Featured: Trampa Holypro 35 17ply | E-TOXX Chain drive | Dual SK3 - 6374-192kv | 8S | Dual Hobby-Wing Max 6 ESC’s | Suquo Systems Suq1 Bodykit
I want to start off by saying that I have been on this forum for a long time and have been following many of you on your amazing builds! I have learned so much about building my own board. I want to say a massive thanks to Jenso @Nowind from E-TOXX for getting me hooked on EMTBs, and of course to @trampa Trampa for making such an awesome product!
After finally biting the bullet and getting myself a Holypro I knew that I wanted to do something special to my board but was not sure where to start. I knew that I was the kind of rider that wanted to get maximum range out of my board as opposed to focusing on going fast. I started thinking about race cars particularly Le-Mans and Formula 1 and spent some time learning CFD using Simscale. After allot of time I started designing a front wing with the hopes of generating maximum downforce at low speeds. Now I knew that if I was going to get some kind of performance gain it would be very minimal given that most of the drag comes from the rider depending on height and weight but I decided to give it a shot anyway.
I have not had that much time lately to test out my design properly due to the fact that I am a new dad . I am looking to see if there are any Trampa EMTB owners out there who might be interested in doing some testing. Have in mind you would need a 3D printer with a minimal build volume of (X) 297 x (Y) 210 x (Z) 200 mm. I would be happy to give you the STL files if you think you could do some serious testing to see if you get any performance gain and if you promise to not share my files with others. If you are interested please drop me an email [email protected].
Early Development Pictures
Here are some early pictures of the development process;Witbox2 printer.
First fitting of the wheel. Perfect fit! The ground clearance was about 5cm. Of course this is not something you want to ride off road unless you want to go flying.
Fitting the first prototype of the front wing.
Temporary mounting Bracket roughly cut out in wood for the front nose.
Prototype 1 (Will give you these files for free and you can share these if you guys want, no CFD in the design.)
During our first testing session. We had a little bit of vibration because we were using 3D printed truck mounts. Was a bit dangerous but was a huge thrill for me !
Fitting of CFD designed front wing.
Designed a Diffuser but its more for looks. Since the deck is arched the airflow is not optimal to get any downforce.
Analysis of Parts
CFD analysis of cross section of front wing at 40km/h