[Mr Modifier]

There is a distinct advantage with 3D printing IF you have a printer and can get to grips with a design package.

The cost of printing a chassis is literally pennies so any design mistakes can be easily remedied.

Once you have a design you can easily change the wheelbase and track and engine mount if you take a modular approach to your design.

The other day I decided I wanted to make my front axle mount height adjustable and about 30 minutes later it was designed and digitally welded  to my chassis. 50 minutes after that the chassis came off the printer.

A chassis can use between 5g and 10g of material and the material costs GBP16 per kilo.  That makes the chassis between GBP0.08 and 0.16 and a penny or two for power.  The printer costs GBP150 but that spreads pretty thin over the hundreds of thousands of things it will print.

I get the appeal of brass chassis but as I run exclusively SSD digital any metal close to the rails is a potential race killer (shorts either corrupt SSD data packets or safe mode and that means race over).