The worlds first 6 input, single nozzle, multi material hot end?
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@deckingman looking forward to the next video for sure!
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@t3p3tony said in The worlds first 6 input, single nozzle, multi material hot end?:
@deckingman looking forward to the next video for sure!
Part 3 is now public. I've been exploring PET-G melts rates and got some pretty crazy results.
Edit - Oops, forgot the link - here it is https://youtu.be/4YIhfj7BHk0
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@deckingman nice!
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Interesting
What's the layer adhesion like at those dimensions? -
@owend said in The worlds first 6 input, single nozzle, multi material hot end?:
Interesting
What's the layer adhesion like at those dimensions?Layer adhesion is awesome - that "bucket" is so strong!!
IIRC, E3D found similar strength advantages when they tested large nozzles on their volcano/supervolcano. One contributory factor might be that with a bead that big, it doesn't cool fully before the next layer gets laid on top. If I printed anything much smaller, I would likely have to slow the print down or use a massive amount of part cooling air, otherwise it might slump into a horrible blob.
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@deckingman said in The worlds first 6 input, single nozzle, multi material hot end?:
Layer adhesion is awesome - that "bucket" is so strong!!
is it water tight?
Doug
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@dougal1957 said in The worlds first 6 input, single nozzle, multi material hot end?:
@deckingman said in The worlds first 6 input, single nozzle, multi material hot end?:
Layer adhesion is awesome - that "bucket" is so strong!!
is it water tight?
Doug
Hi Doug. To be honest, I doubt that this one would be water tight. The reason being that when you do 45 degree infill into a curved perimeter, with a layer width of 1.65 mm, the slicer didn't do a very good job with those last bits of infill which need to be less than 1.65mm wide. i.e where the straight line infill is a chord of a circle segment and the distance from that chord to the circumference is less than a layer width.
To ensure that it's water tight, I'd need to tweak the slicer settings (e.g. infill/perimeter overlap, or use a different infill pattern), or tweak the design of the part so that the infill to perimeter junction is better. I don't think there would be that problem if the base was rectangular with rectilinear infill. Otherwise, if the part had to be water tight, then maybe a smaller nozzle (say 1.0mm instead of 1.5mm) might be a better choice. And/or use two bottom layers instead of just one.
In a nutshell, I'd say that layer to layer would be water tight, but layer to perimeter might need to be given some consideration.
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@deckingman Fair point shame really as that would certainly show how good the inter layer adhesion was.
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Following on from my last video, I've just published another showing a functional waste paper bin being printed under 2 hours https://youtu.be/7tE-jNIZ7n0
That was still using up this 6 year old PET-G filament which has absorbed a fair amount of moisture, but it serves to show that 3D prints can grow faster than mushrooms
.The average volumetric flow rate was around 44 mm^3/sec. The next video will show the same thing printed in PLA - then you'll see really insane volumetric flow rates.
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For anyone who might be interested, I've just uploaded part 4, in which I show the results of heating the "combining block" to a significantly lower temperature than the nozzle with a range of about 28 different filaments, from lowly PLA/PET-G/ABS to things like Carbon Fibre Nylon, PC-ABS, Graphene PLA, Composite HTPLA, PVA, Polypropylene and TPU. https://youtu.be/2q0LqLOAvRk
