Hi mikebJL63Z,
When we create an extrusion with Join operation, the calculation of participating bodies will be based on their visibility, i.e. only visible bodies will be taken into account.
In this case, I would create a thin-wall cylinder to hold the text bodies and to do the pattern, then combine with the original cylinder body at last. Please refer to the screencast below for details.
For the sanpping issue you mentioned, there are different types of snapping. We can always hold Ctrl key to disable the snapping temporarily.
- Snapping to grid: it's controlled by the Sanp option on the Sketch Palette
- Snapping to objects (midpoints, etc.): No options
- Sanpping to other objects out of the current sketch and auto-projecting it: It's controlled by the option "Auto project geometry not in the active sketch plane" from the Preferences dialog -> General -> Design.
Best Regards,
Nicolas Xu
Sr. SQA Eng.
Fusion 360 Quality Assurance Team
Autodesk, Inc.