Originally Posted by
TwoFourOne
...can I ask if this will still work in my case?
There's a reasonably good chance, but no promises.
Sometimes the bends are just too local, too sharp to come out well.
If the rim is just pinned at the seam, it may come apart as you try to straighten it.
Now, the seam coming apart isn't critical as such (it'll pull together once you start tensioning the spokes again), but it may prevent you from getting enough leverage to straighten the bend.
Originally Posted by
TwoFourOne
... Cny-bikeman gives off the impression that it's hard to fix.
Difficult is a null word in these circumstances. Making it better - easy. Making it serviceable - readily manageable. Getting it really, really good - tedious and difficult. And its hugely dependent on the characteristics of the rim, the nature of the bend, and your sense of judgement/skill.
Originally Posted by
TwoFourOne
...Wouldn't I just put the rim on wooden blocks, so that the high spots (red in my picture) are on the blocks, and then put a lot of pressure on the unbent (white in my picture) parts of my rim?
That's how I'd do it, but there are undobtedly variations on the theme that'll do just as well. Keep a few different blocks, or paperback books or basically anything sturdy with a non-marring surface available and start low, something like the 2" range. Safer to work up to avoid overshooting.
Originally Posted by
TwoFourOne
...Both sides at once (ie, standing on both unbent sides)?
That'll ultimately be decided between the characteristics of the rim and the nature of the bend.
I start like that, but I often end up having to move my feet closer to the bend to get the desired result.
Like this:
-let's say you have high spots at the 6 and 12 o'clock positions, and those are resting(hump side down) on blocks
-first step on to the rim at the 3 and 9 o'clock position, bounce a little.
-inspect
-put rim back, step on to the 10 and 2 o'clock position, bounce a little.
-step onto the 4 and 8 o'clock position, bounce a little
-inspect
-If required repeat the above with higher blocks, or feet closer to the high spots.