Josef talks about Multiextrusion and more

Prusa i3 printer discussion...the official one from Josef Prusa
User avatar
LePaul
Posts: 2082
Joined: February 7th, 2016, 10:26 pm
Location: Bangor, Maine USA
3D Printer(s): Ultimaker Original HBK, Ultimaker 2+
Contact:

Josef talks about Multiextrusion and more

Postby LePaul » October 4th, 2016, 4:11 pm


User avatar
ivan.akapulko
Posts: 342
Joined: February 11th, 2016, 11:27 am
Location: Us-Kamenogorsk, Kazakhstan
3D Printer(s): Ultimaker 2
Contact:

Re: Josef talks about Multiextrusion and more

Postby ivan.akapulko » October 8th, 2016, 7:30 am

I recently saw a thread on Twitter between Dzingof and RichRap3D about this decision for multiextrusion. It was about the fact that Autodesk has a patent on the almost identical solution with a single nozzle and 8 feeders. It is possible that in the end it will not move beyond experimental solutions.

User avatar
LePaul
Posts: 2082
Joined: February 7th, 2016, 10:26 pm
Location: Bangor, Maine USA
3D Printer(s): Ultimaker Original HBK, Ultimaker 2+
Contact:

Re: Josef talks about Multiextrusion and more

Postby LePaul » October 8th, 2016, 12:48 pm

Has the patent expired?

User avatar
ivan.akapulko
Posts: 342
Joined: February 11th, 2016, 11:27 am
Location: Us-Kamenogorsk, Kazakhstan
3D Printer(s): Ultimaker 2
Contact:

Re: Josef talks about Multiextrusion and more

Postby ivan.akapulko » October 8th, 2016, 3:27 pm

If i understand correct, nope, not yet.

User avatar
darkdvd
Posts: 38
Joined: February 27th, 2016, 6:01 am
3D Printer(s): UM2/UM2+

Re: Josef talks about Multiextrusion and more

Postby darkdvd » October 10th, 2016, 5:57 am

Last edited by darkdvd on October 10th, 2016, 3:41 pm, edited 1 time in total.
"Qui ne connaît pas l'histoire ne connaît rien"
Edward johnston, 1990

Anders Olsson
Posts: 369
Joined: February 8th, 2016, 8:37 pm
Location: Uppsala, Sweden
3D Printer(s): UM2 UM2E, UM2Go, UM3, Delta Tower, Form 1+, Form 2
Contact:

Re: Josef talks about Multiextrusion and more

Postby Anders Olsson » October 10th, 2016, 6:25 am

It appears that the Autodesk patent is describing something quite different than the Multiextrusion for Prusa.
One is about mixing colors in the hotend and the other one about changing filament to get either one color or another.

I would be slightly worried if I was the selling the Diamond Hotend though:


I hope this does not get into the same "patent troll" situation as the Stratasys patent on separating the motors from a temperature controlled build chamber. As I understood that situation, Stratasys does not really have a patent on the heated chamber itself, but all the other consumer 3D-printer manufacturers are much smaller than Stratasys and are so scared of upsetting Stratasys that they don't dare to build anything with a heated print chamber.
And Stratasys are just sitting there, not providing anything reasonably priced with a heated chamber, effectively holding back the whole 3D printing industry until the patent finally expires.. :(

User avatar
ivan.akapulko
Posts: 342
Joined: February 11th, 2016, 11:27 am
Location: Us-Kamenogorsk, Kazakhstan
3D Printer(s): Ultimaker 2
Contact:

Re: Josef talks about Multiextrusion and more

Postby ivan.akapulko » October 10th, 2016, 8:36 am

Anders Olsson wrote:It appears that the Autodesk patent is describing something quite different than the Multiextrusion for Prusa.
One is about mixing colors in the hotend and the other one about changing filament to get either one color or another.

I would be slightly worried if I was the selling the Diamond Hotend though:


I hope this does not get into the same "patent troll" situation as the Stratasys patent on separating the motors from a temperature controlled build chamber. As I understood that situation, Stratasys does not really have a patent on the heated chamber itself, but all the other consumer 3D-printer manufacturers are much smaller than Stratasys and are so scared of upsetting Stratasys that they don't dare to build anything with a heated print chamber.
And Stratasys are just sitting there, not providing anything reasonably priced with a heated chamber, effectively holding back the whole 3D printing industry until the patent finally expires.. :(

Exactly. And if we remember financial performance of Stratasys (and they are far from the word "good"), then the probability of a lawsuit approaches 100%.

User avatar
LePaul
Posts: 2082
Joined: February 7th, 2016, 10:26 pm
Location: Bangor, Maine USA
3D Printer(s): Ultimaker Original HBK, Ultimaker 2+
Contact:

Re: Josef talks about Multiextrusion and more

Postby LePaul » October 10th, 2016, 11:31 am

And it's the expired patents that launched the 3D printing revolution. This technology has been out there for a long time (80s!) but these guys patented it and sat on it for only their high end machines.

But...then again the FormLabs printers exist despite their troubles with patents.


Return to “Original Prusa i3 MK2 printer”

Who is online

Users browsing this forum: No registered users and 2 guests