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Author Topic: 3D printing on Radio 4 today  (Read 992 times)

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Offline Kipper

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3D printing on Radio 4 today
« on: December 13, 2012, 08:59:11 PM »
On Radio 4 today, there was an interview with a railway preservation man, and he mentioned having a smokebox door 3D printed in stainless steel, to replace a standard one that had perforated on one of their locos. Unfortunately, I was late for the vets and didn't catch where it was. There was also an interview with someone who did 3D printing - was it one of our members?

Offline kaiwhara

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Re: 3D printing on Radio 4 today
« Reply #1 on: December 13, 2012, 09:00:28 PM »
I'm new to all this - understand how to 3D print Plastics but how do you 3D print Stainless Steel?
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Offline buckle247

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Re: 3D printing on Radio 4 today
« Reply #2 on: December 13, 2012, 09:06:58 PM »
It is in this months steam railway about printing the smokebox door. Not sure where it is either (magazine is at parents house). Was only a small loco though, not sure if it was standard gauge or not.

Offline davieb

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Re: 3D printing on Radio 4 today
« Reply #3 on: December 13, 2012, 09:12:30 PM »
hi all  :wave:

this is the narrow gauge ex Penrhyn 0-4-0 ST Quarry Hunslet Winifred

it was repatriated earlier in the year and the restoration work is to be carried out at the Bala lake railway

there is a short article in the current Steam Railway Magazine

dave  :thumbsup:

Offline MikeDunn

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Re: 3D printing on Radio 4 today
« Reply #4 on: December 13, 2012, 09:16:47 PM »
I'm new to all this - understand how to 3D print Plastics but how do you 3D print Stainless Steel?
Same as you do in gold or silver or aluminium ...  :D

OK, maybe not the same, but there is a wide range of materials you can 3D print in - not just plastic.

Offline Stevie DC

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Re: 3D printing on Radio 4 today
« Reply #5 on: December 13, 2012, 10:31:38 PM »
I'm new to all this - understand how to 3D print Plastics but how do you 3D print Stainless Steel?

Stainless steel would be sintered. Shapeways offers this process (at $10 per cm3) by taking a stainless steel powered (about the consistency of flour) and gluing the powder layer by layer. The resulting structure is then infused with bronze in a kiln to weld the powder together and burn off the glue.

Larger machines exist that can sinter metals directly using a high power laser. I looked into this a few years ago and found the cost astronomical but I would guess it has come down a bit as the technology becomes older.

 

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