Hello all,
A US turner, Gene Calvano has created a very useful App for woodturners and is making it available free of charge.
The details are in the attached PDF file.
At present it is only available for ipad/iphone but will have a windows/MAC version soon
You need to download a free file maker program from ITunes to support the app, but I've downloaded it and installed and it's fine.
Now go and enjoy! And please remember this was made free by the generosity of one individual, so if you find it useful and email to him might be nice...
Andy