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12 improvements for a cheap telescope

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Step 8: (5) Stabilize the focusing system


The focusing tube moves with the help of a rack and pinion mechanism. Shake it a little with your hand up and down. If it moves then it needs stabilization.

I used two pieces of tape underneath parallel to the rack. The pinion is kept in place with a cover and two screws. This should be adjusted so that the tube does not slide.

Since I use a camera on the scope, I controlled these two screws in order to hold the camera without sliding.
 
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