In my last post I had an image of one of the guides and the slider in the background.  The slider is an aluminum extrusion and the guide is 0.75″ thick Oil Filled Nylon.  Nylon is resistant to stain and other chemicals we are using as well as having a low friction coefficient.

Here is a close up of the 3D Assembly taken straight from my computer screen.

Here is a photograph taken with my phone of the actual part that has been machined and installed.  There is something satisfying about designing something and then making it exactly (within tolerance) to the size and shape you wanted.