ksp420 Lego Machine - Variable Transmission

A basic variable transmission designed from Legos. The input on the right is constant (I have a Lego motor on it) and the ouput on the left varies. The input and output can be reversed as they are simmetrical. The sliding carriage in the center was a little tricky but it works flawlessly after working out a few bugs.
"420 all day, all night"

Category:

Science & Technology

Tags:

• ksp420
• Lego
• Legos
• Variable-Transmission
• 420

[bachaddict]

this is quite clever. I have made a transmission based on the Dixon ZTR cone drive, used two plastic gears instead of cones and two small rubber wheels instead of dishes. here is a photo of the real thing:

useddixonztrsDOTcom/apps/photo­s/photo?photoid=75400765

[ksp420]

@bachaddict I can't seem to bring up the pic (and yes I changed the DOT). I actually made a few dual cone designs with rubber bands prior to this. They worked fairly well, but they were a bit flimsy. I do wish to see your picture when you can find a workable link. Keep tinkering!

[sebastianblevdet]

dude that is so tech=D u be nerd=P no, just kidding x3 the machine is cool=D

[ksp420]

@sebastianblevdet Actually I have broken the nerd sterotype by marrying a hot Brazilian woman. But thanks bro. 420

[makmegs]

1. Are you an engineer of some sort(Mechanical, robotics?)

2. Have you connect the rc engine to it yet :P

3. Try building one with a clutch (if thats even possible) :P

4. This is not really a question but really good video dude! Glad you shared it with the rest of us for :D

[halakinini76]

Has a lego hit you in the face from it spinning to fast?

[hawki52]

@NOLIMIT69NOLIMIT2000 it is running the same direction

[sciman001]

sweet!!! very clever.

[bachaddict]

@ksp420 sorry about that, don't know what happened. go to their home page, then click on "Dixon ZTR Photo Gallery" then "Dixon ZTR 4421 Project Photos"

that should bring up photos of the inside.

will look at putting photos of LEGO model on flickr or similar

[ksp420]

@ShokaLion That's a much better explanation than mine. Thank you.

[ksp420]

@hyperundead Forget physics class. I designed this originally before I was even a teenager. It is much like a transmission. And is works because of my magical powers.

[ksp420]

@makmegs 1) I am actually a construction blueprint estimator (I do VERY accurate takeoffs). I have A BS in Electronic Engineering and I have been writing computer software since age 12. Mechanical engineering has been a hobby that ties those two things to the real world. 2) See SergeTTL's comment. This is a proof of concept, an RC motor would make the wheels explode ( = 3) I have dismantled it already, but a clutch would be quite possible and necessary (I think). 4) Thanks! My 1st video.