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BMW M3 E30 DTM 1/12 Scratchbuild/Conversion


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Hi,here are the first pics from my latest scratchbuild/conversion project.
I want to create a BMW M3 touring car.The car won lots of champions ships all over the world.
Here are the first steps to make the mold of it.

 

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Lots of changes to the master.

 

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On the inside i made lots of sanding.

 

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The base plate for the body.

 

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Looks fine.

 

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The wooden frame to hold the silicon.

 

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Put together and hold with stripes in place.


bmw-m3_0008h7kyk.jpg

 

The master was brushed with a thin coat of silicone to prevent it from airbubbles.

 

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Outer frame sits into the place.Ready for casting.

 

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The hole for fill in.

 

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Mold is filled with 3,5kg silicone.

 

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After one night its ready for molding.The inside looks fine.

 

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The block for the inner core.

 

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Ready for casting with quick setting-resin.

 

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Casted and ready for some sanding.

 

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The frame was rebuilded for molding the silicone.

 

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Some cleaning is necessary,but the molds looks good.

 

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And here are the result.


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The first castings looks very good.Only some smaller bubbles at the front.But i try to prevent them with a different filling of the mold.
I do my best.
Next step are the wheels/rims.

Thanks
Christian

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  • 2 weeks later...

Next step are the two different mirros.

 

bmw-m3_0032e4ui7.jpg

 

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Thats the late version.The rear wing was also different,but can be changed from hand i think.

 

bmw-m3_00357uue3.jpg

 

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Now the first version.

 

bmw-m3_00370yu8f.jpg

 

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Rims with nuts and the dashboard.

 

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4 different versions of the steering wheel.The one i choose are the one i designed from two different ones.

regards
Christian

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  • 1 month later...

It's 1/12th

 

It's a 1/12th BMW

 

It's a 1/12th BMW E30

 

It's a 1/12th BMW E30 M3

 

It's a 1/12th BMW E30 M3 DTM

 

That is sweet music to my ears. . . keep your Jaguars and Ferrari's, for me if there could only be one racing car in the world it would be this one.

 

What livery are you going with (so many to choose from..) ?

 

 

Edited by Séan Pádraig
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  • 1 month later...

Thanks guys,missed your posts.

Sorry!

Which livery?

I think there are many possible.My buddy Michael could make every livery you want.For sure.

 

I will go for a factory car and maybe the Fina from Johnny Cecotto.

Now the printed parts arrived from shapeways.
Many thanks to Torsten who made the design for me.

 

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The rollcage fits perfect into the body.Too good.
When the body and the floor is assembled its too tight.Need to cut it and glue it together.But first when the chassis is done.
Created the inner structure and sanded it a bit.Now the structure is done and need to fill the holes all around for casting.
The "Fina" wheels are also printed.But i miss the outer rim ring.So i made one from an old Tamiya rim and sanded it up to 2mm.
Some glue on it and the rim was ready.
More to come soon.

regards Christian

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Final version of the rims are ready for casting.
I changed the width of the tires a bit.Now its all fine.

 

bmw-m3_0050kdsf5.jpg

 

bmw-m3_005131sil.jpg

 

The next step is finish the chassis master for making the mold.
Thats the final part of the model making.

regards Christian

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Some parts are primed to test it.

 

bmw-m3_0056cpuka.jpg

 

bmw-m3_0057b5u1i.jpg

 

The chassis with rear trunk cover is done.

 

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Some fitting test with the BBS style rims.

 

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Overall i think its ok so.Some thinning in the wheel arches can be made maybe.
But the look is ok,i think.
Tomorrow i will test the Fina wheels,but they should fit the same.
Than i cut the roll cage to fit it into the car.
Thats the last step,i hope.
regards
Christian

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Thanks that somebody leaves a comment here.

Many thanks Roger!

 

In the meantime i found some time to create the cage.

 

bmw-m3_00615hudo.jpg

 

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It looks fine for me.Only the "X" behind the driver seat is a bit out of shape.But dosent matters to me.It cant be seen once the body is on.
Now i hope the my CAD constructor could create a new cage out of my data.
regards Christian

 

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Today i put the M3 on the other wheels.Looks fine.

 

bmw-m3_0064ftuwy.jpg

 

bmw-m3_0065nmufc.jpg

 

Dashboard was installed and also the steering wheel.Works.

 

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The rear wing was put in place with two pins and the exhaust was created.

 

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For the exhaust i used a piece of "Ureol" and sanded it in shape.
Than i took two pipes plastic and made the angle with some heat.
On top i put two "Aderendhülsen" (some electrical stuff in different sizes) as the exhaust pipes.
Simple sanded it with a different angle and thats it.
Now i have to cast the exhaust in resin and put two "Aderendhülsen" into the kit.

regards
Christian

 

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Hi,today i watched the classic race from the old DTM at the Norisring.
Great to see those old racers again.
So here is my version of the BMW M3.

 

bmw-m3_00730bl8r.jpg

 

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I used some small tiny drops of glue to put all the parts together.
On the first pics are the BBS style wheels and later there are the FINA wheels to see.I will offer two versions.
Different wheels and different mirrors. Thats all.

I had to cut some resin at the dashboard to fit the roll cage to the chassis.Its nothing big,but have to be done.
I will offer the kit without the roll cage.He can be printed at shapeways or scratchbuild with a template.
This week i should receive the first two different decals sets.They should fit perfect because he got a resin body for test fit.
Now i have to cast some more parts and ,hopefully,sell some of them.

regards Christian

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  • 3 weeks later...

Some small progress on the M3.
The roll cage version 2 is uploaded to shapeways and in production.

 

bmw-m3_0120iau8p.jpg


A new version of the wheel/tire combination is also designed.Thanks Torsten!

 

bmw-m3_0121uuubs.jpg

 

The old one got a wrong diameter.The new ones where round about 5mm bigger.Thats quiet a lot.
A M3 fan told me that my wheels are complete wrong and he was right.
The BBS versions also wrong.They are in the making.

 

bmw-m3_0122i5uk3.jpg

 

In the meantime my two decal versions are ready.I think they look very good.
regards
Christian

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The new EVO tires arrived today.
Looking much better than before.

 

bmw-m3_0123nquqg.jpg

 

bmw-m3_012430u1i.jpg

 

before....

 

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after.Thats how a race tire should look like.

 

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At the back i have to sand it a bit.

 

bmw-m3_0128u5uai.jpg

 

The final roll cage version is printed.Looking good and should fit fine.

regards Christian

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  • 3 weeks later...

Finaly some new pics with the corrected tires and some white primer on.

bmw-m3_0156x4jya.jpg

bmw-m3_0157b5jav.jpg

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In white it looks quiet good.I hope the primer is thick enough to use it after smooth sanding for the base color with any new layers.
Should work,i hope.

In the meantime i offer this Evo kit for 140€ in the forums i am on or for 150€ at ebay.
Just leave me a message if you are interested in a kit.

regards Christian

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  • 2 weeks later...

Great work on the mould boxes and congrats on your first casting, they look superb. The rest of the parts are looking good, especially the wheels and roll cage.

 

Colin

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  • 2 weeks later...

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