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Linemar Atomic Reactor
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airspyder


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PostPosted: Sun Apr 02, 2017 5:59 pm    Post subject: Linemar Atomic Reactor Reply with quote

Hi gang,
I recently made the opening bid on this 50's Linemar Atomic Reactor, and as it happened I was the only bidder.  

The engine arrived Friday afternoon.

These are rarely found in good condition, being made of cheap materials, the tin boilers are often full of pin holes or completely rusted through so I didn't have great expectations upon it's arrival.

As you can see in the photos it has a fair amount of rust and it is missing the Red cap that sits on the tower, and the condensate tray. The missing parts can be made or replaced so I am mostly concerned about the rust, and how deeply pitted it might be.

 photo Rctrfront.jpg

 photo Rctrside.jpg

This is the battery compartment, it holds exactly one D cell.

 photo Bttry Cmpmnt.jpg

Here is the flashing light mechanism, driven by the engine and powered by the D cell.

 photo TwrBlb.jpg



I don't trust the boiler but for now I will leave it as is for now.
Someday the missing parts may show up, I could get lucky and find a rusty donor with an intact plastic cap and a condensate tray.

Until then I've decided to have a go at making my own.
This is how I spent my Saturday afternoon.
I've created a 3D model (Dimensions all guesswork) of the cap.
Hopefully in the future I will be able to get more accurate dimensions from one of our forum members with a linemar Atomic.

 photo 3Dmdl1.jpg

 photo 3Dmdl2.jpg

So off to the 3D printer, The Red filament that I have is not translucent so it won't be a perfect match, but it will be close enough for now.

 photo Cap1.jpg

Slowly it grows

 photo Cap2.jpg

This tool about two hours to complete



I decided to make two versions of the cap.
Version 1 will require the missing metal band to be replaced.

 photo Cap vers1.jpg

Version 2 simply sits over the top

 photo Cap ver2.jpg



I will do a more thorough inspection of the boiler before trying it on steam but odds are very high that it will need replacement.

But I am really pleased to have it, I think it will be well worth a restoration.

Cheers,
            Bill
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MrMamod


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Joined: 03 Jan 2010
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PostPosted: Sun Apr 02, 2017 6:20 pm    Post subject: Reply with quote

Wow Bill that 3D printer sure is a handy bit of kit    
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Roly Williams


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PostPosted: Sun Apr 02, 2017 7:15 pm    Post subject: Reply with quote

Odds on, the original prototype was just a distributor cap from some Japanese car
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magpie38


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PostPosted: Sun Apr 02, 2017 7:44 pm    Post subject: Reply with quote

Roly Williams wrote:
Odds on, the original prototype was just a distributor cap from some Japanese car


you are probably very close to the truth Roly, nice engine though
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Cheers Mick
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kd02


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PostPosted: Sun Apr 02, 2017 8:53 pm    Post subject: Reply with quote

Roly Williams wrote:
Odds on, the original prototype was just a distributor cap from some Japanese car


I agree Roly, a 5 cylinder dizzy cap,  
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MrDuck


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PostPosted: Sun Apr 02, 2017 11:07 pm    Post subject: Reply with quote

The rust looks very superficial but with the thin tin of Japanese toys of that era...
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andycrazy


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PostPosted: Mon Apr 03, 2017 5:14 am    Post subject: Reply with quote

You did a good job with the cap.  Hopefully it will just be surface rust.  It does not look too bad in the pics.
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draconus


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PostPosted: Mon Apr 03, 2017 7:48 am    Post subject: Reply with quote

wow !   the 3D printed cap is impressive.....geez....

nice engine too BTW
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airspyder


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PostPosted: Mon Apr 03, 2017 1:30 pm    Post subject: Reply with quote

Thanks for the comments.  

Yep, it looks very much like a distributer cap, a very small 6 cylinder cap.

I looked at a lot of Marx and Linemar toys to see if that part was used on any other product. No luck there.

The rust on the base is superficial at the moment but it will grow, so to extend the life of the engine I think it should be completely removed and the base repainted.

The printed cap turned out alright, I may invest in some translucent Red filament and see if I can get a closer match to the other Red lenses on the tower.

There really isn't much information about the Linemar Atomic reactor online so I'll post more photos as it is carefully and cautiously disassembled .

Thin gauge tin everywhere, this engine only weighs about 2.2 lbs dry.
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The_EnderPixel


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PostPosted: Tue Apr 04, 2017 2:35 pm    Post subject: Reply with quote

Looks a bit like a Wilesco R200.  
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MooseMan


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PostPosted: Tue Apr 04, 2017 6:26 pm    Post subject: Reply with quote

Love the light action!!!
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airspyder


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PostPosted: Wed Apr 05, 2017 4:13 pm    Post subject: Reply with quote

The_EnderPixel wrote:
Looks a bit like a Wilesco R200.  


Very similar features, I like the Wilesco's look better myself.
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airspyder


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PostPosted: Wed Apr 05, 2017 4:15 pm    Post subject: Reply with quote

MooseMan wrote:
Love the light action!!!


The flashing lights are a neat feature on this model
I will take some photos of how the light mechanism works.
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airspyder


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PostPosted: Wed Apr 05, 2017 4:28 pm    Post subject: Boiler Reply with quote

I have had a closer look at the boiler and all I can say is I wouldn't trust it with a flame under it.
So something will have to be done about a replacement.

I've recreated it on the computer so I can show a little about how they were made.

The tin is .015 I believe 28 gauge, very thin.

 photo Boiler1.jpg

The top half is about 3.5" Diameter.
The safety valve is threaded 6mm x 1
The steam outlet is drilled 3mm

 photo Boiler1Top.jpg

 photo Boiler1Bott.jpg

The edge of the top half is formed over the rim of the bottom half, then soldered.

 photo Boiler1 Cross sect.jpg

I am dealing with the rusty bits right now and trying to match some paint colors.

Bill
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Dr. Rog


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PostPosted: Mon Apr 17, 2017 1:07 pm    Post subject: Reply with quote

kd02 wrote:
Roly Williams wrote:
Odds on, the original prototype was just a distributor cap from some Japanese car


I agree Roly, a 5 cylinder dizzy cap,  


Rare things 5-cylinder engines.
I think the long-chimney look is cool well worth it.

Could a copper boiler be fitted inside the steel one, using it as a casing?
The big Wilescos work well.  
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