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-   -   Gopro C4 mount prototype (http://www.spearboard.com/showthread.php?t=162145)

marginatus 06-05-2013 03:43 PM

Gopro C4 mount prototype
 
5 Attachment(s)
Finally received my prototypes...
Just have to make some tweaks in the 3D model and have the final version made in SS and plastic.

I had a mount but wanted something that had the least amount of parts as possible (just one in this case), had a slimmer profile and kept the camera in a position where it would interfere the least with loading and aiming while giving a more POV perspective. Also wanted to be able to mount/release the camera quickly...

SpearoTastic 06-05-2013 03:51 PM

Re: Gopro C4 mount prototype
 
Sweet! How can I get some for my Urukay 120 and Graphite 116 & 132?

1911Diver 06-05-2013 06:44 PM

Re: Gopro C4 mount prototype
 
Need one for my mr.carbon 119.

jfjf 06-05-2013 10:36 PM

Re: Gopro C4 mount prototype
 
Have you tried it yet? I have had issues with recoil knocking the camera back at the exact time of the shot and missing it?

marginatus 06-06-2013 06:06 PM

Re: Gopro C4 mount prototype
 
Quote:

Originally Posted by SpearoTastic (Post 1837108)
Sweet! How can I get some for my Urukay 120 and Graphite 116 & 132?

That's one of the reason I wanted it to be quick release... so i can quickly change the camera from my Urukay 120 and my Graphite 116

Quote:

Originally Posted by 1911Diver (Post 1837190)
Need one for my mr.carbon 119.

I'll make some refinements on the 3D model, this weekend, and then order the final versions in plastic (thicker then the one in the pictures), SS and Brass. I should have these by the end of the month and then let you all know how you can get them.

Quote:

Originally Posted by jfjf (Post 1837294)
Have you tried it yet? I have had issues with recoil knocking the camera back at the exact time of the shot and missing it?

I haven't tried this one yet (arrived yesterday) but on the other one I have, when the screw is not properly tightened and there a little recoil (2 bands at 360%) the camera tilts to the front a little in the moment of the shot... that can be prevented with a small plastic insert... I might make those too...

thanks fro the interest.

jfjf 06-06-2013 06:40 PM

Re: Gopro C4 mount prototype
 
With respect to recoil.....I have had good luck with using an L bracket that sits under the mount and behind the camera. Attach with a zip tie or rubber bands..

marginatus 06-06-2013 06:51 PM

Re: Gopro C4 mount prototype
 
Quote:

Originally Posted by jfjf (Post 1837652)
With respect to recoil.....I have had good luck with using an L bracket that sits under the mount and behind the camera. Attach with a zip tie or rubber bands..

That works but I'm going for the minimal approach :)
Do a google search on gopro recoil keeper to see what I mean...

AlexbeeintheUK 06-10-2013 09:05 AM

Re: Gopro C4 mount prototype
 
If the base of your mount had a solid bottom (instead o being 'hollow') you could use the gopro security plug (which comes with the camera) to help prevent recoil and improve overall stability.

marginatus 06-10-2013 09:22 AM

Re: Gopro C4 mount prototype
 
Quote:

Originally Posted by AlexbeeintheUK (Post 1838892)
If the base of your mount had a solid bottom (instead o being 'hollow') you could use the gopro security plug (which comes with the camera) to help prevent recoil and improve overall stability.

The new version of the mount has a solid base in the plastic version. On the metal one, I added some structure but it's still manly hollow.
I believe that the plug can stay in place by friction only (and it's connected to the screw so it won't get lost)...
This plug doesn't help with the main recoil problem which is that the camera tends to tilt forward...

thanks for the feedback! I'll consider it for the next version.

marginatus 07-17-2013 06:05 PM

Re: Gopro C4 mount prototype
 
6 Attachment(s)
New version arrived today... testing it tomorrow. There was an issue with the metal version and it was postponed but I'm really happy with the plastic that I might not go for metal after all.

marginatus 07-19-2013 09:46 AM

Re: Gopro C4 mount prototype
 
1 Attachment(s)
First testing day... My first point nose grouper (Mycteroperca fusca)
Unfortunately, there's no footage as the camera battery was long gone... more then 6h session.

marginatus 07-20-2013 12:59 PM

Re: Gopro C4 mount prototype
 
Quote:

Originally Posted by marginatus (Post 1852917)
New version arrived today... testing it tomorrow. There was an issue with the metal version and it was postponed but I'm really happy with the plastic that I might not go for metal after all.

I already found a (very unlikely to happen) way to break these and am now working on a new version. If anyone wants to try these I have a few that I can send for 8€ (just to cover shipping and part of the material). thanks

1911Diver 07-20-2013 02:50 PM

Re: Gopro C4 mount prototype
 
Send me a PM with your Paypal ill test one out. Thanks

marginatus 07-23-2013 05:57 PM

Re: Gopro C4 mount prototype
 
2 Attachment(s)
This is V3 of the mount for C4 spearguns and Gopro quick release
Already sent to print... should arrive in a week.
Much more reinforced; screws will be sunk in; more the double the material used. Mass ~15g and a little positive with a density of ~0.93g/cm^3 (mount alone floats).

marginatus 07-23-2013 06:10 PM

Re: Gopro C4 mount prototype
 
Quote:

Originally Posted by 1911Diver (Post 1854044)
Send me a PM with your Paypal ill test one out. Thanks

PM sent


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