When I loaded this model SU said it had problems. Fixing problems made the hulls unsolid. So I chose not to fix. Like you the solids did not make a solid when combined. Solidsolver could not solve it. Starting back with the three separate components: Solid inspector found one tiny tiny hole in the hull at the inside gunnel. I fixed this and made it a component and placed the hull mirrored on the opposite side. Combining the solids again failed to make a solid. Solid inspector showed numerous errors in the resulting group. Too much to work out. I scaled the model up 1000 times before using outer shell. That worked and scaled down OK to be solid.

Prime Gray (yes it's SLA) and Form 1 prints should be very similar. Prime gray also has those little bumps from the support structures. In your case, I'd look up someone with good reviews on 3DHubs or MakeXYZ with a Formlabs printer and have them make some parts for you to see if they're good enough for what you need, and go from there. Might turn out to be your best option!

I was going to ask TIG about this, but he's already done it! Scale by volume plugin! http://sketchucation.com/forums/viewtopic.php?p=493763#p493763

You picked a good one, Ken! Here's a photo of a part, I think the one being made the video above: [image: 2Ff5t0x.jpg] There are more photos of the machine here: http://imgur.com/a/Knog5 Dukejazz, I have heard the value of the machine is over $1 million, and the raw titanium powder used in the machine is ~$500/kg.

@Ellipser You are right ,everything must be solid, but that is Rule no.0

Mcor has a very interesting printer. Here's one of my models made in paper on their machine. Feels almost like wood. They are expanding their presence like you mention, but as yet there are few services that offer Mcor printing to the public. [image: p7eo_IMAG0410.jpg]

Look good to me I see it now in the new wire today - dukejazz Autodesk unveils 3D printer as it aims to become industry's AndroidBy | BBC News Leo Kelion [image: _74854674_3d_prints-02.jpg] Autodesk 3D Printer To Demonstrate Open Source Platform 'Spark' Soon | CrazyEngineers "What happens when the Autodesk CEO isn't feeling so good about the present 3D printing scenario? Well, he build one of his own" Autodesk launches its own 3D printer and the Spark 3D printing platform | Digital Arts Online "Autodesk has announced an open software platform for 3D printing called Spark, which will be open and freely licensable to manufacturers and others" Autodesk is making a 3D printer to showcase its new software platform | Engadget "The 3D printing process frustrates Autodesk CEO Carl Bass, so his company is looking to ease headaches with its new software project. Spark is an ..." Autodesk steps into the hardware business: It's making a 3D printer | VentureBeat "What's next in mobile? Find out at MobileBeat, VentureBeat's 7th annual event on the future of mobile, on July 8-9 in San Francisco. Register now and ..." AutoDesk Announces Their Own 3D Printer and the 'Android' of 3D Printing | 3dprintboard.com "Pretty huge news coming out of AutoDesk today. They have just announced that they will be manufacturing 3D printers. They have also announced a ..." Autodesk debuts Spark open-source 3D printing initiative | Electronista "Autodesk -- best known for software such as AutoCAD and 3ds Max -- has announced a new open-source initiative for 3D printing, dubbed Spark." news alert "Autodesk's printer uses a laser to harden liquid plastic to create the objects" -BBC When some big event happen it lights up the neww wirers - dukejazz

DMLS is usually used to make parts for rockets and high end cars where the cost can be justified, but they wanted to show on a smaller set of intricate parts what the capabilities are. Guns have to be manufactured to high tolerances, and those parts came out of the printer ready to use - no hand finishing required! To me, that really shows the power of 3D printing. I'd love to see what you get printed.

Awesome idea!! I'm keen to get into lots of 3D printing this year!