Bojan,
That is my problem, my overall PE is acceptable, but the errors caused by the intermediate gears make autoguiding and using medium to long focal lengths for imaging impossible. These are the errors I'm hoping the belt drive will fix. Based on my previous experience, I'm pretty sure it will.Try this source for small pulleys. They have the 47 tooth one (only source I've ever found, and then only recently) and the 2.5mm pitch may fit inside the mount. If not I'll flip the motor and put it outside (hence the question I posed about stepper rotation at the beginning of this thread....
http://www.hpcgears.com/
cost for 12 tooth/47 tooth/belt/airmail was only $65
cheers
Gary
Quote:
Originally Posted by bojan
I replaced the original motors and gearboxes (standard EQ6) with new ones, have a look:
http://www.iceinspace.com.au/forum/s...ad.php?t=43823
My plan is to go further and to put belt pulleys inside the mount (I am still not sure how I am going to do it... the space inside is very tight indeed).
But even as it is now, I have smaller PE. The un-even jumps are still there, though (because 47-teeth transfer gears are still there, together with their imperfections).
One day, when belts are in, I hope to achieve smooth PE curve. |