Project Log‎ > ‎

Model Train Main Junction Box kit 06/22/2014

posted Dec 10, 2020, 7:38 PM by Jay Gross
For this project we needed to get the castings as small as possible and still fit the pre-made terminal block. I used my 3-D printer to cheaply and quickly make parts for the client’s verification. As you can see, the quality here is too poor to use in production parts or for patterns to make molds. (I later got a better 3-D printer that can make sand cast patterns that work after some hand finishing.)  More expensive Shapeways printed brass was used to make the production patterns. This is about the largest part that can be produced using rubber molds and spin-casting with low melting point metals. 
Original junction box from old train catalog My3-D printed case
Another view of the 3-D printed case Much smoother final kit



ą
Jay Gross,
Dec 10, 2020, 7:38 PM
ą
Jay Gross,
Dec 10, 2020, 7:38 PM
ą
Jay Gross,
Dec 10, 2020, 7:38 PM
ą
Jay Gross,
Dec 10, 2020, 7:38 PM
Comments