I think I got the rear arms for the new car totally figured out. I've been messing around with it and I think they are as perfect as my limited CAD skills can get it.

Front view:




Bottom view:




Outside view:



Inside view, outdrive relief:




Rear view:



Rear bottom view:




Ill show pics of the finished arm once I have it printed out. Then I might put the file on Thingiverse, Ill see how it goes.

OK, I've had an epiphany!

So I was planning on CNC cutting all of my pieces then we got a 3D printer at work which lead me to do more research on printers. After a bunch of research I ended up ordering a TEVO Tarantula ($185!!). Not the best printer out there by far, but after a bunch of setup and modification (printing your own parts) they work really good. So that's on the way!

This lead me to begin re-thinking the whole design. Since I first started to build the Theory Buggy (pic below) I have wanted to design more organically. By this I mean that I have been limited my machinery and CAD abilities. I have been working on the CAD skills (still pretty bad, but getting better). And the 3D printer should be the last piece to the puzzle.



OK yes I realise that 3D printed parts aren't as strong as manufactured materials. And yes I realise there will be a steep learning curve. But, I want to experiment with carbon filament, specifically nylon carbon fibre. And I really don't care if it doesn't work as long as I had fun doing it!

So, I would appreciate any advice you may have actually printing parts. Materials, temperatures, feed rates etc.


Here is the CAD I have so far, combining what I have already started with what 3D printing can offer. More to come.



Side View, You can really see the aero shaping up in this picture. The rear wing will be mounted to the top of the shock mount and incorporated into it so the shock mounts will aid in creating down force instead of just disturbing airflow. And I am aware that the shocks will disturb airflow.



Top View



Rearish View, The shock towers will be incorporated into the body and act like a rudder or side dam.



I cant wait to start printing and putting this thing together!

I've been messing around with Fusion 360 some more. Here is what I have so far.







As I have said this is a carpet or smooth clay track only car, and my focus is on aero. My idea is to play with the aero and see what works. I have learned a ton already and I am incorporating what i have learned into this car and pushing the boundaries further. If it doesn't work it should at least look cool!