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<blockquote data-quote="dreambox1959" data-source="post: 1146274" data-attributes="member: 314801">I reworked the handling of the positioner program for EGIS EPR103/203.I had taken as a base 100 pulses/degree in AZ and 200 pulses per degree in EL, but it is 400 pulses per degree in EL.On my model (improved by TRUST) when I look for the EST origin limit I go beyond 90° EST on the mount and coming back west until the release of the ORI-AZ switch I am almost perfectly at 90° EST.so the azimuth index counter must be at 0 at this time, as the value must not be less than 0 (65536), so the minimum limit must be set at 200, the maximum limit can approach the value 18000 but 17000 would be better.For the elevation, on my model when the ORI-EL switch is reached the front face of the aluminum bell is vertical (0°), by multiplying the angle of declination by 400 we obtain the value of the elevation index ( there is a non-linearity which means that the theoretical values will have to be adjusted).So I slightly changed the procedure for finding the origin points:-for the azimuth I go to the left (EST) until I meet the switch which is triggered, I stop the motor and go back at slow speed until I release the switch, at this moment I fix it 'index counter at 0000 then I ask for a move to the right of the value chosen in dial8b3 (200 recommended by me) to move away from this zone.-for the elevation the procedure is quite similar, I straighten the upper plate of the motor until I meet the switch which is triggered, I stop the motor and go back at slow speed until I have the release of the switch, at this moment I set the counter index to 0000 then I ask for an upward movement of the value chosen in dial8b3 (200 recommended by me) to move away from this zone.</blockquote>

[QUOTE="dreambox1959, post: 1146274, member: 314801"] I reworked the handling of the positioner program for EGIS EPR103/203. I had taken as a base 100 pulses/degree in AZ and 200 pulses per degree in EL, but it is 400 pulses per degree in EL. On my model (improved by TRUST) when I look for the EST origin limit I go beyond 90° EST on the mount and coming back west until the release of the ORI-AZ switch I am almost perfectly at 90° EST. so the azimuth index counter must be at 0 at this time, as the value must not be less than 0 (65536), so the minimum limit must be set at 200, the maximum limit can approach the value 18000 but 17000 would be better. For the elevation, on my model when the ORI-EL switch is reached the front face of the aluminum bell is vertical (0°), by multiplying the angle of declination by 400 we obtain the value of the elevation index ( there is a non-linearity which means that the theoretical values will have to be adjusted). So I slightly changed the procedure for finding the origin points: -for the azimuth I go to the left (EST) until I meet the switch which is triggered, I stop the motor and go back at slow speed until I release the switch, at this moment I fix it 'index counter at 0000 then I ask for a move to the right of the value chosen in dial8b3 (200 recommended by me) to move away from this zone. -for the elevation the procedure is quite similar, I straighten the upper plate of the motor until I meet the switch which is triggered, I stop the motor and go back at slow speed until I have the release of the switch, at this moment I set the counter index to 0000 then I ask for an upward movement of the value chosen in dial8b3 (200 recommended by me) to move away from this zone. [/QUOTE]

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