6X35mm Finder Scope
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This is a 6X35mm finder scope based on items from surplusshed.com.
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Updated at source:
Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution
This is a 6X35mm finder scope based on the following items from surplusshed.com:
https://www.surplusshed.com/pages/item/L2075.html https://www.surplusshed.com/pages/item/L14523.html
It consists of the following parts:
Optical Tube (qty 1) - holds the 35mm objective lens
Dew shield (qty 1) - screws onto the OT to hold the objective in place
Eyepiece holder (qty 1) - screws into the other end of the OT; holds the eyepiece assembly
Eyepiece barrel, internal thread (qty 1) - holds the Plössl lenses and the crosshairs
Eyepiece lens spacers (qty 2) - the lenses in the eyepiece set are nominally 14mm diameter but some were slightly larger. I include both 14mm and 14.6mm diameter spacers
Eyepiece barrel, internal thread (qty 1) - this threads into the barrel to hold the lenses in place
Eyepiece crosshair holder (qty 1) - glue thin wire or monofilament into the grooves to add crosshairs. Thread into the barrel last.
Eye guard (qty 1) - print this in TPU
Finder holder (qty 1)
3mm knobs (qty 6) - These hold 3mm nuts that thread onto the M3 X 20mm screws
In addition, you'll need 6 M3X20mm screws and 12 M3 nuts.
The objective lens has one threaded side; this goes toward the dew shield (if the image sucks, try reversing it). The ones I got were a bit chewed up, so I had to file down some metal burrs to get it into the OT. The eyepiece lenses are arranged in a classic symmetrical Plössl configuration.
All parts are printed in black PLA except for the OT (white PLA) and the eye guard (black TPU). You will need to paint the interior of the dew shield and the OT flat black. Prime the OT with white paint first. Be sure to mask off all exterior surfaces and threads. All threaded parts should be printed at 0.12mm vertical resolution, although 0.16 would probably work okay. Non-threaded parts can be printed at 0.20 or 0.24.
Print Settings
Printer Brand:
Creality
Printer:
CR-10S
Rafts:
No
Supports:
No
Resolution:
0.12 to 0.24
Infill:
20%
Filament: Inland PLA & TPU Black/White
Category: Physics & Astronomy