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  1. #1
    mtbr member
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    Frame numéro un

    So after years of lurking and many months gathering everything needed, my adventure as finally started!

    First off; sorry for the frenh title. Reason is, I like how some users have distinct thread title for their builds. Being french Canadian, I figured this could be my "trademark" (and also excuse all my spelling errors!). Hopefully, my build are interesting to some.

    Second, sorry also as this is not a full on mountain bike... Moderators, feel free to delete is you feel this is irrelevant to this forum. This whole frame building adventure has been with the ultimate goal to build mountain bikes. Hopefully, my thead will be helpful or interesting to some.

    This frame is meant to be a 26er based touring bike. I kept it simple stupid and cheap for sake of learning. Classic design and geometry. Straight CS and SS. It will be assembled with components stripped from my old mtbike and the spare parts bin.

    The geometry is as followed:
    Frame numéro un-01-touring-geo-rev0-2013-11-20.jpg

    Tubing are:
    HT: NOV_COHT - OD 37.0 - Wall 1.6
    TT: RC2DT - OD 28.6 - .9/.6/.9
    DT: HVER01 - OD 31.8 - .8/.5/.8
    ST: SALST1 - OD 28.6 - .9/.6/1.22 external butted
    CS: HOXRCCS - 20x28 oval tapered to 12.7 straight
    SS: HOX2SS - OD 19 tapered to 12.7 straight

    Overall, things have been going slowly but surely. All the main tubes and bridges are brazed. Now I need to clean the fillets, check the straightness of my work (or lack there of!) and cold set accordingly, braze the brake bosses on the SS, silver braze all the small braze on and get all the reaming and facing done at my LBS. So still many hours in the shop left!

    Here are some pics. Comment and constructive criticism wanted.

    Frame numéro un-pb200041.jpg

    Frame numéro un-pb200030.jpg

    Frame numéro un-pb200032.jpg

    Frame numéro un-pb200033.jpg

    Frame numéro un-pb200034.jpg

    Frame numéro un-pb200036.jpg

    More updates as the build continues!

  2. #2
    Randomhead
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    thanks for posting pics, do you have any process pictures?

    Cold setting is easier before the seat stays go on

  3. #3
    Nemophilist
    Reputation: TrailMaker's Avatar
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    Ca Va, Frank;

    No apologies necessary. You're doing fine. You've either practiced a lot, or you have a natural gift for brazing. Looks very good for a rookie. Most people struggle to ever get that good. Cleanup should be fairly easy from there. I haven't brazed in years. I doubt I could do that good. Yes, we would like to see some process pics if you have them. Your thread should be popular, as the number of builds has been pretty thin lately. We'll be waiting!
    Most people ply the Well Trodden Path. A few seek a different way, and leave a Trail behind.
    - John Hajny, a.k.a. TrailMaker

  4. #4
    mtbr member
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    Looks good to me. Would definitely be interested in seeing more build pics.

  5. #5
    mtbr member
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    Thanks for the encouragements! I kinda got carried away with the result on this one... I don't have pics of the process. I promise I'll do a better job on the next one.

    Regarding cold setting, I did track the "straightness" of each of my sub assemblies (I followed the Paterek sequence). Not having a flat surface to measure on, I used my jig as a "checking fixture" to see if my tubes moved after brazing.

    One area where I did have problems is centering the wheel dead center between the CS. I ended up having to reheat one of the tab style DO and pull it... not an easy job!

    Next time, I will definitively braze the CS to the BB first and adjust the wheel's center position by sliding the DO while the are NOT brazed on. Does that make sense?
    Last edited by frankzetank; 11-22-2013 at 08:31 AM.

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