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Old 06-05-2013, 03:43 PM   #1
marginatus
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Gopro C4 mount prototype

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...
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Old 06-05-2013, 03:51 PM   #2
SpearoTastic
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Re: Gopro C4 mount prototype

Sweet! How can I get some for my Urukay 120 and Graphite 116 & 132?
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Old 06-05-2013, 06:44 PM   #3
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Re: Gopro C4 mount prototype

Need one for my mr.carbon 119.
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Old 06-05-2013, 10:36 PM   #4
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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?
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Old 06-06-2013, 06:06 PM   #5
marginatus
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Re: Gopro C4 mount prototype

Quote:
Originally Posted by SpearoTastic View Post
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 View Post
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 View Post
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.
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Old 06-06-2013, 06:40 PM   #6
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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..
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Old 06-06-2013, 06:51 PM   #7
marginatus
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Re: Gopro C4 mount prototype

Quote:
Originally Posted by jfjf View Post
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...
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Old 06-10-2013, 09:05 AM   #8
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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.
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Old 06-10-2013, 09:22 AM   #9
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Re: Gopro C4 mount prototype

Quote:
Originally Posted by AlexbeeintheUK View Post
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.

Last edited by marginatus; 06-10-2013 at 09:51 AM.
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Old 07-17-2013, 06:05 PM   #10
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Re: Gopro C4 mount prototype

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.
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Old 07-19-2013, 09:46 AM   #11
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Re: Gopro C4 mount prototype

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.
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Last edited by marginatus; 07-19-2013 at 03:38 PM.
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Old 07-20-2013, 12:59 PM   #12
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Re: Gopro C4 mount prototype

Quote:
Originally Posted by marginatus View Post
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
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Old 07-20-2013, 02:50 PM   #13
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Re: Gopro C4 mount prototype

Send me a PM with your Paypal ill test one out. Thanks
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Old 07-23-2013, 05:57 PM   #14
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Re: Gopro C4 mount prototype

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).
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Old 07-23-2013, 06:10 PM   #15
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Re: Gopro C4 mount prototype

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Send me a PM with your Paypal ill test one out. Thanks
PM sent
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