The first this we have to do is add another pocket to the other side of the dumpster.  It’s a simple matter of Control-C to copy and Control-V to paste it, then we drag it to the other side and rotate it 180 degrees.  We can use a guide line to show the upper cornet of… Read More


I have found several software programs that I use to develop my models, but all my models start in Sketchup.  Teaching someone to use Sketchup has already been done many times, and there is  a thriving online community using the product. There are Youtube videos:  https://www.youtube.com/watch?v=UsHRGDvN4sM and if you do an online search you’ll find MANY others.  There are written tutorials… Read More


In the last post I talked about two material that can be used to print 3D models, WSF and FUD, and two features found on 3D models, Walls and Wires.  There are three more concepts that you have to consider when designing a 3D model, Embossed Details, Engraved Details and Clearance between parts.  Their names… Read More


As promised, here is a metric version of the chart in the last post. WSF MM Z Scale 1/220 N Scale 1/160 HO Scale 1/87 S Scale 1/64 O Scale 1/48 G Scale 1/32 Supported Wall 0.70 154.00 112.00 60.90 44.80 33.60 22.40 Unsupported Wall 0.70 154.00 112.00 60.90 44.80 33.60 22.40 Supported Wire 0.80… Read More


To understand what is possible with 3D printing you have to understand the limitations of the material you can print in.  Shapeways, the company that prints my models, has guidelines for the minimum thickness for their different materials.  The two I most commonly use are Strong and Flexible, which  I’ll call “WSF” (White Strong Flexible)… Read More