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Discussion in 'Off Topic' started by Ben Lindstrom, Apr 2, 2015.
You are correct...that is the best use of multiple extrusion...multiple materials.
I had a Sinclair ZX-81 in the early 180s, and an Amiga A1000 in the late 1980s. I doubt the Sinclair could have done much with a 3D printer, 7 minutes to save a program with the cassette interface. But the Amiga had a nice GUI, and could have worked with a 3d. Computer doesn't work though, need parts.
I'm not familiar with the Spectrum, can you provide a link?
Why stop at three, when you can have five:
Looks basically like three extruders put together. I can see 3 finned cooling towers so there are probably 3 nozzles.
Why not just use one nozzle with 3 orifices which would extrude the 'plastic state' filament together in one 'stream'.
The orififes would be projecting the filament at, say, 45 degrees towards each other. This would blend any color using the true 3 basic colors. I have no idea how you would work the coding. Probably a whole new stream of G's. LOL Frank
Can you imagine cleaning out a clog???? Frank
I wonder what happens when he turnes on all the switches at once.
Hey, you only need the 3 basic colors to make any color!!!
Robo is working with Spectrum on a printer that inserts dye using a single extruder to produce hundreds of colors.
Hey the ball is rolling! Frank
Maybe they only need white filament with a liquid dye. The liquid vaporizes and the pigment tints the filament. 2D Jet copiers have been blending pigment like this for quite a while.
Actually that is not how printing color works, you only need three colors with light (RGB), but in printing you need a minimum of four (CYMK). Not even sure it would work the same way with a setup like this, the filaments would have to be in a homogeneous solution to mix the colors properly.
I guess you missed the video above where they are doing it! Frank