Online Knurling Calculator

[PJs]

PJ's
is there a Site? or is it just the chart? I may be having a reeree moment here but wannted to make sure cause the way I read it it allowed you to input data to get computational data back for knurling work Yes?
Thanx either way

Hi Charron63,
The "knurling pages" are on my website were I explain in painful detail how I arrived at these formulas. I used to have the calculator "On Line" for free on the site but Google changed the rules again, so I donated it to HMT to collect a small fee ($5) to support the forum and for all the great work and people here. Here is the link to the Knurl Calculator files and instructions.

I created the Calculator in MS EXCEL but it will open in most spreadsheet programs I believe. Yes, you can input data and it will automatically calculate the diameter needed to get "Good Knurls" with Little Machine Shops knurl tool and wheels and a few others I have measured including a "Metric Wheel Sheet". You can also measure your wheels and count the teeth and enter that data to get automatic values for you.

Hope this helps. ~PJ

[mklotz]

PJ's
is there a Site? or is it just the chart? I may be having a reeree moment here but wannted to make sure cause the way I read it it allowed you to input data to get computational data back for knurling work Yes?
Thanx either way

You don't really need a program if you have a calculator, even better if the calculator is programmable. Way back in post #22 of this thread, I wrote...

There's a knurling diameter calculator on my page (see my sig for URL) but, like PJ, it's a victim of the march of time. It's written to run in DOS so you need to install a DOS emulator to run it. The procedure is described on my page.

Actually, the calculation is quite straightforward and can be done with a calculator. It depends on the fact that the circumference of the workpiece should be an integral multiple of the pitch of the knurl.

Calculate the circular pitch of the knurl (p) by dividing the knurl circumference (pi * diameter) by the number of teeth on the knurl.

Divide the circumference of the workpiece (pi * diameter) by p to obtain a number (n). In general n will not be an integer. Truncate n to an integer.

Calculate the workpiece knurling diameter = n*p/pi

If you save the values of the circular pitch, once calculated, for each knurl, then only the last two steps are needed for each new workpiece.

Note that you must "truncate" n to an integer, not round it. As an example, 3.9 rounded to an integer is 4 but truncated the value is 3.

[Toolmaker51]

PJ's!
A critical wheel in the The Epicyclic Elliptic Think & Do Continuum. (EETaDTC).
Have any clue how much we miss your contributions?

[GUGUSSE]

Hello,
I liked the spreadsheets, but, being French and for occasional use, the wording in English is a barrier to using this tool!
Is there a French version, or if not, is it possible to have the password to be able to change (translate) the indications?
Cordially,
GUGUSSE.