Bridge Kit Assembly Video – Grade 9

1 min 5 s · Grade 9 Technology · structures

The 3D build animation of the Slotbok bridge school project kit: all 38 pieces going on in order, from the two deck plates to the twine hangers, until the tied-arch bridge stands on its own. Watch it once before you open the box.

The build, in eight steps

1. Lay the two deck plates end to end, road side up.
2. Push an end wall onto each end of the deck, with a drop of glue.
3. Fit the four side rails onto the deck fingers.
4. Put the splice plates on the middle joint and push four dowels across.
5. Build the two stands and set them under the bridge ends.
6. Pin an arch half to each rail end and leg with a dowel.
7. Close each arch with its crown and push the four top dowels through.
8. Zigzag the twine hangers between the rail tabs and the arch holes.

Built, the bridge is 41 cm long, 19 cm high and 16 cm wide, with a road deck 14.4 cm wide.

Get the bridge school project kit · Read the full Grade 9 build guide

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