I just wondered, I recently bought a set of new nozzles to my HS.
the design is somewhat different compared to the old ones, they have a wider angle close to the print area.
Has any one tried these, but I cant get them to work, no matter at what setting it seems. i have tried to recalibrate the print bed, tried alternate print heights (increments by a hundreds of a mill), i have fiddled with the extrusion, but it seems no matter what I do, at some point the nozzle eventually scoops up some of the extruded material and thus ruining the print.
It is not suppose to be this hard.....
Hey Jens B,
I see that you tried recalibrating the print bed, but sometimes - specially when nozzles get replaced - it's good to re-align the nozzle heights to make sure the nozzles are the same height. Here's a link on how to do that : How to Align your Creatr HS Extruders
From the digital photo that you attached, you may need to try that and see if that helps.
Well, the picture does not tell, but I have tried to run one nozzle at a time, but surely, it make sense to realign both extruders, so they do not mess up all ready printed material. I normally do this.
It seems I might now what is causing these problems with prints. The pinch wheel feeding the filament was totally worn out, really dull to the feel. Lpfrg are sending me some new ones, but I actually managed to source a couple which I believe are better made than the stainless ones that normally come with printer.
The ones I found are made from steel and casted, so they will probably be a good deal harder.
Testing now, will see how it turns out......
oh no, I hope they go back to the original design, this flat geometry is shit. I have similar cheap ones like this and I also never got them to work. the flat surface rips or smears the melted filament immediately, impossible to get any usable result. I was just going to order new ones, but if this is the design i won't. I am having stainless steel nozzles made from a company but it take a while. Once I have them I'll post it if someone wants some.
I am thinking of making the ultimate nozzle out of ceramic so you never need to change them again. ( but more expensive)
also i was doing some calculations about the precision of a nozzle, the must be VERY precise!!
0,5mm nozzle: a 0.01mm difference in diameter mean a 2% variation in extrusion is needed!
0.35mm nozzle: a 0.01mm difference in diameter mean a 3% variation in extrusion is needed!
Haven't had the chance to test them yet, but discovered our last batch of originals were all varying in diameter. So i welcome the change providing they are accurate.
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