Tramming

Verb

1. present participle and gerund of tram
2. (in machining, like a CNC router or mill) aligning the spindle perpendicular to the worktable for accuracy to ensure flat cuts, preventing angled or uneven surfaces that result from a tilted or "out-of-tram" spindle
3. (in 3D printing) aligning the gantry with the print surface to ensure flat printing