EQ telescope mount II. for OnStep goto controller by RomanHujer

Last crawled date: 4 years, 1 month ago

NOTICE: The new version now released!
EQ mount II for small telescope or DSLR, desing for OnStep goto controller.
How to make? See my video: https://youtu.be/Dmi01grPYCI
FreeCAD sources on Github
EQ mount used 2x My Planetary geerbox 1024:1
More info about OnStep goto controller on Howard Dutton project or OnStep News
My OnStep Controller Box for on Arduino Mega2560 board.
OnStep config.XXX.h

// Axis1 is for RA/Az
#define StepsPerDegreeAxis1 12288.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// NEMA17 + PLANET : 200 * 16 * 27/20 * 1024/360 = 12288.0
// Axis2 is for Dec/Alt
#define StepsPerDegreeAxis2 12288.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// NEMA17 + PLANET : 200 * 16 * 27/20 * 1024/360 = 12288.0
// PEC, number of steps for a complete worm rotation (in RA), StepsPerDegreeAxis1*360)/gear_reduction2. Ignored on Alt/Azm mounts.
#define StepsPerWormRotationAxis1 4320L
// NEMA17 + PLANET : (12288*360)/1024 = 4320

Another recommended link:
My OnStep ST4 Handheld controller
My DIY Telescope
Wood tripod upgrade for telescope with Eyepiece plate
My OnStep for Seben EQ3 mount
NOTE:
Use stones and cement to fill the weights.