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

This is interesting and wouldn’t mind trying it but have some questions.
1) requires an 11mm diameter spring but how LONG is it supposed to be?? (Length of spring at rest)
2) should this be an Expansion spring or a Compression spring??
3) do you have assembly instructions for the Co2 launcher/trigger ?
4) How long should the scribe be ? What diameter?
Very cool project but the above questions are keeping me from pursuing it.