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Topic: Hacking a camera gimbal (Read 800 times) previous topic - next topic

blar1234

Hi everyone,

for a project I need a camera platform that can rotate in all 3 axis. Instead of building this module myself, I noticed that brushless aerial camera gimbals have everything I would need already in a nice and reasonably priced package.

Those gimbals are generally used to stabilise motion, so there are quite a lot of sensors on board. I just to be able to rotate each motor individually via Arduino. Has anyone ever done this? What would I have to look for when choosing a readymade gimbal? Would you recommend anything else?

DVDdoug

It appears to be serially controlled and the do publish some code, but it's not clear to me what that code runs on.   I dunno...  You might have to "port" it to the Arduino and figure-out the serial connections.

It might be better to look for a pan & tilt mechanism from a robotics site.  These usually use regular servo motors that can be controlled with the servo library.

blar1234

This is pretty cool, thank you for your input. It's a shame though that all of these seem to be pan and tilt axis only; except one which is over 1000 USD. I will be thinking about adding my own roll axis, but I also don't love that idea…

CrossRoads

Have you looked at servocity.com?
Looks like SPT-200 with DDT500 might do all 3 axis if I follow the end of this video correctly.
https://www.youtube.com/watch?v=kdusJQmh3gU
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

CrossRoads

Are you also looking to turn the camera 90 degrees for horizontal/vertical orientation shots?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

blar1234

Hey CrossRoads,

I did look at Servocity, yes. The quantity of your answers is impressive, but unfortunately did not help a lot ;) The first link shows two systems which cover one axis each (2 total; pan&tilt again). The second one looks like a robust system which I looked closely at, but is also only a pan&tilt. I also need the roll axis covered, which would be a third degree of freedom.

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

CrossRoads

#8
Nov 07, 2016, 09:57 pm Last Edit: Nov 07, 2016, 09:57 pm by CrossRoads
Maybe find a different bracket so that one of $50 or $100 pan/tilts can be used with it.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

blar1234

So that would be around 350 USD, but is also not really a clean solution, because the parts are not intended to go together. Hacking an existing system IS appealing in the face of that. Also, it surprises me that nobody came up with an open 3-axis system yet…

CrossRoads

Well, isn't making the smaller pan/tilt fit on the roll also kind of hacking an existing system?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

blar1234

Don't get me wrong - I don't want to hack an existing system just for the sake of it. I'd much rather have working solution that is affordable. And if I have to pay a premium (300+ USD), I want it to be easy to use!

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