Making a shell for a RC car.


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Aquaman
Aquaman
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Hi all,

First of all I hope this is the right section to post my query and I can get some expert help and guidance.

I plan to make my own rc car shell as the one on the market for my car is very brittle and snaps at any point of contact.

The requirements of the shell I make are that it has to be strong, doesn't crack/snap upon impacts, must be flexible and long lasting. The reason for these requirements are because the car will be flipping over and landing on it's shell, rolling over multiple times and having impact on the shell from various angles etc..., the car weighs around 15-20kg I believe.

I don't plan to make a mould but rather use the inside of the shell as a mould as I figured it'll save me time, money and it wouldn't look much different from being slightly smaller.

So far I have thought of putting down 1 layer of Black, 200g Diolen Fabric in a 2/2 Twill weave for aesthetics. Following that with 1 layer of  Aramid 2/2 Twill Weave 300g Fabric Cloth. This will be followed by 2 or 3 layers of 300g Chopped Strand Mat (fibreglass) then maybe another layer of 200g Diolen Fabric in a 2/2.

What do you guys think of this plan, will it be suitable for my needs? Will it become too thick? Is it possible to bond all those fabrics together without them coming apart easily? Any suggestions and advice will be greatly appreciated.

Also to note I won't be using a vacuum or anything just laying everything down by hand and using a brush to spread any resin.

What else would I require for the job in terms of the type of resin that can be used on all the materials I will be using and also any sort of coating that will go on my mould (inside of rc car shell).

Thanks in advance.
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baja_patient
baja_patient
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Hey man, what you wish to attempt is a huge undertaking, trust me. I made a shell for my bajas, took me many attempts and a lot of materials to get it looking right. You won't be able to wet lay it i'm sorry to say. Especially if you don't wanna make a mould. Mine is still not perfect, but the best part i made was the nose. All made with infusion with moulds from an original shell.

Using twaron would be good, mine are all carbon, n carbon glass. I will be trying a hybrid fabric too in future. Prior to these I had little to no composites knowlwdge, feel free to ask about anything you need.


Sorry about the order of the pics! but as you can see, even with the mould, the first attempt was a major failure to say the least. High compaction was needed. But as I progressed my parts got better and better. Final product painted with silver auto paint and 2k clear. I wanted to do this, because I love making stuff, but it was waaay more expensive than just buying one.

Cheers!
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http://www.talkcomposites.com/Uploads/Images/a2af102c-fe35-4c65-bbc9-f68a.jpg
http://www.talkcomposites.com/Uploads/Images/0ca2c46d-d42c-447b-a4f7-c036.jpghttp://www.talkcomposites.com/Uploads/Images/92be589a-12ff-4e14-8ad0-6bd7.jpg
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