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SimsBoarder
05-31-2002, 09:52 PM
Is polycarbonate any good? Is it strong, durible, easliy machined? I was going to use it because it is cheap and for a pan car and I don't think I will need anything very strong since im not going offroad.

Nutter
06-01-2002, 10:16 AM
Polycarbonate is what bodies are made of (otherwise known as Lexan) - it's *way* too flexable to use as a chassis material.


-Nutter

SimsBoarder
06-01-2002, 12:06 PM
It wouldn't be that flexible if I got it at 3.0 mm lexan is like .0000009 mm or so

Speedtester
06-01-2002, 12:49 PM
Originally posted by SimsBoarder
It wouldn't be that flexible if I got it at 3.0 mm lexan is like .0000009 mm or so

The Rugged offroad bodies are .040" I believe, most others
are .020-.030", I also think Lexan will be to flimsy.

GTman
06-01-2002, 02:21 PM
I'm a machinist and must say that 3mm lexan( about 1/8") isn't very rigid. 3/16 or maybe even 1/4 would be needed to make a rigid chassis like what you'd want for a pan car. then you'd have weight problems. if you wanted to use the 3mm, I'd glue 1/4" strips of lexan on it to make it stronger. good luck.

SimsBoarder
06-01-2002, 03:06 PM
well what about polypropolene or is there any other cheap plastics? (Key word cheap)

Mason Copeland
06-01-2002, 03:24 PM
Not realy plastic but how 'bout fiberglass?

SimsBoarder
06-01-2002, 05:04 PM
Fiberglass isn't cheap At least i think is isn't

SimsBoarder
06-01-2002, 05:16 PM
What about acrylic? Would acrylic be anygood? It is cheap, but is it durable?

Nitro Newbie
06-01-2002, 05:19 PM
dangit !

Nitro Newbie
06-01-2002, 05:21 PM
plexi glass maybe or saftey glass?

Nutter
06-01-2002, 05:26 PM
lol @ glass chassis.. I can just see a pan car hitting the boards and suddenly the chassis explodes into thousands of glass shards, hehehe :D (even safety glass shatters.. really well at that, I must say :p)


-Nutter

Speedtester
06-01-2002, 08:14 PM
Originally posted by Nutter
lol @ glass chassis.. I can just see a pan car hitting the boards and suddenly the chassis explodes into thousands of glass shards, hehehe :D (even safety glass shatters.. really well at that, I must say :p)


-Nutter

Yea but you'd have to admit that walking over to a car and seeing 1000's of little safty glass squares wouls be pretty cool.

Nutter
06-02-2002, 09:58 AM
yep :p

It'd be like:
http://www.virtuallysane.com/forumstuff/emoticons/bigeek.gif


-Nutter

SimsBoarder
06-02-2002, 02:11 PM
Well does anyone know of any kind of plastic that is very cheap? And what about acetal

ShinHed
06-02-2002, 02:20 PM
Stop being cheap, and buy a sheet of graphite.;)

Mason Copeland
06-02-2002, 02:28 PM
You can by a 12 in x 8 inch sheet of carbon fiber for like 20 bucks

SimsBoarder
06-02-2002, 05:41 PM
I decided with fiber glass because it is cheap and rigid. It is about $11.00 for a sheet 24x24. It is green my favorite color! lol. Well I think I am also going to get a 12x12 sheet of alluminum.

BAC5.2
06-02-2002, 09:17 PM
that give me an idea. "Project 50Mph glass racer" that'd be nuts.

i can see it now. hours carving out some glass, drilling holes, mounting a .21 nitro motor, getting every thing all set, setting the suspension to hold the chassis at 1cm above the ground with a .5cm stroke, on the lowest profile rubber tires you can find. then you fire it up for the first time, give it some cautious gas, then floor it, and one of two things happens. you hit a small rock and flip it shattering it to bits, ORRR, it goes really slow because it would be heavier than fiberglass and alum. but imagine the momentum, you'd kill a small child if you hit them with that. and what if you did crash.... what would happen, all the electronics would drop to the ground, at 30+mph, and things would just splay out like dropping a box of spare parts.

T9D
06-02-2002, 09:22 PM
The vibration from the motor and/or the torque from the drivetrain would crack/shatter it

ProjectTwin
06-02-2002, 09:55 PM
Kydex...might work.


Jason

InspGadgt
06-03-2002, 03:20 PM
Kydex has much too much flex in it though it wouldn't shatter like many of the other ideas discussed. Fiberglass will work but it's not as rigid as most pan car drivers would like. Which is why practically no one is making a fiberglass kit anymore. Besides, the price of graphite has come down considerably. When I was designing a car years ago it was $50-60 a sheet...now it's $20-30.