08 • Desktop CNC & 4th axis
Draw it on screen. Carve it into real wood.
A compact 4040-class CNC can open a completely different path in a small workshop: engraved signs, relief carving, inlay pockets, coasters, trays, templates, repeated parts and decorative panels. Add a rotary 4th axis and cylindrical stock can rotate while the cutter works around it.
X ↔Y ↕Z ↕
3-axis: flat work
Signs • reliefs • pockets • inlays • trays • boxes • jigs • templates • decorative panels
A ↻
4th axis: rotary work
Handles • knobs • ornamental cylinders • turned-style details • round carvings • custom decorative pieces
3D reliefsEngraved plaquesInlay pocketsCoastersTemplatesRotary handlesDecorative cylindersRepeated parts
Wood ideas
Sapele • African Mahogany • Canarywood • Padauk • Black Limba • stable fine-grained boards and blocks. Very dense species can demand sharper tooling and more conservative machining.
Suggested CNC setup
Compact desktop CNC • spoilboard • clamps/workholding • collets • V-bit • flat end mill • ball-nose or tapered ball-nose bit • engraving bit • dust shoe/extraction • CAM software • eye/hearing protection
For a rotary 4th axis
Add a compatible rotary module/chuck and tailstock, then use CAM/toolpaths designed for rotary work. Secure the blank carefully, verify clearance and follow the CNC and accessory manufacturer’s instructions.
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