View Full Version : Sideways


mowyang
03-22-2009, 02:55 AM
Back in the early 70's, I sketched out an AFX-based car I wanted to build. This was in the so-called "brass wars" days, before the magnatraction craze hit. Full brass pans were the thing, so I thought it made sense to move chassis weight around outrigger-like.

Never did build the car, but a few years back I made a Fray-tjet version:

http://home.comcast.net/~mowyang/pwpimages/sw4.jpghttp://home.comcast.net/~mowyang/pwpimages/sw5.jpg

Runs OK, but not as well as a regular Fray car. But that's ok. Saved me from trying to sneak it through Fray tech!
:rolleyes:

Mark

Bill Hall
03-22-2009, 03:19 AM
Too cool Mark!

Ya cant tease us like that ...knock it apart and give us a few more pics...Please!

I'd like to see some detail of the re-indexed brushes and what appears to be cups.

bobhch
03-22-2009, 11:50 AM
That is mowyang-tabulous!!!! What an idea :cool:

Bob

joez870
03-22-2009, 01:23 PM
Oh, this chassis is just too cool! :thumbsup:
Like Bill said, more pics please!

win43
03-22-2009, 05:01 PM
"......and now for something completely different......." Cool idea :)

NTxSlotCars
03-22-2009, 05:13 PM
Man, this is a great idea! Can you imagine a cobalt magnatraction with a little bit different pickup set up? I mean, something similar to the LL M chassis, but with a pancake motor?

cool beans man

AfxToo
03-23-2009, 08:44 AM
Very interesting indeed. I cannot envision a reason why it would improve performance. I would imagine that with sufficiently strong magnets you would get some "interesting" behavior when the car slid out and you were left with only one magnet over a rail. If the shoes maintained contact the car would probably remain "hung out" all the way around the track.

This design does demonstrate ways of reducing the complexity of the chassis electricals substantially.

NTxSlotCars
03-24-2009, 07:14 PM
Still a great idea. I really like the change in design.

22tall
03-25-2009, 12:51 PM
Very inventive. Mark, you should post your process for slamming chassis sometime.

videojimmy
03-25-2009, 06:17 PM
you so crazy mang!

mowyang
03-27-2009, 09:43 PM
Too cool Mark!

Ya cant tease us like that ...knock it apart and give us a few more pics...Please!

I'd like to see some detail of the re-indexed brushes and what appears to be cups.

OK, guys, here ya go!

In these two pictures, you can see how I took a second chassis and arranged it sideways on the other. Taking a trick from my slammed tjets, I ground out the inside of the first chassis to about half its normal thickness, with the exception of a small rectangle surrounding the armature hole and the location of the new brush tubes. That portion remained at the stock thickness. The bottom of a second chassis was smoothed out and thinned to half its normal thickness, and a rectangle was cut out to receive the rectangle from the first chassis. The front and rear ends of the second chassis were lopped off, leaving the pockets which hold the magnets. The two chassis were glued together using JB weld, which seems to be holding well enough. The brush tubes are Super II parts. I soldered a small length of wire to the side of the tubes, then bent them at a right angle so they could be soldered to the pickup hangers. I also trimmed a bit off the bottom of the brush tubes to clear the hangers.

http://home.comcast.net/~mowyang/sideways%20tjet/sw18.jpghttp://home.comcast.net/~mowyang/sideways%20tjet/sw20.jpg

A stock gearplate clamp wasn't going to work, so I made some wire clamps to hold the gearplate in place. They fit into holes drilled in the sides of the chassis. To hold the idler gear, I cut down the sides of the clamp and bent them to fit under the gearplate. I filed small indentations in the bottom of the gearplate give the new mini gear clamp a place to hold onto.

http://home.comcast.net/~mowyang/sideways%20tjet/sw21.jpghttp://home.comcast.net/~mowyang/sideways%20tjet/sw19.jpg

There you have it. Sideways? Maybe twisted is more like it!

Mark