Thread Tools
This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
May 27, 2013, 07:45 PM
Registered User
Jack Crossfire's Avatar
Thread OP


Brushless gimbal + defished gopro (14 min 58 sec)

It was pretty bad at normal speed.

Jerky motion (5 min 3 sec)

Testing with the narrowest field of view, the motor cogging was revealed, manely in the yaw axis, but probably in all 3 axes. No amount of power or PWM precision could overcome it. 8khz, 32khz, shifting the magnets away from the stator didn't matter. If you don't get a bog standard gimbal for $100, you'll end up paying more to find ideal motors.

The controller is about as good as it can get, without downward shooting capability. 10 bit PWM, 1024 step sin table added a tiny bit of precision.

At least the Gopro can put out some decent defished output.
Last edited by Jack Crossfire; May 27, 2013 at 07:56 PM.
Sign up now
to remove ads between posts

Quick Reply
Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question Decalogue and cog Triggerhappy Hand Launch 17 May 23, 2013 07:18 PM
Question Roger Newton 47" shovel nosed hydroplane boat. Good COG balance point ? cyclops2 Racing Boats - Electric 1 May 01, 2013 04:38 PM
Discussion Best way to find COG? SJW2511 Multirotor Drone Talk 5 Apr 19, 2013 12:21 PM
Help! New model Art tech yak 54 COG Headley Electric Plane Talk 2 Apr 17, 2013 07:19 PM
I have a motor with a brass cog on the end/How do i remove the cog and replace it? mortonj69 Power Systems 25 Mar 24, 2003 07:07 AM