anyone? anyone? Bueller?

anyone? anyone? Bueller?

new to me

This is new to me. Can you share some pictures of the various motors?

Two Uses for Pancake Motors

I purchased motors from E-bay for these two projects.

First conversion was a Tyco PanCake Motor conversion. I also replaced the wheels sets with Atheran wheels.

Atheran Wheels

Gear Side of Motor.

Motor Side.

I'm a Critter fan and like Free-Lancing. The Atheran Hustler has been modified using an Atheran SD-40 truck.

A new chassis was made to fit with Pan-Cake motor.

I have more projects in the wings for the use of these motors. There are both 6 volt and 12 volt versions on these motors. The one installed in the Hustler is a 12 volt motor with a top RPM of 6200. Much slower than most motors. They are very smooth and draw very little current making them ideal for DCC or Deltang radio control system.

Bernd

Bill,Bernd should some good

Bill,

Bernd showed some good shots of one of the styles. It's a can motor, single sided. I have one that is about the size shown. I have another one that is slightly bigger.

I also have one that looks like a more typical flat sided can except only single ended shaft. I'll take some pictures of what I have when I get home. 

These are actually high quality motors (so I've been told) 

A google search will show you a few examples as well, but I see more discussion by people who haven't taken a lot of photos.

Motor Type

Just noticed you stated that they are "stepper motors". I don't believe they are. The ones I have are straight DC.

Bernd

I'll be honest, I was told

I'll be honest, I was told they were steppers. I can't say as I know for a fact they are. Since I saw it stated, I commited the sin of repeating it. 

Motors

I have puked apart old CD drives and there are two motors. Ones is a four wire stepper used for precise control. Four wire. Two phases last I knew. Google pc stepper motor.

The other is for opening and closing the drive and is a standard DC motor.

Generally, the can motors measure 28mm X 11.5 mm X 15.8 mm with a shaft that measures 1.5 mm O.D. and is 9.5 mm long. NWSL has worms that fit the shaft.

Rich

Thanks Lexon. 

Thanks Lexon. 

I updated the title to be

I updated the title to be more accurate. 

Attached are some motors I recently pulled. 2 similar to the design already shown. one that looks like a more typical can form factor, but only single ended. 

One question I had was if there was an easy way to attach a fly wheel to one of these. The shafts are relatively short, so presumably an attached flywheel would have to have an additional shaft extending from it. 

Thought...

A machine shop should be able to measure the shaft and drill a press fit hole in a flywheel.   They might also turn a piece of brass to size for your application.  They might also produce a shaft on the other side of the flywheel to do some work.  It might also help if you had a spare part flywheel that they would only have to drill.  A good press fit is preferable; a little CA might be necessary to complete the job.  Balancing the flywheel might also be a consideration.

Trick will be to find a good machine shop or a hobbyist that will do the work.

Nick

Flywheel

Must be confirmed, but I believe Atlas flywheel, Kato flywheel and even Athearn flywheel are available as separately parts.

Anyway North West Short Line (NWSL) also made flywheel and I'm sure these exist with a 1.5mm bore.

Some of these flywheel ave special "head" to receive a universal joint coupling which could help to join the motor and a gearbox.

Flywheels

The shafts on the motors I have are 2mm (0.0787") in dia. I use a 3/4" (0.7500") dia. brass disk with a 2mm hole. I first used #49 drill (0.0730") and then a 2mm reamer. These tools can be bought from McMaster Carr.

A flywheel gets it's momentum from the diameter. The larger the diameter the more momentum it stores. If you've ever seen a stationary steam engine you'll note that the flywheel is always larger in diameter than it is long. Think of the flywheel as a crowbar. The longer the crowbar the more torque to can apply.

Here's a couple of pics of the flywheel and motor.

Bernd

@ Bernd

As usual, great information!  I think you missed the “point” on 3/4” above though.

Nick

P. S.  Great pictures too.

Fixed

Thank you Nick. Error fixed. That would have been a very small flywheel.  

Bernd

Dumb question, where would I

Dumb question, where would I get Brass discs?

I know you can get Athearn/Atlas/Kato and NWSL Flywheels. In the case of the first 3, they would not have something that is that large a diameter. not sure on NWSL.

Brass disks

Hi Yoho,

I Googled 3/4” brass rod.  Got good results quickly.  Didn’t try brass disks.  Might have to buy the rod and then a hack saw and drill.  The machine shop might still be a good idea unless the nearest one is in Pakistan.

Nick

Search

A Google search on brass discs brought up many vendors. Try to stay away from punched out discs. They have a are not flat.

Bernd

I've used the "can" type tray

I've used the "can" type tray motors for powering HOn3 locomotives.  Actually, some of them are nearly identical to one I bought in a NWSL repowering kit.  Sorry, no photos, but I have one in a MDC shay, another in a kitbashed MDC HOn3 static steam kit, and another I am using for a kitbashed HOn3 2-8-2. All work just fine.