Geoff's G3 Workbench

Discussion in 'G3' started by geoff_nicholls, 18 September 2015.

  1. geoff_nicholls

    geoff_nicholls Western Thunderer

    A parcel has just arrived from Shapeways

    I asked David Viewing to blow up his 3D printed Bury locos from G1 to G3. These are the results. The material is that rather grainy, but quite resilant plastic. Function connecting rods and valve gear are included. I'll be bringing them to Shepshed (but still unassembled) along with Rundle, in April. 20190306_183221.jpg
  2. Spitfire2865

    Spitfire2865 Western Thunderer

    I fear what those cost. But they look VERY nice.
    Ive never considered printing an entire locomotive like that. Will make finishing and painting difficult but assembly should be easy.
    Ian_T likes this.
  3. geoff_nicholls

    geoff_nicholls Western Thunderer

    What you see in the picture cost £850 from Shapeways, so about £500 per loco when the RC tender power is included. Which is probably not bad for a G3 loco kit.
    Sleeper Agent, jonte and Spitfire2865 like this.
  4. Spitfire2865

    Spitfire2865 Western Thunderer

    Oh wow.
    How are the wheels though? Ive never considered printing wheels.
  5. Jon Nazareth

    Jon Nazareth Western Thunderer

    They look really good. Can't wait to see some paint on them which will make the detail show up.

    Spitfire2865 likes this.
  6. Spitfire2865

    Spitfire2865 Western Thunderer

    The nylon material from Shapeways is VERY resilient, but smoothing it requires quite a bit of work.
    I wonder if the rim could be chucked in a lathe and the surface skimmed smooth.
  7. geoff_nicholls

    geoff_nicholls Western Thunderer

    I've not posted much recently, as I've been fully occupied building four Sentinels, to be sold by the G3 Soc as RTR starter locos, complete with Micron RC. It's a projected Williams Models kit


    I've started spraying the sub-assemblies, and included the 3D printed Bury loco (which David Viewing blew up from G1 for me).

    They were printed by Shapeways in sintered nylon, David's preferred material. Very resilient, but the finish is 'grainy', as you can see from the cruel enlargement. I think with the combination of several coats of paint and careful sanding, I should achieve an acceptable finish. I'm a bit concerned about if the paint on the wheel treads wears off leaving the bare white nylon. I would never have been able to scratch build those wheels myself, though, and with my micro layout you are close enough to see that sort of detail.
    P A D, Neil, Spitfire2865 and 6 others like this.
  8. Mike W

    Mike W Western Thunderer

    Could you send one wheel away for investment casting just in case one gets damaged in the future?

  9. Spitfire2865

    Spitfire2865 Western Thunderer

    In my experience, the material sucks up so much paint it doesnt really 'wear away' to the original color.