Trailer Jockey Wheel Handles
Two 3D-printed handles that make a caravan's trailer jockey wheel easier to tighten and lift.
View showing both handles fitted for operation
The problem
The jockey wheel on my caravan has a steel tightening handle that was proving difficult to tighten fully, so I designed a basic handle that allows a better grip.
The jockey wheel assembly was also difficult to lift easily. The commercially available lifting handle required tools to fit and adjust, so I designed a tool-free version instead.
Design & CAD
Both handles were designed in Fusion 360, and both feature tool-free installation and use.
Build notes
Both handles are printed in PETG, 4 perimeters and 40% infill — supports are required for the bottom edge of the lifting handle.
The tightening handle is an interference fit: it simply pushes onto the steel handle. Depending on your 3D printer's tolerances, this may need a slight scaling adjustment in your slicer.
The lifting handle requires an M8 x 40mm hex bolt and an M8 nyloc nut.
Tightening Handle — STL file
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Lifting Handle — STL file
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Knob — STL file
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