Search found 2036 matches

by whodathunkit
Mon May 14, 2018 8:38 pm
Forum: General Car/Truck Racer Topics
Topic: Adding alcohol to graphite
Replies: 5
Views: 391

Adding alcohol to graphite

Hard to say for sure Speedster! It could all stem from this lecture http://www.pinewoodderbyphysics.com/pdf%20files/Lecture%2016.pdf Car Lecture under lecture 16 Or some different web sites . There are some good write ups about it as well. http://www.maximum-velocity.com/pinewood-derby-blog/2015/01/...
by whodathunkit
Sun May 13, 2018 9:23 am
Forum: General Car/Truck Racer Topics
Topic: Adding alcohol to graphite
Replies: 5
Views: 391

Adding alcohol to graphite

Well Speedster,
Some believe that it makes a paste to coat the axles and that it’s sticks to the axle when dry.

Or that the wet mixture packs into the wheel bores better.
And when drys forms a small graphite bushing.
Hope that helps.


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by whodathunkit
Thu May 03, 2018 7:11 pm
Forum: Electronics
Topic: Need replacement switch for RaceMaster timer
Replies: 11
Views: 789

Re: Need replacement switch for RaceMaster timer

This looks to be the correct part, Cherry E53-00R, but it looks to be obsolete. Not sure what a suitable replacement would be. http://www.res-rich.com/cherrycorp/e51.htm https://media.digikey.com/photos/Cherry%20Switch%20Photos/Cherry%20Switch-E51-60B.jpg :idk: maybe https://www.adafruit.com/produc...
by whodathunkit
Thu May 03, 2018 1:53 pm
Forum: Electronics
Topic: Need replacement switch for RaceMaster timer
Replies: 11
Views: 789

Re: Need replacement switch for RaceMaster timer

gpraceman wrote:It looks like you are referring to this thread.
Yes that's the topic I recall.. thanks Randy!


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by whodathunkit
Thu May 03, 2018 1:22 pm
Forum: Electronics
Topic: Need replacement switch for RaceMaster timer
Replies: 11
Views: 789

Need replacement switch for RaceMaster timer

Seems there is topic iv seen on DT
About the race master iv timer switch!

Best I can recall about the switch replacement
A highly well micro switch VT 16031C2
Or one from Allied..
D413-V3LD
SPDT; NO/NC; straight lever actuator;
Gold contacts 100ma; 250vac.




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by whodathunkit
Fri Apr 27, 2018 8:20 pm
Forum: Car & Semi-Truck Construction
Topic: Lights for Lego Pinewood derby cars.
Replies: 0
Views: 227

Lights for Lego Pinewood derby cars.

Looking for light to help your child light up there Lego brick pinewood derby car designs.
Here's a web site offering lights.
https://www.lightmybricks.com.au/collec ... ars-trucks
by whodathunkit
Fri Apr 27, 2018 3:09 pm
Forum: General Car/Truck Racer Topics
Topic: Practice Track Plans
Replies: 4
Views: 496

Practice Track Plans

And very interesting car build as well for the Track Plans Randy ! 3/16"X 1-1/2" Fender washers for wheels... & 10x3/4" screws for axles! Leaving space so they spin freely.. 1/4" in on each end & 1" up on the drill location. What no spacers to keep the upper half of the washers from rubbing on the f...
by whodathunkit
Fri Apr 27, 2018 2:50 pm
Forum: Car & Semi-Truck Photos
Topic: 2018 Tron Lightcycle
Replies: 2
Views: 390

2018 Tron Lightcycle

Look's Cool ciodude!
Bet it's a blast to watch it roll down a track.


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by whodathunkit
Fri Apr 20, 2018 7:27 pm
Forum: General Car/Truck Racer Topics
Topic: WoodShop Racers Pwd Kits!
Replies: 0
Views: 224

WoodShop Racers Pwd Kits!

Some time back I shared a photo of some wheels that were made in china for a different type of pinewood derby car kit. Photo of the wheels type shared: The Wood Shop Racer wheels are seen in the photo on top.. along with some Pine Car wheels on bottom. http://i65.tinypic.com/ic8f2e.jpg I'm wondering...
by whodathunkit
Fri Apr 13, 2018 6:41 am
Forum: Car & Semi-Truck Construction
Topic: Vintage Semi Truck.
Replies: 5
Views: 434

Re: Vintage Semi Truck.

Thanks Speedster!


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by whodathunkit
Thu Apr 12, 2018 8:06 pm
Forum: Car & Semi-Truck Construction
Topic: Vintage Semi Truck.
Replies: 5
Views: 434

Re: Vintage Semi Truck.

Well not my best paint job ..
Image
by whodathunkit
Tue Apr 10, 2018 9:48 pm
Forum: Car & Semi-Truck Construction
Topic: Testing your car on a guided track,when racing on a lane track
Replies: 41
Views: 2004

Re: Testing your car on a guided track,when racing on a lane track

Hi and :welcome: MJThurston. So your racing on a rail less track and it's wood! ( and not the super timer track .) Might look at what your rules say about wheel mods .. ( if the side wall lettering can be shaved off it would help ) If your not planing on using some neg camber on the lifted wheel to ...
by whodathunkit
Mon Apr 09, 2018 9:02 pm
Forum: Car & Semi-Truck Construction
Topic: Vintage Semi Truck.
Replies: 5
Views: 434

Vintage Semi Truck.

Thank's Vitamin K ! I enjoy reading over some of thing's you've posted on different topic's.. Good stuff!!! Well work go's on for the car hauling trailer.. I really wanted to stick the vintage trailer look as well.. but with a twist and incorporate some flames in to it ! ( hope it looks okay?) Still...
by whodathunkit
Sun Apr 08, 2018 3:52 pm
Forum: Car & Semi-Truck Construction
Topic: Vintage Semi Truck.
Replies: 5
Views: 434

Vintage Semi Truck.

It's been awhile since i'v posted anything..So with that said ! Has anyone ever tried building a vintage looking semi.. Using the vintage pinewood derby wheels & 6 penny finish nails for axles ? Thought Id try doing something a little different and play around with the idea of making one . What I'v ...
by whodathunkit
Mon Apr 02, 2018 8:14 pm
Forum: Car & Semi-Truck Construction
Topic: BSA Derby Track across America
Replies: 7
Views: 562

Re: BSA Derby Track across America

The car's are to be 180'' inches in length ( = to 9 feet) and 48,000 ounces..
And there asking how to stop them at the end of the track !

To give you an idea on the size the car would be close to ..
check out this topic by Kcarchitect:
https://derbytalk.com/viewtopic.php?t=8219