Experience with Apogee's Homemade Rail Button Plans?

Discussion in 'High Power Rocketry (HPR)' started by Gary Mac, Jun 12, 2019.

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  1. Jun 12, 2019 #1

    Gary Mac

    Gary Mac

    Gary Mac

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  2. Jun 12, 2019 #2

    rharshberger

    rharshberger

    rharshberger

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    Typical of 3 piece rail buttons (plastic parts).
     
  3. Jun 13, 2019 #3

    Gary Mac

    Gary Mac

    Gary Mac

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    Have you flown this design before? I'd love to see a photo of the apogee design assembled if that's the case. I'm familiar with the more typical 3 piece plastic version.
     
  4. Jun 13, 2019 #4

    rharshberger

    rharshberger

    rharshberger

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    I have not flown them exactly as the article details, I have made similar ones from parts that were commonly available in my local hardware stores Hillman fasteners aisles. They are (were) identical (or really close) in form and function to the ones in the PoF and to stock 3 piece rail buttons. The only issue was sourcing the parts reliably ,each time the fastener bin got refilled it seemed there were always a few pieces that were oversized and indistinguishable from the rest, so sorting though the standoffs (nylon tubes) to make sure they slid freely in the slot of a short section of 1010 rail or 1515 rail was a pain. By the time I drove across town, bought the stuff, and drove back home it was cheaper and less work to buy them from https://rail-buttons.com/ and Randy has great service. As far as working they worked fine, as for pictures there are no longer any of the DIY ones on my rockets. The screw should be the only metal part as every club I know of would get upset over metal washers and standoffs in contact with their rails due to galling.
     
  5. Jun 13, 2019 #5

    Gary Mac

    Gary Mac

    Gary Mac

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    Thanks for the heads up about that rail button website. I had not heard of it before, but the products look top notch. I will go ahead and order some from Randy.
     

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