Porsche RS61

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Porsche RS61

Postby BARC 1 » Tue Apr 11, 2017 12:04 pm

I am building a Porsche RS61 for the upcoming Porsche/Ford Proxy which I started to share over in the proxy forum. I was not entirely happy with the shells that are available so I decided to build my own master. Inspired by Clive I downloaded some plans and set about to carve the body from a block of balsa.

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Using my Dremel saw I cut out the profiles using the plan templates as a guide. It was then just a case of rounding the corners and getting the lines looking correct from photos of the prototype.

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Added the rear deck

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Sealed the wooden master and painted it in primer. Used an exacto knife to scribe in the lines.

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Since this picture was taken the master had more paint and polishing and I also made the lines a little more crisp. I enlarged the rear radiator openings as well ( sorry no picture)

I built a Lego mold box and the Silicone was poured this morning. I use Smooth On Oomoo 25. It sets up fairly quickly (6 hours) and works well for me, This master is smooth with no severe undercuts and I should be able to pull a lot of resin shells from it. Should be able to have some pictures posted of the first shells tonight.

I am probably going to build multiple chassis for this project in an effort to build a fast car. The car is small though, and even fitting a 130 style motor is really going to be a chore. I may default to the small cans and just give up on building a fast car, and go for trying to build a show car.

Sorry for the multiple post on the same subject , but I believe the build on the proxy forum would end up pretty dispersed by the time I get this done. I will post the final result over there.

This master has gone a little better then I thought, and I am thinking a Ferrari 250 SWB is on the agenda. This is another body that I love and I have not been able to find, so am thinking I may try carving one myself. However I will stay focused on the RS61 until it is completed
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Re: Porsche RS61

Postby BARC 1 » Tue Apr 11, 2017 10:55 pm

And then there were more

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Re: Porsche RS61

Postby Audi1 » Wed Apr 12, 2017 3:04 am

Looking very good, Dan! :text-bravo:

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Re: Porsche RS61

Postby loosewheel » Wed Apr 12, 2017 11:25 pm

I have an old clunky RS61, this makes me envious.
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Re: Porsche RS61

Postby BARC 1 » Tue Apr 18, 2017 7:57 am

Well I got this finished, and I guess it is the most scratchbuilt I have done to date. Chassis is brass with Twin can Minebea power, leaving me room for a full body and interior. Engraving lines can certainly be improved upon when I look at this through the unforgiving eye of the camera. I cast about a dozen shells, so I am thinking there will be more. I may fill the engraving lines and redo them finer on the next one.

Over all I am happy with scale look of this RS60 car when compared to the real one.

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And here it is measured up against a Scalextrics GT 40. It is a small car and the body depth does not leave a lot of room. I don't think you could do a scale version of this using a 130 can. I am going to try and build an inline with a 130 next, and just see how it can be made to fit. The Twin can power is 16 K and about 100gm/cm of torque so is down on power compared to what it will be racing against. An Avant chassis with the orange Long can will do a best lap of 4.4 on my home track. This car will do a 4.6.

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Re: Porsche RS61

Postby munter » Tue Apr 18, 2017 1:16 pm

Love it.....you sure did a brave thing re the body production.
What was it about the factory bodies that put you off? too wide? too high? something else?
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Re: Porsche RS61

Postby munter » Tue Apr 18, 2017 1:17 pm

Great work on the body production.
What was it about factory bodies that put you off? too high, too wide or??
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Re: Porsche RS61

Postby BARC 1 » Tue Apr 18, 2017 2:38 pm

The current production ones I have seen did not seem to scale. They just appeared plump. I believe they are made deeper to house the motor i.e. I doubt the body I made will swallow a 130 type motor. Of course all I have seen are Strombecker and Eldon though. If there is a current resin body available I have not seen it. The resin body I have seen I believe is a copy of the Strombecker car.
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Re: Porsche RS61

Postby munter » Thu Apr 20, 2017 2:10 pm

I agree about them being too chubby.
I was given a lovely old thick lexan body of one and the proportions match your carved piece much more than the Strombecker ones.
I had thought about doing a back pour and remould from it at some stage.
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