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Magnetic Parts - Hadley Neumo 3D Printer File Image 1
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Magnetic Parts - Hadley Neumo

Neumo avatarNeumo

May 11, 2025

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Description

These models modify the base Hadley Neumo bodies to add magnet pockets. This allows you to attach magnetic covers and filters. It also includes magnetic accessory mounts (4 magnet and 2 magnet) to easily attach sights, or any other accessories. The accessory mounts use a split body design to clamp onto an existing telescope without needing any disassembly.

Listing includes:

  • Magnetic versions of each major body (UTA, MTA, LTA) with two options: One to use with the Hadley Neumo LTA blackout sleeve, and one to replace the one piece body option. I'm not sure what the use case is for the magnetic MTA, but figured I'd include it for completeness.
  • Test block to test your hardware and keep track of magnet polarity (See assembly manual on Hadley Neumo page)
  • Three magnetic covers: a simple cover, a cover designed to hold the sights when not in use, and a cover with a hole in the center for the upper adjustment knobs
  • A riser to lift a cover or filter over the upper adjustment knobs (so cover/filter doesn't need to have a hole in it)
  • Two accessory mount options: Four magnet accessory mount and two magnet accessory mount
  • Upper and lower magnetic sights

 

Additional Hardware:

Depending on what parts you use, you will need the following hardware:

Printed Part6x3mm MagnetM3x8 SHCSM3 Threaded Insert
LTA/UTA Body3  
CTA Body6  
Simple/Upper Cover3  
Storage Cover7  
Riser6  
4 Magnet Accessory Mount433
2 Magnet Accessory Mount222
Upper/Lower Sights2  

 

Assembly:

In addition to the assembly instructions on the Hadley Neumo page, you'll need to install magnets into the telescope bodies paying attention to the polarity (B side of test block). (LTA example below)

 

Additionally, install magnets into the pockets on any covers. Pay attention to the polarity Outside magnets should be A side of the test block, storage magnets should be B side of the test block.

 

Prepare the top clamp piece by installing magnets and threaded inserts where needed. Pay attention to the polarity (B side of test block):

 

Install the clamp onto the telescope with two or three M3x8 screws:

Prepare the sights by installing two magnets in each. Pay attention to the polarity (A side of test block):

 

Change Log:

  • 5/11/2025 (Small Update)
    • Added a rigid accessory attachment point to UTA body. Useful to attach accessories (finder scope, cell phone, etc) inline with the telescope and more rigidly than on the accessory clamps.
    • Corrected some modeling mistakes and made some small changes to some files
  • 11/20/2024
    • Corrected “Upper Cover” hole size
  • 9/26/2024
    • Removed chamfer from blackout sleeves for easier printing
  • 4/23/2024 (Magnetic Update)
    • Added UTA and CTA bodies
    • Changed the LTA magnet locations to match the new UTA and allow covers to be interchangeable (new location also follows the "Righty Tighty, Lefty Loosey" convention)
    • Added a UTA cover and a riser
    • Added an adapter for users who already assembled an R2 magnetic LTA. Changes the side magnets are on so you don't need to reprint the entire LTA.
    • Added Magnetic Covers STEP file with template body for anyone who wants to make a cover/filter
    • Slightly tweaked accessory mount sizes
    • Changed revision number scheme
  • 11/15/2023 (Alignment Update)
    • Updated to match Hadley Neumo alignment knob updates
  • 10/06/2023:
    • Added 12mm tube options
    • Added STEP files
  • 10/04/2023
    • Initial Release

License:

Creative Commons — Attribution — Noncommercial — Share Alike

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