Leyton House CG901B

[f40]

Great work

[Macio4ever]

As usual fantastic attention to the details - lovely build. It got me thinking about starting F1 project...

[jaykay640]

So, at long last here’s a new update!
During the little time i had since my last post ( work...real life...) i have been working on more data to get additional parts printed. There were some pretty complicated parts to do like the rear uprights, brakeducts and the exhaust pipes. I finally got another run printed and here are some pictures of them as they arrived:

The exhaust pipes ( 5 pieces each )





The sidepods





They are 0,4mm thick and you still see the support structure i built into them. At first i had them done 0.2mm thick with less support. They got printed o.k.ish but subsequently warped and were just too thin to do further work on them.

Uprights, brakeducts and throttle slides





I then started working with the throttle slides. In the kit they are one part with a rudimentary fuel rail attached ( forgot to take a picture of the original part...sorry ). That’s o.k. if you glue the tray with the velocity stacks on top of them but i want that removable and hence more detail below.
First i wanted to improve the Tamiya part but that was too simplified, so, using Patrick Morgan’s engine pictures i built the data for the visible upper sides of the throttle slides and after separating and thinning the kit parts glued them on top of those. Like this i will have a precise base to position the individual velocity stacks i had made before.





The exhaust pipes in the next picture are just dry fitted. That works very well but the surfaces need a good deal of sanding before i can glue them together and paint. Since the surface of the translucent printed material is quite difficult to judge when sanding i will probably cast them in resin first and then sand.






I then dry fitted the parts on the engine





As you can see i also continued adding previous printed parts to the gearbox and blended them in with styrene bits and filler. A first layer of primer showed surface issues and there are more details to attach.





I also started making metal bits in the meantime. The brass drive shaft parts here are the first ones to show.





Last weekend i took the engine and a few other parts too Goodwood FOS and had a “date” with the real car. I got to take more detail pictures and also a bunch of measurements, so now ( time permitting :-) i have great material for more progress.
In the end the Leyton House, driven by Gary Ward, took fastest time of the weekend! Congratulations to the team of Dawn Treader Performance and thanks for the invaluable help!

[John18d]

Jaykay - saw your Jordan in the 200th issue of the Tamiya magazine - what a tribute - you must be proud - a perfect selection of a model for the 200th edition. It was great to read the article after following your build on this forum. Thank you for sharing your 1/20 scale masterpieces. These parts you are making are amazing - can't wait for Mac to get a 3D printer?? - John

[sportracer02]

Hi,

great stuff, this model will look great close to the Jordan

[f40]

Amazing work . Your casted pieces are beautifully done.

[Aesthetic]

Oh yeah! I am in on this thread :-).
Wonderful work as usual Jaykay!

[Big Kahuna]

I love your work Joachim. I love the technical precision, attention to detail and insight you provide into your builds. Some of the best modelling I have ever seen. This is very inspiring to do my best, otherwise it would be very depressing.......lol!

[gulfclk]

Hi Joachim,

what technique is used to print the parts? STL, DLP, ...

Thanks,

Tom

[da_ashman]

This really is Modeling of the Future!
Perhaps for your next build you should consider an engine on a stand with it half open... imagine the detail you could put into that!

[gulfclk]

Originally Posted by da_ashman

This really is Modeling of the Future!
Perhaps for your next build you should consider an engine on a stand with it half open... imagine the detail you could put into that!

Don't steal my idea ... I'm working on that one. The 3D printer arrived today, so ...

[jaykay640]

Tom, the parts i got made are STL.

And i don't have any plans for opened engines. There are more than enough parts on the outside already :-)

[jaykay640]

Here’s a little more progress.
I started casting some of the printed parts in resin and prepared them for primer. The first ones were the velocity stacks. I had only one left and one right, so i needed duplicates.
On top of that the resin is nicer to sand than the printed material.
Here’s a picture of the real ones.





In typical Tamiya fashion they are one part with the tray on top in the kit. Room for improvement...
Here’s a picture of the parts afetr casting, sanding and a first layer of primer. The fuel rail is the untouched but primed rapid prototype part.
I can’t get to finishing and properly fitting it, before the other parts are in place. The round discs to the right are turned from aluminium. They’ll represent the throttle sliders.





In the next picture the parts are dry mounted on top of the engine.





This was necessary to test if i got the try that sits on top of them as a base for the air horn right when i built the data for all these parts.
First, there’s a shot of the real one again:





...and one of the model part. Looks all right.





I was pretty happy that worked out because building data for parts, that have to fit an environment without proper reference like a 3D-scan is quite tricky.
As you can also see the tray and the other parts are not 100% true to the original but still a big improvement over the kit parts.
The task now is, to make sure the wall thicknesses don’t get too big during paint and CF-decals and they still fit in the end...:-)

[John18d]

jaykay - it is amazing what you can do with a 3D printer and some resin - I am completely in awe at what you can do in 1/20 scale - I am truly stunned - John

[Aesthetic]

Your eye for detail is amazing, truly inspiring!