Quote:
Originally Posted by MrB
Not scared of a little math?
I've scanned a few things you might find useful, also found a few PDF files I'd saved from the net over the years... put them all together in a zip file that you can download here: worms.zip* |
Thanks Simon, very helpful link.
Most of my previous reference URLs condensed into a single zip.
Very handy! I'll try and upload it to my site and see if it can handle 9mB!
Dad showed me a few Engineer's Notebook pages similar to some
of those.
I'm currently digesting a lot of that theory before I dive into
making the serious blanks.
Interesting where they say even 1 thou error on any worm face
can cause as much as 45 arc sec error. After polishing/ lapping it can be
minimised but it pretty much says your wasting your time if the
disk is less that 6 inch diameter and the hobbing method so-so.
Steve