MichaelOkay Hackaday community, I'm starting some first steps towards the proof of concept. I've ordered a bunch of syringes, a bunch of water-based gel (the kind used for ) and per the recommendation of @Jarrett, some Smooth-on 300 two part resin. The first test will be to hand-inject some mixed resin into the gel to see how the two interact and experiment with shape, movement, flow rate, etc.
I'm also going to pick up some plaster for testing as well, as I realized that if I can use plaster to print, it could be a great way to make low-temp metal casting molds.
While I wait for supplies to arrive, I'm doing research into a good 3D printer for this project. So far the best candidate seems to be the Prusa i3 or some variant, and I've mocked that up in the header image. I considered a few other models including delta printers, would love any thoughts you might have on the subject
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About your approch, i notised that to prevent cluttering of the drops you might consider a type of resin that shrinks on contact with the gel. Timing could be a issue too.
The drops must bond with each other on contact without being affected by the gel.
As for the choice of printer; try to build on yourself, go all the way! Its not rocket science, you only have to deal with 3 coördinates!
So why not moving the gel container in the proces and use a static needle??
The Gel looks like a stable medium for that.
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