Ok your 'Mark 5' fence from SS Inc. had two offset screw threads. As I 'discovered very recently' the Mark VII also has two.jjbuzard wrote:I didn't say it was defective, I said it was clunky, if it wasn't, why was it redesigned not once but twice, 510 -520, TO MAKE IT BETTER, I thought it didn't work well, after using newer designs. Now I find out that every set screw but 2 on my unit is wrong, I didn't change them, it came that way. My intent, to make it better, I have stated that all along, and it does work better.reubenjames wrote:Everything Ed just said.
We are concerned / curious when you describe a working design as defective, ...... Your characterization of the older fence design was starting to sound like what C.S. Lewis called "chronological snobbery", implying that something was inferior simply because it was older.
I hazard a guess that the Mark 5 dies became unusable and the Mark VII dies were usable. Hence the SS Inc. Mark 5 version has the two holes.
As for the hubs, the idler shaft and ALL SPT hubs should have cup ends. The upper shaft hub should have oval I think.(mzaybe not!)
There is nothing wrong with 'deviating' from 'oem' stuff as long as it is recognized as such. FWIW I think the MS has been confused at times and the wrong ones get installed.
Yes there are two versions of a Mark 5 fence and one of them became the '500' fence.
As for 'fence redesigns' they were a part of a much greater redesign that included the tables which required fence changes.
Watch your logic! It fails scrutiny.