Hadley GOTO Mount (WIP)

This is still WIP. The GOTO is still in the works, and things can and will change.

I wanted to release the basic files without the GOTO, so my friend could download it and decided to share it with the world. I have added the GOTO printable parts. The electronic and the printable parts are not included in the BOM yet since they are subject to change. For now its upto you to figure it out

After trying various mounts, I found they were either difficult to modify for GOTO or lacked stability. So I designed my own frame with flexibility and customisation in mind.

This mount uses 2020 aluminium extrusions, making it easy to attach upgrades, modify components, and adapt it to your personal setup.

It’s my first larger CAD project, and I learned a lot while designing it. Feel free to modify and improve any parts to suit your needs! But please include the step files if you upload them.

Bill of Materials:

Rocker Box

• 2020 aluminium extrusions

  • 4x 600mm (Or if you like any other size. Keep in mind that your telescope should fit)

  • 5x 230mm

  • 6x 200mm

• 24x Inside Hidden Corner Bracket L-Type

• 28x M4x12mm bold

• 8x 608Zzz ball bearings.

• 1x RockerBox-AZ-Plate.stl

• RockerBox-AZ-Plate

Connector Box

• 2020 aluminium extrusions

  • 4x 70mm  (Or if you like any other size)

  • 4x 239nn

  • 4x 200mm

• 16x Inside Hidden Corner Bracket L-Type

• 14x M4x12mm bold

• 1x ConnectorBox-AZ-TopPlate.stl

• 1x AZ-BIG-Gear.stl

Updates:

3-5-2026:

• Replaced BIG gear with BIG belt gear
  (Reduced backlash caused by spur gears; belt system provides smoother, more precise motion)

• Replaced rocker component
  (Previous version was an older design using incorrect bolt configuration)

• Rebuilt AZ rotation plate from the ground up
  (Replaced temporary, loose design; repositioned stepper motor to the edge to prevent belt pulley interference)