Search found 66 matches

by Doug-in-the-woods
Sun Feb 24, 2008 1:24 pm
Forum: Scheduling Methods
Topic: A different race format?
Replies: 4
Views: 5154

Re: A different race format?

Totally rely on the electronics = yes but any computerized system does the same Who races who = dosn't matter. winner in each division is determined by fastest et. remember the start gates are independent of each other when the timer is triggered so a slow start gate does not have anything to do wit...
by Doug-in-the-woods
Sun Feb 24, 2008 9:31 am
Forum: Scheduling Methods
Topic: A different race format?
Replies: 4
Views: 5154

A different race format?

We just held our local race on Friday nite using a different race format. Have 2 lane track with 2 independent timers. Each timer has its own triggering switch (car one can leave first and car 2 can leave X time later and both cars can have the same E.T.) NOTE the starting gate is electric and if de...
by Doug-in-the-woods
Sun Jul 08, 2007 9:12 pm
Forum: General Car/Truck Racer Topics
Topic: Help with a craftsman 10" band saw.
Replies: 10
Views: 4138

Re: Help with a craftsman 10" band saw.

If the wheels have groves then you need to replace the tires and / or wheels. The tires should be smooth no groves. The set on the blades could be a problem but correct the obvious first =the tires. If the wheels are aligned then the tires would be my next correction. On blades, I find the Olsen pro...
by Doug-in-the-woods
Tue Jul 03, 2007 8:19 am
Forum: Electronics
Topic: IR leds vers Halogen light bulbs
Replies: 12
Views: 6758

Re: IR leds vers Halogen light bulbs

The leds are / were rated at 20ma.
Could maybe get some higher rated leds perhaps.
Saw some on net just need to relocate.
by Doug-in-the-woods
Mon Jul 02, 2007 9:33 pm
Forum: Car & Semi-Truck Construction
Topic: Rule and letting weight move
Replies: 8
Views: 2845

Re: Rule and letting weight move

As far as movable weight, I have seen a very fast, well performing car that used a tube burried inside the car and the tube had mercury in it.
The weight moved very freely making the car very fast.
by Doug-in-the-woods
Mon Jul 02, 2007 9:28 pm
Forum: Car & Semi-Truck Construction
Topic: The Limit of Pine as a material
Replies: 5
Views: 2593

Re: The Limit of Pine as a material

I find using a piece of baltic birch plywood glued to bottom of pine block aids in strength and prevents warpage. I use 1/8" bb ply but 1/16 is available as well. the 1/8" bb ply is available w/ 3 plys as well as 5 plys (ecxpensive stuff). The 5ply 1/8" is sold as aircraft quality plywood (used for ...
by Doug-in-the-woods
Mon Jul 02, 2007 5:02 am
Forum: General Car/Truck Racer Topics
Topic: Help with a craftsman 10" band saw.
Replies: 10
Views: 4138

Re: Help with a craftsman 10" band saw.

The guides should be flat and adjusted the thickness of a slip of paper from the blade If the tires have groves then I would start there. Replace the tires and maybe locate an owners manuel to show wheel adjustment and alignment. To check alignment place a long straight edge (yard stick or ?) across...
by Doug-in-the-woods
Sun Jul 01, 2007 12:19 pm
Forum: General Car/Truck Racer Topics
Topic: Help with a craftsman 10" band saw.
Replies: 10
Views: 4138

Re: Help with a craftsman 10" band saw.

One problem is it's Craftsman. Not real good power tools. Sounds like the wheels are warped or out of adjustment. All the wheels must be in line with each other. The tires could also be bad. After each use one must loosen the blade tension so the tires don't take a SET. I would check the alignment f...
by Doug-in-the-woods
Sun Jul 01, 2007 7:01 am
Forum: General Car/Truck Racer Topics
Topic: Fund Raising PWD race next weekend 06/30/07
Replies: 3
Views: 1874

Re: Fund Raising PWD race next weekend 06/30/07

The fund raising PWD race went pretty good for a first time event. Gave out some beautiful trophies, lots of prizes and everyone had alot of fun. Had a camera but was too busy conducting race. The start tree worked great and was a great hit for the races and spectators. I highly recommend adding to ...
by Doug-in-the-woods
Sun Jul 01, 2007 6:43 am
Forum: Electronics
Topic: IR leds vers Halogen light bulbs
Replies: 12
Views: 6758

Re: IR leds vers Halogen light bulbs

Well the Race went off pretty well considering that the turn out of racers was low but the crowd was big. Question 4 superdave- the Halogen bulbs worked great in shop but get the finish line outside and one lane won't read correctly. Won't detect when car passes so the timer won't display time. Same...
by Doug-in-the-woods
Fri Jun 29, 2007 9:35 pm
Forum: Electronics
Topic: Lane Brain Order of Finish unit
Replies: 3
Views: 3748

Re: Lane Brain Order of Finish unit

I sent the LaNRE bRAIN IN AND THEY SENT ME 3 NEW DECTORS. i PLACED NEW PURPLE DECTORS BEHIND THE TIMER DECTORS AND THE hALOGEN BULBS WORK JUST FINE AT 8" HEIGHT OR IS IT (oups caps on, sorry)7 inches. need to remeasure. Can detect an ice pick waving over the lamps. And the start gates now have the o...
by Doug-in-the-woods
Fri Jun 29, 2007 9:28 pm
Forum: Electronics
Topic: IR leds vers Halogen light bulbs
Replies: 12
Views: 6758

Re: IR leds vers Halogen light bulbs

Wouldn't IR be perfered over visiable light IF the IR is pulsed say 38meghertz?
Or DTMF?
I believe most ifnot all tv audio equiptment uses such?
An IR beam that caries the DTMF signal and the dectors hav a detection circuit which decodes ONLY the carried signal?
A greator distance could be utilized?
by Doug-in-the-woods
Mon Jun 25, 2007 3:51 pm
Forum: General Car/Truck Racer Topics
Topic: Test track set up w / timers etc
Replies: 6
Views: 2397

Re: Test track set up w / timers etc

Track is an aluminium track made by Beta. I mounted it betweenwooden frames.
The timers are made by Swantech utilizing a photodiode and Halogen light bulbs.
one per lane.
As for the math What are the formulas I need and hope I don't get lost.
by Doug-in-the-woods
Sun Jun 24, 2007 9:20 pm
Forum: Electronics
Topic: IR leds vers Halogen light bulbs
Replies: 12
Views: 6758

Re: IR leds vers Halogen light bulbs

If I get time I plan on adding a 110v power supply but running outta time.
by Doug-in-the-woods
Sun Jun 24, 2007 9:17 pm
Forum: Electronics
Topic: Starting gates & tree pics
Replies: 3
Views: 3351

Re: Starting gates & tree pics

Track is onlly 2 lanes.
If I get time, I plan on adding a switch so both gates open together like a conventional start gate.