1/32 M/T Nova *Finished*

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1/32 M/T Nova *Finished*

Postby HomeRacingWorld » Tue Jul 15, 2014 12:36 pm

Thought I would share a little more on how I go about building a new resin model. Now I am FAR from an expert builder, but perhaps some might be interested.

Everyone has thier own approach. For me, the first part is research if I am not familiar with the car. :techie-studyingbrown: When the body arrives I like to clean it up and make it "chassis ready". In other words I want the body/wheel wells to be VERY close to the final result when it comes time to bolt'er down. I might add an air cleaner, maybe a add or remove a spoiler or wing, etc at a later time. But at this stage I just want the car to be ready for me to start the chassis build.

It is worth mentioning that I am famous for changing my plans midstream. My buddy Locoracer Tom says that if you sand on my finished car, you should see at least 3 colors on top of the primer :) It's true. I'll bet I could a knock a couple 10ths or better on my laptimes on some of my cars, if I just sanded them to remove all that excess paint weight. :scared-eek:

But I am doing better, or at least trying. So like I said above, the body is just cleaned up and ready for the chassis. It is now that I do what the great JYD (Eddie) in Chicago does: "Have coffee with it."

I really am not sure what I will add or take away. Nor am I sure what color combo or decals to use. I just know I want a Nova stocker. So in this form I can sit back and keep looking at it and think about what I want, :techie-eureka: meanwhile have it good enough to start chassis building.

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This is how the model arrives. I also have some nice new wheels for this one.

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To clean out the flash molding I use a variety of tools. Assorted small files in flat, traingular, and round (rat tail). Some 800 grip sandpaper, our variable speed Dremel with sanding barrel, and our good old trusty Exacto knife. Please think about installing a new blade or keep a knife on hand just for this purpose. A fresh, sharp blade makes the trimming much easier.

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Sometimes there is a little more molding OR I want to open the wells a little more. For this I like using my Dremel and sanding barrel. Could you do it by hand? Of course, but we are discussing MY methods and I am quite the lazy craftsman.

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Then I follow that up with some 800 grit to smooth out the edges.

I won't wash the body up just yet as there is a lot of fumbling/handling to come. I'll wait for the bath when it's finally paint time.

More to come (Insomnia? Stay tuned!).
-Harry

"They didn't say you couldn't" - Smokey

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Re: 1/32 M/T Nova WIP

Postby ShotgunDave » Tue Jul 15, 2014 2:29 pm

Haven't started my dang Camaro yet and now I see this! Looks great Boss. Gonna have to get one of these to run with the others. Now we just need a Chevelle. :D
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Re: 1/32 M/T Nova WIP

Postby HomeRacingWorld » Tue Jul 15, 2014 8:05 pm

Sounds good Jeremy. Yes sir Dave, this class needs your skills so it has...class!

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I like this bracket by Professor Motor. Slot Car Corner carries it and I just order from there when I am getting all the other toys I cannot live without. As you can see it has the motor mount holes pre-drilled and has notches cut into the bottom to help you attach the rod/tubing a little easier. Being a newcomer to brass chassis building, I need all the help I can get keeping things straight.

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Here is the brass part sizes/part numbers I am using for my chassis. *PLEASE NOTE* This is not a "pro" level commercial/retro/competition style chassis. I just found a design that suits me and the tracks we race on. I am not using any insane speed demon motors either. Just a simple design that you can get started with, but also one that runs pretty well as is. You can always add to it, take away from it, etc and so forth :)

The two smaller sections on the left are the "frame rails" of the chassis. According to the Pro Motor bracket, you are supposed to used the round rod or tube. I don't. I like the square tubing. But have used round, so either way you go you will get a chassis. The ones on the right are the ones I use for the front axle set up.

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Pretty simple to order/pick out at the hobby shop. You know you have the right ones when they fit inside each other as shown.

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Here is what I use to make the rear axle housing.

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One part that some might object to is my use of the tubing to act as the "bushings". In all the chassis I have built using this method, the axle fit in the tube is about as good as you could ask for. I have tested 4 different major brands of bushings along with different brands of axles. The variance in tolerances between brands is more than you might think. Even axles of the same brand are rarely exact from axle to axle. Same is said for bushing inside diameter tolerances. So using this tube method works just as well as any bushing method I have tested.

The other reason I like using it is to simplify the build. When I have used bushings, I need to cut this same size tubing to make the "shims" to set the width and eliminate side to side free-play. WHY? Because this motor bracket, as much as I like it, does not allow the for a standard motor shaft to sit far enough inside the flange of the crown gear. It just barely makes contact which is not going to work when raced in anger. If I do not take the time to measure and cut the tubing, I could use axle collars. These also work but we just added even more cost to the project.

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This is the strip I have been using for the body mounts and guide tongue. For the guide you could and likely should use a thicker material, but it works well enough. And it can be braced if needed.

Now time to get started building it. :dance:
-Harry

"They didn't say you couldn't" - Smokey

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Re: 1/32 M/T Nova WIP

Postby dge467 » Tue Jul 15, 2014 8:09 pm

Looks like a great car in the making!
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Re: 1/32 M/T Nova WIP

Postby ShotgunDave » Tue Jul 15, 2014 8:49 pm

Another fine chassis in the making Boss!
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Re: 1/32 M/T Nova WIP

Postby ShotgunDave » Tue Jul 15, 2014 9:23 pm

Ha! Artwork? Marty, yes. Mine, no way!
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Re: 1/32 M/T Nova WIP

Postby dreinecke » Wed Jul 16, 2014 5:21 am

Another fine tutorial! Where did you find my picture?
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Re: 1/32 M/T Nova WIP

Postby ListerStormGT » Wed Jul 16, 2014 7:11 am

Great tutorial Boss, great picture of Doc you found. Must have been one of his good hair days. :lol:
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Re: 1/32 M/T Nova WIP

Postby HomeRacingWorld » Wed Jul 16, 2014 7:05 pm

Thanks guys, getting a good shot of Doc is not that easy.

Well, onto more fun.

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Time to measure and cut my first pair of frame rails. As you can see this is not that critical of a job. I basically set the car on my cutting mat and get a good idea how long I want it. In this case I needed about 2 & 3/4's.

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Everyone has their own method of soldering. In fact, I am pretty sure it's slot car law that no one can own the same soldering iron or solder a chassis in the same method as another.

My appraoch is to first clean up the brass using some 800 grit sandpaper. This de-burrs the edges and gets the brass pretty clean so the solder will flow easier.

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Here is my high tech method. And you thought slot car magnets were evil. As you can see I was a little heavy-handed with the solder. I don't care. I am not here to win any awards, so not worried that it looks rough.

I do not use an iron either. I like a torch. I use 60/40 solder and just a touch of flux to make sure it's clean. Is this the "proper" way? Well, it works for me.

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When finished I flip the bracket over and check to see how the solder flowed. Usually I see what you are seeing. This is about as good as it gets in my book.

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You can clean up the excess solder and make it look better using a file or sandpaper. I just like using an old fashioned flat blade file.

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Looks good enough for me.

Ok, time to get back to work Shotgun Dave is working on his Camaro and I have to try and keep up. :lol:
-Harry

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Re: 1/32 M/T Nova WIP

Postby dreinecke » Wed Jul 16, 2014 10:06 pm

Dang that looks like a nice chassis. I can't wait to start building again. I really need to learn brass.
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Re: 1/32 M/T Nova WIP

Postby sixtiesracer » Thu Jul 17, 2014 11:16 am

HomeRacingWorld wrote:Thanks. But it's nothing compared to the artwork Marty and you create. Just a NOOB design brought to you by:
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:)
Is the name pronounced, Eyegor?? :lol: :lol:
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Re: 1/32 M/T Nova WIP

Postby HomeRacingWorld » Sat Jul 19, 2014 7:34 pm

Thanks guys. Now I know you all are waiting, so please calm down and take your seats.

Onto our bracket.

Regardless what you might hear, if you are going to do the tube bushing method, you WILL need to ream out the rear openings a little. The best tool I found is the 3/16 chainshaw sharpening stone by Dremel.

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Using a pin vise, I lightly twist the stone inside. You do NOT need to remove a lot of material. Just a few thousandths to allow the stock K&S 3/16 tube to slide in easily.

Now the rest of the chassis.

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Nothing fancy or elaborate. Just a simple design that works for me. NOT a record breaking competition chassis by any means.

I showed the wheels and tires in another post, but they are what I am using here so I will show them again.

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This nice, big tire fits the 15x11 just how I want it.

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These are the wheel inserts I am using. These are also found on the MT Racing site. HERE

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Just a test fit...but getting closer :)
-Harry

"They didn't say you couldn't" - Smokey

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Re: 1/32 M/T Nova WIP

Postby ListerStormGT » Sat Jul 19, 2014 8:14 pm

Very cool boss, coming along nicely.Cant wait to see it finished!
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Re: 1/32 M/T Nova WIP

Postby ourwayband » Sat Jul 19, 2014 8:44 pm

Dang that looks good Boss!!!!

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Re: 1/32 M/T Nova WIP

Postby ShotgunDave » Sat Jul 19, 2014 10:01 pm

Yes Sir! Like that a lot! That looks mean as hell don't it?
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