Some of the Beneluxheads started a few years ago with drawing a .dwg of the SS frame but since most of us have also a job to do and
bare frames of bevel SS are not found easily, that project came to a stop.
There were a few framemakers who made TT2 and TT1 frames but I guess they just made a jig to fit headstock and enginemounts and then just "connected the dots"
Since (I guess) a few of us have a bare frame someplace , there is a "fairly easy" method to compare (important and critical) dimensions (except the Original Pantah frame which has the extentions to the lower enginebolts).
Just put the frame on a flat surface so that the headstock rests on the table, together with the front enginebolt.
Fitting a pair bearings and inserting a tube so that You can mark the contactpoint of the virtual line that goes through the center of the headstock.
With all the known and measurable dimensions it's fairly easy to draw a .dwg (or similar) and compare the three things that matter (at least that's what I think) : angle, height and distance from the headstock to the front enginebolt.
The rest are fixed points OR personal preferences within the known dimensions such as ride height and trail.
browsing your tubes can deliver a few tips of how it's done.
The rest is blood, sweat, tears and cash
Of course it would be easier if I just went to Verlicchi and asked for the Original drawings
And now back to the "digital drawingboard" to draw my new personal Ducati workspace in progress.
ciao
ducadini