3D printed parts and wheels

We're a firm believer in the additive manufacturing systems (3D printing) we have available today. Not only for speeding up model prototyping. but allowing us and people like us to manufacture small batches of products in super high detail. 

We've added some tips here for people not familiar with 3D printed parts and their properties. 

The Stratos range of wheels.

Project Stratos 3D printed RC car wheels

These 42 and 52mm wheels are a homage to the infamous Campagnolo 'Coffin-Spoke' Style wheel that enthusiasts automatically link the the Lancia Stratos HF.

Standard Tamiya M tyre fitment so you can choose from many looks and tyres for you build. 

Being resin printed, not injection moulded can give concerns about durability. Yes, they are fabulous show wheels, they look great. Yes they can be used.  YES, they will break if you crash them into immovable objects ay high speeds, (Injection moulded wheels do too) So, don't be afraid to use them, just watch the kerbs :) 

How strong are these wheels?

From tests, they're pretty strong. They will shatter on impact with hard immovable object though. Tests have shown they do run well and are useable when driven carefully. If your model is to sit on a shelf, no issue at all of course. :) 

Surface finish?

Some very light surface sanding before painting is recommended. Typically a 800 - 1200 grit paper is good to clean up the surface. Resin can be sanded very easily.
Painting, classic automotive rattle-can primers and paints work well on resin, alternatively Tamiya TS paints have been tested with good results too. From what we have seen, a white primer worked nicer on these wheels if you're painting them yellow.
Always wash the wheels before painting, as you would before painting a polycarbonate body shell. It's recommended to use toothbrush, warm water and a mild detergent. It's a good plan to do this process twice, gently rubbing the part with the brush, rinse and repeat.  Drying is also critical. Let the part dry completely before applying primer and paint. 
Don't forget to add the details with a fine brush after, wheel nuts, valve stems. A good modelling acrylic paint is perfect for this.