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Matt K

Any Way To Vary Speeds On Pace Cars Using The C7042

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I have been experimenting a bunch with my C7042 and different race set ups. Our club has been doing some racing and we have not been able to fill a full 6 car field in some of the classes. We have filled the extra spots with pace cars. The pace car set up is easy enough to use after you play with it for a bit. My question is this: our track has 1 tight hair pin turn just before the final straight away to the start finish line. When we run the pace cars we have to keep them slow enough to make that final hairpin without de-slotting. This then makes the pace cars fairly slow on the rest of the track, sometimes even stopping on the LC's flipper at times. Any more speed and they de-slot in the hairpin. I have heard talk of a way to "record" a lap with a human running the car and then have the c7042 have the car keep repeating that lap. Can this be done using just the c7042 or can it only be done using a race management software such as SSDC? Thanks again for any and all help!

 

 

Matt

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If memory serves you can do it with the 7042. Its buried deep in that nonsense that Scalex call an instruction manual.

Edited by sigmaman

www.sigmamansmodels.com

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what I have done Matt is add and extra magnet to the pace car, as they come in different size and strength try a smaller one and biuld up to larger sizes till you have found the size that is just large enough to keep it on the track. If all you have is bar magnets then break one in half or in thirds Hope this helps....Rick

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Hi Matt,

 

You can also increase the downforce of the pace cars by putting a metal washer on top of the existing magnet, more if needed. I had a hairpin in my first digital layout but removed it so the pace cars could travel at a decent speed, removed it but have since put one back into my layout for a bit of variety.

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Mattcrackers,

 

Thanks for the idea! I have used the magnets, trued the tires and wd-40 to tires but never thought about additional weight. I like the hairpin in the track. It also helps to keep the speeds down. I also like to have to "drive" the cars instead of just pull the trigger! Thanks again for the help! My friends and I started a club and we are having a ball with the track. We started a facebook page, a youtube channel and a website. We really hope we can get a strong race group going and have a blast. Any help, ideas, advice or such would be appreciated! You can check out the website at www.logansridgeslots.webs.com

 

It has pictures, videos and more there.

 

Thanks again!

 

Matt

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about the pace cars,

 

I have also noticed that the pace cars never really stay at the same speed. We usually run 50 to 75 lap races on a large layout. It seems that they start out ok but then seem to slow down once we get midway into the race. If we have a lot of track calls where the cars are stopped quite a bit they will start to speed back up. Is this due to the motor getting warm?

 

Matt

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Matt,

Adding a washer(s) to the magnet not only increases the cars weight but depending on the size of the washer it also increases the cars downforce because you have virtually increased the size (area) that the magnet can attract to the tracks rails, I found that the larger circumference of the washer the more downforce the car produced (measured using my homemade magnet marshal-not an exact science but it works).

Your right about the pace car speed, motor getting hotter seems to slow them down a bit, dirty braids, worn braids slows them as well and then although they are mostly 18000 RPM motors in the standard scaleys, not many are actually the same, some more powerful than the others, some slower. You can even cars out by using the washers to even out the downforce/weight of cars.

 

Matt

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I cant think of an easy electronic trick to slow a pace car down without having location tracking of some sort ie just way more complication. I do have a nagging "what if I use an accelerometer inside the car, a bit like a gyro in a model helicopter keeps it straight" to try and predict a problem and thus overide/slow down. But again that aint going to be simple.

 

Back to reality...

 

We often race with pace cars also and the above comments pretty much handle the simple solutions;

dont do hairpins or increase traction on the pace cars.

Racing a non mag up a gainst a magged pace car can be fun ;) for example.

 

I have also noticed the pace cars can slow down even after only 10 or so laps. As yet(iSSD is all still new to us ) I havent investigated this further but its on the todo list.


@@@@@@@@@@@@@

regsneers

Mark

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If you want an electronic way then try this:

 

Take out the joining button pieces at one joint of track for the right rail of both slots. Do the same say two straights away.

Make sure the rails dont touch. Now join the rails at one end with a resistor of value something in the order of 24 Ohms.

 

Mess around until you have the cars still driveable but top speed much lower.

 

Now bridge the full voltage rails either side of the dumbed down section.


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.............................PM me for C7042 Aux to PC cables............or Pit-Pro...

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Holly Cow!!!!! Adding the washer was the instant cure!!!!! The car can come close to full speed and stay on the track with the largest washer I purchased. I will work down in size on the washers until I find the perfect size for still good speed but drop some weight. I am assuming that the added weight and magnetism drag will be harder on the motor??????? Thanks for the help, and what a difference. I cant beat the pace cars now!

 

Thanks,

 

Matt

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Matt,

 

The added downforce will always be harder on the motor but do as you have said and work down in washer sizes until you find the right one and they should be fine, beats having pace cars that really have no pace.

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