Ceramic hotend...?
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@warbunnies said in Ceramic hotend...?:
...........................I've been trying to find a good source of ceramic heaters myself and hopefully they will catch on. The fast heating/ cooling time is great for tool changing.
Let me know if do find a source. I've been looking myself with not much luck.
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I will let the world know! Good lord I want them to catch on. I'm probably gonna try making my own at some point. It is just nichrome & a non conductive, high heat material after all...
Alibaba seems to be the only place which kinda sucks cause i cannot buy bulk at the volume they want to make me custom parts.
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@warbunnies said in Ceramic hotend...?:
@deckingman
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Alibaba seems to be the only place which kinda sucks cause i cannot buy bulk at the volume they want to make me custom parts.Yup. Been down that road too.
My only slight concern is that if one fails, it'll be a bit of a pain to replace compared to a "normal" drop in cartridge. For what I have in mind, disassembly for the purpose of replacing an annular heater could be problematic, unless I change the design - the jury is still out on that.......
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Okay ya that is a fair point. they are more delicate, proper wire constraint is a MUST. It could be offset by a good supplier. The heater itself isn't that expensive to make. Along with a good design of the metal parts. The nozzles need to be easier to remove & the temp sensor should be close to but not in the nozzle. Combine a decent design with that heater & you got a winning hotend.
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@warbunnies said in Ceramic hotend...?:
Though I wouldnt suggest using their mini hotend. Originally they said they would be coming up with different nozzle sizes & 3 years later, nothing. emailed them last year and they pretended not to know anything about it & had no plans to do it. But it was a very very good hotend for the period of time i used it. The heater is so strong that it seems to react much faster to changes than the normal heating method.
Are your talking about M3D micro-extruder? I'm very tempted to buy one with the Pro nozzle...
https://store.printm3d.com/collections/parts/products/micro-extruder-core-assembly
https://store.printm3d.com/collections/parts/products/pro-4mm-nozzle-assembly -
Nope I'm talking about these: https://www.deltaprintr.com/product/mini-hotend/
they even have a damn picture labled "micro nozzles coming soon" bunch of lies.
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Ok, I see.
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How are these micro-hotends build, inside? Are they using PTFE? Are they made of 1 block from top to nozzle?
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they are a full metal. the ptfe stops up in the cold end. the nozzle & heatblock are separate. the ceramic heater encloses a metal core that threads into the heatbreak & the nozzle threads into the metal core.
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Thanks for your answer.
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Web skills MAY have nothing to do with product quality... but... very "high bling" web site... who's security certificate expired four days ago...
Sigh.