BALANCING FLIs BIG OFFSET FILTER WHEEL

The problem-
The FLI CFW-5-7 is offset and servrely creates an out-of-balance issue not only for the Rotator, but the Telescope balance as well. This issue causes a tremendous load on the Rotator. Even with the Pyxis 3" Rotator, it labors to move +180 deg and -180 deg.

Also, the Telescope only finds good balance at 2 specific PAs. (90 & 270).

The Solution-
To solve this problem I have designed and fabricated a Steel Balancing Weight shown below.
This weight adds symmetry and gives the FW perfect balance throughout a complete rotation. Now it is possible to perfectly balance the Telescope as well.

This steel counterweight adds just over 4 lbs to the setup.

Images.
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Since 2009