3D printed accessories for hassle-free astrophotography

Made in Germany - Shipped from Germany

Universal on-OTA mounting kit for ZWO ASIAIR Pro, Plus or Mini with a belt drive for ZWO EAF

This is a set of mounting components for astrophotography rigs using lenses and telescopes with a focus ring, and based on ZWO ASIAIR Pro or Plus and ZWO EAF. The set allows compact and flexible mounting and allows using a range of lenses and telescopes in the same installation.

(use the arrows on the left and right sides in the middle of the frame to scroll through pictures)

The kit helps in mounting essential hardware components for astrophotography. The ZWO ASIAIR astrophotography computer, the ZWO EAF, and the guide scope are placed on hexagon rings embracing the OTA or a lens. This allows a compact and well-arranged setup. You can use the same kit with various OTAs and lenses. For this, you just need to exchange inserts fitting another OTA or lens and use a different belt. If you move to a larger lens, you might need to upgrade the rings or rails, but all parts remain compatible and interchangeable. 

This kit also adds a belt drive for the ZWO EAF. Compared to other mounting kits for ZWO EAF, this kit is based on a belt drive. The belt drive includes a tension mechanism supporting the freewheeling of the drive. This allows quick focusing in a needed direction. A belt drive is based on pulleys and timing belts with standard sizes and profiles. With this, you can easily find a replacement or variate dimensions or the transmission ratio.

The top plate contains mounting for a guide scope with a dovetail-shaped base. The provided clamps allow the mounting of large rage dovetail-shaped bases.

Both, ZWO ASIAIR and ZWO EAF are mounted on sliding holders so that they can be used in different positions supporting a large range of mounting variations. All rails of the kit have eyelets at the ends for cable management. All three current versions of ZWO ASIAIR can be mounted. The Plus and Pro versions have the same mounting dimensions. The Mini has other mounting dimensions and requires a dedicated mounting plate. 

The kit can be ordered with an additional Vixen-style dovetail plate, a Losmandy dovetail plate, or with the Universal Bottom plate. The Universal Bottom plate can be used with other dovetail plates for attaching the rig to a mount and also contains holes for mounting on dovetail plates provided by William Optics with RedCat 51 and RedCat 71 OTA.

The set includes:

  • multiple 3D-printed parts
  • inserts fitting the selected OTA or lens (you can order inserts for another length or OTA separately here)
  • all required screws and nuts
  • one pulley
  • one timing belt fitting the selected OTA or lens. In some cases, an open belt with a lock will be used
  • ~30cm hook-and-pile fastener (also known as “velcro” (R) fastener)

The mounting kit is available in these color variants:

  • Diffuse Nebula (a mix of black and red parts)
  • Red Star (all parts and inserts are in red)
  • Black Hole (all parts and inserts are in black)
  • James Webb (hexagon rings and inserts are in yellow-gold and other parts are in black)

You can select the desired color option while ordering. You can also order the kit made in carbon-fiber-enforced material for even more rigid and stable construction.

Some lenses and OTA require larger rings and longer plates and rails. This will be indicated in your order and result in an additional price. Later, you can order additional parts for the kit to adapt other lenses or OTA. You can use a smaller lens or OTA in larger rings with larger inserts. See this page for more details about customization for other OTA with helical focuses or other lenses.

See this page for more details, and this page about assembly and use instructions.

Please note that a few pictures in the product gallery show additional equipment and components, incl. ASIAIR and EAF, which can be used with this product but are not included in this product. One of the product pictures in the gallery shows the parts that will be shipped with your order.

If you have questions, feedback or suggestions for custom changes, please contact us using this form.


VAT exempted according to UStG §19
Delivery Time: ca. 10 workdays
Additional costs (e.g. for customs or taxes) may occur when shipping to non-EU countries.

You can order additional parts seperately and use the kit with other lenses or OTA
select the color variant
the holder plate for the ZWO ASIAIR Mini is shorter
choose one
select as many additional ones as you need
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