Please do not do this!!!:- see replies from Mal Volio & JJ
Aluminum frames have large diameter tubes, and invariably the cable stops are integral to the frame.
Unfortunately, the adjuster bolts in my example of such a frame seized up. Attempts to loosen the bolts failed, so I did this:
To mount the band-on (originally part of a set of dt shifters):
1. Bend the band such that it matches the profile of the down tube
2. Mark where the bolt holes of the band are on the tube
3. Drill two 2mm holes. Note that aluminum is soft, and aluminum tubes are thin, so it won't take many turns of a hand drill.
4. 'Tap' the holes using a 2.5mm steel bolt.
5. Use such bolts to attach band to frame.
Neither pretty nor clever, but surely better than getting rid of the frame? My engineer friends weren't that impressed, though.