Civil Engineering Reference
In-Depth Information
Fig. 1.6. You can use a rotary table to drill a traction engine wheel for the spoke
holes. Depending on how you position the rotary table and the milling table you can
drill holes at a large radius on a modest size mill. This illustration shows the spoke
hole set at 45 degrees from the centre of the table. The machine's spindle is static;
only the rotary table and the wheel rim will rotate to drill further holes. You will have to
use some extension bars to clamp the traction engine rim to the rotary table.
