Prassa, yes. Inj. Molding fully melts and fills the mold under pressure...so fully dense. With FDM, you'll have some "pores" if you will. Don't know exactly what the density is.
The future of 3D Printing will include systems that are much easier to use, this includes support removal issues and are much faster. Price will continue to decline. All this at the low end. There is another growing segment for end use part printing, here materials, part cost, repeatability, speed repeatability are key.
resourcer, open source communities are the big variable. The masses may come up with some exciting advancements. But to date, it has been tweaks on already existing technologies/platforms. Hopefully, something(s) amazing spring up from the rising interest in 3D pritning.
Todd, I've heard you talk before about how, counterintuitively, technology users expect more ease of use with lower-priced machines. I think that fact supports what you say about simple operation in the future.
resourcer, expected for the future is a fun one to tackle. Lots of bold cliams (home-based mfg revolution), but only time will tell if it happens near term. For the 3D printing segemnet, I do expect more systems with simple/transparent operation, some new technologies to arise and more materials. All while prices decline.
Prassa The build time would be around 1 hour to complete the 2" cube. If you would like I can send you a completed build per your request allowing you to measure the part.
Grade schools are teaching simplified CAD design, maybe adding simple shapes together to create a unique part or following a scriped design process to build a simple part. The idea is to quickly show the student a final part.
What's making the market accessible are the many sub-$1000 and sub-$500 3D printers. Just like ink-jet printers, quality of sub-$500 3D printers will get better in a matter of months until manufacturers are giving them away and charging for the media.
hwang, what gets me most excited is that it is used as a tool to get students excited about science/technology. Fold it into a curriculum where a 3D output makes sense, and watch the fascination on their faces.
gc3d, unless you see them run side by side, it is hard to put into words. Both have the same core process. Where it gets different is with a heated chamber (better part quality) and the precision of the build.
svarughe, depends on the application. Supported surfaces don't need sanded to remove supports (they dissolve away). For sid walls and top surfaces, sanding may be needed to have the smoothness required.
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