White Paper Discuss: 2 speed, Shift-on-the-fly TechnoKat Gearbox

[Ryan Foley]

Wow, awesome transmission. Hopefully if we find a good machine shop we can try it out.

::adds this to my collection of Team 45 tranny white papers (this is number 4)::

[Guilherme]

I was wondering if you could share any kind of CAD format of this file, because we have metric units here in Brazil, and we´ve to see all details of the gears because we don´t have them available to buy here.

Thanks.

[Matthew_H]

Originally Posted by Joe

I was wondering if you could share any kind of CAD format of this file, because we have metric units here in Brazil, and we´ve to see all details of the gears because we don´t have them available to buy here.

Thanks.

I had one of my drafting students put this desgin into CAD. It should show you the basics of the design. I have not fully checked it out but if you would like it send me an email and I will attach it.

Matthew


Ubergeeks

[Guilherme]

Thank you all. Andy already sent me the .step file, it should be enough.

Three more questions:

Andy, I was at our high school, but now I´m at home and I don´t have your email adress. May you send me the Unigraphics files? We´re trying to get a sponsorship from a company that has CNC´s, so we could build the parts with these files.

I´ve spoken to this company, and they said that in order to build gears, the should have special tools engaged in their CNC´s. Could ou specify the tools needed to build ALL gears? The models of their CNC´s are: feeler model FV 1100, dyna Myte model 4500

Whats the average time that this gearbox takes to be built?

[Cory]

When we were asking around at local machine shops, they said it would be around 40 hours of work. That does seem possible, albeit a bit steep. It really depends what's being CNC'ed and what needs to be done manually.

Cory

[Matt Reiland]

40 Hours seems possible, however do yourself a favor and make extra parts. Lots of the machining time is the setup, once the CNC portion is programmed, making an extra few is much easier and you may need it later.