Hopefully I'm posting this in the right place...
So I'm making some oil caps and I've put a straight knurl on the outside face, but thr knurl isn't as nice as I'd hope and for future caps I'd like to improve on it! I've done a bit of research but can't fathom my head round it! The piece of aluminium (yes I know not ideal for knurling) is 60mm od, the knurling wheel I have is a 36tooth wheel, 15.8mm diameter. I'm not sure how you work out what the tpi of that wheel is and if it is correct for knurling a piece that large, or do I need a coarser wheel? The knurl almost looks like it's skipping between the knurl it's already formed. Which leads me onto my next question
Should you feed into the metal then go along? Or start in front of the piece at the set depth and then feed along?
Hopefully someone out there is more knowledgeable than me on knurling...
Sean