OnStep - poznámky
Z Hujer.Net
Moje konfigurace
Pro převodovku s poměrem 3.71 : 1 plus kola 54 zubů / 16 zubů
// Axis1 is for RA/Az
#define StepsPerDegreeAxis1 15359.4 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// NEMA17 + PLANET : 200 * 16 * 3.71*54/16 * 138/360 = 15359.4
// Axis2 is for Dec/Alt
#define StepsPerDegreeAxis2 9794.4 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// NEMA17 + PLANET : 2000 * 16 * 3.71*54/16 * 88/360 = 9794.4
// PEC, number of steps for a complete worm rotation (in RA), (StepsPerDegreeAxis1*360)/gear_reduction2. Ignored on Alt/Azm mounts.
#define StepsPerWormRotationAxis1 40068L
// NEMA17 + PLANET : (15359*360)/138 = 40068L
Pro převodovku 5+2/11 :1 RA kola 55 zubů / 16 zubů a DE kola 54 zubů / 16 zubů
// Axis1 is for RA/Az
#define StepsPerDegreeAxis1 21850.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * (5+2/11) * 55/16 * 138/360 = 21850.0
// Axis2 is for Dec/Alt
#define StepsPerDegreeAxis2 13680.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * (5+2/11) * 54/16 * 88/360 = 13680.0
// PEC, number of steps for a complete worm rotation (in RA), (StepsPerDegreeAxis1*360)/gear_reduction2. Ignored on Alt/Azm mounts.
#define StepsPerWormRotationAxis1 57000L
// My 16m step : (21850*360)/138= 57000
Přímé spojení kola 54 zubů / 16 zubů
// Axis1 is for RA/Az
#define StepsPerDegreeAxis1 4140.00000 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 54/16 * 138/360 = 4140.00000
// Axis2 is for Dec/Alt
#define StepsPerDegreeAxis2 2640.00000// calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 54/16 * 88/360 = 2640.00000
// PEC, number of steps for a complete worm rotation (in RA), (StepsPerDegreeAxis1*360)/gear_reduction2. Ignored on Alt/Azm mounts.
#define StepsPerWormRotationAxis1 10800L
// My 16m step : (4140*360)/138= 10800
Upřesněné převody šneku 138:1 a 88 : 1 Kola 49 zubů / 16 zubů
#define StepsPerDegreeAxis1 3756.66667 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 49/16 * 138/360 = 3756,66667
// Axis2 is for Dec/Alt
#define StepsPerDegreeAxis2 2395.55556 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 49/16 * 88/360 = 2395,55556
// the EM10b has two spur gears that drive the RA/Dec worms, they give an additional 1.25:1 reduction
// in addition to the 18:1 gear heads on the steppers for a 22.5:1 final ratio before the worm/wheels at 144:1
// PEC, number of steps for a complete worm rotation (in RA), (StepsPerDegreeAxis1*360)/gear_reduction2. Ignored on Alt/Azm mounts.
#define StepsPerWormRotationAxis1 9800L
// My 16m step : (3757*360)/138= 9800
Původní odhadované převody šneků RA 144 DE 72
#define StepsPerDegreeAxis1 3920.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 49/16 * 144/360 = 3920
#define StepsPerDegreeAxis2 1960.0 // calculated as : stepper_steps * micro_steps * gear_reduction1 * (gear_reduction2/360)
// My NEMA 17 : 200 * 16 * 49/16 * 72/360 = 1960
#define StepsPerWormRotationAxis1 9800
// My 16m step : (3920*360)/144 = 9800
