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+--- Thread: cutting gears (/thread-585.html)
cutting gears - dallen - 07-01-2012
I am wanting to cut some gears, now this subject is just full of math which I lack a bunch of.
What I am hoping is that someone has or knows a formlua that I can use to calculate the outside diameter of gear blanks.
the reason for this madness is that I am missing some of the change gears for my lathe an I figure that I may as well learn how to cut them so that I can make what I need, but for the life of me can't seem to figure out how to calculate the blank size.
thanks in advance
David
RE: cutting gears - TOM REED - 07-01-2012
check my recent pos for valuable information site thru that site you will be able to find the information you desire mathematical tables etc tom
http://www.metalworkingfun.com/showthread.php?tid=543
RE: cutting gears - Mayhem - 07-01-2012
I don't have the experience to help but will be watching with interest.
I recall seeing an online calculator that did numerous things with regards to gears. I'll check when I'm home to see if I book marked it.
RE: cutting gears - Mayhem - 07-02-2012
Hi David - Give Metal Shop Calculator a go.
Here is a screen shot of the gear page from the version I am running:
[attachment=2147]
It also has some other good features which I find useful.
RE: cutting gears - EdK - 07-02-2012
Here's a calculator for gear stuff. It's at the bottom of the web page.
http://gizmology.net/gears.htm
Ed
RE: cutting gears - Bill Gruby - 07-02-2012
If you wish to do it the long way ( good to know) here are the formulas.
http://shopswarf.orconhosting.net.nz/spur.html
"Billy G"
RE: cutting gears - dallen - 07-02-2012
Thanks guy's ya'll just saved me from doing this for another week
I get the mill set back up with the indexer on it I'll take some pictures post em in here although it may be a few days, need to get/make and arbor to put the blanks onto.
DAllen
RE: cutting gears - Highpower - 07-02-2012
Cool. What type of cutter(s) will you be using D?
RE: cutting gears - krv3000 - 07-02-2012
ooo theirs a project
RE: cutting gears - dallen - 07-02-2012
(07-02-2012, 08:11 AM)Highpower Wrote: Cool. What type of cutter(s) will you be using D?
cheap chinese import involute cutters cause they won't completely empty the wallet. and I should be able to cut a gear in two passes one roughing and a finish pass of a couple thousands
DA