Adding a 3D Printabale model of the DotNet Bot with instructions on i…

…deal print settings...

dotnet-bot-3DPrint/README.md

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+# 3D-DotNetBot
+
+3D Printable DotNet bot.
+
+This folder contains the 3D STL files that can be used to 3D print a nice little DotNet Bot, here is one printed earlier.
+
+![DotNet 3D Print](DotNetPrint.jpg)
+
+## Printer
+
+I would recommend that you use a Multi Material Unit so that you can print in many colours, I use a Prusa I3 Mk3S fitted with the MMU2 unit which you can buy from [Here](https://shop.prusa3d.com/en/3d-printers/180-original-prusa-i3-mk3s-kit.html) but if you don't have a Multi-Material capable printer then print in a light colour say White and let the kids have fun painting it.
+
+## Settings.
+
+Suggested print settings are:
+
+    Material -          PLA
+    Layer Height -      0.2mm (Or half your Nozzle Diameter)
+    Support -           Yes required but Build Bed Only will work
+    Raft -              Not required.
+    Infill -            Around 20% should work
+
+## Model
+
+The model is 100mm tall but if you want larger or smaller you can scale in your slicer program, beware that making it much smaller means that the detail will drop and things like the Belt will not show in the final print.
+
+Have fun!