GimBALL - 3D printed DIY Gimbal with closed hull - PART1 (design) - Blogs

Hi guys,

let me introduce my latest project, a 3D printed gimbal for MobiusHD camera. I call it GimBALL regarding of it's shape...

My goal was to make a closed, aerodynamic shaped gimbal, which can be used in the front of a plane (ie. X-UAV Talon), up to 100 km/h airspeed. So I tried to make thisthing as aerodynamic as it can be. For drive I choosed three size of motors, according to the weight they have to rotate.

The smallest is for pitch axis, a HK 2206-140KV, RCTimer 2212 is on roll and RCTimer 2804 hollow shaft is on yaw axis. I'll use a basecam 8bit 3-axis controller placed inside my plane's fuselage.

For easy operation and FPV purposes, I made a small PCB from an USB plug which will be fixed inside the GimBALL. So Mobius have to be plugged in, that's all. There is a hole for easy SD-card removing and also there are holes for buttons and LED.

I checked the main parts with FEM analysis to be sure they are optimized for external loads (parts weight and wind force):

All parts will be printed using a Stratasys 3D-printer (using FDM technology). Total weight including MobiusHD and motors, screws will be around 280 g (+-15g).

Here are some renders about details:

Next step will be the parts producing and assembly (PART2) and final testing (PART3). So stay tuned!!!

Regards

Adrian

PS.: I'm not planning to produce this GimBALL but if anybody interrested in start producing, just write me an email (nhadrian@gmail.com), since I'm willing to sell 3D models - basically trade for smaller parts that are useful for my projects!!! But I don't have any time to produce parts and take support for customers, etc ... so please don't ask me how much will be a ready- to -use GimBALL...Thank you for your understanding!!!

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Comments

Alex Lee November 25, 2014 at 5:25am

I think the guys over at SurVoyer http://diydrones.com/profiles/blogs/laser-rangefinder-assisted-land... have the right idea about making a gimbal wind resistant. It's inline with the fuselage. In my opinion, and from what I've used so far with gimbals, is that wind is hard to overcome. This on a copter is a no brainer, but hanging on the front of a plane... I'd love to see some video first. Very good design and look by the way.
Evgeniy Spaels November 25, 2014 at 2:41am

I make a lot experimented with 3d Printed gimbal and these motors especially with RCTimer 2804 it is a bull shit, it is only good on pitch. Design of gimbal is good but my opinion it's overshooting.
Marius van Rijnsoever November 25, 2014 at 2:17am

Can you please take my money for the go pro version!!!!!!
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Vladimir "Lazy" Khudyakov November 25, 2014 at 12:01am

Perfect job!
Adrián Nagy Hinst November 24, 2014 at 9:08pm

As I wrote in the blog, the all-up weight incl. Mobius and motors will be around 280g.

I choose different motors to spare some weight and space, since the less weight you move the less motor power you need. So the smallest is on pitch and the strongest is on yaw.

I didn't choose hollow shaft because I couldn't find hollow shaft motors in this small size.

I'll share pictures about wiring in PART2
Mike T November 24, 2014 at 5:35pm

great idea. but looks heavy. whast the weight?
Azhar T. Pangesti November 24, 2014 at 3:38pm

This one is more promising in handling aerodynamic than the one in shapeways (link above). At least seemingly so.

Please please please do the Gopro version and take my money!! :D
benbojangles November 24, 2014 at 3:23pm

Is it possible to have internal wiring? Thanks.
benbojangles November 24, 2014 at 3:04pm

Just take my damn money!
Arnie November 24, 2014 at 2:49pm

Great design! Why are you using three different motors for each axis?

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