Sorry for not spamming you all for so long. I’ve been slammed with this SR3 project, among other things…
Anyway, yesterday I abandoned my hardware/software solution after not being able to fix one of the two problems I’m encountering with the use of Phidget cards for primary lap counting.
Instead, I installed a Trackmate SCL3 USB card for the primary lap counting gantry (finish line/lap trigger). I’m not a big fan of this card but it does the job and seems to detect my fastest cars both individually and simultaneously, where the 0/16/16 Phidget card clearly did not.
And, Race Coordinator (RC) also supports this card. Because SlotTrak doesn’t support the much more desirable Arduino cards, I’m using the 0/16/16 Phidget card to handle the pit-in gantry sensors (much slower car speeds there), and two Phidget 0/0/4 cards to handle individual lane power.
I’m going to do more testing today and will begin to prepare for a coming track day to really flush things out. I’m going to need five drivers and the fastest, noisiest cars we have to run things through the paces and make sure everything works properly with SlotTrak. I’ll configure and test RC once I have SlotTrak rock solid.
If you have T-Jets and/or L10 cars, please let me know. I’d like to test a few this coming week and maybe do a track day on SR3 next Saturday. T-Jets and most “pancake” cars are very noisy electrically, which can generate phantom laps if track circuitry is not adequately shielded.
Okay, shut-up and drive!
Steve may not have seen the single-car detection issue I’m seeing because his lap timing gantry is only 18 inches from the final corner (SR3’s final corner is nearly six feet from the lap timing gantry). However, he did encounter the simultaneous car detection problem, which I duplicated on my track tonight.
Another option for solving this would be to add a 1.5-in long piece of black tape to the back of each car. Not sure if everyone would go for that but it is way cheaper and quicker. And, just think…you could paint or otherwise detail the tape for concourse consideration!
I don’t have the track sections connected to each other yet but I tested the gantries and all the power control logic by hand and with a test car on one section. Both seemed to work as expected and nothing caught fire.
Before I get to the above, I’m going to lift the track to the ceiling and clean out the entire garage. Need to blow and vacuum the whole place out due to all the damn sawdust, wire insulation, tie-wrap debris, etc. Also need to get rid of a bunch of bikes and bike parts. This track takes up a bit more space and will force me to get rid of stuff that has been hanging on the walls or just laying around forever. I also need to wash my motorcycles before the sawdust becomes permanent.
So, where are things? Well, the table and track roadway placement has been completed. The track power distribution system is complete and tested. While there are still technical hurdles to overcome, the goal of supporting different voltage levels for each lane–by the driver–has been achieved. It’s not completely ready, but drivers can select any voltage they’d like to run when testing or practicing. This means you can practice/test any car, at any voltage, at any time racing is not underway. Think about that…you no longer have to restrict yourself to 15v, 12v, 20v, or whatever. You can go to any open lane, set the “lane” voltage (at the driver station), and run your car.
Other than six lanes, and a much larger layout, SR3 is expected to support the same racing features that SR2 supports. One small difference will be a slight increase in pit spacing. SR3’s dual gantries will be spread slightly further apart to compensate for the higher pit entry speeds.
So, SR3 is coming along nicely. My garage is a complete disaster but the new track is going to be quite cool. Yea, lots more work to do, but it’s getting close. Really only need to wire the gantries up and I can start testing things. The 6-lane, dual gantry setup adds some complexity and delay. I had planned to just use the usual RJ-45 twisted-pair cable to handle that but RJ-45 only provides 4-pair, which doesn’t quite handle a 6-lane dual gantry setup (need 6-pair x2). Yea, yea, I could make it work but decided to find some 6-pair cable to handle this. Sadly, it’ll take a week or so to arrive.
The final round of the 2022 Formula “e” Series is in the books. This series was unique in that it featured one class of car in a 400-lap, endur0-thon race at each event. We’ve all done 12-hour, 24-hour, six-hour race days. This feature race is a 50-lap/segment race where each driver does two rotations in each lane to complete 400 laps. Combine this with five other 20 or 30-lap races and you get a very stressful day of adrenaline-pumping action.
Round 5 was held on the SR2 straight road course and got underway a bit later than usual.
Race 1: Tyco-Jet IROC(12.5v)
Race 2: Jag Hobbies TR-3 “Lites” (15v)
Race 3: OS3 TFX “Lites” (18v)
Race 4: Viper Formula “V” (12.5v)
Race 5: Jag Hobbies NC-2 GT-40 “Lites” (15v)
Race 6:Â Jag Hobbies PR-5 F1/Indy “Lites” 400-Laps (16.5v)
Wow! Another great series and very competitive racing. Congratulations to Ian for winning his second straight Stewart Raceway series and supporting our racing program. Ian is a class act and an extremely talented and accomplished slot car racer/builder. He also has an incredible talent for tuning and campaigning some of the best performing and nicest-looking cars we’ve seen since Ted Essy abandoned us for Sac…just saying.