Originally Posted by MysterySandwich
EDIT: Pipe Repair Clamps... will those be effective for "repairing" my frame?
Personally, I'd just make one from sheet metal using a vice and a scrap pipe for the mold, but you might find (a right size) one you can just use. You don't need the rubber. That's for water-tightness. You'll still need to drill some holes and add bolts to secure it from separating. Maybe add a couple of welds when you find somebody with a machine.
If you want to do an internal sleeve, you'll need to cut the seat tube at the crack with a tube cutter > separate the broken parts horizontally > insert internal tube in one of the broken ends (make a hole in the seat tube to stick small screwdriver or something to manipulate the internal tube)> align the tubes > push the internal tube so the cut is at its center of length > drill holes> bolt with hard bolts.
And another idea: Frames by themselves are easy to get for free. Post an ad on Craig's list saying you want bike parts "Dead or Alive". A begging sign by your curb will work too.