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There are several related instructables on the right that may give you some insight. Also i found this old Q&A that may help as well.
They all are put together about the same way. You may find a single set screw but the rest is snapped together and pressure fit. You just gotta keep at it and not be afraid to break it. Chances are you will break it. These things are not made with servicing in mind.
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Posted:Jan 17, 2014
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