Originally Posted by
OffRoadJunkie
With that type of racing, you don't really need to worry about chassis flex. Chassis flex is a bigger concern when your on high tractions tracks. In your racing, you would never get enough traction to cause your chassis to flex unless it was made of balsa wood. The dirt is too lose and your car is bouncing too much. For a top plate, it will have to be anodized aluminum for strength. For bashing, weight isn't an issue, so they will beef it up with aluminum. If you are racing, weight will be an issue. You can get a piece of carbon fiber and make your own brace. Therefore, you can make it to any design you want. You can find small carbon fiber sheets on Amazon and Ebay. They don't cost that much and you can get it in a variety of thicknesses.
As much as I would like to say that carbon graphite sheets is easy to cut and shape I will be absolutely wrong. With a proper hepa filter vacuum setup like a ProTeam super coach HEPA 10 amp 10 quart I’d feel safe with the thing sucking air through a base of a cutting solution like a dremel mini drill press mounted securely to a bench using carbide grout removal bits will make cutting forms very easy and the carbide grout bits can be plunged as well for pilot holes. These bits make a nice finished edge however are rather expensive for the size of said carbide content.
This kind of set up can be used to cut 3mm thick sheets, or plan on replacing the bit often on thicker stock.
Done enough to know that yeah they were right about the 1/16 grout removal bits they actually last longer than the 1/8 and make finer cuts.