Quote Originally Posted by old man emu View Post
Just a quick suggestion:

Before you start to assemble your i3 printer frame, take the pieces that make up the extruder mount and the top piece of the X-idler where the Z-axis end stop switch actuator screw goes through.

Put then on your document scanner, in the centre of the scanner be, and scan them. Save the scans as jpeg files.

If you need replacements at any time, you can load the jpeg into your CAD program and draw up a new part by first making a 2D drawing by tracing over it with the polyline tool, then extruding the 2D drawing vertically 6mm. Then save as an stl file and away you go!

Old Man Emu
This is worth doing! However, I have a little different perspective. The i3 and its variants are Open Source. The people selling you the i3 kit or printer leveraged the Open Source community and their contributions. They are obligated under the Open Source license to provide the source files for what they sell to their customers. You should be insisting that accurate, up to date files are available for all the parts!