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Mounting an X12 strap can in GT12 chassis


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#1 gc4895

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Posted 21 December 2016 - 12:50 PM

We run a monthly X-12 arm with the set-up of your choice/any chassis/any body (though no wing cars) race program.  Track is a swoopy blue king.  Just for fun I built a strap can x-12 motor and I'm planning on tucking it into a GT12 chassis.

 

Since I have almost no experience with strap can motors, my question is if I should be trying to mount the armature/pinion shaft at the same height as the axle/spur gear.  Obviously, a strap can is less tall than the C can motor this chassis was designed for.  Should I be concerned about the strap can motor sitting lower in the motor box and engaging the spur gear below the level of the axle?  Clearly I want the motor lower to take advantage of the lower mass placement in the chassis but not if I can't reliably mesh the gears. 

 

I'm just trying to set this up thoughtfully with good gear mesh and reliability of the set up in mind. 

 

Any experience or advice to relate?

 

Thanks! 


Mark Bauer




#2 MSwiss

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Posted 21 December 2016 - 01:05 PM

Mount it low.

Make sure it's securely soldered in at least two points.

Use an angled pinion if possible and 64P gears will be more reliable than 72P.
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#3 Ramcatlarry

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Posted 21 December 2016 - 01:07 PM

Sidewinder and anglewinder motors are rarely set centerline of motor to centerline of axle as we try to do with an INLINE installation.  It IS good to get the shafts on the same parralell plane so that the gears do not mesh on a twisted angle.  We used to run into the same situation when Proslot made the strap 12 the motor du jur for what used to be 'C-2' or GT-1/B-production in todays terms.  The lower center of gravity did help as the use of the FX motor does.


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#4 gc4895

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Posted 22 December 2016 - 10:20 AM

Thank you for the tips! Playing with this it is going to be very simple to "mate-up" the gears. Really had fun putting the strap together. Got the old magnet hone out and put this together like I used to obsess over wing car motors. Motor building is great fun IF you have time and the patience for it.
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Mark Bauer

#5 gotboostedvr6

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Posted 24 February 2017 - 02:45 PM

Mark,

 

Any updates with your 12 racing?

I agree with Swiss about 64p gears.

 

Dave


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