Derby Talk

Hello all, I've moved all of the timer resources to my new website: https://www.dfgtec.com/pdt The main benefit of the new website is that it is mobile ready - basically it is usable on phones or tablets. (If you ever tried using the old site on a phone you will know what an improvement this is.) Al...

Items have been sold.

Skywalker Racing wrote: ↑

Fri Feb 09, 2018 9:48 pm

PM sent

Reply sent

bobcatbrown520 wrote: ↑

Wed Feb 07, 2018 1:46 pm

Still have this

Yes, still available. Price lowered to $170.

*** SOLD *** Hello all, My son finished cub scouts a few years ago and we're just getting around to cleaning out our old supplies. Some of these we used yearly, some not at all. Most of the car parts (bodies, prepped wheels/axles, fenders, etc.) were door prizes from different races he attended. $1...

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 a car has crossed the finish line. I always knew this was an issue but I was still amazed when I w...

Had a GPRM user that was running into trouble using the software with your timer. I did notice that the GPRM settings on your website list a Retrieve Data command. That command is not necessary if the timer will send the results to the computer automatically after the heat is over. I had the user r...

Very cool! I also heard you were onhand to help with the Guinness Book world record attempt, so props for that too! Thanks! It was a lot of fun to be involved in that effort. Here's a picture of the timer I built for them: http://www.miscjunk.org/mj/images/pdt_WRPDT_2.jpg A few interesting notes of...

Hello all, It took longer than expected but I've finally finished a huge update to the PDT - I'm calling it the Halloween update. :D Over the last couple of years there have been numerous custom configurations that I've helped people with and I've finally added the best of them as general configurat...

Do you know if the risk has been checked out? Sounds like it would take more than a few minutes to rectify if not discovered until after the first test run on race day! Hi Stan - sorry for the delayed response. Greg had asked me to build a customized version of my Arduino based timer to use on thei...

What about the voltage drop on the wire from start gate to finish line? Might also be waveform distortion. 2000 ft of wire could be an issue. Or has this been tested and proven okay... no "repeaters" required along the pathway? The voltage drop isn't an issue. 2000' feet of wire has a resistance of...

Very cool! Thanks for sharing. I have a Raspberry Pi but I haven't done much with it - I should give this a try.

How well does the small lightbox work? I've been thinking about getting one. Do you have a car photo you can share?

Thanks,
David

Hello all, Over the last couple of months I've been doing a major update of the PDT website's content, specifically on the following sections: Construction - covers timer bridge, circuits, displays, etc. Software setup - covers configuring & upload of timer software, interfacing to PC software, etc....

Track has been sold.

My question is: how do you protect the IR receiver? What type of track do you have? For a BestTrack track and I'm assuming most metal tracks the method shown on the PDT construction page should work pretty well (scroll down to the emitters/detectors section): http://www.miscjunk.org/mj/pg_pdt_info1...