Fornax 150

This is the latest incarnation of the former Fornax 150 mount. The New Fornax 150 comes with much strengthened and improved wormbox that makes it an even more precise mount. The new housing of the worm drive is stronger and it has got an extra unit that holds it in exact position, eliminating any sideway movement that could have occured in earlier versions when changing direction under heavy load.

With MC5 controller
10069 Euros (Exc. VAT.) + shipping

With MC5 controller + absolute encoders (2 Heidenhain ECN 125 2048 5XS08-c4 R)
10569 Euros (Exc. VAT.) + shipping

To buy or get shipping rate please contact us with the Mail for quote button below:

10.069,00 (exc. VAT)

Mail for Quote

Fornax 150

This is the latest incarnation of the former Fornax 150 mount. The New Fornax 150 comes with much strengthened and improved wormbox that makes it an even more precise mount. The new housing of the worm drive is stronger and it has got an extra unit that holds it in exact position, eliminating any sideway movement that could have occured in earlier versions when changing direction under heavy load.

 

fornax 150 equatorial mount

Robust Body

Fornax Telescope Mounts are a series of German Equatorial mounts for precise positioning and tracking large telescopes. These are available in various payload capacities: 50kg, 100kg, 150 kg and 200 kg (the latter one is coming soon). The Fornax 150 telescope mount is a heavy duty German Equatorial mount for precise positioning and tracking extremely large telescopes up to about 100 kg. Although there are examples of use of even heavier telescopes up to 150 kg, the recommended maximum load is about 100 kg for this telescope mount when used for imaging.

fornax 150

High accurate tracking

The mechanism of this extremely sturdy mount is being made of aluminium alloy, cast aluminium, bronze and stainless steel. The worm and the electric motor are located in an enclosed, sealed space (waterproof and dust-proof), making it less sensitive to dust and temperature fluctuations, and is practically maintenance free. Thanks to the ingenious solution of the inner drive mechanism this telescope mount doesn’t suffer from any backlash. Typical periodic error (when not guided) is less than +/- 6 arc seconds (one period on the worm gear is 7.5 minutes long!) When using a TDM (Telescope Drive Master), this can be reduced to below +/-0.5 arc seconds. (TDM is an alternative solution to guiding.) When using auto guiding, the mount reacts immediately, so corrections are very fast and completely free of play. This is the ultimate solution for astrophotography with a high quality/price ratio.

Due to its weight and size this model is designed for observatories, not exactly a transportable model.

SPECIFICATION OF FORNAX 150 EQUATORIAL MOUNT

Mount weight 70 kg 
Max payload capacity: 120 kg (counterweight excluded)
Photographic payload:  90 kg (counterweight excluded)
Overall dimensions: 320 x 584 x 770 mm
Shaft diameter: 100mm, anodised aluminium alloy
Bearings: diameter 150mm, high precision tapered roller bearings in X layout
Gear: diameter 292.5mm, 1.5 modul, bronze, 192 teeth
Worm: diameter 33mm, multiple thread, grinded, hardened, corrosion proof steel (KO13)
Periodic Error: < +/- 6 arc seconds
Periodic Error (with TDM): < +/- 0.5 arc seconds
Stepper Motors 200-phase step / rev., 1.7Nm
Voltage and Current: 24V DC, 3.5A peak power consumption at max. load
Step-resolution: 0.25 arc seconds / step with MC3 and 0,03  arc seconds / step with OC5 
Maximum speed: 4 degrees / second
Counterbalance holder tube: diameter 42.4mm (1.25” KO33 tube) x length 570mm

Fornax 150 Mount Dimensions (technical drawing)
Fornax 150 Pier Top Dimensions (technical drawing)

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