10inch Newtonian Part 3 - The Focuser(s)


I wanted to use a 2inch focuser and thought if I was to make one it wouldn't be much more effort to make two, so I did. They are a standard crayford with the addition of the lower bearing to add stability. The lower section of the focusing tube has been grooved to try to breakup any internal reflections and the extreme bottom has been threaded 54x0.75mm. I made a set of baffles plates to screw into this thread and bored from 32mm to 40mm so I can insert the optimum baffle to suit my largest eyepiece.


focuser_A.jpg
focuser_B.jpg
focuser_C.jpg
focuser_D.jpg
focuser_F.jpg

focuser_G.jpg
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Last updated - 25th September 2003 Return to Dave's HomePage email Dave (d a v e g @ t p g . c o m . a u)