This idea just struck me this morning and I rushed to put it to work.
I am asking my pro-wrench friends at BF.C if this will actually work.
As fate would have it, I have a mountain bike in which the chainring side crank is loose. No amount of tightening would fix it.
On inspection, I found that the square hole of the aluminum crank arm was a bit worn. "Alas, I'll have to get a new crank arm", I thought.
Then, the brilliant idea came over me today to try to shim the spindle/crank with aluminum foil.
I cut a thin strip of aluminum foil and wrapped it around the axle/spindle. Then, I put the crank arm on and tightened it down.
The initial ride around the block went well.
What do you think; will this work? Could I possibly be a genious, or has this been thought of before?