Rocket car [Update: New video!!]
@ June 13, 2010
The rocket car was build from three RTF model rockets, a cardboard roll, 3 mm stainless steel wire, four 56 mm dia. TAMIYA racing wheels, plastic tubes, a lot of epoxy, aluminum foil and Epoxy Resin Putty.
The rocket car weights around 400 g and will be propelled by two C6 blackpowder model rocket engines. I plan to measure the burnout velocity. The wheel encoder (from an damaged printer) is mounted on one of the front wheels and contains two Hall sensors. The wheel encoder has a resolution of 30°.
The ignition of the rocket motors is remote controlled. After the burnout time is reached, a Picaxe 08M counts the wheel encoder impulses in a defined time intervall and display the value via two CMOS 4026 on a 2-digit-7 segment display. It is then easy to calculate the burnout velocity. I will compare the measured burnout velocity with the calculated burnout velocity by the rocket car equation I have derived.
2010.6.16: New video is up! Have fun and more soon!
@ Tue, 2010-06-22 09:00
cost
hoew much wiil this robocar cost
@ Tue, 2010-06-22 09:21
Around $30 as I have
Around $30 as I have mentioned above.
@ Sun, 2010-06-20 03:11
RE: Pictures
Wow that was some digging, but I found my old rocket car.
Here's some pictures:
~ Yeah that is a Teenage Mutant Ninja Turtle sticker on the rocket car :-)
@ Sun, 2010-06-20 07:33
Looks great!
Looks great!
@ Sat, 2010-06-19 19:09
RE
Nice job on the rocket car.
I built one of these like 20 years ago. I still have it here somewhere. I got mine to reliably launch straight by doing 2 things different than yours:
1. use puffy rear wheels to better absorb ground deviations
2. lower the front via small wheel(s), so during launch it raises to level itself off (does a wheelie!!!) and only the rear wheels touch the ground.
After setting mine up this way it would go 600ft straight every time, and it was much faster while doing so.
Once I find mine I'll post a picture of it.
@ Sat, 2010-06-19 22:49
Thanks. Would be cool if you
Thanks. Would be cool if you could find your rocket car and post a picture here.
@ Fri, 2010-06-18 14:05
Definitely handled better
Definitely handled better than I predicted. Well done Marcus!
@ Fri, 2010-06-18 10:25
Guys in this whole site i
Guys in this whole site i feel like i am in the emission Prototype This and this rocket ROCKS!
@ Thu, 2010-06-17 12:30
now that rocks :D
now that rocks :D
@ Thu, 2010-06-17 13:03
yeah...listen to the engines
yeah...listen to the engines moaning...here I am, on the road again...but you just want to explode...
As I shoot this video, I had this song from Metallica in my head...