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View Full Version : Ford Torino 1/32 slotcar to RC conversion


Fovea3d
2007.07.30, 11:54 AM
It has been a long time since I wanted to do that, buying a cheap scalextric slotcar to convert it to full propo RC :D
Some slotcar bodies have very nicely detailed bodies and my goal was to use the chassis and wheels as well, and not only put that body on a mini-z for instance.
I used spare parts that I bought separately just for projects like this one: Team Losi micro-T esc, steering servo and battery.

It was not very difficult to design a steering, I just took my inspiration from any other carbon chassis prototype making a steering bar and linkage out of strong metal wire. My dremel helped a lot on this :cool:
I used atomic knuckle and axles, there is even a front suspension on that thing...

The only downfall is that I can't simply swap the stock 12v 130 motor for a mini-z type motor as I first intended. The slotcar motor looks just like a Mini-z one only the gear is located... on the wrong side!!! The longest part of the axle that holds the gear goes out on the brushes side. As the motor is press fitted on circle and oval shapes moulded on the chassis it can't simply be reversed. I did not find a fix to that yet so I am stuck with the 12v motor now. Maybe I can find a way to rewire the rotor for more speed.

All in all the car is working. It is a bit sluggish due to the 12V motor, actually it feels just like a stock mini-z lit! The stock tires have good grip on carpet. The lack of diff and rear suspension has no effect at that speed. I will see how it goes soon with a better motor to make it go at micro-t speed :eek:

Surprizingly, my custom steering works rather good, the turning radius is correct and the straight line is stable.
Sorry for the dust all over the chassis, just back from a test drive on my carpet track ;)

http://alain.galluser.free.fr/Z/0707TorinoMicro-T/07.jpg
http://alain.galluser.free.fr/Z/0707TorinoMicro-T/10.jpg

Pict 01 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/01.jpg)
Pict 02 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/02.jpg)
Pict 03 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/03.jpg)
Pict 04 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/04.jpg)
Pict 05 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/05.jpg)
Pict 06 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/06.jpg)
Pict 07 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/07.jpg)
Pict 08 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/08.jpg)
Pict 09 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/09.jpg)
Pict 10 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/10.jpg)
Pict 11 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/11.jpg)
Pict 12 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/12.jpg)
Pict 13 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/13.jpg)
Pict 14 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/14.jpg)
Pict 15 (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/15.jpg)

bobbyz
2007.07.30, 02:44 PM
fav-

this is very nice to see. i was just thinking about this on my drives to and from work this last week. this gives me hope that i could pull this off too. i have a micro-t that just sits around, and i even have motor from a little new bright battery opertated car with a motor shaft coming out of the correct side for this type of application. have you tried this car out on rcp yet? i think one of the hobbyshops around here has 1/32 scalectrix cars. i saw a green aston martin that i liked last time i was there. here are my other questions: what's runtime like? what are those green pcb things on the front and back? is that starsky or hutch driving:). good work.

Fovea3d
2007.07.30, 04:58 PM
Thanks!
Well it was easy to build after all. I guess I got lucky with everything fitting exactly where it should go, I even could use the interior, yeah its Starsky driving, it should be fun driving this around at races...
Nice project that of the Aston. Just make sure you have enough room under there for the components, but its a big car in reality, it should be OK.
The green circuits front and back hold SMD leds for lights wich actualy work at the micro-T voltage, also there is a red led on the roof wich blinks as well :D No RCP track around here now, but it should work well on there, the traction is really good with no diff.
Runtime is about twice as of my micro-t, around 15min probably because the 12v motor does not drain much juice.
With a micro-T motor it should just run twice as fast IMO and also run less time. I wonder if it actually could do wheelings as the CG is rather far behind.
If you need detailed pictures or advises for your project just ask. On the chassis itself all you need is to drill some holes, build a plate out of a plastic card that holds the top of the knuckle axles and grind some plastic to fit the servo. The steering linkage is rather simple: 1 steering rod shaped with rings at the correct distance between knuckles and 1 other link with rings between either knuckle and the servo. I used antenna wire for the linkage, but not from mini-z, it was some harder metal.
Most time consuming was actually to length and solder the servo cable from front to the back because it has 5 bits.
Watch the video (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/Torino.wmv) (sorry, hard to film and drive at the same time).

Size compared to my AWD

http://alain.galluser.free.fr/Z/0707TorinoMicro-T/16.jpg
http://alain.galluser.free.fr/Z/0707TorinoMicro-T/17.jpg

herman
2007.07.31, 12:22 AM
once again... pretty cool project... :D

Roketmini
2007.08.01, 06:31 PM
That is TOTALLY AWESOME! I always stop and look at the slot cars at my LHS. That's a really cool conversion.

Is there any way you could swap the Torino for other bodies?

Fovea3d
2007.08.02, 09:10 AM
That is TOTALLY AWESOME! I always stop and look at the slot cars at my LHS. That's a really cool conversion.

Is there any way you could swap the Torino for other bodies?

Thanks! Well I used the original chassis that came with the Torino and it has specific dimensions to fit the body. Also it is mounted on with 4 screws and the position of the screws differ from one body to the other. What I will try to do now is a generic steering block with its own frame including the knuckles and linkage so the conversion of any slotcar could be done in less than an hour :)
Next 1/32 slotcar I need to try is one made by Vanquish because they include a differential (slotcars don't have diffs usually).

BTW having the battery located on the back seats in the Torino I can charge it with the cable passing through the side window. I need a pair of tweezers to plug it back but its cool not having to remove the body for charging :D

idreamz
2007.08.02, 10:19 AM
Very nice! it's almost so big you could fit a MR01 chassis in it, but I guess it's just a bit too narrow for that. For such a scale build I think you should add some lights to it if you haven't already.

Also for the mictoT battery charger did you know you could solder on a 12V power source for it?

Add: watched the video now, nevermind the lights. Looks like it drives really nice. Interesting that the Micro T PCB produces this caracteristical sound.

Fovea3d
2007.08.02, 03:21 PM
Very nice! it's almost so big you could fit a MR01 chassis in it, but I guess it's just a bit too narrow for that. For such a scale build I think you should add some lights to it if you haven't already.

Also for the mictoT battery charger did you know you could solder on a 12V power source for it?

Add: watched the video now, nevermind the lights. Looks like it drives really nice. Interesting that the Micro T PCB produces this caracteristical sound.

Well actually the MR015 chassis fits under that body (http://alain.galluser.free.fr/Z/0707TorinoMicro-T/torino015.jpg) but only with very narrow wheels (I had to thin down wheels for another project so I could try). The problem is with the diameter of the Mini-z wheels wich is way out of scale. Next I tried adapting the slotcarwheels to the MZ chassis but another problem occured, the diameter of the slotcar tires was smaller than the differential gear. Well I like it as it is now, I kept the most of the original car and from outside you can barely notice the difference with an unmodified Scalextric, only the front guide is missing... ;) Also its interesting to see how a slotcar behaves out of its track :D Oh and the lights were included, all good!

Yeah thanks for the 12V adaptor for the charger. I already did the mod on my Mini-z Lit charger, just did not have time to do that for the Micro-T.

arch2b
2007.08.05, 05:16 PM
i love the idea of racing a slot car around on the track. what you've done fov is amazing yet simple, in a manner of speaking.

i look forward to seeing more of these projects from you

marc
2007.08.11, 12:49 PM
So now the "T" in Micro-T stands for Torino? Micro-Torino?

Fovea3d
2007.08.11, 05:51 PM
Thanks Arch, Marc!
Yes it is some kind of Micro-T with other clothes ;)

Well it is still sluggish, no way to find a 4.5Volts 130 motor that has the axle coming out at the brushes side...
I tried pushing the axle from an old I-Waver rotor with a hammer but all I achieved was to bind it...
I would like seeing it go at least at stock mini-z speed wich is already fast for something the size of that slotcar :)