... some years ago I've mixed a paste for micro-brazing, that were usable for 3D-printing too, but it was pretty expensive, as mixed mainly from 30 microns big 80:20-gold:tin-microspheres, maybe 1 percent of gold-dust and as binder dexpanthenol and some droplets aqua dest.
For testing with a cheaper or better available material I'll start with common soldering paste - and then maybe mix it with some other (not melting) dust for higher thixotropy while melted and for higher structural stability ...
Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [
reprap.org] -- Deutsche Facebook-Gruppe - [
www.facebook.com]
Call for the project "garbage-free seas" - [
reprap.org]