⏲️ Microwave Sintering is CONSUMING my Free Time
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- เผยแพร่เมื่อ 21 ต.ค. 2022
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quick update video on where I'm at with the new kiln and benchmarking for the 600w & 900w microwave. aluminum filament by the virtual foundry
also... my bad uploaded in yt standard instead of wide-screen. oh well.
For any newcomers to my channel (and to what microwave sintering is)
Here's a deep dive webinar I did with the virtual foundry
th-cam.com/video/5WIE6FRGlmc/w-d-xo.html
A famous and talented chef once told me that the humble microwave was best for cooking most veggies, It heats while still retaining moisture. Truly a workhorse of an appliance.
As an amateur chef myself, I can agree. One great chef once told me, _"we're chefs we learn with our mouths"_
This was a valuable lesson that can be applied to many other disciplines
I can't wait for you to dial your techniques. totally want to try this myself
Getting close :)
Also aluminum is tricky so other metals _should_ be easier (bronze, copper, steels etc...)
It'd be interesting to see a cost comparison between a microwave and kiln. In the future it would be great to have the processes programmed into the microwave controls
@@Rosettawang well to put it in perspective you'd spend anywhere from 1k - 5k usd for a programmable electric kiln and maintenance needs to be done about every year or two (replace elements, patch fire brick etc...). Also the power draw is high and sinter cycles run from 10 - 30 hours.
These two microwaves cost me $160 and a sinter cycle is about 2 - 3 hours. The microwaves are 600 watt and 900 watt
A kiln and filament is already magnitudes cheap than other techniques to 3d print metal. Sintering in a kiln might cost $20 to run. May be a few times cheeper in a microwave
@@Rosettawang got that right!
I feel like there’s a big opportunity for a folded sheet metal insert in microwaves to refocus the energy for various applications (sintering, plasma generation, wifi jamming, long range heating, etc.)… would have to use calibration measurements and simulation to maintain the resonance for each cavity… but I think it could work!
Certainly an interesting idea!
The silicone carbide powder, as a powder, is not very efficient in transferring heat. It has a lot of air inside. You could try heating it very slowly to archive a more uniform temperature, close to the sintering temperature, before increasing.
Something should "replace the air" within the powder. Maybe thinner powder, maybe other gases...
My latest process involves casting the powder into pucks which seems to achieve better results (and are a bit more durable)