Difference between revisions of "Mesoscale manufacturing technologies"
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| − | == | + | == Established and widely accessible == |
| − | '''Galvanic electroforming:''' <br> | + | Resin 3D printing. Allows for rather small high detail parts compared to <br> |
| + | FFF/FDM molten plastic extrusion printing. <br> | ||
| + | Either used directly or for mold making. | ||
| + | |||
| + | == Experimental - How to make very many small precise decently hard metal parts for extremely cheap? == | ||
| + | |||
| + | '''Galvanic electroforming/electrotyping:''' <br> | ||
First crude experiment. FDM printed plastic was not tight enough. <br> | First crude experiment. FDM printed plastic was not tight enough. <br> | ||
https://x.com/AlaskaLawlor/status/1535681835102965760 (by Orion Lawlor)<br> | https://x.com/AlaskaLawlor/status/1535681835102965760 (by Orion Lawlor)<br> | ||
| Line 9: | Line 15: | ||
https://x.com/AlaskaLawlor/status/1534375298036142080 <br> | https://x.com/AlaskaLawlor/status/1534375298036142080 <br> | ||
| − | + | The risk of too fast growth is worst case dendridic growth with porosity <br> | |
| + | or still bad large single crystals brittle as the grain boundaries. <br> | ||
| + | Thus relevance of the following: <br> | ||
| + | Dense galvanic deposition of significant layer thicknesses (by Shaun Mulligan): <br> | ||
https://x.com/ProjectQuine/status/1554060533195833345 <br> | https://x.com/ProjectQuine/status/1554060533195833345 <br> | ||
https://x.com/ProjectQuine <br> | https://x.com/ProjectQuine <br> | ||
| + | |||
| + | Could this work or would? <br> | ||
| + | UV resin for small scale positive => <br> | ||
| + | metakaolin for heat tolerant geo-polymer negative => <br> | ||
| + | aluminum (or brass) powder for positive (in case of aluminum N2 or Ar atmosphere while melting the powder) <br> | ||
| + | Potential issues: Geopolymer mold deforming at temperature, aurface wetting and tension issues like <br> | ||
| + | aluminum fusing with silicatic geopolymer moldor (less likely) aluminum not filling the edger <br> | ||
| + | ''(Idea here: Unlike calcium based cement geopolymer can be water free and thus serve as mold for higher temperatures without cracking.)'' | ||
== Companies == | == Companies == | ||
| Line 25: | Line 42: | ||
Micro lasercutting machines (as used for the GIK (great invention kit) of MIT center of bits and atoms) <br> | Micro lasercutting machines (as used for the GIK (great invention kit) of MIT center of bits and atoms) <br> | ||
Mentined in the videos linked here: [[The three axes of the Center for Bits and Atoms]] | Mentined in the videos linked here: [[The three axes of the Center for Bits and Atoms]] | ||
| + | |||
| + | == External links == | ||
| + | |||
| + | * https://en.wikipedia.org/wiki/Electroforming | ||
| + | * https://en.wikipedia.org/wiki/Electrotyping | ||
| + | * https://en.wikipedia.org/wiki/Electroplating | ||
| + | ---- | ||
| + | * https://en.wikipedia.org/wiki/Stereolithography | ||
| + | * https://de.wikipedia.org/wiki/Geopolymer | ||
Latest revision as of 21:12, 28 September 2024
Contents
Established and widely accessible
Resin 3D printing. Allows for rather small high detail parts compared to
FFF/FDM molten plastic extrusion printing.
Either used directly or for mold making.
Experimental - How to make very many small precise decently hard metal parts for extremely cheap?
Galvanic electroforming/electrotyping:
First crude experiment. FDM printed plastic was not tight enough.
https://x.com/AlaskaLawlor/status/1535681835102965760 (by Orion Lawlor)
UV resin printed plastic instead might work.
CG model of a mold:
https://x.com/AlaskaLawlor/status/1534375298036142080
The risk of too fast growth is worst case dendridic growth with porosity
or still bad large single crystals brittle as the grain boundaries.
Thus relevance of the following:
Dense galvanic deposition of significant layer thicknesses (by Shaun Mulligan):
https://x.com/ProjectQuine/status/1554060533195833345
https://x.com/ProjectQuine
Could this work or would?
UV resin for small scale positive =>
metakaolin for heat tolerant geo-polymer negative =>
aluminum (or brass) powder for positive (in case of aluminum N2 or Ar atmosphere while melting the powder)
Potential issues: Geopolymer mold deforming at temperature, aurface wetting and tension issues like
aluminum fusing with silicatic geopolymer moldor (less likely) aluminum not filling the edger
(Idea here: Unlike calcium based cement geopolymer can be water free and thus serve as mold for higher temperatures without cracking.)
Companies
Microfabrica:
Some sort of galvanic electrofoming process for meso to microscale metal parts:
https://microfabrica.com/
https://twitter.com/microfabrica3D
Micromac – laser micromachining
https://3d-micromac.com/
Micro lasercutting machines (as used for the GIK (great invention kit) of MIT center of bits and atoms)
Mentined in the videos linked here: The three axes of the Center for Bits and Atoms
External links
- https://en.wikipedia.org/wiki/Electroforming
- https://en.wikipedia.org/wiki/Electrotyping
- https://en.wikipedia.org/wiki/Electroplating
