The Shapeoko HDM is a mid-sized, high-resolution CNC router.
<aside> ☝ This tool tutorial is intended to support your use of the machine either after completing the main tutorial or while working through it. It is not a substitute for the official orientation. An in-person orientation is required before operating the machine.
</aside>
<aside> 🛑
When using this guide, please look out for warnings such as this. Failing to follow these crucial details could result in breaking the machine or injury.
</aside>
The Shapeoko HDM is a 3-axis CNC that mills material by moving the spindle in 3 Axes: X, Y, and Z. The spindle carriage is riding on linear rails, moved by stepper motors that can precisely position the spindle at various locations.
The HDM has the following cutting area:
| X-Axis travel | 690mm (27in) |
|---|---|
| Y-Axis travel | 535mm (21in) |
| Z-Axis travel | 145mm (5.7in) |

The Z-axis is the vertical axis, the X-axis is left to right, and the Y-axis is front to back.
The spindle is a powerful water-cooled motor that spins a Tool at high RPMs and uses it to cut material.
The Tool is attached to the spindle with a collet and collet nut
The HDM primarily relies on end mills for material removal. While they resemble drill bits, end mills are designed to cut laterally rather than only moving vertically.

The HDM’s spindle use
The Collet assembly is made up of two main parts: the Collet Nut and the Collet itself. The collet holds on to the shank of your tool, and tightening the Collet Nut clamps the Collet down on the tool.

The size of the collet hole needs to match that of the tool. If the tool shank diameter doesn't match that of the collet, then you must change the collet. The two main sizes are 1/4 in and 1/8 in.
The Collet Nut works with all diameter collets.