Loading

MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now

Report as inappropriate

Hi, thank you for telling me that! It worked fine with the printed rails I had, but they may not be at the right dimensions themselves.
If I were to add 1.5mm to this sight I would print it 105-108% of its original size, the rest depends on your printer and its tolerances. You do not want too much clearance between the rail and the sight as it may leave it unstable on the rail. In my case i always prefer to use a little sandpaper if I need to.