Cheap ABS Plastic GoPro-Tripod Adapters- Mtbr.com
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  1. #1
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    Cheap ABS Plastic GoPro-Tripod Adapters

    I need a cheaper solution to mount my new Yinding clone to a GoPro stem cap mount. While folks like Vancbiker offer quality options, but money is short and I've got a GPS mount that'll need a 1/4" tripod attachment. I've seen some of these as cheap as $1.50 a piece.

    Cheap ABS Plastic GoPro-Tripod Adapters-1414112855708-p-2119119.jpg

    My question is, how long do they last?

    Here was a comment in Vancbiker's aluminum option thread:

    Quote Originally Posted by find_bruce View Post
    But (there is always a but) they have been cracking. The latest one appears to have cracked at the lugs with the crack propagating forward to the hole. It is not clear to me whether the light has been bumped or it is simply the vibration causing the ABS to flex & fatigue.

    I have some large washers that cover the entire base of the mount & so remove almost all of the flex so I will see how they go. I suspect however that ABS is simply not the right material for the job & that I will end up replacing them all (3 bikes, front & rear) with vancbiker's aluminium mounts
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  2. #2
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    I broke one of the cheap ABS unit the first time I touched it while riding. Granted, I deserved to have it break because I tried to adjust the light, I guess, but I have been running a Vanc mount ever since and have had NO ISSUES. While money may be tight, I would go collect cans to save up a bit for a Vanc mount.
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  3. #3
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    I was going to comment, but it seems you already know my views

  4. #4
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    Quote Originally Posted by Knight511 View Post
    I broke one of the cheap ABS unit the first time I touched it while riding. Granted, I deserved to have it break because I tried to adjust the light, I guess, but I have been running a Vanc mount ever since and have had NO ISSUES. While money may be tight, I would go collect cans to save up a bit for a Vanc mount.
    Here are a couple reasons to explain why the adapter pictured has broke easily per the experience of some forum users.

    The adapter shown is injection molded. It is possible that the material is being overheated during the molding process which will degrade it's mechanical properties.

    The material being used could be recycled or be a mixture of virgin and recycled material. Most plastics lose a percentage of their original mechanical properties each time they are processed.

    Particularly bad would be a combination of overheating during the molding process while using material with a large percentage of recycled content.

    The material I machine the adapters from is 100% virgin ABS plate. I chose this material for it's fairly good impact strength, ease of machining, and relatively low price.
    GoPro adapters for bike lights http://www.pacifier.com/~kevinb/index.html

  5. #5
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    Kevin, thanks for your input.

    I know full well you offer a better product, made in the USA.

    What is the price comparison between metal and ABS mounts you offer?
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  6. #6
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    ABS plain tab is $5.50, Aluminum plain tab is $12.00. Material costs are pretty close at the moment. The main difference is that the ABS cuts faster and takes less time to smooth the edges that the CNC can't do.
    GoPro adapters for bike lights http://www.pacifier.com/~kevinb/index.html

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