The geometry of the dust covers is a little more complicated. I am afraid to miss some key spots.
With my old 3D printer I made the covers and will check the fitment in the coming days.

Positive news from all my part manufacturers:
All parts are already shipped and on their way to my home

The body posts arrived today (even though I ordered them later than the suspension parts):

awesome stuff can’t wait for the finished pictures

The time of CAD pictures is finally over. I received all prototype parts and started building and assembling today.







Up to now everything fits better than expected. Just the Awesomatix ballcups for the arm attachment made trouble. Three of five cups fit perfectly. The other two make the arm getting stuck. Oh and one cup fell apart on its first mounting...
I overcame the problem and finished two thirds of the rear suspension and began with the front, too.

This will be one of my favourite post if I should ever look back on this project in the future.

The car transformed into something beautiful. Chassis and custom parts just fit together nicely. Somehow both compliment each other and make their counterpart look more technical, more functional, more quality. At least in my eyes. The proportions of the tub match in harmony with the front and rear end. I am very happy:












The chassis looks quite complete already (except for the shocks of course), but there is still a lot of detail work to do.
I decided to minimize the orange colour and to invest in more blue gold. The screws and nuts will be exchanged soon.

Because it is forbidden in the class and series I drive.
... and the blue is not matching the Tamiya blue.

No no, it is simple: I draw 2.5mm core holes for the parts in CAD. The then printed parts come from Shapeways with core holes. At home I use a simple M3 buttonhead screw to make the thread. I just screw in the M3 screw. This way the thread gets stronger, because the plastic gets compressed and a stronger thread is formed.
My advise is to never tap a thread in plastic.

@Nerobro: That is very kind, but save your money. For me this method works fine and the threads didn‘t fail up to now...

@1/8 IC fan: Shapeways prints my parts with Nylon powder: https://www.shapeways.com/materials/versatile-plastic
The sinter process doesn‘t create a density like injection moulding. So forming the thread with a screw is a possible way. I also just screw the threads on all my ballcups without tapping. Delrin is maybe too strong to do it like that...