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Axle Box Springs


3D Print Tom

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As I mentioned in my introduction regarding 3D printing, I decided to produce my own axle boxes as there were none available that resembled the Cambrian one. I was fortunately able to obtain some good photos of the loco and a works drawing which helped me design the axle box. After creating a 3D model it was then saved out as a stl file for 3D printing. I am awaiting delivery from Shapeways where I have sent my stl file for printing using their frosted extreme detail material. The axle boxes will be printed at 16 microns which is .01mm layer thickness. If the prints are satisfactory Dragon Models has asked if they can have a set to cast from. Depending on the quality of the castings I may either use the castings or 3D prints on the loco.

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  • RMweb Gold

Can the software be re-sized for 0 gauge or does that require extra work? The results look good.

Don

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Hi Don

 

If I want to scale up the drawing to 7mm I just scale it up by 75% in the 3D software. I can also scale up my exported stl file in the stl viewer such as Netfabb or Meshlab which are free to download. I will post pictures of the new axle boxes when they arrive.

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Having received my springs minus their axle boxes from Shapeways I decided the sprue needed more supports. I also beefed up the model and although probably over scale in places it should now stand up to the rigours of being printed and cast. Shapeways were kind enough to offer a full refund or store credit,

Axle Boxes Sprue

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Cambrian 440 Axle Boxes


Visited Scaleforum today and really enjoyed the show. Alan Buttler of Modelu was there and he kindly gave me some new test prints of my axle boxes. They are much better than the previous prints and what I was looking for in terms of sharp edges. I have cancelled my order with Shapeways as I don't see how they can improve on the ones Modelu have printed. The unit cost on these will be 50p based on a minimum order of
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