SANDWICH BOARDS
Sandwich boards are probably the most versatile trials unicycling
obstacle and are also very easy to make. They are light and portable,
and in my opinion one of the most important elements of a good trials
course.
_Materials_
20mm (or more) thick sheet of wood
35x70mm (or similar) planks
50mm long screws
2 solid hinges
Solid string or thin rope
Wood glue
_Building_Instructions_
1. Cut the sheet of wood into two identical bits that are preferrably
almost twice as wide as they are high. A standard size is about
250x400.
2. Cut the planks to the same width as the sheets.
3. Place one plank on the long side of the sheet (70mm face down), glue
it into place, then add at least 5 screws placed diagonally. Repeat for
the other sheet and plank.
4. Lay these pieces down flat, side by side with the planks together and
facing up, and separate them about 5mm (maybe less if you’re using a
smaller hinge).
5. Place the hinges slightly in from the sides and mark where each hole
is.
6. Screw the screws (usually provided with the hinge) in loosely
starting with the outer ones. Check the
alignment of the hinges and planks. Tighten each screw.
7. Drill two holes in each sheet in the two remaining bare corners.
Make the holes only slightly wider than the string you have chosen.
8. Open the sandwich board to your desired angle (around 60 degrees) and
feed the string through the holes. Tie knots on the outer side of each
hole making sure that the strings are equal in length.
9. Cut off excess string and lightly melt the strings at the cut and
also at the knot to prevent it from loosening.
10. Ride on your new sandwich board.
_Applications_
- Gapping between sandwich boards at various heights and angles
- Supports for planks and balance beams
- A unicycle stand for running suicide mounts
(see
www.unicyclist.com/gallery/albuu61)
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