Page 3 of 3

Re: Soapbox Racers

Posted: Sun Jun 07, 2015 3:38 pm
by peterwaller
Only up and down the path outside but the event is two weeks today.
The body work is 1mm Polycarb covered in this.
http://www.ebay.co.uk/itm/200801892626? ... EBIDX%3AIT

Re: Soapbox Racers

Posted: Sat Jun 13, 2015 6:48 pm
by peterwaller
Soapbox now complete with a week in hand.
Fitted the instrumentation and decals today.
Image

Image

Re: Soapbox Racers

Posted: Sat Jun 13, 2015 7:19 pm
by earthwormjim
HaHAHA!
Very Good, looks really great.
Good luck with the event.
Hopefully there will be some you tube footage?
"Pink cow gives you wind"!! LOL

Re: Soapbox Racers

Posted: Sun Jun 21, 2015 5:16 pm
by peterwaller
Didn't go too well looks like bicycle wheels are definately the way to go.
Small wide wheels cause way too much drag even when pumped up to 40 psi.
We only came 10th out of 14 in the private entries although they didn't publish the times but I know we also beat several of the company / group entries as some of them needed a push to get to the end and so incured time penalties.
Perhaps we should have spent more time and money on the wheels and bearings and less on tarting it up but it was still fun to build and drive and I am getting used to loosing competitions now I am in my dotage.

Re: Soapbox Racers

Posted: Sun Jun 21, 2015 5:27 pm
by earthwormjim
Live and learn, Peter!
As you say, you'll know for next time!
I am changing mine to a 3 wheeler, I found a 20" moped wheel for the rear, hopefully will be a good compromise.
Sounds like fun, and 10th sounds pretty good for a first attempt, especially for an old timer!!!! LOL.

Re: Soapbox Racers

Posted: Sun Jun 21, 2015 6:38 pm
by Remote-Controlled Dave
I would be proud of 10th of 14th. I'm proud of many things I've come last in, let alone 10th.

Re: Soapbox Racers

Posted: Wed Jun 24, 2015 5:05 pm
by Rapidrory
Was clearing out the shed and found these... May well make a racer with them at some point :L

Image

Re: Soapbox Racers

Posted: Tue Jun 30, 2015 4:11 pm
by earthwormjim
Thinking of making my project into a 3 wheeler. Found this on ebay for £15...
Image
From a 125 motorbike. 24" dia inc tyre. Pretty heavy, but heavy isnt necessarily bad in a gravity racer!!
I figure the rotating mass will help with momentum for flat sections.

Re: Soapbox Racers

Posted: Tue Jun 30, 2015 8:04 pm
by Remote-Controlled Dave
Put a gyroscope in the middle

Re: Soapbox Racers

Posted: Tue Jun 30, 2015 9:53 pm
by earthwormjim
Talking of Gyroscopes....
Anyone fancy a go ????
https://www.youtube.com/watch?v=9Ouxhqz7Y7w

Re: Soapbox Racers

Posted: Tue Jun 30, 2015 10:19 pm
by Remote-Controlled Dave
John Denny put that on Facebook.I think it'll be one of those rides that looks more impressive watching it than it does to ride.