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Old 20-05-2020, 03:15 PM
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pmrid (Peter)
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fitting a DIY focuser to my new BD 80ED.

Just unboxed the scope and the rain started. SO I guess I have time.

I have bought a MyFocuserPro2 from Bob Brown in NZ and want to marryit up with a standard NEMA17 motor via some sort of bracket. The issue really is going to be how to attach the motor to the focuser.

I have an L-shaped bracket courtesy of Mr. Brown but the problem is that there is a gap of about 8-10mm between the bracket and the focuser base on the scope. I'm sure I could fudge it a get a "near-enough" arrangement to work but I'd rather like to be a little more "dainty" than that.

It occurred to me that there may be someone who has alredy gone down this path and devised a better bracket or - better still - had one printed. I don't have one of those fancy printer thingys and don't want to have to buy one just for this.

Any suggestions?

Peter
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Old 22-05-2020, 06:14 PM
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JimsShed (Jim)
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I'd be looking at something that is plastic or aluminium. If you have a 3d printer then you can create exactly what you need. Thats what I did. If not, then maybe cut up a plastic kitchen cutting board.
Is you motor in an enclosure? Also consider doing this to make a neater job. Jiffy boxes are available at Jaycar.
Jim
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Old 27-05-2020, 06:51 PM
Pepper (Steve)
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I found a bracket that screws onto focuser on thingiverse.
Then made the box in freecad to slip onto bracket. Easily fitted and removed.
Modified the gear to slip over focus knob.
Box contained nema stepper and driver.
Printed all of them including the gears.
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