Starting a new build... something...

[ChILd_ReBoRn]

So, after a lot of thinking, I decided my build would go something about this:

https://www.riverlandequipment.com/u...ginal/4660.jpg

I really can't fathom why did they make the track setup the way they did, but, since it will put the motors in the back, it will leave a lot of space up front for electronics, servos and battery.

I have a few questions:

1. How do you calculate chassis size? I made it 33cmx16cm, but when I placed the idler wheels I had as spares... they looked ridiculously small, so I downsized the chassis to 24x10cm. That looks small, but since the tracks are 45mm wide, that would give me an overall width of 190mm which is enough, and with the blade up front, it will be around 30cm long. Since my motors are only 8kg/cm (stall torque) better to keep things in the right size department.

How do you make your cabs? I saw people using styrene, but that's way to brittle. How do you mold plastic? or is there another way I'm not aware of?