Video: Parting Moon Shots from NASA's GRAIL mission

Parting Moon Shots from NASA's GRAIL mission
YouTube, 11 January 2013
http://www.youtube.com/watch?feature=player_embedded&v=PODCa9sA34A

Neat video of flight over the moon. This was the last minutes of video from Nasa's Grail Mission satellite from about 6 miles above the moon.

Asteroid Mining: Asterank

Asteroid Mining: Most Valuable and Profitable
Asterank, 19 December 2012
http://www.asterank.com/

We've collected, computed, or inferred important data such as asteroid mass and composition from multiple scientific sources. With this information, we estimate the costs and rewards of mining asteroids.

Golden Spike wants to start human lunar expeditions within a decade

Golden Spike wants to start human lunar expeditions within a decade
Ars Technica, 7 December 2012
http://arstechnica.com/science/2012/12/new-human-lunar-expedition-company-announced/

There were no vehicles announced, no disclosure of customers or investors, no mission plans or detailed slideshows. The prices quoted, while a bargain compared to what's currently being spent on space exploration, were still impossible for anyone except nations and the richest individuals to afford. The new company itself would not be credible if not for the list of companies and luminaries involved, which is lengthy.

Nasa Cancels Space Act Agreement with SpaceFlorida for Nanosat Centennial Challenge

It’s Dead, Jim
Citizens In Space, 28 November 2012
http://www.citizensinspace.org/2012/11/its-dead-jim/

Although there appears to be no formal statement publicly available from either NASA or Space Florida, there is much talk in the space community about NASA cancelling its Space Act Agreement with Space Florida for the Nanosat Challenge.

It is highly likely, therefore, that the Nanosat Centennial Challenge is terminated and will not be further pursued.

Neat Saturn V cutaway diagram

Saturn V Cutaway Drawing
De La Terre a La Lune, 18 November 2012
http://www.de-la-terre-a-la-lune.com/documents/images/saturnvcomplet.jpg

A neat cartoon cutaway of the Saturn V launch vehicle.

How Asteroids Can Save Mankind

How Asteroids Can Save Mankind
XMetallurgist, 12 November 2012
http://xmetallurgist.ca/keep-mining/

A nice infographic on space mining:

"Asteroid Mining may seem like science fiction, but with resources running short on Earth, mining the sky could be humanity's only hope."

Printing Rocket Parts

3D printing is beginning to bring changes to producing rocket parts. Several people and organizations have stated publicly that they are using 3D printing to make parts for rockets.

Paul Breed

In his business plan Paul Breed says that he's likely the first person to make a regeneratively cooled combustion chamber using 3D printing. Here are some pictures of his motor:

Trying the 3D print thing again....
Parts Came in...

Rocket Moonlighting

Rocket Moonlighting blog has shown several motors made using 3D printing:

Plastic Rockets
3D Printed Rockets: The Cost Curve
Chamber Designs

NASA

Here's a recent article on using 3D printing for rocket motor parts:

NASA's Space Launch System Using Futuristic Technology to Build the Next Generation of Rockets

NASA's Marshall Space Flight Center in Huntsville, Ala. is using a method called selective laser melting, or SLM, to create intricate metal parts for America's next heavy-lift rocket. Using this state-of-the-art technique will benefit the agency by saving millions in manufacturing costs.

Turbopump Parts

Parts for turbines and pumps are already being made using 3D printed technologies

EOS has manufactured turbine nozzle guide vanes as well as turbine impellers:

Aerospace Applications

Here's a picture of a turbine impeller:

Turbine Impeller

Getting Started

In order to get started, here's a basic process:

1. Become Familiar with the 3D printing technologies - There are various different technologies associated with producing plastic and metal parts. This Wikipedia article outlines some of the basic technologies: 3D Printing
2. Become familiar with 3D design technologies - In order to design a part, it must first be made as a digital 3D file. You can either contract with a design service to produce your part, or you can produce it yourself. There are CAD programs as well as 3D Design programs you can use. Some of the programs are:
   • CAD Programs - see this article for a list of CAD programs: List of computer-aided design editors
   • 3D Graphics Programs - see this article for a list of 3D Graphics Programs: List of 3D computer graphics software
3. Design your parts - Using either your own 3D skills or a design service, you can produce the digitial file needed to produce your parts.
4. Find a 3D Vendor - Although it is possible to acquire your own 3D printer for producing your parts, it is likely that you get the best short-term economy by using a 3D printing service. Here's a list of some 3D printing services. There are far more than this, so select wisely.

SUMMARY

3D printing is a technology with great promise for making rocket parts. As this Forbes Article states, it's a rapidly growing and large industry. There are many benefits that can be derived by considering using it for producing rocket parts. It can allow the production of small run parts at fairly reasonable prices.