Quick Release Fastener - Dzus Dart replacement - as on Countax, Westfield, Ariens
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Quick release fasteners - Used on Countax / Westfield lawn tractors but with other potential uses.
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Updated at source:
Model information
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- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Noncommercial
The Dzus fasteners for the safety guards around the cutter deck on my Countax lawn tractor have begun to break. Ariens, the U.S. owners of the, once UK, Countax and Westfield brands ceased production of them in 2023. These parts are still available from UK agents for now. I could not find the parts via a UK Dzus stockist. Anyway, handy to have them in my print-on-demand library.
There is a wide range of Dzus Dart fasteners but the ones I reverse-engineered and printed are:
Receptacle D1-004-006 (Countax 148997800)
Stud D1-004-065-030 (Countax 148020900)
Retainer D1-004-000-010 (Countax 149500000)
Details of the full range of these fasteners, how to use, and panel/frame hole dimensions can be found at:
https://media.southco.com/media/static/Literature/D1.en.pdf
The OEM receptacles (centre one in the photos) are in Acetal and the studs are glass-filled nylon. I printed my prototype ones in basic PETG and they seem just fine for my purpose. If necessary I'll reprint in Prusament PETG CF or PCCF.
To ensure that the cam surfaces on the receptacle print cleanly I printed with the cam socket (long flat surface) upward and the rectangular outcrop downward. Print the stud sat on its head. Both need support.
Update: Print the receptacles on their side. I made my first batch with the cam socket upward. I thought they tested ok but now having used them in anger they broke at either end. I believe this is because the layer adhesion is not great across the very thin section. Printing them on their side runs the extrusion "grain" in the best direction for the imposed stress. This is much better. Sorry for my initial misleading info!