MicroSol


MicroSol started life as a micro RC car

While wandering though Big Lots one day I happened on a shelf of micro RC cars. The price was right $6.99 and I picked one up to play with. Seeing this fast little car made me think of the ChiBots solaroller contest coming up. So I set out to hack this little car into a solaroller.

General Design Thoughts

I really wanted to keep the car looking just as it came from the store. After an initial disassembly, isn't that always the first thing you do with a new toy, I thought I could fit everything in.

 

The Hood Up

With the top up you can see how everything is packed into the original car.The motor looks like a pager motor with a set of gears on the shaft. One small circuit board holds all the electronics.

It all had to come out.

 

All the Parts Are Out

With a little work all the parts were out to work on. The front wheels are steerable in to original, something that would have to be changed for the Solaroller. The little battery is a 1/3 AAA nicad cell that puts out 1.2V. This was a good sign as it meant the motor was designed to run on lower voltages.

Apart

Everything came out without much trouble. Putting the front wheels back in with out the steering linkage was a little tricky. A little epoxy fixed them in place.

Solar Engine

I free-formed a Miller Solar Engine. It took some folding and planning. Everything had to fit in a cube about 5/8" in size. The capacitor is a .1 mf memory backup.

 

All Tucked In

In the end it all tucked into the small body, a nice neat little package.

Solar Cell Added

The SC2433 solar cell sits on two brass wires that plug into one half of a dip socket glued to the chasse of the car. this allows the cell to be removed with the body.

I also added shorting bars that plug into a similar socket under the car.

Re-Packaged

All safe and sound back in his package ready for the fall ChiBots contests.

 


 If you have any questions or comments please email me at: mdavey@new.rr.com