Sprite Proxy Race 2018 -JT’s Build

Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Tue Oct 31, 2017 8:44 pm

I just received my Slot Car Corner order for the miscellaneous parts I needed to complete my Sprite, so it was time to start building - or at least planning!

I started at SCCs Proxy Part Page, which has links to some of the typical parts needed to finish the kit.

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Tue Oct 31, 2017 9:01 pm

Since I can’t seem to find the adjustable PCS chassis I was planning on using, I figur d I’d use up some of that brass and piano wire I’ve been accumulating.

I grabbed an index card and traced the top and side views of the chassis, paying particular attention to the wheel wells. I established a center line and then worked out where the axle center lines were.

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Then, I turned my attention to motor mount options. It was clear a sidewinder was out...

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The first option was to check to see how a Slot It pod would work.
It didn’t: very close, but those wheels aren’t fitting under the wheelwells. No room for s chassis extension to the rear (I’ve gotten around that on some Cheetahs I built, but...

So, I rummaged around and found a heavy duty BWA motor bracket. More scrounging found some oilier bushings that fit the holes. It good to be a hoarder !

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Back end is shaping up, now to figure out how to deal with the Sprites notoriously tight front end....


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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Tue Oct 31, 2017 9:07 pm

In order to work out some of the front end details, I consulted with some “experts” I had on the shelf...

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby VTECFOUR » Tue Oct 31, 2017 11:57 pm

Aaah, the rat Bugeye #13 that was the inspiration for my scratch building and involvement in co-organizing proxies.

Good to see it and your later Bugeye entries in the 2013 and 2014 Sprite Proxy Races (SPR).

http://www.slotcarillustrated.com/porta ... .php?f=218

I've come a long way, but you were already doing wire and brass builds back then.

Looking forward to seeing your newest build.

Dan
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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Wed Nov 01, 2017 11:49 am

Thanks, Dan. Having the kit parts certainly makes it easier to get started.

(My body has one side panel with a slight tumbledown inward. Is a cup of hot water the preferred way to soften the resin to reshape it?)

Back to that compact Sprite front end. I want to incorporate SCC axle blocks, because a level race car is a good handling car. I had used the axle blocks on my SPX Sprite, so flipped it over for comparison. While the widened SPX Sprite is close to the 1/29 Sprite’s width, the 1/29 front tire’s are much wider than the SPXs narrow ones. As a result, it will be tough to mount the axle blocks and still allow the nearly 180 degree guide rotation I prefer.

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Wed Nov 01, 2017 11:58 am

A few photos of body on wheels. Track will need to be a bit narrower to give some clearance between tire and body.

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Sun Dec 24, 2017 8:47 pm

Figuring out tire dia based on motor mount depth, clearance, and then converting to metric to compare to rules min tire diameter.

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Main rails in place with sketch of planned chassis above.

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JT



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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Sun Dec 24, 2017 9:16 pm

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Lots of wire bending and some hole drilling. Speaking of drilling, I need to pot some lateral hold downs on this jig like I added to my Retro Jig.

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Did a bit more tire work on the Econo-Hudy. (I pulled a Tom Sawyer on my friend Methe, who insisted on showing me how the pros glue and true tires - sorry you got black tire superglue all over your hands Bob, I’m sure it will wear off....eventually.)

JT

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby brainslot » Wed Dec 27, 2017 12:37 pm

Ah JT.....you are turning, tuning up the wick!. I knew if you could hide in the basement for a couple of days you would create something unique and well designed!

Brian :clap:
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Re: Sprite Proxy Race 2018 -JT’s Build

Postby 73emgee » Wed Dec 27, 2017 2:31 pm

WOW!!! :scared-eek:
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Re: Sprite Proxy Race 2018 -JT’s Build

Postby VTECFOUR » Wed Dec 27, 2017 4:37 pm

Whoa, a few bends on that outrigger wire.

Just JT being creative as usual.

Can hardly wait to see the box it comes in!

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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Tue Jan 09, 2018 5:21 am

I’ve been in the basement so long, I’m just catching up to these responses . Thanks.

Yes, some impulsive wire bending, hopefully it’s functional!
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Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Tue Jan 09, 2018 5:25 am

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The rare D-type Sprite.

I am falling in love with balsa wood.

JT
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Re: Sprite Proxy Race 2018 -JT’s Build

Postby JT Previa » Thu Jan 11, 2018 1:10 pm

Drillium to lighten up the brass mass and look cool.

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I need to solder more often than once a year:

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Polished up a bit. Jail door rattle pan doesn’t rattle as much due to some motor interference. Who designed this chassis!?

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JT


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Re: Sprite Proxy Race 2018 -JT’s Build

Postby VTECFOUR » Thu Jan 11, 2018 3:16 pm

Well done on the aero look.

I can envision a paint scheme with scallops if you've got time.

Looking forward to seeing it.

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