But 3d printing is not food safe, so using this method for chocolate molds seems unwise.
Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
11–20 of 30 posts
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#12Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#13But 3d printing is not food safe, so using this method for chocolate molds seems unwise.
The video shows it being used to make fancy ice cubes.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#14But 3d printing is not food safe, so using this method for chocolate molds seems unwise.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#15But 3d printing is not food safe, so using this method for chocolate molds seems unwise.
The molds are not 3D printed. Rather, the molds for the mold are. The actual molds used in production are silicon, obtained after pouring silicon into the 3D mold-of-the-mold.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#16I'd be concerned about layer lines ending up in my final molds. If you look closely they'll end up in your final cast repeatedly. Perhaps this would be best accomplished with a resin type 3d printer to minimize the issue.
The paper authors used FDM machines (Ultimaker 2+, a Stratasys J750, and a Stratasys Fortus 450 MC). But even the cheapest $500-ish resin printers can do 25 micron layers with 50-ish micron XY resolution and it is very very hard to see those layer lines.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#17Earlier quoted context omitted.
The paper authors used FDM machines (Ultimaker 2+, a Stratasys J750, and a Stratasys Fortus 450 MC). But even the cheapest $500-ish resin printers can do 25 micron layers with 50-ish micron XY resolution and it is very very hard to see those layer lines.
FDM machines are almost invariably resin printers; ABS and PLA are the most common resins for them to print in, although others exist. In theory you could do FDM in non-resin materials such as, for example, metals, but I don't know of any examples.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#18Earlier quoted context omitted.
You've got several options here, none of them great. 1) Use a resin printer and print the meta-molds at very high resolution, then lightly sand with high-grit paper or use a gap filling primer paint. 2) Use ABS, HIPS, or another acetone smoothable plastic and vapor bathe the meta-molds (would probably slightly mess up the split lines though). 3) Use a paint-on epoxy to manually smooth out the meta-mold interiors. 4)…
5)Have one of the $40k clip printers that don't leave the lines.
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#19I'd be concerned about layer lines ending up in my final molds. If you look closely they'll end up in your final cast repeatedly. Perhaps this would be best accomplished with a resin type 3d printer to minimize the issue.
You've got several options here, none of them great. 1) Use a resin printer and print the meta-molds at very high resolution, then lightly sand with high-grit paper or use a gap filling primer paint. 2) Use ABS, HIPS, or another acetone smoothable plastic and vapor bathe the meta-molds (would probably slightly mess up the split lines though). 3) Use a paint-on epoxy to manually smooth out the meta-mold interiors. 4)…
Re: Metamolds: Creating ideal 3D printed silicone molds faster and cheaper
#20Earlier quoted context omitted.
You've got several options here, none of them great. 1) Use a resin printer and print the meta-molds at very high resolution, then lightly sand with high-grit paper or use a gap filling primer paint. 2) Use ABS, HIPS, or another acetone smoothable plastic and vapor bathe the meta-molds (would probably slightly mess up the split lines though). 3) Use a paint-on epoxy to manually smooth out the meta-mold interiors. 4)…
Re.: 1) The latest generation of 'cheap' DLP printers can do 25 micron (e.g. the Phrozen Shuffle). After curing, dipping in resin again or priming and then coating with 2-3 layers with an airbrush results in a perfect surface finish. No sanding required.
Hey where did the 0.4 micron go?