12-23-2004, 05:58 PM
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I KNOW NOTHING!!!
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Join Date: Aug 2002
Location: southeast, michigan
Posts: 441
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12-25-2004, 02:00 AM
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TinyRC Pro
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Join Date: Dec 2003
Location: Singapore
Posts: 69
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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.
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12-25-2004, 06:06 AM
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I KNOW NOTHING!!!
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Join Date: Aug 2002
Location: southeast, michigan
Posts: 441
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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.
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12-25-2004, 10:04 AM
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TinyRC Pro
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Join Date: Dec 2003
Location: Singapore
Posts: 69
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Wow, I'm impressed. But i can say for sure if it would work out as expected.
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12-25-2004, 03:48 PM
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TinyRC Pro
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Join Date: Oct 2004
Location: Va
Posts: 45
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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.
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12-25-2004, 04:10 PM
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I really should change my title...
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Join Date: Nov 2003
Location: somewhere in mississippi
Posts: 255
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what he's workin on seems like the front axle out of a ttt. what machine did you use to make it?
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12-25-2004, 11:26 PM
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I KNOW NOTHING!!!
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Join Date: Aug 2002
Location: southeast, michigan
Posts: 441
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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)
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12-26-2004, 11:48 AM
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I really should change my title...
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Join Date: Nov 2003
Location: somewhere in mississippi
Posts: 255
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can you give us a link to your machine? and how much did you pay for it?
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12-28-2004, 12:47 AM
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X-mod Innovator
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Join Date: Dec 2003
Location: Maryland
Posts: 82
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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.
__________________
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++ Project X-mod 2006 ++
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X-mod EVO with CVT tranny!
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12-28-2004, 07:07 PM
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TinyRC Pro
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Join Date: Oct 2004
Location: Va
Posts: 45
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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.
Last edited by Capt.ArD; 12-28-2004 at 07:11 PM.
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04-28-2005, 01:25 AM
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X-mod Innovator
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Join Date: Dec 2003
Location: Maryland
Posts: 82
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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.
__________________
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++ Project X-mod 2006 ++
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X-mod EVO with CVT tranny!
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04-28-2005, 08:27 PM
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I really should change my title...
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Join Date: Nov 2003
Location: somewhere in mississippi
Posts: 255
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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.
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04-29-2005, 09:23 AM
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TinyRC Pro
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Join Date: Oct 2004
Location: Va
Posts: 45
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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.
__________________
skyline, black
Spinbrush motor with capacitor mod, 10-tooth pinion, blue spings, 3.0 tie rod, lego tires, AWD. Plastic driveshaft.
rally!
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05-01-2005, 06:42 PM
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TinyRC Pro
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Join Date: Nov 2003
Location: near cedar rapids iowa
Posts: 24
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Here is a idea for a tranny using yo-yo clutches. A 12 year old came up with this... pretty ingenious
2 Speed Tranny
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05-18-2005, 08:31 PM
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TinyRC Pro
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Join Date: May 2005
Posts: 22
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the link doesnt work im not redistered threre.
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