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Step 4Mounting the dials
At this point we'll trim the dials down to circles, the only other change we need make to the transparent dial is the addition of the minute hand, with the hand removed, to the center, attach it with super glue. Do NOT use a super glue accelerator on the transparency, the ink will run.
The photo paper dial is slightly different. For a proper moire effect we need not just rotation, but translation, so the hole will be off center. The easiest way to locate the hole is to overlay the transparency until you get the effect you like, the center of the transparency is now located where you will make the hole in the photo paper.
Once you have the hole in the photo paper dial, super glue on the hour hand and balance the dial, our little clock does not have enough torque to lift the off-balance dial. Here I used a pair of bottle caps with double sided tape. Balancing was accomplished by spinning on a pencil tip and balancing until it showed no preference in stopping.
The photo paper dial is slightly different. For a proper moire effect we need not just rotation, but translation, so the hole will be off center. The easiest way to locate the hole is to overlay the transparency until you get the effect you like, the center of the transparency is now located where you will make the hole in the photo paper.
Once you have the hole in the photo paper dial, super glue on the hour hand and balance the dial, our little clock does not have enough torque to lift the off-balance dial. Here I used a pair of bottle caps with double sided tape. Balancing was accomplished by spinning on a pencil tip and balancing until it showed no preference in stopping.
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