CIM 1:1

[Cem8301]

Is there a simple way to hook up a CIM motor to a wheel 1:1? We want to run a simple test.. and don't have onsite access to a CNC machine.

[DavidGitz]

For this application you are really looking for a shaft adapter to go from the CIM motor output shaft to the correct diameter for your wheel. As a very basic prototyping tool we installed a CIM Motor to a Banebots Planetary gearbox with the appropriate gears removed to give an output shaft diameter of .5" and gear ratio of 1:1. However, this can be somewhat complicated to do and we had it laying around in our work area so it was an easy prototyping tool. I would suggest you go with something like a Helical Beam Shaft Coupler from Mcmaster-Carr, http://www.mcmaster.com/#standard-sh...plings/=fw06xw

But that is just a suggestion and I'm sure some other people will have better options and/or suggestions.

[Cuog]

You can make a quick coupler if you have access to a manual lathe and drill press. This makes a good first project for lathe if you're looking to learn.

[JamesCH95]

+1 to the McMaster Shaft Coupler. Next day shipping FTW.

[silverD]

The 8mm AndyMark hub might do the trick with a locking collar.
hub

[JamesCH95]

Originally Posted by silverD

The 8mm AndyMark hub might do the trick with a locking collar.
hub

"Out of Stock"

[hobbes20xxx]

Easiest way to grab a toughbox and modify the gears in it, you can get it close, about 1:2 just by swapping gears around for testing...

[Madison]

Obviously, this is not ideal, but in a pinch you could couple http://www.andymark.com/product-p/am-0588.htm
with
http://www.andymark.com/product-p/am-0096.htm

[theprgramerdude]

AM 8mm shaft adapters would be a good bet, They'll allow you to hook up the CIM to standard 1/2" chain/belt drives for powering the wheel, or to hook straight into a hub to power the wheel.

[Al Skierkiewicz]

Carolyn,
The CIM is notorious for having bearings that cannot stand a side load. Whatever prototyping you do, if you add side load (i.e. use the wheel on the floor or something else that pushes on the side of the output shaft, be prepared for damage. There also will be very little torque available but a very high speed.

[Ether]

Originally Posted by Cem8301

Is there a simple way to hook up a CIM motor to a wheel 1:1? We want to run a simple test.. and don't have onsite access to a CNC machine.

Would this work?

Go to your local auto parts place. Buy a piece of tubing that fits snugly over the wheel axle, and a piece that fits snugly over the CIM's output shaft. Buy a male-male adapter to connect the two different sizes of tubing together. Make the tubing as short as possible, and mount the CIM so it is concentric and coaxial with the wheel axle. The wheel must be separately supported.

[JamesCH95]

Originally Posted by Ether

Would this work?

Go to your local auto parts place. Buy a piece of tubing that fits snugly over the wheel axle, and a piece that fits snugly over the CIM's output shaft. Buy a male-male adapter to connect the two different sizes of tubing together. Make the tubing as short as possible, and mount the CIM so it is concentric and coaxial with the wheel axle. The wheel must be separately supported.

This may work, my team has done something similar to connect shaft encoders.

[roystur44]

We drilled a .313 hole in one end of a .500 " dia axle and used a band saw to cut a slice through the middle of the shaft. Then we took a shaft collar and tighten the set screw to pinch the .500 dia axle onto the CIM axle.

[Ether]

Originally Posted by roystur44

We drilled a .313 hole in one end of a .500 " dia axle and used a band saw to cut a slice through the middle of the shaft. Then we took a shaft collar and tighten the set screw to pinch the .500 dia axle onto the CIM axle.

How are you supporting the CIM body. What is supporting the wheel.

[roystur44]

We used a .500 hex rod for the axle of our shooter. One one end we turned the end down for a .500 round bearing and cut a groove for a snap ring. On the other end we used a .500 hexed bearing so we could push the rod through the hexed bearing and add a retaining ring on the round end. The CIM is held in place by two rectangular pieces of sheet metal with the CIM mounting holes one one piece and a clearance hole on the other. There are 4 PEM standoffs that hold the plates together. Drilling the hole in the hex shaft is a easy way to attache the CIM