Back to the 3D modelling

[Atso]

Hi all,

Having almost completed my cardboard Atlantic, I've totalled up the cost of the model and having purchased fittings found that this has cost me more than using a 3D printer. As the original reason for building the model out of cardboard was to keep costs down, I've decided to return to my CAD work and designed this to fit onto a Farish V2 chassis (with rear pony truck removed!).

[Bill Bedford]

Hi all,

Having almost completed my cardboard Atlantic, I've totalled up the cost of the model and having purchased fittings found that this has cost me more than using a 3D printer. As the original reason for building the model out of cardboard was to keep costs down, I've decided to return to my CAD work and designed this to fit onto a Farish V2 chassis (with rear pony truck removed!).

I'll see your loco body and raise you a set of wheels..............

[Atso]

I'll see your loco body and raise you a set of wheels..............

Hi Bill,

I've got a set of N gauge 4' 8" drivers to be printed some day - but have you considered that the body should hopefully be printed in stainless steel - so I guess I've raised you again!?

How did the GCR tenders turn out in the end?

[Bill Bedford]

I'll see your loco body and raise you a set of wheels..............[/quote
I've got a set of N gauge 4' 8" drivers to be printed some day - but have you considered that the body should hopefully be printed in stainless steel - so I guess I've raised you again!?

I've looked at the stainless printing and I'm not at all sure whether it will be worth pursuing. The combination of price, surface finish and a minimum wall thickness of 2mm mean that the process will be difficult to use economically. I am, however looking at using a different route though it still needs a lot of work.

[IAK]

Cast frames?
Now this looks different

[Atso]

I've looked at the stainless printing and I'm not at all sure whether it will be worth pursuing. The combination of price, surface finish and a minimum wall thickness of 2mm mean that the process will be difficult to use economically. I am, however looking at using a different route though it still needs a lot of work.

Castframes1.jpg

Castframes2.jpg

Hi Bill,

Interesting to see you're metal printed chassis, have you thought about sand blasting them as this is what I am considering for my body. Also if you look one Shapeways's forum there is an interesting discussion outlining how to get the best finish from a stainless steel print. I've seen other methods of metal printing which do give slightly better results by at the expense of a much higher price (I got quoted between £800 and £1500) for one model from several different manufactures!

What are the plans for those wheels? Are you looking to get them cast as a commercial venture?

[Atlantic 3279]

Whilst blasting will reduce or eliminate the stepped / stratified texture of a 3D print, will it not also tend to round off all the edges and corners, even if you happen to want them to stay sharp?

[Atso]

Hi Atlantic,

I hadn't thought about the effect that sand blasting would have on sharp corners. However maybe a light blasting followed by a spray over with some Halfords filler primer might produce something that can be worked with...