Leyton House CG901B

Hi everyone, here’s the start of a new WIP. I have been playing around with several projects since finishing my Jordan 191 and now i finally have something to show.
This is the 1:20 scale Leyton House March CG901B by Tamiya that most of you will know or even have.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/001wCG901Bsketch.jpg


For a long time i wasn’t really interested in this kit because the car wasn’t that successful ( well, compared to the Ferraris, McLarens and Williams of the time ) and the kit has been OOP for quite a while and has become a collectible of sorts.
My indifference was changed in 2009 however, when i saw the real thing at Goodwood, freshly after being restored by http://www.dtperformanceltd.co.uk
Compared to other cars of the time this one looks even more delicate and sleek ( and I really like some of those other cars for their looks ) There are various small bits and pieces on the CG901B that look more sophisticated than the competition. It’s a bit like looking at Bugattis or Millers compared to their contemporaries. Granted, that didn’t make the 901B a winner but i think you can almost see it’s a Newey car. You can read more about the real thing in Gurneyflap’s focus here: http://www.gurneyflap.com/leytonhousecg901.html

The kit is a typical Tamiya effort of the time. Not sensational compared to current kits but a good base to start with. In many ways it’s the Jordan all over again. Originally i wanted to build something different after the Jordan but i changed my mind.
I wanted to try out some new techniques and the Leyton House ( and many of it’s afforementioned “sophisticated bits” ) are a very good test bed for it. I will get to that a little later :-)
At Goodwood i managed to get a good bunch of pictures of the beautifully restored car that i will use for reference and show here along with the build pictures. Despite all my picture taking i later found out that i had missed some details ( as always...). But Patrick Morgan, the owner of dtperformance, kindly helped me out with some additional pictures, so my special thanks go to him!

I started the build like i did with the Jordan. I sketch glued most of the parts together to make a jig for the suspension setup and to see which parts would need modifications and what would need to be replaced or scratchbuilt because it was missing entirely.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/002wkitpartsmockeduponjig.jpg


When the nosecone and top hatch are removed they reveal.....nothing :-) Same thing as with the Jordan. There will be some scratch building necessary.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/003wkitfrontend.jpg


The engine bay will aslo need a lot of work. Many parts have been simplified or aren’t in the kit at all.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/004wkitrearsuspensiondryassembled.jpg


There’s one big oddity with the kit. When the engin cowling is mounted it overlaps the driver’s seat massively. In reality this would literally break his neck. It looks like Tamiya was rather generous with that gap to make sure the cowling would fit on the finished build. I’ll have to change that.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/005wcowlingoverlap.jpg


I got started with the monocoque. Before putting the halves together there are some things to do. The molded in fuel filler is a bit of a joke.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/006wkitfuelfiller.jpg


The real one is “slightly” more detailed :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/007wrealfuelfiller.jpg


To replicate that i filed a hole in the monocoque and drilled 0,3mm holes for the surrounding bolts using a template i photoetched.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/008wfuelfillerholeopened.jpg


I also closed various holes for locator pins and the front suspension. Some of these won’t be needed or they should be smaller or shaped differently.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/009wsuspensionholesclosed.jpg


So, these are the first steps. I’m slowly but surely getting into this build. Progress will be slow as always but i’m aiming to make it at least steady :-)
Thanks for watching!

I already posted a comment over at F1M, but I'm still very excited to see your progress, good luck! :D

When you see the author name you know it's party time again, just sit tight and waiting to be shocked again.:cheers:

I cant wait to follow this one Joachim! Your sketch is fantastic!

definitely will be watching this one, superb sketch..i thought it was some artist's sketch, until Mike mention it only i realize your signature is in the sketch :lol:

Straight into my favorites!!!!!

When you see the author name you know it's party time again, just sit tight and waiting to be shocked again.:cheers:

Oh yes, welcome back Master... :iceslolan

I am ready for another update now! Hurry up, Joachim!

JK, congrats on your Icon online contest win!

Looking forward to this build, as I don't thinkI've ever seen a detailed 901B out there.

There is a CG901B near me if you need a specific part photographed....let me know.

Awesome, Your Jordon Build was jaw dropping, cant wait to see what you do with this one!!

Ah, the start of another master build. I can't wait to see you "new techniques". Very nice sketch too. I'm always curious about what you do professionally. An F1 engineer?

JK, congrats on your Icon online contest win!

Looking forward to this build, as I don't thinkI've ever seen a detailed 901B out there.

There is a CG901B near me if you need a specific part photographed....let me know.

Thanks! For the moment it looks like i'm fine with reference but i'll remember it :-)

Ah, the start of another master build. I can't wait to see you "new techniques". Very nice sketch too. I'm always curious about what you do professionally. An F1 engineer?

Nope..designer...road car interiors :-)

I am ready for another update now! Hurry up, Joachim!

Well..... here we go :-)

Since we’ve had a long weekend in Germany i was able to make some progress and here’s another update already…just don’t get used to it :-)

The next step was, to open the holes for the front pushrods in the monocoque. Tamiya didn’t bother to do the ones in the top surfaces, because that would have made the injection mold too complicated. I etched another template, fixed it with a drop of superglue and then opened the holes one after another.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/010wtemplateforfrontpushrodhole.jpg


Here’s a picture of the real car for comparison. Unfortunately one of my holes turned out a bit big. I’ll have to fix that later.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/011wrealfrontsuspensionholes.jpg


I cleaned the surface areas on the insides of the monocoque halves that will be visible after assembly and added a styrene ring around the big bulge for the shifting hand in the right hand side like on the real car.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/012wmonocoquehalvescleanedinside.jpg


Then i finally glued the parts together and started cleaning the seams up. The surfaces needed some thorough filing and sanding to straighten them out. You can see what i mean in the next picture... it’s an old mold :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/013wmonocoquesurfacecleanup.jpg


On top of the sidepods i added some body filler to correct the shape.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/014wmonocoqueseamcleanedup.jpg


At this point it’s time to get to one of the “new techniques” i mentioned in the first post. For a long time i’ve been wanting to try out doing parts for models in CAD. The problem was, i had to learn the software first. I’d been meaning to do that for years, because i kinda need it for my job as well :-) Earlier this year i finally sat down and started learning. To motivate myself i built parts for modeling projects to practice. Hence i spent my modeling time at work in the evenings and didn’t have much to show for a WIP thread until now.
A couple of weeks ago i finally got my first batch of parts for the Leyton House and could get started with building ( the other projects i worked on will follow later ).


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/015wrapidprototypingparts1stbatch.jpg


I got these parts done by shapeways.com in their “frosted ultra detail” material. They introduced it earlier this year and it’s about o.k. for the tiny details i wanna do. From looking at the surface quality i’d say it’s better than what Hiro’s machine can do :-)
The technology could do even finer stuff afaik but that would increase production time and the price. For what you get, the price is reasonable and it means, it’s not necessary to buy your own CNC mill ( unless you want to make metal parts that is :-)
Anyway, i designed a variety of parts to test what’s feasible to produce and pushed the limits in terms of detail and material thicknesses. In some cases the parts look very good, in others i was too ambitious. The technology opens a whole new can of worms though and helps to build really nerdy stuff that would be very difficult or even impossible to do by hand or with manual machines.

The first part to go on the model was the top insert in the front end of the monocoque. I had to shorten the part a bit to make it fit, but overall it came out pretty well. I sanded the surfaces slightly to remove the typical stepping in the surfaces, which worked fine with that material.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/016wprintednoseinsert.jpg


In the next picture the part is in its place and you can also see the left hand side holes i made for the front pushrod. The one in the side had to be repositioned because Tamiya put it a bit off its real place due to the material thickness of the injection molded piece.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/017wsuspensionholesdrilled.jpg


For the front bulkead i used 1mm styrene sheet and drilled the holes using another etched template. Doing that part in CAD and getting it printed wouldn’t have worked well, because the inner surfaces of the kit parts were asymmetric and it would have been tricky to get the bulkhead sit right.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/018wfrontbulkeadwithdrillingtemplate.jpg


Finally, here’s a picture of the whole monocoque as it is right now.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/019wmonocoqueoverview.jpg


There’s more to do on it, but that update will take longer :-)

Mmmm fantastic like ever, one step forward .... 100% Jayjuice... (maybe I spent this gag yet? maybe.. :D )

first: amazing, the etched template to drill/cut is simply amazing, great idea, genius...
second: great to see others on the "custom modeling" with better result, perhaps...

I recorded your supply service for prototypes, looks like it is much cheaper than mine, but I have to do right calculation... I browsed the price list and looks like they may do metal protypes? I must try them and do a comparo with my usual source....

In one word... Jay: can you use parts without light sand 'em?

ciao super

gio

Yes they do metal parts. They look nice but i don't think they are fine enough for parts in this scale.
You could probably use the "frosted ultra detail ( or FUD )" parts without sanding and just prime and paint them but with some sanding the result should be better. I haven't tried yet but it depends on how much paint you put on top. Parts that will be painted with several layers or covered with CF decals won't need sanding i think. Tiny detail parts that will get a metal paint shade are a different story. That's where i need to experiment and see if 3D-printing is the right solution ( yet ).

oh boy, here we go again, wheres the popcorn :)

Awesome stuff.

Good to see another stunning project by Jaykay.

Great work Jaykay, I'll be following your build.

Cheers,
Lee

What software did you use to make the 3D drawing?? Rhinoceros?? Catia?? or any other easier to use?

What software did you use to make the 3D drawing?? Rhinoceros?? Catia?? or any other easier to use?

No, Alias Autostudio. It's overly complicated for what i did as far as i know, but that's what i use at work:-)

I had only little time for modeling the last couple of weeks but here’s an update of what i managed to to.
I carried on with the monocoque, detailing the rear wall. I added a piece of 1mm styrene sheet and carved a deepening that will later house a fuel pump.
A picture of the real thing can be seen here (http://www.dtperformanceltd.co.uk/LH5.jpg) at dtperformance’s website, and here’s a picture of the modified model part:


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/020wmonocoquereardetailing.jpg


The roll hoop did get a mod with very little bits of styrene at the inner corners, to make it look like the real one...


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/021wrealrollhoop.jpg


... and at the front of the tank section i added some styrene behind the seat.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/022wrollhoopfrontmods.jpg


On the kit that’s part of the seat. I will change that because it would make painting and assembly complicated and the seat needs some serious changes anyway.

I also started working on the nosecone. Here’s a picture of the kit part dry assembled with the front wing.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/023wkitfrontwingrear.jpg


This needed changes to look like the real one....


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/024wrealnoseconeback.jpg


... and to make it removable. Like on the Jordan i added a photoetched piece after carving out and cleaning the nosecone on the inside.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/025wnoseconerearend.jpg


There’s more to be done later on that part :-)

For the cover on top of the nose i had sanded the kit piece down to 0,3mm on the Jordan. As a result though, the part got brittle and broke during polishing.
So this time i tried something different. I pulled some heated 0,3mm styrene sheet over the cleaned up kit part ( poor man’s vac forming :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/026wvacformednosecover.jpg


After cutting and sanding that part to shape it now fits the opening, but it is too thin. However after painting and decaling with CF decals it should fit and sit level with the monocoque.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/027wnoseconeattached.jpg


As you can see the nosecone didn’t fit the monocoque. I had to make it, using polyester putty and a good deal of sanding :-)
So much for that. See you back for the next update!

Awesome!!!! Here we go again!!! Subscribe??? You better believe it!

Rob

Great work, man! I love following your builds because your attention to detail is remarkable. I can't wait to see more. Maybe I'll build an F1 one day!

Craftmanship at the top, no other words at the moment...

Robi :)

Jaykay - looks like another one of your master-pieces in progress - I will definitely follow your craft and skills - John

Craftmanship at the top, no other words at the moment...

Robi :)

Exactly my thoughts!

Amazing work, but then we expect that from the you now!!


Tom Tanner/Scale Designs/Ferrari Expo 2012-Chicago March 2012

My!

Speechless!!!!

Looks like the beginnings of another monumental build by JayKay! Subscribed!

great, great, great

3D-printing is definitly the future for high tech modelling.
Mayby also take a look here: i.materialise.com (http://i.materialise.com)
It's a sub-division of the company I work for (http://materialise.com), i'm sure we are more than happy to help you out with design problems, fixing stl. files etc....

keep up the good work......

(just for the record, it's not my intention to promote my company but to promote 3D-printing)

It’s been a while again and i haven’t made a lot of progress due to other obligations, but here’s an update anyway... just to show this build is still going :-)
Among other things i worked on the car’s undertray/floor. Here’s the rear end “straight from the sprue”.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/028wkitdiffusor.jpg


For a start the kit part needed some sanding to straighten the surfaces and get rid of some holes and sink marks. I then spent a good deal of time on the annoying but necessary job of thinning the material where it’s visible, to give the part a more realistic look. Here’s the diffusor before thinning:


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/029wkitdiffusorthickness.jpg


... the real one for comparison...


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/030wrealdiffusor.jpg


...and finally the kit diffusor after a lot of sanding and filing.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/031wdiffusorthinned.jpg


As you can see, it still doesn’t look as thin as the real one, but that’s as far as i will go for the moment ( about 0,35mm ). Otherwise the thinned areas will break almost for sure during further work on the undertray.
You may also notice there’s an extra metal part bolted to the real diffusor from the rear. That’s a gurney flap if i’m not mistaken. Tamiya simply incorporated it in the undertray but i will make an extra etched part for it, so i filed it off. There will be a good deal more to do on the undertray...

I also carried on working on the monocoque/cockpit area. The kit seat is typical Tamyia business. However, just sanding off the molded-in seatbelts wasn’t going to do because this seat was only a rough representation of the real cockpit.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/032wkitseat.jpg


The CG901B doesn’t have an extra seat that can be taken out like it’s standard these days in F1. Instead the drivers sat right in the tub with just a personal sheet of padding. This shot of the real car may give you an impression.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/033wrealseat.jpg


The kit seat placed in the cockpit didn’t look satisfying in comparison.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/034wkitcockpitrightside.jpg



http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/035wkitcockpitleftside.jpg


So i used the backrest area as a starting point and built a new one using sheet styrene and putty.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/036wmodifiedseat.jpg


It will probably need some more work after a first layer of primer.
While working on it, it turned out that the cockpit walls in the monocoque also needed modifying.
There was a gap visible, where the undertray and monocoque come together that doesn’t exist on the real car. To hide it, i added 0,25mm sheet styrene on the lower sidewalls and blended it in with putty.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/037wcockpitwallsmodified.jpg


Like this the gap should be easier to hide when i finally glue the seat inside the monocoque.
Further modifications with styrene and putty were necessary in the upper cockpit areas around the seat. Here it is in place:


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/038wcockpitandseatmodified.jpg



http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/039wcockpitfloor.jpg


I have stayed in contact with Patrick Morgan, asking about details of his CG901B, and recently he had the car out again in the workshop. So he offered to take additional pictures of things i didn’t have covered already. Reference material doesn’t get much better than that :-) I got to make a wishlist of pictures and he even took some measurements for me! I will show some of those pictures in the build report. This next picture is one he took earlier during the restoration of the car though.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/040wmonocoquecutout.jpg


It shows an indentation in the right side of the monocoque that houses an oil/water heat exchanger. Tamiya didn’t incorporate that feature in the kit monocoque and instead the heat exchanger is supposed to go below the right side exhaust pipes. Even though it will hardly be visible in the end, i wanted that to be right on my build, so i modified the monocoque with sheet styrene.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/041wcutoutonkitmonocoque.jpg



Finally i also started to work on the engine and gearbox. Once more here’s a picture of the engine parts dry assembled as they came in the kit.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/042wkitengine.jpg


I cut off the rear wing supports, glued the main parts together and then started cleaning the surfaces up and straightening them. That’s not the biggest fun on these small areas but necessary.
Then i started adding the first of my 3D-printed parts ( suspension pickup points and end of gearbox ) and adding/improving other details. I want to get this right and do it cleanly... but it takes time :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/043wbeginningenginemods.jpg


There’s more to come, but for the moment that’s it. Here’s one final picture with the main parts put together.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/044woverview.jpg


Still a looong way to go :-)

Wonderful and great work Jaykay. Just bought your fantastic build of the Jordan from Modelers. Like this one it is very inspirational. I'm planning on building the McLaren MP 4/8. I will try to set the goals like your fantastic build. Except for the milling and PE (don't have a lathe and materials), but luckily there's a lot of aftermarket stuff on the market. Keep up this educational builds, I'm learning a lot.

Eric

Stunning work as per usual!!!

Subscribed!

excellent work, detailed, photos and explanation. Wip like this is very thanked.
A greeting

Nice!!! I love you man:) Your building is great a pleasure to watch and not short on inspiration. Thanks for sharing

Hi Jaykay,

Out of curiosity, what kind of rule of thumb do you apply for compensating for decal and clear coat thickness to the final assembly? The tolerances of your scratchbuilt pieces are beautifully precise, but I wonder how much adjusting you have to do after paint and clear?

Really, really nice work. Your build threads are hypnotic..

Cheers!

AWESOME!!
Wow! your work is really inspiring, I really want to go back to plastic

Suscribed!

Out of curiosity, what kind of rule of thumb do you apply for compensating for decal and clear coat thickness to the final assembly? The tolerances of your scratchbuilt pieces are beautifully precise, but I wonder how much adjusting you have to do after paint and clear?


I'm not working precisely enough to give you accurate measurements but i try to take paint thicknesses into account :-) Same goes for glue.
I'd say a rule of thumb for a clearcoated part is 0,2mm and for CF decals an additional 0.1mm. I try to design the parts breakdown so that i can still adjust the fit during final assembly.
I had some surprising problems on the Jordan and i try to improve that on this build by leaving bigger tolerances.

this buildup remains one of the nicest one I've ever seen in my life.

I pulled some heated 0,3mm styrene sheet over the cleaned up kit part ( poor man’s vac forming :-)


hey. how do you do when you heat styrene sheets, this works on thicker sheets as well? I must also say how amazing it is to see you really are good at building and modifying kits. if I can do half as good as you, I'm very happy:)

jaykay - did you use any special tools for thinning the undertray? did you use a "block" under the sand paper? or did you sand it with a machine? Thanks - John

Any progress or updates on this one? It has been very enjoyable to watch so far! :smile:

this buildup remains one of the nicest one I've ever seen in my life.

lovegt40 - I like your sense of humor - like the way that they leaned that ship over - good thing they didn't high-side it- John

wow. an awesome build, and with reference pics by request, straight from the source. sweet!

Great work

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

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 )


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/045w-printed-exhaust-parts.jpg


The sidepods


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/046w-printed-sidepods.jpg


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


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/047w-printed-uprights-and-b.jpg


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.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/048w-throttle-slides-modifi.jpg


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.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/049w-printed-exhaust-pipes-.jpg



I then dry fitted the parts on the engine


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/050w-engine-with-first-prin.jpg


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.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/051w-engine-with-first-prin.jpg


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


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/052w-engine-with-first-prin.jpg


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!

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

Hi,

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

Amazing work . Your casted pieces are beautifully done.

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

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.....:rolleyes::uhoh:..lol!:)

Hi Joachim,

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

Thanks,

Tom

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!

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 ...

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 :-)

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.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/053wrealvelocitystacks.jpg


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.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/054winductionpartsprimed.jpg


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


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/055wvelocitystacksdryfitted.jpg


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:


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/056wrealinductiontray.jpg


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


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/057winductiontraydryfitted.jpg


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...:-)

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

Your eye for detail is amazing, truly inspiring!