Designer 3.0 costs what?

[liquidguitars]

Designer people will need 2.x or 3.x the Pattern editor and the fantastic STL package.

Overall its a simple job, use "make pattern" and load into Pattern Editor, smooth filter to taste and export a STL. You now have " STL " in and saving format "STL" out.

[lynnfrwd]

Can't it be done with 1.187? Or earliest version that supports STL export?

[liquidguitars]

Yes 1.187 with PE and STL package will work however the new tools enable you to build more complex shapes and parts that in a way you likely to export... including the rotary jig to STL out.