Crawmach focuser for Meade AR6
Posted 24 March 2013 - 11:50 AM
Has anyone upgraded an AR6 with a Crawmach focuser? Thinking about this option for my AR6 and wondering about upside/downside. Photos would be much appreciated as well.
Posted 24 March 2013 - 04:38 PM
Posted 24 March 2013 - 05:26 PM
I've been running that set-up for about a year and a half.
The Crawmach is certainly nicer then the original focuser.
I'd rate it as adequate but not exceptional.
Posted 25 March 2013 - 06:04 PM
I think my biggest concern right now is how much the balance of the scope would be affected by the not having a counterweight. Any comments on the lack of a counterweight? Is the Crawmach heavy enoufh to balance the scope pretty well? I want to avoid having the scope sit lowin the saddle and have to endure all the extra motion of the eyepiece when pointing to different areas of the sky.
Posted 25 March 2013 - 06:11 PM
Posted 25 March 2013 - 07:01 PM
Posted 25 March 2013 - 07:52 PM
Posted 25 March 2013 - 09:30 PM
Posted 25 March 2013 - 11:08 PM
The balance works out well.
I typically use a 2" diagonal and the balance point is about the center of the tube with a larger eyepiece.
Posted 26 March 2013 - 02:56 PM
Edit: I know I'd posted pictures of this, they are here
Posted 26 March 2013 - 05:32 PM
The original version of this focuser that I received had one set screw for the compression ring and didn't grip the Baader diagonal well at all, I actually almost lost it a few times. I returned it to Crawmach and Dan added two additional set screws which resolved the issue. Dan advised that all newer models would include the 3 set screws, but I recommend to verify this before ordering.
I am planning on order a few of his 1.25" focusers for some vintage 60mm scopes.
Posted 27 March 2013 - 07:29 PM
Thanks for all the replies. I did consider Moonlight focusers. A friend has one and they are extremely nice, but a bit expensive for me. I am a visual observer so I was just looking for something better than stock. I like focusers that do not shift and have smooth action. I'm thinking the improved Crawmach will provide for my needs.
Danny and I have E-mailed and he mentioned not hollowing the inside of the backplate as much. This is one way to increase weight for balance. I think I may weigh my current focuser to give him a better idea what it is currently.
Posted 30 March 2013 - 09:18 PM
I have an AR6, I wanted a better focuser than the stock Meade single speed. I contacted Russ Tanton at Explore Scientific (since retired), and asked about the rear assembly for the ES AR152 (achromat).
Final result? I got the 6" adapter and the two speed Crayford on my AR6 now. It's capable of holding my 17 Ethos as well as my Denk Big Easy with a pair of 25mm Plossls.
Maybe a call to Scott Roberts would be in order for one of these for your scope, for when you don't bring out the ES 152 triplet.
Posted 01 April 2013 - 05:52 PM
I actually thought about the possibility of obtaining the current ES AR152 focuser but never investigated. Too late for me now I ordered the Crawmach.
Posted 01 April 2013 - 06:30 PM