Return to “Mods and Upgrades”