Mtbr's 2016 Winter Biking GearReviews and Roundups

FAT BIKES

WINTER APPAREL

TRAINERS

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  1. #1
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    Taking the plunge. Frame build 1 and 2.

    I've been taking in all I can from this forum for the last year or so and I finally put that to use and built some bikes.

    My welding still needs work, but I'm learning every day!

    As a intro to bike building I built a push bike for my nephew out of cheap/scrap steel and some cart wheels from a tool store.
    Taking the plunge.  Frame build 1 and 2.-img_3121.jpg

    Then I dove into making myself a new dirt jumper. I liked the geometry of my Black Market, so this is very similar, but with minor tweaks.
    Taking the plunge.  Frame build 1 and 2.-img_0217.jpgTaking the plunge.  Frame build 1 and 2.-img_0229.jpgTaking the plunge.  Frame build 1 and 2.-img_0230.jpg

    First test ride.
    Taking the plunge.  Frame build 1 and 2.-img_0234.jpg
    It didn't break!

    Now my only problem is deciding what to make next. Can't decide if it will be a cyclocross bike or a 5.5" full suspension trail bike. I've been modeling the trail bike for a while and it will probably win out.

    -Tyler

  2. #2
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    What process are you utilizing?

  3. #3
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    GTAW. I picked up a cheap (relatively) tig welder earlier this year and started playing around learning as I go. It's a AHP Alphatig 200x with a CK 9 torch.
    Taking the plunge.  Frame build 1 and 2.-img_3058.jpg

    Then I bought some used 8020 off Ebay and thew together a jig. Used my mini lathe to make the cones. Simple for now, I'll update as I go.

    Taking the plunge.  Frame build 1 and 2.-img_0064.jpg

  4. #4
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    Awesome work dude, that DJ frame looks amazing!
    Any chance we could get a little more info on that jig? I'm looking at building a frame or two and I think the jig may be that hardest (or at least most important) part to get right!

  5. #5
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    I used this instructable as a guide:

    The simplest bicycle framebuilding jig I could come up with...

    I used a lighter extrusion than these call for (cheaper and lighter) and it is plenty stiff. Just decide whether you are going to use english or metric units and buy an extrusion to match. Since all your measurements will be based off the jig, it's easier this way.

    Also, this jig style is one of the easier to make without custom machined parts, but it is not the simplest to use. I would suggest doing a lot of research before committing to a design. I happened to have a lathe, so I could make this at home easily. These forums are packed with information! Take advantage of that.

  6. #6
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    Nice build. Lots of confidence and a leap of faith in trying it out.....
    Nothing beats the success of riding your own work.

    Eric
    If I don't make an attempt, how will I know if it will work?

  7. #7
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    Thank you for the kind words. Happy to finally be posting some work up here as I feel I have learned a lot from this forum.

    It was definitely a leap of faith. I made sure to come up a bit short on a few slower speed jumps to test it out before hitting anything at speed. I'm still feeling timid as I have not had a big g-out on it yet.

    On to the full suspension build, I'll post some build pics up as I'm working.

    -Tyler

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