An Open Source 3d Printed Robotic Underwater Explorer

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piercet
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An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Thu Sep 04, 2014 12:11 am

I haven't actually printed this as such yet, but it's in the works, and the design files are mostly done. Parts are on the way, etc. This is my entry into the Reddit r/3dprinting "best 3d printed machine" contest (http://www.reddit.com/r/3Dprinting/comm ... g_contest/) which by the way needs more entrants. But at any rate, It's going to be printed on my TAZ, and I'll post the "in progress" stuff here. Now that my AO-10x upgrades are just about done, I need a new project heh.

http://www.thingiverse.com/thing:451236
TimRov1.png
At any rate, Enjoy!

jebcom
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by jebcom » Thu Sep 04, 2014 10:52 am

Very nice! Can't wait to see it together and operating.

Wizard
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by Wizard » Thu Sep 04, 2014 8:49 pm

Cool!
Will this be autonomous or controlled via a tether?

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piercet
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Fri Sep 05, 2014 12:02 am

The plan at the moment for the one I am building will be controlled via a tether. Someone with more robotics experiance than myself could probably make an autonomous one.

Wizard
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by Wizard » Fri Sep 05, 2014 11:35 am

Add a vacuum hose and you could use it to clean swimming pools.
Add a couple cameras and lights and someone on the surface could "swim" with their scuba-diving buddies.
Add a grappling arm/hand and you could search for treasure. Gold dubloons to starboard Captain!!!

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piercet
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Fri Sep 05, 2014 12:08 pm

Lights and camera will be located inside the 8" acrylic tube, with mounts for auxiliary lights on the top as needed. The robot gripper arm thingy will mount on that little grey mounty spot on the side of the frame unless I move it underneith. I hadn't thought of any kind of vaccume hose mount, but I could certanly add one!

I may have to shrink the whole thing slightly. The peices are small enough to just bairly fit on the Taz bed, but not allow for a runout line around or any brim. Still is pretty big though heh.

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piercet
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Mon Oct 13, 2014 7:16 pm

Here's a couple of progress pictures. I've started construction of the ROV float, and several of the major pieces are printed and test fit. The skids are off in these pictures several inches, just ignore that for now though heh. Next prints will be the two large side panels. The top structure is getting a bit of a redesign to accommodate the float base and the secondary pressure hull easier (the secondary pressure hull is an old underwater camera housing repurposed. Eventually that will house the robot arm control module, a rear camera, and half the batteries.

The thrusters themselves will start arriving over the next few months. Electronics will probably end up being a spam Robot arm controller coupled with a regular OpenROV control board. The robot arm itself is also on it's way.

The float is going to consist of those two plywood platforms, with a secondary layer joining them together, then covered with closed cell structural composite aircraft foam (dyvinicel? sp) and glassed over. I'll have plenty of room for ballast weights in the bottom if I need it. The top plate will end up being one center thruster mount, and then one rear pod mount suspended under the float between the rails. There will also be two lower cross spars to help support that rear pod.

The endcaps have not been milled yet, but everything looks like it will work out from the printed prototype (which is at the CNC shop) I'm shooting for an initial depth raiting of 300 feet give or take.

All the parts so far are printed at 100% infil, ABS.Eventually the entire thing will likely get painted to protect the aluminum from corrosion. The whole thing is going to weigh about 30 pounds when done, with at least half of that being battery weight. It's getting there!
IMG_1510.JPG
IMG_1511.JPG

bam
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by bam » Thu Oct 16, 2014 7:48 pm

piercet wrote:Here's a couple of progress pictures... It's getting there!
This is super cool. Thanks for developing this, I'm eager to try your design out myself :).

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piercet
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Thu Oct 16, 2014 11:52 pm

You're welcome! As you get closer to building your own, let me know if you want mounts for any specialized equipment, or the design files themselves!

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piercet
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Re: An Open Source 3d Printed Robotic Underwater Explorer

Post by piercet » Sat Oct 25, 2014 3:08 pm

One of the rear side panels completed. That's the first print with the .5mm nozzle on the Taz. I still have some tuning to go with my .5mm settings, but it turned out ok. Ii plan to eventually paint the whole thing anyways, so i'll be able to fix the minor surface imperfections at that point.

Next up, the other side panel and then the mount for the rear pressure hull so I can actually attach it to something. Then I'll print the redesigned top thruster plate and finish the float.

The endcaps for the main pressure tube are currently being manufactured. I should also see the first set of thrusters in February.
IMG_1800.JPG

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