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  1. You won't melt the post with a propane torch, the...

    You won't melt the post with a propane torch, the heat will diffuse away. Looks like there is little room to hook up a slide hammer. Try slotting the post into section with a hacksaw or reciprocating...
  2. Replies
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    1,258

    Curved tubes can be aesthetically pleasing and...

    Curved tubes can be aesthetically pleasing and are sometime functional (chainstays/seatstays for tire clearance, seat tube for short wheelbase, fork blades for some level of suspension or for...
  3. Regarding the costs... Are you planing on...

    Regarding the costs... Are you planing on building a frame? If so I would expect greater expenses arising from the needed equipment and skill learning.
  4. What's your source for mild steel tubing?...

    What's your source for mild steel tubing? Aircraft spruce's 0.035"-walled 4130 tubing is about $5/foot and $7/foot for tubing under and over 1" diameter, respectively. You can get a full kit of...
  5. Thanks! The stem is chrome-plated steel, made for...

    Thanks! The stem is chrome-plated steel, made for the frame. Here is a pic of the cable routing. Somewhat hidden is a loop of housing for the front derailleur.

    457932
  6. Some progress on the bike... just need some long...

    Some progress on the bike... just need some long straight pieces to jig up the front...

    457851



    OP, will you deliver?
  7. Thread: Bottom HT lug

    by tuz
    Replies
    26
    Views
    1,064

    I'd say that as long as the patch is within a few...

    I'd say that as long as the patch is within a few cm of the butt transition it should be fine. This looks like a road bike; MTBs with long suspension forks will see much higher stresses, hence the...
  8. Well it was heated enough to temper it, it's...

    Well it was heated enough to temper it, it's chrome plated, and a new steer tube costs $10...
  9. The inside dents are for tire clearance, the...

    The inside dents are for tire clearance, the outside dent is for chainring clearance.
  10. Thread: Bottom HT lug

    by tuz
    Replies
    26
    Views
    1,064

    It's really up to you. Did you set the lug at...

    It's really up to you.

    Did you set the lug at the right angle, but it moved during brazing?
  11. You would need to remove the plating, clean the...

    You would need to remove the plating, clean the crown's ID and braze a new steer tube in along with a ring to accept the crown race. You need a jig to ensure the proper alignment of the steer tube....
  12. Thread: Bottom HT lug

    by tuz
    Replies
    26
    Views
    1,064

    I would open the fit, focusing on the top of the...

    I would open the fit, focusing on the top of the socket near the HT and try to bend the bottom spoon of the lug. The lug should slide with little force anyway and not be too tight. Bending after...
  13. Thread: Bottom HT lug

    by tuz
    Replies
    26
    Views
    1,064

    Yes it's hard to clamp the top of the lug....

    Yes it's hard to clamp the top of the lug. Sometimes holding it in a vise works a bit better. I would have no worries about opening up the lug a little. How tight is the fit? And how do you check the...
  14. Nobody in their right mind has room for a cargo...

    Nobody in their right mind has room for a cargo bike. But after using one I say it's worth it!
  15. Something I did recently: 450039 Something...

    Something I did recently:
    450039

    Something I'm working on:
    450040
  16. Agreed! Nice to see another supplier. And the...

    Agreed! Nice to see another supplier. And the rack tabs look great too.
  17. Replies
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    I've built two forks with 20x2.0" (ISO 406)...

    I've built two forks with 20x2.0" (ISO 406) wheels, so roughly the save size if you have small tires. I used plate dropouts (slotted blade) and trimmed as much as possible on the small end. It was...
  18. Replies
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    1,172

    I think that you should do some test joints...

    I think that you should do some test joints before jumping into the actual frame. Get some cheap lugs and tubing. Take that joint as practice and cut it up to see what sort of penetration you got....
  19. Posts for centrepulls are shorter (10mm) that...

    Posts for centrepulls are shorter (10mm) that those for cantis, but the OD is the same. Like was said the spacing is more critical with centrepulls than for cantis.
  20. Thread: Mass Manufacturing

    by tuz
    Replies
    46
    Views
    3,249

    Procycle in Canada used to manufacture bicycles....

    Procycle in Canada used to manufacture bicycles. Cheap ones (CCM) and slightly better ones (Peugeot). I don't think they are produced here anymore.

    Here is a vid of their production facility....
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    814

    If I remember right the fit was tight enough that...

    If I remember right the fit was tight enough that a bit of sanding made it fine.

    My bending form (wood) is grooved at a 1/2" dia. My friend has the Hammill (I think) with the v-groove.
  22. Replies
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    814

    I never bothered to measure crown sockets or...

    I never bothered to measure crown sockets or blades. I usually squish the blades slightly in the required axis (with some back and forth) until it fits.

    The trail won't change if you take the...
  23. I also use the tapered rolls on a dremel at low...

    I also use the tapered rolls on a dremel at low speed. Filing is difficult... and harder to describe. Basically the file moves mostly parallel to the tubes but with a slight forward motion, from one...
  24. All I can say is that the serrated lugs remind me...

    All I can say is that the serrated lugs remind me of Columbine lugs. Not quite as ornate though.
  25. Replies
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    604

    I'm reviving this old thread since I was faced...

    I'm reviving this old thread since I was faced with a similar issue. The plastic cap on the shifter indicated some SIS/friction toggle but it wasn't obvious how to change the mode. Seeing post #4 I...
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