Last edited by Glenstr; 8th June 2012 at 01:08 PM.
yebbut, look at the prices for Hoverthings ($125, rigid)and FPVManuals FPV ($190, with cam isolation) frames. Of course, they are proven and the Spidex is an unknown entity around here.
You say shark I say hey man Jaws was never my scene And I don't like Star Wars
Just got my Flamewheel 450 frame in the mail today, think I'll be putting a Gator mount on it.
Here's my solution, soft suspension system, and keep the mass under-slung:
Last edited by Cletus; 9th June 2012 at 09:30 AM.
Oh Gravity, thou art a heartless bitch!
This is what I did for my HT-FPV. Small pieces of latex tubing set in slots in the wood. A drop of CA on the top of the tubing joins the two levels. The GoPro, case and all goes in the modified mount. Mount is held to the frame with servo tape. Elastic bands (not shown) are wrapped around mount and frame tab stiffen it up a bit.
No jello @ 1080, but quick movements tend to oscillate the mount a bit. It sits abit too high so I'm cutting down my GoPro case and I'll use velcro to hold it in place. I'm not sure I need this much vibration isolation...we'll see.
Think I'll be joining and following this thread then.. seemed that you guys did a better job than me. The fact that I've just started out in the hobby some months ago is not an excuse..
View this video on YouTube
However I've absorbed quite some info on this thread. Will go home and see what I can do to improve it
Well, I finally got a gopro and made a simple hard mount to see how much vibration was getting through... None! Well, almost none... The video looks smooth, jello free and in focus. In photo mode though whenever my tricopter was descending... if you look really close the edges of buildings aren't totally straight. But its close enough for me.
On the one hand I'm thrilled... but the engineer in me is disappointed that I don't get to test out any of my ideas on it! Sorry guys. Btw, I've been watching a lot of videos shot from Hoverthings quads and almost all of them appear to have jello... It could be the frame?
Intertia is key. I think the weight of the GoPro itself has a lot to do with eliminating vibrations. I recently FPV'd-up my tricopter and don't have any problems with vibration getting into the video.
There are 3 basic methods:
1.) eliminate the source. this is the most important.
Here are some things that I've done that I have found to be very important in eliminating vibrations:
A.) Use good props, like APC's that actually are able to be balanced properly. Some are pretty good out of the box, others need a little balancing. The cheap HK knockoffs are crap though, and its impossible to get them to balance properly. This eliminates the source as much as possible.
B.) Attach the main battery and the camera to one tray, and isolate this tray from the rest of the copter. I will post a picture of how I do this when I get home. The tubing isolates, and the inertia of the whole tray dampens it.
C.) If flying a tricopter or one with similar positive yaw control, use a good tail servo that doesn't jitter or have play in the gears.
D.) Balance your motor cans if you need to. The DT750's I use don't seem to need it though. You can use a zip tie wrapped around the can and move it around until the vibrations decrease.
E.) Wood booms will absorb (dampen) vibrations more than aluminum or CF.
Last edited by SecretSpy711; 13th June 2012 at 06:36 PM.
The knack to flying lies in learning how to throw yourself at the ground and miss.
Here is my vibration free 1080p video entry using the QAV500 FPV Quadcopter frame http://qav500.com
The frame is separated into two parts with good vibration bobbins connecting the two. So you can simply attach the GoPro with a bit of neoprene tape. This solution also reduces vibrations to the flight cam, down cam, flight controller and other electronics.
View this video on YouTube
Last edited by timnilson; 13th June 2012 at 08:07 PM.
I´m with eliminating the source. IMO rolling shutter is all about high freq vibes from motors/props. Personally, I never had issues with the Contour or the Gopro but I am really anal about balancing stuff. ( magnetic balancer and individually feeling vibes from EACH motor). My former quad was really stiff carbon and no rubber mounts at all. ( just double sided tape 3x under the FC )
I do fight those occasional wobbles though.... but that´s another story.
seeing the world through a security camera