Let's Make Robots!

Rocket car v2

Run fast
AttachmentSize
rocket_car_program.bas231 bytes

This is my second rocket car, designed with Google Sketchup. The image below is additional rendered with Inkscape (also freeware):

All wheels will be ball bearing mounted:

The front fins should increase the surface pressure of the front wheel at higher velocity.

The rocket car will be propelled by four C6-0 model rocket motors, technical data listed below:

Total Impulse: 8.82 newton-seconds

Peak Thrust: 14.09 newtons

Burn Time: 1.86 seconds

Average Thrust: 4.74 newtons

Propellant Mass: 10.8 grams

 

A FlyCamOne eco V2 will be added, pivotable by a micro servo. The camera weighs only 17g. Start/stop, mode and 180°Rec-Flip can be controlled by a servo signal.

Construction work details...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and the finished rocket car:

Due to the bearings the rocket car runs very smoothly. It rolls a few meters on even surface if you give it a love tap.

 


 

2010.9.15

Small update. Mounted the servo for the camera, the battery, launch wires and luster terminal.

 


 

2010.9.20

Igniter test with connected control board:

Video to jpg converter are really cool. You can study motion sequences.

It appeared that not all 4 igniters started to burn at the same time. These cheap igniters are not made for simultaneous ignition.

 


 

2010.9.22

Controller board (Picaxe 08-M) and RC ignition are working now. Camera mounted on the servo.


2010.9.24

Rocket car finished and ready to launch. Stay tuned for the video...

 TBC

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Hmm, but there fit only one igniter into one rocket motor :)

This happens within 0.12 s:

They sell all the stuff you need to make the fuses etc at: http://www.cavemanrocketry.com/index.php