• Matt (Admin) wrote a new post 8 months ago

    Inflation Bag Boston Valve Adapter Evan Rodgers emailed to show me this simple and ingenious method of using a second Boston valve to create an inflation bag adapter that screws into […]

    • That’s really cool. I need to come up with an adapter that functions the same way for my pump but also supports the top-up valve.

    • I found this 3d printed adapter posted on Printables.com. It is a perfect fit for the boston valve and, with a slight internal diameter adjustment, will fit snugly over the top-up inflation stems for the backrest and seat.

      https://www.printables.com/model/809119-inflation-bag-adapter-for-packraft-boston-valve

    • If I understand correctly, cutting the Boston valve isn’t necessary. You just need a flange on the inflation bag and put a valve piece between the inflation bag flange and the packraft flange. This should work because I think flanges can be screwed to both ends of the value (with the cap open obviously). You can use a valve with the rubber bit removed to quickly inflate the packraft then switch to a valve with the rubber bit still there to top up the with the inflation bag (no longer needing to top off with your lungs). Is this correct? Is that how you have been using it? I’m considering getting another Boston valve for my inflation bag to try it out. Does it work well?

      • Haha, I never thought of that, but you’re absolutely right – you could just iron the flange to the bag.

        You might be able to screw the inflation bag flange onto the boat’s check valve after it’s screwed in for the final top-up… yes, I do think that would work. The downside is that screwing the bag on and off would almost certainly take longer than using your mouth for those last five or six breaths. It’s possible you could get a higher air pressure in the packraft using the bag, but because the threads aren’t a perfect match between the flange and the top side of the check valve, I’d be careful to avoid damaging them by trying to force a lot of air in.

        I actually haven’t tried the valve-in-the-bag method myself, so if you test this before I get to it, please let us know how it works out!

  • Web Store MaintenaceSome of the software I use to run the DIY Packraft Shop has recently been updated to enhance security and functionality, so if you encounter any […]

  • Great solution! I hope the first float was a success.

  • Hmm, that’s unusual… I’ve actually never seen that before. Could you send me some pictures from the inside of the cockpit, and maybe take one or two shots through the valve opening so I can see where tubes 4L and 4R are attached to the floor (if possible)? It does look like something might be separating there, but I can’t tell why. Can you see…[Read more]

  • Matt (Admin) replied to the topic in the forum DIY Accessories 8 months, 2 weeks ago

    Very cool! I was thinking about foot rests just before you posted this, because I’m testing out a new seat, somewhat similar to yours. The footrest looks like a great design. I’m curious if you’ve tried using it without stuff inside it, just inflated – you mentioned that the larger one felt like pressing against a balloon, but I wonder if this one…[Read more]

  • Great to know! Thanks for the update.

  • Matt (Admin) replied to the topic in the forum DIY Accessories 8 months, 2 weeks ago

    Very cool! I should really get one of those pumps… and a 3D printer! I’m seeing some great ideas lately.

  • Video: The Fabrics I made this video to show the current fabrics that I use to make the Ultralight and the standard weight DIY Packraft kits. In the video, I talk […]

  • Matt (Admin) replied to the topic in the forum DIY Accessories 8 months, 2 weeks ago

    What a cool idea! Thanks for sharing. This might deserve to be a whole forum topic on its own.

    It’s an interesting idea to use prongs to hold the check valve open – is the pump not strong enough to pump air through the valve, or does it just work faster that way?

  • In my tests, the D-rings themselves break at about 45 kg or 99 pounds load (on average), and the attachment point itself should be stronger than that, but over time things could wear. If I were you, I’d probably use it as-is but keep an eye on it and if it looks like distributing the load over one or two more points would help, then it looks like…[Read more]

  • Matt (Admin) replied to the topic Seam Sealing in the forum DIY Packrafts 8 months, 2 weeks ago

    I’ve never tried it, but I don’t think it would be a problem… I would try it in an inconspicuous area and see how it looks, and if it doesn’t melt or do weird things, carry on.

  • Thanks for the report, Zach. It sounds like it would be good to have one of those as a secondary iron for little finicky things and hard to reach places. I might pick one up. Cheers

  • Hi Mateo, don’t worry – it’s not hard to fix! If you look ahead to the Front Center Seam step and scroll down near the bottom of the page, there are instructions in case you run into a similar situation: https://www.diypackraft.com/construction/how-to/instructions-telkwa-kits/telkwa-assembly-front-center-seam/

    Cheers!

  • I’m not familiar with that product, but it sounds great. I would test it by ironing some scrap fabric over it to the point that the TPU melts and sticks to the parchment paper, and then let it cool and see if it peels cleanly away without leaving any residue.

  • Matt (Admin) replied to the topic Oops! in the forum DIY Packrafts 9 months, 1 week ago

    I don’t think it’ll be a problem – if anything, it will probably be stronger than it was originally, now that it’s sandwiched between two layers of fabric. If it happens again though on a different seam, I would wait to patch it until after the adjacent tubes are attached, because you’ll have to work around that bottom patch when you finish off…[Read more]

  • The first orange DIY Packraft Customer Steve Gurney sent me these great pictures from his first trip in his DIY Packraft Skeena. Steve was one of the first people to order the […]

  • Matt (Admin) replied to the topic in the forum DIY Accessories 10 months ago

    It looks like my previous response got lost… hmmm 🙁

    Awesome posts! Could you send me a picture or drawing of your changes to the spray skirt? I’m happy to change the design if that would make it more useful. I was also testing a version of your thigh straps here before freeze-up, and a more forward seating position.

    One thing I noticed with…[Read more]

  • A place to share pictures, descriptions, and designs of the packrafting accessories you’ve made.

  • Matt (Admin) replied to the topic Seam Sealing in the forum DIY Packrafts 10 months, 1 week ago

    I’m not aware of anyone having tried this, so if you do, please let us know how it goes. Thanks!

  • That looks like it would work if the temperature specifications are accurate. With its small foot it would be slower than a leather iron. If you try it and it does work, please let us know!

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