jrc2005

[jrc2005]

I can get the lap counters for $12USD a piece! (I’m from England) Good note about the stability of the car though, I had thought about that.

[jrc2005]

I know what you’re saying about the weakness of the antennas. How about inserting the antenna through a 1.5mm DIA. stiff clear plastic tube (like a drinking straw!)?

The note about the height though isn’t a problem. I’m talking about completely taking apart TOMY’s track counter and combining 4 in a bespoke unitand taking all the excess plastic away -I love a challenge! My bitchar-g’s antenna+ caris 15cm high, that is the tallest the “IR transmitter post” needs to be. I have included this pic to expain the plan…

Anyway, I have all faith in this plan now. I am sure it will work.

Let me know your thoughts, suggestions and comments.

JRC2005

[jrc2005]

Thanx Trackmaster. That’ll be greatto know so I can start to plan the construction of a 4-car lap counter.:smiley14:

[jrc2005]

Nice ideas here, but adding anything to the car itself is going to cause handling and performance problems. Even ifthe transponder isthe size of a dime.

The ideal solution would be to use what Tomy have already made for us in the way of their digital counter “Why re-invent the wheel?”. Take 4 of these andhave one reset button linked to all four counters.

But my real question is Does Tomy’s lapcounter count a lap when the bitchar-g’s antenna passes the IRbeam?

[jrc2005]

I see, I wasn’t aware that the lap counter was that sensitive to actually detect the antenna. The counter must be very sensitive. :smiley6:

Trackmaster, could you let me know if the counter does detect a bichar-g’s antenna by testing it – I would love to know if it does for this idea to work. Thanks. JRC2005

[jrc2005]

I had to sketch this idea out, i also scanned it in for you ppl to take a look at. any ideas and suggestions would be great.

img here: http://www.mercurywd.co.uk/bitcharg_ircounter.gif

PS. sorry about the third posting in 10 minutes!

[jrc2005]

Just foundthis websitewhich look interesting….

http://www.infoserve.net/oss/slotcar/rctimer.htm

They are basically saying that you have a post which 4 different height IR beams are beamed across from to the receivers. Each car then has a flag attached to its antenna at its appropriate height. This idea might work if you bought 4 Tomy lap counters and took them apart to build it.

Hmmmmm, now that is an idea……

[jrc2005]

Thanks for the replies.

I used to race 1:10 scale rc’s and we used to have a transponder clipped to thebonnetof each car in the race (upto 10). I wonder if the same thing could be achieved with the bitchar-gs? The 1:10 scale transponders were about the size of the bitcharg themselves, its worth pointing out.

I dont know exactly know howthe transponderswork but the main transponder receiver beeped when the leader had passed a set no. of laps, signally that he had won the race. It also recorded every lap time of every car on the track! most impressive.

JRC2005

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