Wobble Posted May 6, 2018 Report Share Posted May 6, 2018 My wife thinks I'm a mad scientist but I am booked in for a hair cut next Friday. Anyway I designed and built this little machine to see if I can run tyres in being as I don't have a track. We had open Group 5 the other night and I got this Slotwings Ferrari out to prep if for the nights racing as it hasn't had much use since it ran in the Group 5 proxy a couple of years ago. At 99gm I thought it was too heavy so I removed some ballast and re-trued the rear tyres and took it to race. It went well so I thought I might start preparing it for the next Group 5 proxy but how could I run the tyres in? Well, this might just do it and it's running on an old 3v cell phone charger and I'm hoping that it might polish the tyres a bit without resorting to any chemicals. Look and laugh. Quote Link to comment Share on other sites More sharing options...
GRUNZ Posted May 6, 2018 Report Share Posted May 6, 2018 Good lateral thinking. Actually, you just gave me an idea how I could check RPM at the wheel... Quote Cheers G "I am an expert at the top of my field when mowing the lawn". Link to comment Share on other sites More sharing options...
mattcrackers Posted May 7, 2018 Report Share Posted May 7, 2018 Nice, if it works it can't be a bad idea. Quote Link to comment Share on other sites More sharing options...
sdeamon Posted May 9, 2018 Report Share Posted May 9, 2018 what is the white tube under the wheels Quote Link to comment Share on other sites More sharing options...
Wobble Posted May 9, 2018 Author Report Share Posted May 9, 2018 what is the white tube under the wheels It's just a bit of styrene tube I think. It was just something in the rack. Quote Link to comment Share on other sites More sharing options...
Tim R Posted May 9, 2018 Report Share Posted May 9, 2018 Excuse my ignorance, im fairly new to slot car racing, i race with mjk tyres as per my class rules, i glue and true them but not heard of "running in" tyres, what does this achieve? Quote Link to comment Share on other sites More sharing options...
mattcrackers Posted May 9, 2018 Report Share Posted May 9, 2018 (edited) Pretty sure it means exactly what your doing already Tim R. If you glue and true your tyres then your pretty much there. But having said that I usually run a new motor in, that is give it a good run before racing it. But sometimes as Bram has said a car that has been sitting needs a run to get it up to speed. Edited May 9, 2018 by mattcrackers Quote Link to comment Share on other sites More sharing options...
Tim R Posted May 9, 2018 Report Share Posted May 9, 2018 (edited) Thanks, i run in all my motors and gears in the car, then glue and true the tyres. All my cars sit on my shelf with the rear tyres off the deck so they dont flat spot whilst sitting between races (can be up to 10 weeks between races for some cars). I usually run the car on 3 volts with rear wheels up in the air for a half hour the night before a race to rotate everything and oil and grease where needed then practice/warm up laps before racing starts. Edited May 9, 2018 by Tim R Quote Link to comment Share on other sites More sharing options...
Wobble Posted May 10, 2018 Author Report Share Posted May 10, 2018 Unfortunately or maybe fortunately I think I've found a design flaw with this contraption and it's all to do with the contact patch of the tyres. Being as the tyres usually run on a flat surface the contact patch must be significantly larger than it is running on a piece of thin styrene tube unless the weight is reduced accordingly to compensate. And as we all know flat surfaces are hard to get rotating. eg I had this weirdo teacher at school, Mr Czhernohorsky, who insisted the world rotated. Anyway, I'm going back to my normal truing practice and then running the car for more than a few laps. Quote Link to comment Share on other sites More sharing options...
ZeGas Posted May 10, 2018 Report Share Posted May 10, 2018 What about a slot car treadmill Quote Cheers Grant . Home Track..........Corvette C1 Build..........McLaren M1A Build..........Maserati 300S Build..........Allard J2 Build..........50's Diner..........Iso Griffo A3C 3D Printed Adjustable Chassis..........3D Print Projects If life gives you lemons, take them, free s#!t is cool. Link to comment Share on other sites More sharing options...
Wobble Posted May 10, 2018 Author Report Share Posted May 10, 2018 What about a slot car treadmill Yes Grant, that thought had crossed my mind. I even thought of running a belt sander upside down with a worn belt inside out. Quote Link to comment Share on other sites More sharing options...
David Carter Posted May 10, 2018 Report Share Posted May 10, 2018 I don't think you can beat plenty of laps on the track Quote Holdens rule the rest just drool slot cars are my drug, ATCC/Bathurst proxy host NZ Grp5 proxy host. Link to comment Share on other sites More sharing options...
ZeGas Posted May 10, 2018 Report Share Posted May 10, 2018 If you have a track, which wobble doesn't Quote Cheers Grant . Home Track..........Corvette C1 Build..........McLaren M1A Build..........Maserati 300S Build..........Allard J2 Build..........50's Diner..........Iso Griffo A3C 3D Printed Adjustable Chassis..........3D Print Projects If life gives you lemons, take them, free s#!t is cool. Link to comment Share on other sites More sharing options...
GAS41T Posted May 10, 2018 Report Share Posted May 10, 2018 Well I know of someone that has a doughnut made out of a piece of cupboard melamine... He puts his cars on to polish up the tyres!!! It’s meant to polish up N22’s so I would think Nsr tyres would love it !!! Quote Link to comment Share on other sites More sharing options...
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