MetalworkingFun Forum › Machining › How-To's v
cutting gears

Thread Modes
cutting gears
dallen Offline
Senior
*****
Posts: 1,827
Threads: 51
Joined: Apr 2012
Location: Oklahoma
#1
07-01-2012, 10:48 PM
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
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.

If life seems normal, your not going fast enough! Tongue
Reply
Thanks given by:
TOM REED Offline
Junior
****
Posts: 266
Threads: 23
Joined: Feb 2012
Location: OLDS, ALBERTA
#2
07-01-2012, 11:02 PM (This post was last modified: 07-02-2012, 06:06 AM by EdK.)
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
Logan 10x26" lathe
SIEG 12x40" lathe
RongFU 45 clone mill
6" import band saw
Baldor Grinder
thousand of tools+tooling pieces 40 yrs of collecting
Reply
Thanks given by:
Mayhem Offline
purveyor of mischief
******
Posts: 4,683
Threads: 93
Joined: Feb 2012
Location: Perth, Australia
#3
07-01-2012, 11:37 PM
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.
Hunting American dentists since 2015.
Reply
Thanks given by:
Mayhem Offline
purveyor of mischief
******
Posts: 4,683
Threads: 93
Joined: Feb 2012
Location: Perth, Australia
The following 1 user Likes Mayhem's post:
oldgoaly (08-26-2013)
#4
07-02-2012, 06:06 AM (This post was last modified: 07-02-2012, 06:08 AM by Mayhem.)
Hi David - Give Metal Shop Calculator a go.

Here is a screen shot of the gear page from the version I am running:

   

It also has some other good features which I find useful.
Hunting American dentists since 2015.
Reply
Thanks given by:
EdK Offline
Whipping Boy
*******
Posts: 8,888
Threads: 320
Joined: Feb 2012
Location: Arizona/Minnesota
The following 1 user Likes EdK's post:
oldgoaly (08-26-2013)
#5
07-02-2012, 06:18 AM
Here's a calculator for gear stuff. It's at the bottom of the web page.

http://gizmology.net/gears.htm

Ed
Reply
Thanks given by: Mayhem
Bill Gruby
Unregistered
 
The following 1 user Likes Bill Gruby's post:
oldgoaly (08-26-2013)
#6
07-02-2012, 06:50 AM
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" Big Grin
Reply
Thanks given by:
dallen Offline
Senior
*****
Posts: 1,827
Threads: 51
Joined: Apr 2012
Location: Oklahoma
#7
07-02-2012, 08:00 AM (This post was last modified: 07-02-2012, 09:07 AM by dallen.)
Thanks guy's ya'll just saved me from doing this for another week BashBashBash

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
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.

If life seems normal, your not going fast enough! Tongue
Reply
Thanks given by:
Highpower Offline
JAFO
******
Posts: 4,493
Threads: 187
Joined: Feb 2012
Location: Missouri, USA
#8
07-02-2012, 08:11 AM
Cool. What type of cutter(s) will you be using D? Cool
Willie
Reply
Thanks given by:
krv3000 Offline
Senior
*****
Posts: 1,520
Threads: 157
Joined: Feb 2012
Location: uk
#9
07-02-2012, 08:32 AM
ooo theirs a project
krv3000, proud to be a member of MetalworkingFun Forum since Feb 2012.
Reply
Thanks given by:
dallen Offline
Senior
*****
Posts: 1,827
Threads: 51
Joined: Apr 2012
Location: Oklahoma
#10
07-02-2012, 09:10 AM
(07-02-2012, 08:11 AM)Highpower Wrote: Cool. What type of cutter(s) will you be using D? Cool


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
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.

If life seems normal, your not going fast enough! Tongue
Reply
Thanks given by:




Users browsing this thread: 3 Guest(s)