Replacement & Repair · Free generator

Six-lobe replacement handwheel

A six-lobe handwheel with an extended hub, rectangular drive socket, recessed washer seat and radial set-screw pilot.

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Edit the design. Export CAD.

Choose Continue editing in Nora3D inside the generator to keep your dimensions in an editable copy. Change features and export STEP CAD files.

Before you print

Grip approximately 64 mm across, grip thickness 12; hub diameter 20 and total height 32. Drive socket starts at Z=8, leaving a solid lower web. Metal set screw and washer supplied separately. Match the measured appliance shaft; not a safety control. Geometry has been digitally checked; this template has not been physically test-printed.

Build on this design

AI CAD prompt

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Use this prompt with Nora3D or your AI assistant. Review the resulting geometry before printing.

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Create a new owned Nora3D part document. Use millimeters, world XY as the base and +Z as height. Retain named native features and expose only the controls listed below.

1. Create **Grip core**, radius 23, height 12, initially along +Z, with its base center at (0, 0, 0).
2. Create **Hub**, radius 10, height 32, initially along +Z, with its base center at (0, 0, 0).
3. Create **Lobe 0**, radius 10, height 12, initially along +Z, with its base center at (22, 0, 0).
4. Create **Lobe 1**, radius 10, height 12, initially along +Z, with its base center at (11.000000000000002, 19.05255888325765, 0).
5. Create **Lobe 2**, radius 10, height 12, initially along +Z, with its base center at (-10.999999999999995, 19.052558883257653, 0).
6. Create **Lobe 3**, radius 10, height 12, initially along +Z, with its base center at (-22, 2.6942229581241772e-15, 0).
7. Create **Lobe 4**, radius 10, height 12, initially along +Z, with its base center at (-11.00000000000001, -19.052558883257646, 0).
8. Create **Lobe 5**, radius 10, height 12, initially along +Z, with its base center at (11.000000000000002, -19.05255888325765, 0).
9. Unite **Grip core**, **Hub**, **Lobe 0**, **Lobe 1**, **Lobe 2**, **Lobe 3**, **Lobe 4**, **Lobe 5** as **Handwheel blank**. Require one connected result.
10. Create **Drive socket**, a 8 × 8 × 28 box, centered at X=0, Y=0, with its bottom at Z=8.
11. Create **Washer seat**, radius 7.5, height 5, initially along +Z, with its base center at (0, 0, 29).
12. Create **Set screw**, radius 1.5, height 15, initially along +Z, with its base center at (0, 0, 20).
13. Rotate the current **Set screw** solid 90 degrees around world Y through [0, 0, 20]. Resolve the actual current entity ID before the operation.
14. Subtract **Drive socket**, **Washer seat**, **Set screw** from **Handwheel blank**, consuming the tools; name the result **Replacement handwheel**.

## Public controls

| Control | Default | Range | Step | Meaning |
| --- | ---: | --- | ---: | --- |
| Shaft socket width | 8 | 6–9 | 1 | Rectangular shaft socket width, including fit allowance. |
| Shaft socket length | 8 | 6–9 | 1 | Rectangular shaft socket length, including fit allowance. |
| Washer recess radius | 7.5 | 7–8.5 | 0.1 | Radius of the recessed washer seat above the drive socket. |

All unlisted dimensions, topology and feature order remain fixed. Radius controls are radii, not diameters. These are independent numeric ranges; do not introduce unsupported formula bindings or assume a fit standard from an example value.

Adjustable dimensions

Parameter	Default	Range	Step
Shaft socket width	8 mm	6–9 mm	1 mm
Shaft socket length	8 mm	6–9 mm	1 mm
Washer recess radius	7.5 mm	7–8.5 mm	0.1 mm