Gallery, Projects and General > How do I??

Knurl pitch standard?

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Russel:
Thank you Bogs! That gives me a better idea. "Fine" on the first link is .5mm pitch. If I used my calculator correctly, that comes out to about 50 TPI. I was thinking 40, but 50 might be a better choice.

Since reading many of the posts here I have come to realize that the most important tool that anyone has is their brain. We must care for it and sharpen it just as we would our most prized tools. I came to realize that I was just being lazy not taking the time to learn more about machining and to take the time, within reason, to do the job right. This really became apparent after reading your post "Fixing Darrens Lathe." I am not really trying for perfection. I'm just trying to make sense of the vast number of knurl choices avalible to me. I think simple is good and course, medium and fine make a lot of sense to me. I am just trying to figure out what pitch I should consider "fine." I appreciate your help!

At the other end of the the knob spectrum, I figure that I can use the rotory table to overcome the maximum capacity of my little knurling tool, which is one inch.

bogstandard:
Russel,

I use that method of RT work when needing a little more tightening power on my small steam engine oilers, and it has the advantage it is dead easy to make a small peg spanner for it as well. See pic.

I don't blame you at all for going the F-M-C route. Leave the complicated bits to the specialists, and just use your gut feeling to put what is right on each knob. No-one here is going to get out feeler gauges and mics to check your work out. You will be your own judge and jury.

If it looks right to you, then who are we to judge.


Bogs

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