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Warning

Secure the material stock to the CNC machine by following the CNC manufacturer workholding guidelines.

FAILURE TO FOLLOW CNC MANUFACTURER WORKHOLDING RECOMMENDATIONS CAN LEAD TO DAMAGED PROPERTY, BODILY HARM, OR DEATH.

Verify that the material stock is properly secured by vigorously pushing and pulling against the workpiece in all directions.

View the Workholding Guide for examples.

Workpiece Anchoring and Indexing With Jigs and Fixtures

Use custom-made jigs and fixtures to securely hold irregularly-shapped workpieces during machining operations. Job cycle times can be improved by performing the same operation on multiple workpieces successively, minimizing machine downtime due to tooling changes, workpiece positioning, and project Z Axis zeroing.

Jig mounted to CNC machine holding workpiece

Pros

  • Provides improved repeatability and precise positioning, quickly
  • Allows for machining multiple parts simultaneously for batch production
  • Can be used to create a repeatable X, Y, and Z Axis project origin point, minimizing losses due to broken bits and machined away zeroing points

Cons

  • Each jig is typically custom to each specific project and may not be suitable for one-off jobs or prototyping work.
  • Additional design time
  • Additional machining time
  • Impacts Z Axis machineable height
  • Additional hardware required
Warning

Secure the material stock to the CNC machine by following the CNC manufacturer workholding guidelines.

FAILURE TO FOLLOW CNC MANUFACTURER WORKHOLDING RECOMMENDATIONS CAN LEAD TO DAMAGED PROPERTY, BODILY HARM, OR DEATH.

Verify that the material stock is properly secured by vigorously pushing and pulling against the workpiece in all directions.

View the Workholding Guide for examples.

Other Workholding Methods

Screw Workpiece Down

Predrill several pilot holes away from the machining area. Secure with screws appropriate for the material stock.

Clamp Workpiece

Use metal, wood, or plastic clamps to secure the stock from the top-down and/or sides.

Adhere With Double-sided Tape

Cover the flat base of the material stock with double-sided tape to adhere it to the CNC work area.

Adhere With Masking Tape and CA Glue

Cover both the flat base of the material stock and the CNC work area with tape and use CA glue to stick them together.

Jigs and Fixtures

Use custom-made jigs and fixtures to secure stock and for rapid cycle time when machining on multiple objects within the same operation.

Tack Down With Machineable Brads

Use machineable brads to secure the stock to the wasteboard, without risking tooling should collisions ever occur.

Use Vacuum Table

Hold down flat stock and release the material at a flip of a switch or automatically through MillMage.

Secure Workpiece in Vise

Securely mount a vise to the CNC work area and use the vise jaws to hold the material stock.

Workholding Optimizations

Workholding When Cutting Through Workpiece

Add custom tabs to keep objects in place when cutting through material stock.

For more help using MillMage, please visit our forum to talk with MillMage staff and users, or email support.