Library › Mechanisms › Face spiral on a disc as a drill feed: scroll driving a rack

Assembled mechanism, all parts placed at one pose (STEP keeps each part separate)

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, Xem Studio Design License — Xem Studio

Dimensions

parameter	rack
value	6 T, module 1, 19.05 long

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

Set it up →

From the full sheet

Face spiral on a disc as a drill feed: scroll driving a rack: every size, notes, mating features and sources. How does a spiral on a disc give a drill its feed?