Leyton House CG901B

Incredible work Joachim! Keep it up!

Another great model from you JayKay, but long time no progress ........:confused:
We hope you keep it up ;)

I second that! Although not the best performing Newey design, definately in the gorgeous and innovative file for sure. You are doing a fantastic and inspiring job. Nudge nudge...

Amazing. I have no other words

It's been a while since your last update, anything to report or is this another "stillborn" project because I'm intrigued by the 3d printing you've used.

Regards Rick H

WOW...that is so inspiring, do you mind telling me were you had your parts printed ? and is that the maximum quality they offer ?

thanks

daniel
-germany-

Daniel, you have to read the text between the pictures!!! :-)

Well, as mentioned on the first page these parts were printed by Shapeways in their "Frosted Ultra Detail" material. It's they finest they offer but not the finest possible but it came at a reasonable price.
For some of these parts the quality isn't good enough and i've had some variation in the results. I've read that Shapeways farms the manufacturing out to different companies. That would explain it.

I have just sent some revised data to another manufacturer who is convinced he can do better. If this works out as planned i'll have some great parts and can make new/better progress.

I know it's been a long time since my last update but "real" life and my job in particular have prevented significant progress. I have spent a good deal of time cleaning tiny printed parts up ( which is really annoying ) and building/detailing the engine/gearbox and I also machined parts for the shocks but there's some more to do to put an update together.

It could easily be another while but at some point this will go on :-)

thanks for the info...who is the "other" manufacturer, since it's not the cheapest thing to do I'd like to get the best results in the first try. Since I will go 1/12 costs will be high nevertheless.

daniel

Hi everyone

After a long, long time I finally have something new to post. Progress has been glacial during recent months, because I had too much to do at work and in „real“ life.
Nevertheless i did make some progress and am finally at a point to show the first bits of it.

I spent a lot of time on further improving the engine and especially the gear box area. I added bits of styrene and renshape, puttied and slowly chiseled and filed away at the assembly.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/058wenginewithfurthermodificationsrightside.jpg



It’s still nowhere near fully correct but a serious improvement over the kit parts.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/059wenginewithfurthermodificationsleftside.jpg


I went through 3 or 4 thin layers of primer and further sanding sessions in between.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/060wengineprimedrightside.jpg


Inevitably some of the crispness was lost, which made me a bit unhappy, but in the end it won’t be that visible.
Before paint i added the small etched MARCH logo on the left side oft he gearbox. That will hardly be visible as well…but i know it’s there :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/061wengineprimedleftside.jpg


The entire engine was then painted with Zero matt black and after some tedious masking, parts oft he engine block were painted Alclad white aluminium.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/062wenginepaintedrightside.jpg


Smaller details were picked out with a brush. That’s not as precise as I had hoped, but most of those areas will be covered by parts that follow anyway.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/063wenginepaintedrear.jpg


The cam covers are so far untreated. They’ll follow later, when i’m less likely to ruin them again :-)

Now i could finally start adding details. Besides the turned drive shaft bits I previously showed, those are custom made etched parts ( some painted Zero gloss black ) and hex bolts from Scalehardware and T2M.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/064wgearboxwithfirstdetailsleft.jpg


On the right side I also added the gearbox cover, that i painted gloss black. It’s only half as precise as I had hoped, but that’s what I can do for now. In the picture it looks alright :-)


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/065wgearboxwithfirstdetailsright.jpg


There’s more to come, but for the moment that’s it. The next update may take another while, but hopefully not 11 months again :-)

Outstanding again, was worth the waiting. But as you said, hopefully not 11 months again.

Great to see an update, despite the wait your work is well worth waiting for!!!

So, here’s another update already.

It’s only about a few parts, but they actually took a serious amount of time to get done. They are the brackets on the gear box, the rear suspension arms are mounted to.
Those parts were the reason i started building CAD data for the kit in the first place, because they would have been very difficult to make by hand.
Here are the originals:

http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/066wrealrearsuspensionbrackets.jpg


I had them printed by Shapeways originally but i’ve been wanting to try something else. Get them cast in metal, because that should look better than painting them „metal“.
A jewellery company here in Germany offers that service and my plan was, if it works, to offer these parts in a detail set.
Data quality wise the company is quite a bit more picky than Shapeways. The files had to be very „clean“. From that data they printed wax models in very fine resolution. These can be used directly for a lost wax casting process ( so you get only one part ), or the company will make silicone molds from them, to „mass“ produce wax copies for multiple parts ( which i did ).
In the casting process these wax parts are embedded in a plaster-ish material. When it’s dry the cast is heated up, the wax comes out and there’s room „left“ to be filled with melted metal. After cooling down the cast is broken up and out come the cast metal parts.
Here you see two trees of parts i got made. The left one is nickel silver and the right one brass.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/067wcastmetaltrees.jpg


Some parts are already missing, because i cut them off.

This was a test run to see how small and detailed parts could be made this way. The advantage over white metal parts is, that smaller wall thicknesses can be realized without the parts bending.
The disadvantage as it turns out is, that the surfaces are quite rough because of the embedding material, and that these surfaces are laboursome and tricky to sand.
For comparison here’s one of the brackets in three different states. The part is 4.3mm x 2.5mm x 1.9mm „big“.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/068wRP-partscomparison.jpg


On the right it’s printed in Shapeways‘ „FUD“ material and shot with a bit of grey primer. A lot of delicate sanding and painting to be done, to hopefully make it look like the original.
In the middle it’s cast nickle silver, as it comes out oft he mould. Pretty rough looking in that size, and as you can see at the tip not all of them come out without flaws.
On the left it’s another cast part, but sanded. A lot of delicate work but obviously far from perfect.
The part is so small it’s not visible with the naked eye like in this macro picture, but it is visible. Not like the real piece for sure.
Another before/after picture of another part:


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/069wbracketcomparison.jpg


A proper CNC-mill with a tiny milling head could produce a better part i think, but i don’t have one ( so far :-) It wouldn’t be the way to mass produce parts like that ( for a reasonable price ) though.
After all the time i spent on making the parts you see here ( and a couple of others to come ) i decided though, that this casting process isn’t the way to go either. The parts would still cost a good deal of money to get made and would then require time and skill to finish to an acceptable standard. I’m a nerd and don’t have a problem spending hours on something like this, but i doubt too many others would bother, so at this point the whole „detail kit“ plan went out the window and i decided to just enjoy myself by getting on with this build.

So in the next pictures you see the brackets mounted to the gear box. I used epoxy glue and some aftermarket hex bolts to reinforce the connections.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/070wbracketsinstalledleftside.jpg


The bell cranks are held by turned aluminium bolts.


http://i21.photobucket.com/albums/b288/jaykay640/Leyton%20House%20CG901B/071wbracketsinstalledrightside.jpg


They will mostly be covered up by the top brackets. They’ll hopefully be in the next update, together with the dampers.

Wow Jaykay - every installment just amazes me at what you can do
I'm in for a set of the suspension links if you do sell them
John

WOW! Joachim, that is some AWESOME stuff going on there! Always doing fantastic work with new ideas and methods. I love it! Marvelous stuff!

W...o...w!

That's badass.

Incredible stuff Joachim, well engineered and well executed.
Bravo!

Breath taking work....i am in awe.

Wow jaykay! Your work is astounding! Every post just sets the bar higher. Pushes me to do better with my models. Thanks for the update!

Very nice and clean build Joachim, awesome update!
Can`t wait to see the next step :)

Wow, truly amazing workmanship, I'm intrigued, and looking forward to seeing more, bravo Jaykay, fantastic work!!

Any more updates on this brilliant piece of work JK????

Regards Rick H

Hey Jakay! Wonderful work as per usual from you, but whatever happened to the mp4/4 you were working on? Have you permanently shelved it?

Wonderful work as per usual jaykay, but whatever happened to the mp4/4? Have you permanently shelved it?

:banghead:woops...Sorry about the double post

Hey guys. Thanks for asking. There hasn't been any progress though.
During the summer I moved to a new place because i've become a father around the same time. So my building time has been spent on swedish wooden kits mostly :-)
My stuff ist still in boxes but I hope to get back to it sooner than later ( still need to figure out where to paint...).
However, time is rather scarce at the moment...

Firstly, congrats on becoming a father.......first time???? Secondly, do not, do not, whatever you do give on your modelling, you have a great gift and as you can tell, many people both on this forum and further afield appreciate what you do and hang on every word and post you upload.

Regards Rick H