cvt sites

variable clutch system

Okay since i cannot disuade you guys i might as well give you some ideas as reference.

Do you know how a clutch system in a 1/10 GP work? you could extend the the rod on the output shaft of the motor and install a clutch with gear on it. so when the desired rpm is reached the clutch engages and kicks up a second set of gear ratio.

Then again i don't know what tools machinery is required.

Well the CVT's show some promise and using two gearsets to change speed will require one gearset to disengage before the second gearset engages to stop the gears from locking up so a simple clutch system is needed.

I think it can be done and I know there are machines out there capable of making the parts because I made these tiny parts on mine.
http://users.ameritech.net/mlcollins/mmt8s.JPG

Wow, I'm impressed. But i can say for sure if it would work out as expected.

nice, slugbugg. what are those parts? im looking forward to what you are doing. i've run out of ideas for my project, the pinions won't mesh well. ill think on it, but i doubt this one'll work.
good luck to yall with the other designs.

what he's workin on seems like the front axle out of a ttt. what machine did you use to make it?

Those parts are what I was working just before the Xmods were released.
It is an axle for a 1/64 scale 4wd/4ws truck that I may start back to work on now since I really have no interest in the Xmods at this time.
I thought I'd let you guy see just how fine some of these machines can cut.I have other pictures but the one with the dime was the best scale reference I have.

The machine is a taig with a maxnc 10cl controller.(nothing special)

can you give us a link to your machine? and how much did you pay for it?

I can make this work if anyone can get me info on where i can one part:

a one way bearing the size of a xmod bearing upgrade

someone get me onfo on where i can get one of these i and will guarnatee you a workable 2 speed tranny for the xmod.

hey, i dunno if this is what you need but
http://www.zxz-bearings.com/onewaybrg.htm
has some small one way transmission bearings.

lookin foreward to seeing this tranny!

EDIT: sorry those bearings are probly too big. ill look more.they say on their homepage that they will make special bearings to your drawings if you give them designs.

CVT IS simple to do
 

A CVT is very simple, very cheap, and will work and you can get 1:1 ratio on speed. And whoever says a tranny wont make a difference because an electric motor makes max torque at 0 rpms...hahaha that is so funny. Waste of a brain really. When you change from the white gear and swap in the blue gear you are getting top speed in turn for torque( Let me add from an electric motor) therefore you are getting different speeds. The tranny makes the best of both worlds and will work.

All you need is:
-a small cone (can be wood ie. from a craft store) that will go on the motore shaft

-a wood cylinder the same diameter as the largest circumference of the cone (to get 1:1) take this wooden cylinder and attack it to the a bevel gear without the round gear attached (dremel it off)


-and a small sturdy rubber band to connect the two together

very simple and affordable.

I will post a pic of the parts and them together to give everyone a nice view.

I love how you criticize our knowledge when you obviously dont have basic sentence comprehension ability. All those who have said that an electric motor produces max torque at zero rpm, mean that an electric motor produces all the torque it will produce on its on at zero rpm.

actually sawhit is right, the motor will never get more torque than it has at 0 rpm. a gas engine has a power curve with a certain range in which it has max torque.
on the other hand, i still belive that a tranny will make a big difference. bleek, i hope you can get that to work, but i think that the rubber band will just sit on the small end of the cone unless there is a mechanism to move either it or the cone. if you can get that to work, more power to ya. put up a pic.

Here is a idea for a tranny using yo-yo clutches. A 12 year old came up with this... pretty ingenious

2 Speed Tranny

the link doesnt work :( im not redistered threre.