Search found 68 matches

by Doug-in-the-woods
Tue Apr 10, 2007 6:14 am
Forum: General
Topic: Difference in mechanical switch versus electronic switch
Replies: 2
Views: 8756

Re: Difference in mechanical switch versus electronic switch

not sure what an 1ac timer is but an electronic switch is faster switching, it inputs into the timer a "clean" glitch free signal. A mechanical switch will cause what is referred to as switch bounce. A simple switch that is redly available from local Radio Shack is called a HALL EFFECT swi...
by Doug-in-the-woods
Mon Apr 09, 2007 7:23 am
Forum: Do-It-Yourself
Topic: Digital timer for $35 per lane
Replies: 3
Views: 9743

Re: Digital timer for $35 per lane

we are going to have 2 classes, 2 divisions STOCK and A. G. MODIFIED (anything goes almost) ages 5-14 and 15-85 run 4 races for best et then start eliminations. Hopfully have 100+ cars as well as a BEST OF SHOW car show. I know the eliminations sound brutal but have to start somewhere eliminating ca...
by Doug-in-the-woods
Mon Apr 09, 2007 7:08 am
Forum: Solenoid Start Gates
Topic: Adding Reaction Time & Red Light to Start Gate
Replies: 40
Views: 69173

Re: Adding Reaction Time & Red Light to Start Gate

am presently designing such a tarting gate / tree with a very simple circuit that if the driver opens the start gate before the gree light the red light comes on in their lane. Car still runs but is "red lighted" the circuit I am designing is based on a quad D flip flop (74hc175) and coupl...
by Doug-in-the-woods
Mon Apr 09, 2007 6:53 am
Forum: Do-It-Yourself
Topic: Digital timer for $35 per lane
Replies: 3
Views: 9743

Digital timer for $35 per lane

Am working on designing and building a racer actuacted starting gate/xmas tree as well as a timing system. Driver actuactes starting gate before green light -- YOUR OUTTA HERE! Ran across this site http://www.swan-tech.com/Computer%20Interface.htm and wondering if anybody has tried this set-up. Look...
by Doug-in-the-woods
Wed Apr 04, 2007 8:31 am
Forum: Planning, Preps & Running the Race
Topic: Open Class Rules
Replies: 5
Views: 8016

Open Class Rules

RULES for upcoming June 30th race A. G. MODIFIED Anything goes (almost) RULES 1) Can not damage the track. 2) Can not hurt anyone. 3. WIDTH: Car must fit within its lane. Track lanes are 3 ½” rail to rail. Recommend 3” maximum width. The body width where the axles attach to the wheels shall not be l...
by Doug-in-the-woods
Wed Apr 04, 2007 7:31 am
Forum: Car & Semi-Truck Construction
Topic: Home-made decals
Replies: 11
Views: 9078

Re: Home-made decals

My cubscouts built several cars in my shop and I took pictures of each scout (head shot) then resized pics, then printed onto clear self stick labels available from office supply stores. they come in full sheets etc. just print w/ inkjet then cut out, peel backing and apply. must be clear coated as ...
by Doug-in-the-woods
Tue Apr 03, 2007 8:57 pm
Forum: Commercial
Topic: Brand of track ?
Replies: 1
Views: 5343

Brand of track ?

Our cub scout pack purchased an aluminium track w/ an order of finish finish line.
Track was purchased from scout shop or scout catalog in 2002
how can one determin what brand so more track can be bought.
havn't seen any brand name on it??
Hoping someone purchased same??
by Doug-in-the-woods
Tue Apr 03, 2007 5:44 am
Forum: Car & Semi-Truck Construction
Topic: No rules open class..?
Replies: 33
Views: 28132

Re: No rules open class..?

You can have your prop cars but this soda bottle car looks like it could blow that prop car off the track--LOL

http://www.et.byu.edu/~wheeler/benchtop/xderby.php