Small boat launch wheels

I haven't used them much yet so i can't vouch for their durability.

Print:

2x wheelmount and wheelhub. both need supports.

4-8x hingehub depending on configuration.

4-8x hingecap or hingecap_nut depending on if you use bolts or threaded rod.

2-4x hitch

Print them all solid.

Vitamins:

2x wheels with a 20mm internal hub diameter which can take the weight. wheelholder and wheelhub can be modified to fit others. (biltema 14-2678)

2x M12 bolts. 50mm + the width of your wheel, or equivalent threaded rod.

2x M12 nuts, or 4 if using rod.

1m+ 20x20mm aluminium or stainless square pipe cut into 2x 40cm, 2x 8cm and 2x 2cm or 4x 8+cm for the alternative configuration.

2x M4x50 for base configuration. M4x70 alternative.

6-8x M4x 40mm + the thickness of your boat stern

Or equivalent threaded rod.

8-10+ M4 nuts and maybe washers. 14-18+ if using rod. 2 of them optionally wing nuts to make removal easier..

All nuts and bolts ideally A4 grade stainless.