Search found 933 matches

by Vitamin K
Sun Mar 26, 2017 2:45 pm
Forum: Car & Semi-Truck Construction
Topic: wheel source
Replies: 14
Views: 265

Re: wheel source

Speedster wrote:Thank you.
Do you have the rules available for what the NSC allows on wheels? It would seem they are perhaps very generous.


NSC rules are here.

Best Scout PWD rules in the country, IMO. I cribbed heavily from them when I revised our District's rules.
by Vitamin K
Wed Mar 22, 2017 1:10 pm
Forum: Car & Semi-Truck Construction
Topic: wheel source
Replies: 14
Views: 265

Re: wheel source

davet wrote:Anybody know a good source for wheels?
7.5 mm wide, double step removed and 1.165 or so diameter.
Thanks.


Normally would have pointed you in the direction of Derby Evolution's R160s but it seems like they're closing up shop. Not sure if they're taking new orders.
by Vitamin K
Wed Mar 22, 2017 7:17 am
Forum: Car & Semi-Truck Construction
Topic: Any recommendations for car design? Help appreciated...
Replies: 157
Views: 4164

Re: Any recommendations for car design? Help appreciated...

Vk, you say your wife stores her polish in the refrigerator! Storing polish in fridge will slow down the discoloration that happens as it gets older.. Reduces solvent evaporation & pigment caking and settling! And keep you from spilling it while it's cold. But what happens when you store flamma...
by Vitamin K
Wed Mar 22, 2017 6:24 am
Forum: Car & Semi-Truck Construction
Topic: Any recommendations for car design? Help appreciated...
Replies: 157
Views: 4164

Re: Any recommendations for car design? Help appreciated...

I couldn't find Sally Hansen Teflon Tuff, so I went with CA glue. Just smeared out a few coats using a toothpick. If some gets into the axle hole, it's not a big deal. You can just twist it out with the tip of the drill bit you used to make the hole. I smoothed it out with 1000 grit sandpaper, and t...
by Vitamin K
Wed Mar 22, 2017 5:14 am
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Graphite Clean Up

In case anyone is interested, I have discovered that baby wipes work very well for wiping graphite off of car surfaces! I used Member's Mark (Sam's Club) brand (the unscented). They even worked well on painted surfaces that had little to no top coat. Good to know! We use the Costco brand wipes. Ple...
by Vitamin K
Fri Mar 17, 2017 3:04 pm
Forum: Electronics
Topic: Lasers as better finish-line emitters?
Replies: 3
Views: 124

Lasers as better finish-line emitters?

So, a recent discussion has prompted some research into light sensitivity of Pinewood Derby timers. Namely, how most timers are affected by large amounts of ambient light. Sunlight, camera flashes, etc, seem to have the potential to oversaturate the light sensors and prevent them from detecting when...
by Vitamin K
Fri Mar 17, 2017 2:07 pm
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Second year racing

Thank you Vitamin K! I assumed I would need foam but I wanted to see how others did it. I have had several items from Amazon damaged lately (one of the light sets was packaged with stain removing spray that burst open), and so if I am going to do this, I want it as secure as humanly possible lol. D...
by Vitamin K
Fri Mar 17, 2017 1:19 pm
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Second year racing

Ah, shipping horror stories! 5Kidsracing put together a pretty good how-to for the NPWDRL league...though it would work just as well for sending to Mid-Ams: http://npwdrl.boards.net/thread/74/5kidsracing-shipping (You can disregard the stuff on staging notes...not sure if the Mid-America folks follo...
by Vitamin K
Fri Mar 17, 2017 12:25 pm
Forum: Space Derby
Topic: Ideas for an Autowinder?
Replies: 2
Views: 102

Re: Ideas for an Autowinder?

It would seem that you could adapt that to wind rubber bands for Space Derby rockets. I think the design would need to be modified to give each "spindle" (for lack of a better term) two pulley attachments, so that you could "daisy chain" one spindle to another. You'd also need o...
by Vitamin K
Fri Mar 17, 2017 12:17 pm
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Second year racing

TechGirlPa wrote:Vitamin K, the rules say that if it has light, they have to be turned off, so I am assuming that means they leave them off for the race. :(


Aww, what a bummer! I wonder why that rule?
by Vitamin K
Fri Mar 17, 2017 11:25 am
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Mid America

Speedster, so I looked into the Mid America race. I haven't registered yet because I will wait a week or so and see how it goes, but.... I may or may not have picked up a "basic racer" block at Lowe's yesterday lol. It looks like they don't light them up in the race so I am working on a d...
by Vitamin K
Fri Mar 17, 2017 7:39 am
Forum: Space Derby
Topic: Ideas for an Autowinder?
Replies: 2
Views: 102

Ideas for an Autowinder?

Grant Thompson is making an automatic rope winding machine. He posts the first part of the video here:

Of course, what I'm wondering is whether his contraption might serve as the basis for a Space Derby autowinder? Hmmm. :)
by Vitamin K
Thu Mar 16, 2017 1:17 pm
Forum: Planning, Preps & Running the Race
Topic: Community Derby Race
Replies: 4
Views: 202

Re: Community Derby Race

Very cool. I dig that flyer design a lot!
by Vitamin K
Thu Mar 16, 2017 11:41 am
Forum: Tracks
Topic: Building Test Track - need angles
Replies: 5
Views: 137

Re: Building Test Track - need angles

If you want to try to mimic a BestTrack, which is what a lot of the high-profile races run, they actually put the specs online. You can view them here.
by Vitamin K
Wed Mar 15, 2017 6:48 pm
Forum: Car & Semi-Truck Photos
Topic: Second year racing
Replies: 31
Views: 552

Re: Second year racing

Nice!

(I wish my church held a derby race!)

I dig those lighting effects. Any details to share on how you wired them up?

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