maybe it's because jobst never builds with welded rims. /my/ experience is that welded rims need over-tension. and i would expect that if excess weld material makes that section more rigid.
The change in curvature between a built and unbuilt wheel is going to be very small, though. I'd wager that it depends on how the rim was distorted when the joint was put in... could go either way.
in theory, yes. as pointed out by others, there's often a tiny flat spot where the weld flashing is machined off, and using a truing stand like a ts2 doesn't exactly emphasize the problem, but with every welded rim i've built, it's needed higher tension for the 2 spokes at the join. i build with an attachment to my ts2 so i have a proper handle on radial trueness, not just lateral, which is all that stand really does.
maybe it's because jobst never builds with welded rims. /my/ experience is that welded rims need over-tension. and i would expect that if excess weld material makes that section more rigid.
Quoted message said:
The change in curvature between a built and unbuilt wheel is going to be very small, though. I'd wager that it depends on how the rim was distorted when the joint was put in... could go either way.
in theory, yes. as pointed out by others, there's often a tiny flat spot where the weld flashing is machined off, and using a truing stand like a ts2 doesn't exactly emphasize the problem, but with every welded rim i've built, it's needed higher tension for the 2 spokes at the join. i build with an attachment to my ts2 so i have a proper handle on radial trueness, not just lateral, which is all that stand really does.
Your TS-2 is different, then, from any other I have seen or used (?).
On Mar 31, 11:23 am, jim beam <[email hidden]> wrote: > maybe it's because jobst never builds with welded rims. /my/ experience > is that welded rims need over-tension. and i would expect that if > excess weld material makes that section more rigid. The change in curvature between a built and unbuilt wheel is going to be very small, though. I'd wager that it depends on how the rim was distorted when the joint was put in... could go either way.
in theory, yes. as pointed out by others, there's often a tiny flat spot where the weld flashing is machined off, and using a truing stand like a ts2 doesn't exactly emphasize the problem, but with every welded rim i've built, it's needed higher tension for the 2 spokes at the join. i build with an attachment to my ts2 so i have a proper handle on radial trueness, not just lateral, which is all that stand really does.
Your TS-2 is different, then, from any other I have seen or used (?).
it only comes with calipers that run for a wheel's lateral dimension.
you can "see" roughly where radial is, but it's not as good as having a true radial caliper, which i what i added to mine. a popsicle stick held on with a magnet is a cheap alternative.
Ron Ruff wrote: > On Mar 31, 11:23 am, jim beam <[email hidden]> wrote: >> maybe it's because jobst never builds with welded rims. /my/ experience >> is that welded rims need over-tension. and i would expect that if >> excess weld material makes that section more rigid. > The change in curvature between a built and unbuilt wheel is going to > be very small, though. I'd wager that it depends on how the rim was > distorted when the joint was put in... could go either way. in theory, yes. as pointed out by others, there's often a tiny flat spot where the weld flashing is machined off, and using a truing stand like a ts2 doesn't exactly emphasize the problem, but with every welded rim i've built, it's needed higher tension for the 2 spokes at the join. i build with an attachment to my ts2 so i have a proper handle on radial trueness, not just lateral, which is all that stand really does.
Quoted message said:
Your TS-2 is different, then, from any other I have seen or used (?).
it only comes with calipers that run for a wheel's lateral dimension.
