The worlds first 6 input, single nozzle, multi material hot end?
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@deckingman It's really interesting and impressive what you built! A field of science is combining different material, so it will be interesting to see what you can accomplish with it. Mixing hard with flexible material, or mixing normal pla with pva to create highly porous objects, or mixing with conductive filament or other special properties, it will result in interesting objects.
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@joergs5 There are probably too many combinations to try out in a single life time
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@deckingman said in The worlds first 6 input, single nozzle, multi material hot end?:
OpenScad seemed easier for me
This suggest that you could do well with a software programming career. Just saying.
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@zapta 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?:
OpenScad seemed easier for me
This suggest that you could do well with a software programming career. Just saying.
Maybe a few years ago, but at 68 years of age, I'm too old to think about another career. I can hack out simple bits of code in Python, and mess around with Arduinos and ESP modules with the aid of the internet and YouTube but that's the limit of my coding skills.
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Part 2 is out now if anyone is interested. https://youtu.be/XMrf4pIpMww
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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
