Hereâ€™s a really quick 3D model of BlinkM, if anyone needs it. Itâ€™s accurate to ~0.1mm. And here it is plugged into the awesomely done Arduino Diecimila model by Jon-Paul from the Google 3D Warehouse. SketchUp is pretty great, but I found a problem with it if youâ€™re trying to make accurate to-scale electronic parts: it wonâ€™t create surfaces with an area of less than 1mm. Took me a while to figure that out. The solution is to make a 10x or 100x size version and then do a scale by 0.1 or 0.01 when youâ€™re done.