dmizen
18-02-2015, 01:45 AM
i have a barbells system i acquired (from richardo i think) some time ago and transplanted it onto my 16" geq it runs slewing is ok but tracking appears fast i have to keep correcting the ra by driving the scope east
my original calculated altfullstepsizearcsec figure was 0.84375 this tracked very fast so i have gradually increased the value and tracking has improved i can keep jupiter in a 30mm eyepiece for about 15 mins I'm now at 1.8 i guess i need to be around 2 or 2.25 but this is along way from my calculation
i am reasonably polar aligned
my question is :- is this the most efficient way of slowing the drive down or is there an other way of slowing things down
dcm
my original calculated altfullstepsizearcsec figure was 0.84375 this tracked very fast so i have gradually increased the value and tracking has improved i can keep jupiter in a 30mm eyepiece for about 15 mins I'm now at 1.8 i guess i need to be around 2 or 2.25 but this is along way from my calculation
i am reasonably polar aligned
my question is :- is this the most efficient way of slowing the drive down or is there an other way of slowing things down
dcm