So, it all started from making a bamboo trailer with our host. Then, as usual, I started thinking how to improve it. As I appreciate what Carry Freedom does, I asked them for permission to play with their design. The answer was friendly: “Do what you have to do, we are with you”. So, here it is.
Bill of materials and budget:
- Two 21″ wheels, borrowed form our host. New axles, bearings, tubes: 18 Eur (new complete wheels would cost 50 Euro)
- Eight broom-handles 130 x 3 cm from gardening store: 18.40 Eur
- A pack of zip-ties: 4 Euro
- Screw clamps, 30 cm of steel plastic-coated cable, a shackle (my super-minimalist Witch Hitch): ~4 Euro
- Wheel brackets: four pieces of 5 x 25 cm 2 mm mild steel (zinc coated), manually bent, drilled and jigsaw cut (very crudely): 5 Euro
- Old tubes (joint liner), bracket tightening machine screws (4 pcs.) — reclaimed.
TOTAL: 49.40 Euro, one full day of work (including siesta nap in hammock).
Extras: baptizing of the chariot — 4.40 Eur (3 beers).
Grand Total: 53.80 Eur
Minimal tool set (assuming steel is cut to size already):
- Jigsaw with steel-cutting blade
- Drill with steel drill bit 9 mm
- Knife
- Pliers
- Side cutters
- Wrenches
- Workbench
- Clamps etc.
- Frame squaring rig.
Thanks to good planning and squaring rig, I needed no help (as it happens with classic lashing, where you need extra hands to hold the knots).
See the photostory:
What else to do?
This version will be our main cargo transport for a while. I plan to do some upgrades, testing use of cardboard as a structural, waterproofed material:
- Cargo platform floor and raised sides.
- Cargo platform cover.
- Mud-guards.
- Folding support to keep trailer level, when unhitched.
- Replace borrowed wheels with new pair (needs 50 Eur donation).
- Antenna with a pennant.
- Lights.
Next version, funding permitting, will be made of wooden square beams (3 x 3 cm), joined using xyz nodes. That one will be ready for sale both as kits and ready-made, acryl varnished and all. For community (group) orders, I hope to put CSM in action.
Meanwhile, have fun with the WitchMobile!
Construction update.
After some road time there are two things I recommend:
1. Replace zip-ties and rubber in the towbar nodes with straight nylon rope lashing. It cannot be too flexible.
2. Turn the steel cable in WitchHitch 90* so the loop is vertical.
See the picture for details.
Soon I will also redesign the towbar working end node — it takes the most load and needs to be really strong.
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