Even Longer Shaft for Emmett's Automatic Teansmission Model

by zaaphod, published

Even Longer Shaft for Emmett's Automatic Teansmission Model by zaaphod Dec 16, 2012
0 Share
Download This Thing! Customize Order This Printed Tools & Utilities

Thing Info

5005Views 569Downloads Found in Vehicles
Report Thing


I figured out how to get a pin in the 2 halves of the long shaft, and as I was messing with it, it occurred to me, I had room to make it even larger... why on earth would I want to do that you ask? well, it seems my model would be lacking 2 features of an automatic transmission that could be easily included in this model with a longer shaft... those are: Neutral and Park. So with the added length, I can pull the shaft so the driving hex is completely out of the stand thus being able to turn free and also allowing free movement of the annulus, providing a neutral position, then setting a few brakes while in this will provide a Park position. Park works better with my sun gears with 3 brake tabs if you get one brake slightly ahead and the other slightly behind, it will lock up pretty good, while the shaft all the way out allows the drive end to turn free.


Print the longer split shaft and put the 2 halves together, and install.

Note that N and P designations on the shaft are not the position they should be at, but I did not want to put lettering on the hex drive, so I put them where they fit. the assembled photo shows the transmission in neutral, you must pull the shaft so the hex is completely out of the stand.

More from Vehicles

view more

Thing Info

5005Views 569Downloads Found in Vehicles
Report Thing

Liked By

View All


Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

All Apps

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Nice, of course in the original, you can put it in neutral by disengaging all the brakes, and in park by engaging more than one. Still, your method is closer to how a real automatic would do it.

Yes, I thought of that, but engaging more than one brake would also lock the input shaft unless you can get it disengaged somehow.. so this is how I thought I could do it... I wish I could print the shaft in one piece, it's not quite as solid as I would like, but it does seem to function well.    I must admit the most fun with this model is checking out all the gear ratios... park and neutral are very boring LOL