I do not remember that; did you try to look around using the "search" option on this page?
What exactly are you looking for? I collected some calculations/standards/books/magazine articles; I might have what you need.
Keep safe and healthy, fellow engineers!

Yes, I have spent some time looking for it with no success. But today I finally recalled his last name and was able to find that post. It's here: https://www.eng-tips.com/viewthread.cfm?qid=383851

I surprisingly find more and more people are no longer with us:
Occupant
gearcutter
israelkk

@Spigor

While it's not what you are looking for may be alternative
https://khkgears.net/new/gear_calculator.html

here is an other one.
word of caution not tested
maybe you all can help with that
http://www.dakeng.com/spurgear.html

Here is a Int & ext Spur gear program
http://www.forestmoon.com/Software/GearDXF/

use with caution

Thanks mfgenggear!
I really enjoyed these sites. I've seen a 66 MHz precessor requirement, pages last updated in 2015, DOS programs, DXF version 12. It was a nice experience, bringing back memories from the past. The spreadsheet (or, as it turns out, a little exe file) was just one of the things I remembered about that post I was looking for.

It's interesting to see a program completely ignoring the trochoid section of the tooth, simply replacing it with a straight line, which may lead to serious interference related problems, making that gear profile unusable. The program is online for so many years and no one ever complained?

Lately I found several web pages for designing the gears. One of them is

https://www.emachineshop.com/gear-design-software/

I did not check for accuracy of their calculations, use it carefully.
I think that eventually we could create a list of similar services/apps with our own notes about them.

This one looks interesting too.

http://www.me-bac.com/index.php?task=gear

And one more:

http://www.hessmer.org/gears/InvoluteSpurGearBuild...

Thanks gearguru for those interesting links!

Thanks for sharing gearguru

spigor,

One website was www.emip.de but it is no longer active. The over pin measurement .exe file is attached. Mine still seems to work OK.

There are also some useful online calculators here: http://www.zakgear.com/Calculators.html

Hope that helps.

• https://files.engineering.com/getfile.aspx?folder=73478289-d0a3-48ac-a0f2-7

tbuelna
Many thanks!!!