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(Contents under pressure) -> http://objects.reprap.org/wiki/Paste_Extrusion
Re: Hello reprap world! and the ceramic slip printhead - 16 years ago
In case you haven't already found this, heres the link to a video about this machine: And, yes its a laser sintering machine. The Quality looks great- very detailed- a nice resolution. Maybe I'm going to go there and have a look myself... It would be interresting as well, which kind of slip they are using- i suppose its some kind of alumina-ceramic. I did a little more research and also found tby MasterLuke - Paste Extrusion Working Group
Re: Hello reprap world! and the ceramic slib printhead - 16 years ago
Thank you for the detailed answer Viktor! So you are using the spheres instead of ceramic/glasspowder to make the slip not wearing/clogging the nozzle. And the waterglass as electrolyte is for making it even more flowable? I also found your other thread from march about ceramic slurries. Now i see why you were adding the temperatures- your not going to sinter the pieces. Because thats somethingby MasterLuke - Paste Extrusion Working Group
Re: Hello reprap world! and the ceramic slib printhead - 16 years ago
I guess the peristaltic pump design could be a good choice. An other possibility would be to ground down the abrasive particles a little more in a ball mill like it is used for glazes- before mixing the ceramic powder with water. But maybe that also won't do the trick. ...the next problem seems to be that the extrusion nozzle will also wear out pretty quick. Maybe a nozzle made from SiC or similaby MasterLuke - Paste Extrusion Working Group
Re: Hello reprap world! and the ceramic slib printhead - 16 years ago
Hello unfold, did you do any further development regarding the printhead for ceramic slips? I'm curious how you are going to construct the reservoir and the feeder. I was taking a look at the paste extruver V0.1- but thats not really matching my ideas of a printhead. I think maybe its not very suitable for the use with a slip. btw: i saw the exploded extruder in your gallery- how did that happeby MasterLuke - Paste Extrusion Working Group