a next day of testing!
I have also asked my question on EQMOD forum
Chris his reaction was to look in the same direction as you pointed:
“You shouldn't have to use the custom tracking button to move at sidereal. If gotos work fine but trackig doesn't then It sounds to me as though there is something wrong with the ASTROEQ configuration settings - specifically the sidereal speed or "iVal" parameter. This value is read by EQMOD on startup and is the value written back to ASTROEQ whenever the mount is commanded to move at sidereal rate. You may need to post for help on this on the ASTROEQ support forum.”
I have a wormwheel homemade (photo)
it is an aluminum wheel / 120mm round with thread M12x1. 75 ,powered with a M12x1.75 thread
my calculation was: circumference 118x 3.14 divided by 1.75 pith =211
so I used 211 :1 in the AstroEQ configuration
motor shaft 15 T/ worm shaft 40T(2.666)
Result: sidereal speed too low
This morning I have tested: 367: 1(3,14x117)
Result: sidereal speed right!!
I do not understand exactly what is wrong with my calculation
but glad
It’working!!
There is a warning in the configuration
Tom ,can you explain to me what this means?
Gr,Henk