The MountOne CAD Pack.

The MountOne CAD Pack contains all digital resources for the MountOne GOTO Telescope Mount.

Contained in the MountOne CAD Pack are

• STEP Files, including the Main Assembly.
• STL Files, full sets with all calibration sizes.
• F3Z Fusion Files, the fully-editable Master Assembly.
• PDF Files, Bill-Of-Materials with Fixings & Printed Parts.
• 3MF Files, for Bambu Lab P2S & A1 Mini.

A direct-download link will be emailed to you after check-out.

The MountOne CAD Pack is included with all purchases of the MountOne Hardware Kit.

The MountOne GOTO Telescope Mount.

The MountOne GOTO Telescope Mount uses two high performance 0.9° stepper motors coupled to two 5-stage 405:1 belt-driven reduction-drives. This configuration removes almost all backlash in the motion system. The MountOne is able to track with a computed  resolution of 0.25 arcseconds per-step while still being able to slew at 3° a second.

18 bearings in the DEC & RA axes provide smooth and jitter free movement. Genuine Gates 3GT belts are used for each compound stage and are individually tensioned for optimal performance.

Integrated Slip-Rings pass power and signal data between the MountOne and one of four attached astrographs. 

OnStep firmware controls the mount and provides a data-link to a huge range of astronomy software packages via one of four attached astrographs.

The Printed Equatorial Tripod (PET) provides polar alignment between latitudes of 0-60°.

The MountOne GOTO Telescope Mount, Printed Equatorial Tripod, and Four Astrographs can all be printed on machines with a build volume of 180X180x180 or larger.

The MountOne Assembly Documentation.

MountOne © 2026 by Hexaxes Ltd is licensed under CC BY-NC-SA 4.0