The late David Charlesworth was a superb woodworker. This is the best demonstration of cambering with the SE-77 that I have found.
https://youtu.be/Bfd-xzOF5sc?si=_04kB3L-veZorMvj
Ken
I've been away for a while pursuing other interests, and have finally started back into my woodworking hobby. I was fortunate to take four of David's week-long courses, with the last course ending in March 2020, just before the pandemic. I barely made it back to Germany before all flights out of the UK stopped.
The first course I took in 2019 was his Tool Tuning Course, which included putting a camber edge on the plane irons. By then, he was no longer using the SE-77 for the camber, but did use it to establish the 25-degree primary bevel on the irons and chisels. The adjustments on the SE-77 made it very easy to compensate for any differences between the diamond stone surface and the USB.
For the camber, he used a combination of thin shim stock on one edge and pressure points along the edge of the iron to establish the slight camber. I tried both methods, and prefer the shim and pressure point method, but two of my friends swear by the SE-77. It's results that count, and we are all happy.
Mike,
How fortunate that you had the opportunity of studying with David Charesworth. I know that he preferred to use the Tormek only for grinding the primary bevel. I'm sure he had good reasons for this preference; I just wish I knew his reasoning.
Ken