Looking for cheap 3D printer for working prototypes? Metal or plastic.

[Wayne Morellini]

Still trying to get through those links I opened up last month.

3D printed beams 10 thousand times stronger tban steel (provably by weight).* Uses an old discovery that holes in structures provide reinforcement.* I could see that the force spreads around the surface of the whole trying to reform it.* My imagination spread to very holed structures, and then to parabolic structural shapes, this goes further. A bit of a fools paradise though as you get to a point it is purpose specific, but if something unusual happens, say on earthquake, or a nock, you can be in trouble.** Like to use it for my flying car design, which I think I was going to use something else of intricate structure (but in reality, you can get light areogel alternative for steel, how structurally durable for flex and exposure to temperature, sun light and elements I don't know.

I'll tell you what is scientifically 10, 000 times harder than armored steel, a pure lattice of glass.* Apparently it is the defects in the lattice that causes weakness.* Another similar thing my high school teacher told me, that Nylon I think, could be used by a satellite to lift materials on earth.* I might have been the one that objected to this, and we were informed that when the nylon was one perfect cord it was stronger zqwg and lighter than steel.*

http://gizmodo.com/5964609/custom-3d-printed-beams-can-be-10000-times-stronger-than-steel

Here are so informative videos of expensive industrial additive (3D printing and techniques, including some diagrams of the system used by NASA for rocket engines:

http://www.extremetech.com/extreme/...-the-final-frontier-of-additive-manufacturing

Please note, recent research has indicated structural weaknesses in various methods that may lead to structural failures, from gaps.* If you have beads/powder and don't melt it should be possible (I would use pressure/vibration to force the gaps out.

Building intricate materials:

http://gfxspeak.com/2013/01/14/taking-3d-printing-into-softer-realms/

Ces 2016 with printable electronics:

http://www.extremetech.com/extreme/...inter-wrap-up-new-models-new-tech-new-markets

Printable Wood:

https://www.wired.com/2012/11/3d-printer-wood-filament

Microsoft enters 3D printing market with 3D software:

https://3dprintingindustry.com/news/microsoft-confirm-3d-printing-rumors-windows-10-event-97467/

Manufscturer, Integrated 1000 colors in Adobe 3D color print engine:

http://3d-printing-review.com/stratasys-enables-more-than-1000-colors-via-photoshop-on-3d-printers/

An easiest to use for public use 3D printer (also see kids models):

http://3d-printing-review.com/new-3d-printer-made-in-london-is-the-easiest-for-public-to-operate/

Don't know the price, but commercial.* This manufacturer uses wire, claims any metal, mult metal, upto 10x faster than SLS and competing techniques, 90% reduction in costs.* Fully automated 24/7 printer.* Six square feet.* Looks cool.

http://3d-printing-review.com/nvbot...l-3d-printing-announces-dr-paul-burke-as-cro/

https://nvbots.com/nvlabs/

Then again, the following is probably cheaper (mentioned before I think) printing with rust and converting to iron. I l know a rust proofing method from decades ago.

http://3d-printing-review.com/3d-printing-metal-from-rust/

Now finishing for a smooth finish.* There could be coatings, but with a tiltable print head you can make a angle version of layers etc.* This would substantially smooth out objects.

At last a arm robot that does 3D printing and more:

http://3d-printing-review.com/this-...printing-to-laser-cutting-to-cake-decorating/