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Forget the title of that last post: developing an AUV hull in 123D
I’m working on a prototype for the AUV hull. I plan to print a 10 cm diameter hollowish sphere and use it to develop a buoyancy system. It’s not easy to print a large sphere on a Makerbot. There are...
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Sure enough, ReplicatorG reads 123D-generated STL files at 1/10 scale
Update: 123D beta 5 uses the proper units for exporting STL files, so the scaling operation is no longer necessary. As I noted previously, objects in STL files created by Autodesk’s new 123D CAD...
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What I learnt making a 3D printable AUV hull (Part 1)
I did a bit of testing on my AUV hull design, and finally got a prototype ready to go. I’ve been working on the design for several months in Autodesk 123d, which is a pretty great program if you can...
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What I learnt making a 3D printable AUV hull (Part 2)
I printed four copies of the semidemihemisphere and refined it a bit as I went. Here’s the whole thing, including the hull that I covered in my last log entry. The only difference in the hull is I...
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Finished 3D-printed AUV hull
The hull is done for now. As I mentioned before, I have some improvements in mind (mainly to get rid of the outer bolts), but it took about 34 hours to print all eight pieces and I’m not eager to do...
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Underwater Solenoid Valve Remake
I tried a solenoid I scavenged from underwater valves on my 3D printed valve system and it didn’t work (duh). It was just too weak. The original valve spreads the force from the high-pressure side...
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Waterproofing 3D Prints (and also making them look super-cool) with Epoxy Clay
It’s pretty hard to get a watertight object out of our Makerbot Thing-O-Matic. The walls of printed objects are pretty solid, but unexpectedly porous; even a thick block printed with 100% infill will...
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