Bresser Exos-2 / Meade 75 RA stepper motor 'step'

[Fraunhoffer]

Hello
I just wondered - does anyone know the stepper motor 'step' angle for this mount when at sidereal rate.
Ive searched ES , Bresser and Meade sites for the equivalent motor kits to go on an EQ5 type mount (144 worm turns / revolution) … but I cant find the RA stepper motor kit step rate or angle anywhere.

Thanks

 

[Fraunhoffer]

looks very similar to a Vixen MT-1 in a black square case and DIN socket.

 

[lenscap]

Hi Fraunhoffer,

There is discussion on the AstroEQ forum that the Exos-2 has the same worm ratio as the EQ-5.       https://www.astroeq.co.uk/forum/index.php?topic=249.0   

EQ-5 gear ratios etc can be found here.   https://www.astroeq.co.uk/tutorials.php?link=ratios

Are you looking to fit an off-the shelf RA drive, or to choose a motor and design your own?