Affordable Crayford focusers???

Does anyone know of an affordable 2" crayford focuser? JMI's NGF-DX3 is
$159, and that is a lot for me. Their RCF (Reverser Crayford) is $99 ($79
in a kit). $79 is more my style, but its an extra $20 for the 1.25"
adapter, so I'm back up to $99. Does anyone know if the RCF is any good?
Even cheaper would be better, I guess I'm looking at $50-$75.

I have no mechanical skills to build one.

I want it to replace the crappy plastic rack & pinion on my 8" Meade Dob.
I would prefer to do it without having to change the location of the
focuser or secondary, so a longer draw tube will probably be neded too.

Any suggestions?

thanks

bob

in a kit). $79 is more my style, but its an extra $20 for the 1.25"
adapter, so I'm back up to $99. Does anyone know if the RCF is any good?
Even cheaper would be better, I guess I'm looking at $50-$75.

I don't think you are going to beat that $79+20 price for the RCF.

I have a 2 inch RCF, I think its a pretty nice focuser, handles a pretty good
sized eyepiece, is nice an smooth and tracks well.

Jon Isaacs

in a kit). $79 is more my style, but its an extra $20 for the 1.25"
adapter, so I'm back up to $99. Does anyone know if the RCF is any good?
Even cheaper would be better, I guess I'm looking at $50-$75.

I don't think you are going to beat that $79+20 price for the RCF.

I have a 2 inch RCF, I think its a pretty nice focuser, handles a pretty good
sized eyepiece, is nice an smooth and tracks well.

Jon Isaacs

bob wrote:

Does anyone know of an affordable 2" crayford focuser? JMI's NGF-DX3 is
$159, and that is a lot for me. Their RCF (Reverser Crayford) is $99 ($79
in a kit). $79 is more my style, but its an extra $20 for the 1.25"
adapter, so I'm back up to $99. Does anyone know if the RCF is any good?
Even cheaper would be better, I guess I'm looking at $50-$75.

I have no mechanical skills to build one.

I want it to replace the crappy plastic rack & pinion on my 8" Meade Dob.
I would prefer to do it without having to change the location of the
focuser or secondary, so a longer draw tube will probably be neded too.

Any suggestions?

I've been curious about Orion's helical fine focuser at $45.
http://tinyurl.com/3498f
Don't know if it would help you, Bob (or me FTM).
Anyone else familiar with this in general, ie function and quality?
More specifically, does the diagonal turn when the focuser is adjusted,
or does it stay in the same plane?

Thanks,
Shawn

bob wrote:

Does anyone know of an affordable 2" crayford focuser? JMI's NGF-DX3 is
$159, and that is a lot for me. Their RCF (Reverser Crayford) is $99 ($79
in a kit). $79 is more my style, but its an extra $20 for the 1.25"
adapter, so I'm back up to $99. Does anyone know if the RCF is any good?
Even cheaper would be better, I guess I'm looking at $50-$75.

I have no mechanical skills to build one.

I want it to replace the crappy plastic rack & pinion on my 8" Meade Dob.
I would prefer to do it without having to change the location of the
focuser or secondary, so a longer draw tube will probably be neded too.

Any suggestions?

I've been curious about Orion's helical fine focuser at $45.
http://tinyurl.com/3498f
Don't know if it would help you, Bob (or me FTM).
Anyone else familiar with this in general, ie function and quality?
More specifically, does the diagonal turn when the focuser is adjusted,
or does it stay in the same plane?

Thanks,
Shawn