My 1998 Porsche 911 GT1

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Ned
Posts: 315
Joined: Sun 13. Apr 2014 01:02
Location: Sedona, AZ USA

My 1998 Porsche 911 GT1

Post by Ned » Sun 11. Sep 2016 02:58

Here are a few pictures of my 1998 Porsche 911 GT1. The body, wheels, and rear axle are from a Fly slot car I bought on eBay.

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I used 2.5mm x 12mm stainless steel machine screws for front stub axles.

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The body by itself weighs 29 grams. The entire car with the battery weighs 83 grams.

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The front tires were sanded down so that the diameter on the outside is smaller than on the inside. This causes the tires to ride on the inside edges which reduces frontend shimmy.

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I designed the chassis using free 3D modeling software by SpaceClaim called DesignSpark Mechanical. It was printed by Shapeways in NYC using SLS nylon. The frontend of this chassis has 2 degrees of positive toe. Subsequent versions of the chassis have 1 degree of toe in and 2 degrees of negative camber. The negative camber eliminates the need to sand down the outside edges of the tires.

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The body is held to the chassis with 3 magnets.

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Instead of a bumper attached to the chassis frame, I glued a 3 pieces of plastic around the small magnet which is glued to the underside of the hood in front. The screw in the front/center of the upper suspension plate adheres to this magnet. The 3 pieces of plastic around the magnet prevent the screw, and thus the chassis, from sliding forward, left, or right, relative to the body, upon a crash. This chassis with or without the body, exhibits no front end shimmy.

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MagRacer
Posts: 54
Joined: Thu 27. Dec 2012 14:59
Location: Denmark
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Re: My 1998 Porsche 911 GT1

Post by MagRacer » Mon 12. Sep 2016 13:28

Hi Ned,
Nice car :-)
Do you have a video of it on your track?

Ned
Posts: 315
Joined: Sun 13. Apr 2014 01:02
Location: Sedona, AZ USA

Re: My 1998 Porsche 911 GT1

Post by Ned » Mon 12. Sep 2016 18:07

I do not have a video of it. I need to get a tripod so I can shoot video while driving a car. Someday I will.
I'm focused on designing chassis and building cars right now.

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