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Here the third side has been partially attached. The 2 by 4 is for pushing the jig along the post as the third side is fastened. Clamping the sides against the jig keeps the width uniform.
| Next picture Here the third side has been partially attached. The 2 by 4 is for pushing the jig along the post as the third side is fastened. Clamping the sides against the jig keeps the width uniform. |
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