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Showing posts with the label dual alt-az

Locking Clutches

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I made a little more progress on my homemade telescope mounts this morning.  I decided to drill and tap each of the axes on each of these mounts so I can add a clutch of sorts to each axis.   In this first photo, you can see both locking clutches on the equatorial mount.  I drilled and tapped 1/4-20 holes on the edge of each axis.  I can now add some friction to each axis or I can even lock down an axis.   This next photo shows the three locking clutches on the dual telescope altitude-azimuth mount.  Now I can control how much friction is applied to each of the axes.   Although it appears as though the 1/4-20 locking clutch makes direct contact with the threads on the axis, it does not.  I have some heavy leather inside the hole I drilled so the leather is pressed down on the threads of the axis.  This will protect the threads while applying enough pressure to have a useful clutch.  If we had metal on metal, then the threads would quickly be ground down by the metal on meta