bicycle trailer hitch - seatpost mount 31.9mm - for prophete trailer coupler
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Durable seat post clamp with notched recesses for prophete trialer coupler which can be purchased on ebay/amazon etc.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Outdoor Sports
- Licencja
- Creative Commons — Public Domain
Has been tested with 18KG trailer and about 25kg load onboard at up to 45kmph. Holds up fantastic.
UPDATE: further testing done with ~100KG all up weight being towed. It's solid.
Please see STEP file attached for any edits you may wish to make, or sign up with onshape to be able to edit the source file directly in case you need a different seatpost size - it's relatively straight forward.
STL attached also.
Public domain release - do with it as you wish.
I printed mine with PAHT-CF (carbon fiber filled nylon). This material is so insanely tough I fear I will break the seatpost before the clamp.
Printed with a 0.8mm nozzle, 0.4mm layer height with the whole model consisting of perimeters for maximum strength. You can achieve similar results by changing your settings to print at 1mm wide layers and 0.3mm layers wide to achieve crazy strength this works particularly well with PETG. Just make sure to slow your 3D printer down to 30mm/s or so, otherwise it may struggle to keep up with the high melting rate.
The two smaller screws will need something like M6x35 bolts. For the rear one I used M6x50 but it is actually sized for a M8x50. Drill holes to 6.5mm and 8mm.
Definitely use a strap in addition to any trailer hitch for security.