• Please review our updated Terms and Rules here

Radius of track 0

nige the hippy

Veteran Member
Apr 7, 2006
Luton UK
Hello there,
After having a good look through the TM100 TM65 5.25" and Calcomp 140 8" floppy tech manuals, I can find plenty of references to track spacing & width, but no reference to the radius of track 0.
My thoughts being that if one day all the oxide falls off my alignment disks, I can still access a profile projector/travelling microscope, and manually adjust a head to the correct position for track 0 (and possibly write some sort of alignment disk too).

Anybody know or know where to find out (and the numbers for 3.5" 3" 2.8" and either 2" or 2.5" whichever the minisport uses too if poss!)