Trevor,
I did some knurling this weekend and had to think about it again. I went
to Little Machine Shop
( ) and got it
figured out from there.
Nice work in the picture.
Cheers,
Andrew in Melbourne
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On Sun, 2011-10-23 at 16:37 +0000, trevor_rymell wrote:
Can someone advise me about knurling, please?
I've been using an Eagle Rock scissor knurling tool with a couple of
medium diamond knurls for some years now with satisfactory results.
I've never given any thought to the work-piece diameter in relation to
knurl pitch and have always managed to get fairly clean results -
mostly in brass and alloy. Not quite sure why but they always seem to
turn out ok.
20Motorbikes/DSC00395.jpg
What I'd like to do now is buy some sets of straight knurls but never
having tried these before, I feel I need some advice.
For example, I assume it's critical with straight knurls to calculate
the OD of the work piece as a multiple of the dia or pitch of the
knurl.
What I don't understand yet is how the two knurls are positioned so
that they mesh male to female so that the crest of the "male" matches
the trough of the "female"? Just thinking about it, I can't see how
you prevent crest meeting crest and ending up with double-tracking.
Any advice would be much appreciated.
Trevor
