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

M3 Hex Bolts for engine mounts?
I wondered about that one also but having all parts printed I could measure what is needed.
The hole will be roughly 7mm. (The hole in the block + the mount thickness.)
So with some 6mm M3 bolts or slightly shorter you will be fine.