That Folks is NOT Full Color 3DP. Multi Extrusion, yes. Not Full Color.

That Folks is NOT Full Color 3DP. Multi Extrusion, yes. Not Full Color.
http://techcrunch.com/2014/02/05/an-exclusive-look-at-the-botobjects-prodesk3d-color-3d-printer/?ncid=twittersocialshare

The Fox news video is pure gold…

They claim to have a mixing chamber.

My kids mix watercolor too - that isn’t the same as FullColor, believe me ^^

Good RGB or CMYK mixing is by definition full color. What it isn’t is arbitrary color on every part.

(I would argue btw that it is not multiple extrusion — it’s one extruder with multiple filament inputs)

@Jasper_Janssen no full colour is a solid colour. Not banding. RGB isn’t full colour its an optical illusion till you look close. Sorry but youve failed to see that full colour isn’t dots merging together.

Looks like they are using RepRap Pro extruders (cold-end parts), a J-head and a RepRap Pro color mixer hot ends.

If they get the mixing right, it could be full color? At least now its not vaporware…right?

@Ashley_Webster so this printer is not full colour by both methods. So its not full colour.

@Nigel_Dickinson one solid color is exactly what these guys produce, though, AFAIK — there is just one extruder head that gets a mix of the various colors. What you can’t do is put an arbitrary color next to another arbitrary color.

@Jasper_Janssen you really dont see what I see. Extruders 6 off.
So what are you saying one hot end…seems to me you dont understand the tech here.
Or you are trying to prove me wrong.
Each layer colour is decided by the slicer and that layer is mixed. Next layer is mix.
Not enough mixture to do 2 layers hence banding and not true colour as there is no consistency to this.
Why not a hopper and add ink into the hot end and you get the right amount of colour and one extruder.
Its a joke machine thats way behind the promise the makers gave.

@Nigel_Dickinson I don’t think you quite understand the tech here (really, could you get any more condescending? Especially while being wrong?). There are six cold ends, but only one hot end (with the mixer in between) and thus only one extruder.

Yes, colors are per longer period and not per smaller thing (which is what I’ve been saying), but they’re not limited to the colors in the cartridges, they can be any mix of them.

Ie, full colour.

Look the filement feed there are 6 they force the filiment they are extruders. That is where you set your e- steps. Short for extruder. Seems your a little confused on terminology. Cold end or extruder are the same…look at the photo 6 gear driven what…
Thanks for you attempt at confusing the hell out of yourself.
But I hope you now have learnt something and you able to use this in future.

@Nigel_Dickinson you’re still confused about terminology (and you haven’t stopped being condescending, either).

An extruder is the whole thing, both the hot and the cold end — that’s why those terms even exist. A filament drive aka cold end doesn’t extrude anything, the hot end does the actual extruding.

Maybe you’re confused about the meaning of to extrude?

I hope you’ve learned something!

Not its not as the filement drive forces the molten plastic. Or you’d get very little plastic out.
So what’s forcing the plastic.
Gravity?
Do you have a printer as if you did you would know that gravity doesn’t measure extrusion rate or retraction.

Try extruding plastic without a hot end some time. It’s even harder than extruding with only a hot end, which will extrude plastic when fed filament. Neither the filament drive nor the hot end by itself qualifies as “extruder”, that refers to the whole thing. And in this case, it’s a combined unit with six filament drives going into one mixer and hot end, so one extruder.

Lol you are dumb. The hot end is actual a die. So you think your right after correcting yourself and dig yourself a deeper hole.
And yes I can extrude plastic without a hot end. But its the most practical way.
The hot end is just an that. It doesn’t extruded. It heats,force is required.
If you believe its an extruder why in gods name is it called a hot and and the apperatus that feeds it is called an extruder by everyone but you. You must really hate being wrong to make up this BS.

One part of the hot end is a die. That’s just the nozzle/tip. And no, you really cannot extrude PLA or ABS plastic for 3D printing without one. It’s not just “hard”.

Why is it that you think everybody calls a filament drive an extruder? And why so you keep responding as if I think the hot end is an extruder? Because that’s just not true. In 3D printing, there is normally a one to one correspondence between hot ends and filament drives, which together form an extruder. And yes, there is a lot of imprecise terminology around that calls just the filament drive an extruder. It is, however, wrong. Go look up “extruder” on google image search and Wikipedia. An extruder is a device that uses pressure and heat to push a material (plastic or metal) through a die to form a product. In other words, it’s the whole thing, right from the filament drive to the nozzle, just like I’ve been saying all along.

This will be my last word on the subject, unless you come up with something new rather than argument by assertion and ad hominems.

@Jasper_Janssen well let’s see a steel extruding machine has no heat and forces the bar through a die. So is now a…metal forcing machine. So e steps should be f steps.
Still it proves you were wrong as its not cold end or hot end as its all the extruder. So your first attempt at a put down was wrong.
Thanks for actual debunking your whole argument.
I’ll leave you with this a man who is concise is accurate. A man who is in concise trips over his words.

Thread closed