Thank you so much for sharing this informative video. I am also having same setup. BRESSER Messier EXOS-2 EQ GoTo Mount + BRESSER Messier AR -102S / 600 Refractor + ZWO 120mm Guide scope + ZWO mini mono camera + Cannon 7D mark ii. I have observed on my current setup I cannot able to take long exposure photos (45sec max). So if I follow your instructions (as per video) then will I able to take longer exposure photos of 2/3 minutes.
Super job I stripped an EQ5 mount & re-greased it etc but it still guides like crap your Bresser mount seems a bit better made, on another note I've fitted an onstep kit to a CGE pro so hope to get that in the observatory soon. Here's to more clear skies.
I must say the white (SW) EQ5 with stepper/belt mod and OnStep works really well, but this EXOS-2 looks even better made so might try to pick one up and compare.
@@whyf16uy Thanks so much. I do intend to hypertune this mount. Remember years ago they had the LXD55 hypertune DVD? I had that DVD, but 20 years on, and a move to a new home saw it get lost somewhere. Your video really helps. A thumbs up for sure and thank you.
Though, im a super amature visual astronomer, when i've got EQ-3 used in order to replace shitty stock fork AZ mount, as a guy with reasonable understanding of mechanisms, i've noticed that as a piece of machinery, this mount is uhhhmmmm...behaving weird: stiff rotation, quite a bit of stopping power on axises and so on and so forth. I've disassembled it and what i've seen is just wow: not a single rigid bearing- all it has is gears acting as axial support and some fiber/plastic washers where gears rests on a housing. At that moment i found a video very similar to yours where some guy replaces everything he can with industrial low friction rings and needle thrust bearings that magically fit this mount "bolt on". Now i have EQ-3 for super cheap with slightly enhanced load capacity (bearing are rigid and wont deform) and significantly smoother rotation. Sure thing, initial lack of ball bearings doesnt allow axises to free spin like yours, but anyway its a success. Now im consider to buy EQ-5 type mount and now your video is the bliss. Thanks a lot.
Hey from Germany. Got the same mount. Do both axis feel the same when turning on the worm gear by hand? RA goes very smooth, on Dec its a little sticky. And the adjustment of the worm gear on dec is much harder, 1/16 of a turn changes it to stuck or extreme backlash 😮
Now that you mention it, the DEC has always given me more trouble than the RA. Probably not as much as you though. During guiding it will work great for a while then go wacky for a minute, then go back to normal. Not sure if it's periodic or just a bad spot on the ring gear.
@@whyf16uy found out its somehow related how hard the axis in clamped. Think the Ring gets deformed. Also it seems to related to axial Position of the Ring with the gear. The Black Spacer Has a notch. Is the notch orientated to the bearings or to the gear??
really great video! Thank you for sharing, now i can clean up my exos 2 too. I have a question, i opened my DEC axis and cleaned up, regreased and reassembled it, but when i put the reteiner ring all the way in, my DEC axis become really stiff i notice you make 2 hammer punches in the DEC head to came in and i didn't do it, thinking i should do it too, maybe my DEC axis isn't all the way inside the housing? Anyway, really good guiding using a 8 inch!
Are you talking about the ring with the set screws? If so I just barely tighten it enough to contact the bearing. Not very tight at all, just enough so it doesn't slide back and forth. But yes the rubber mallet helps to make sure it is seated.
@@whyf16uy yep, that screw, I will disassembly the Dec this week and make like your video By the way, thank you! Really good guiding you got with your mount, isn't? Do you still using the 8 inch reflector?
Hi Great video! :) Very pedagogical. If I can ask, since you have experience - the worm gears at 22:45 - I have taken my mount (Bresser Messier HEQ5 exos/2) apart to try and fix the tracking. Now, I noticed that when I turn the cog wheel (mine has cog wheels), where you have your right hand at 22:49, it turns with a slight resistance and it "hacks" a bit, i e does not turn smoothly. Is that normal or is it possible that the worm gear ball bearings are worn/damaged? Hope you have clear skies now :)
Mine turns freely. Sounds like you have a bearing problem or something is bent (shudder). I think the bearings are the same kind you can get for skateboards. They are not too expensive.
Pretty much everything default except in advanced settings on RA I use Predictive PEC (ala Cuiv) and I use 0.5 second exposure duration on the main page. If I go longer it seems to start jumping around.
Guider is connected to the PC and I choose phd2 as the guider in NINA. The guide camera and mount are connected to phd2 first then just choose phd2 as the guider in NINA.
Thank you. The worm gear adjustment was very clear and useful.
Glad to be of assistance
Good video👍 Can you tell me if this mount can attach a pipe weighing 15 kg?
Thank you so much for sharing this informative video.
I am also having same setup. BRESSER Messier EXOS-2 EQ GoTo Mount + BRESSER Messier AR -102S / 600 Refractor + ZWO 120mm Guide scope + ZWO mini mono camera + Cannon 7D mark ii.
I have observed on my current setup I cannot able to take long exposure photos (45sec max).
So if I follow your instructions (as per video) then will I able to take longer exposure photos of 2/3 minutes.
All I can say is that I am taking 5 min subs with my setup. I guess it depends how good of shape your worm gears are in.
@@whyf16uy Thank you for the clarification. Let me try serving my tracker and will share you with the results.
I really hope it helps
Super job I stripped an EQ5 mount & re-greased it etc but it still guides like crap your Bresser mount seems a bit better made, on another note I've fitted an onstep kit to a CGE pro so hope to get that in the observatory soon.
Here's to more clear skies.
Big fan of onstep
I must say the white (SW) EQ5 with stepper/belt mod and OnStep works really well, but this EXOS-2 looks even better made so might try to pick one up and compare.
Looks good but no links to the bearings.
Thanks for that. They are there now.
I love this thank you! I have a Meade LXD75 mount. Are they identical in terms of mechanical parts? They look viritually identical.
I think they are awfully close. I had a LXD55 before this and it had teflon "bearings". The 75 upgraded to real bearings.
@@whyf16uy Thanks so much. I do intend to hypertune this mount. Remember years ago they had the LXD55 hypertune DVD? I had that DVD, but 20 years on, and a move to a new home saw it get lost somewhere. Your video really helps. A thumbs up for sure and thank you.
@@emptyroads7094 I have that video
Though, im a super amature visual astronomer, when i've got EQ-3 used in order to replace shitty stock fork AZ mount, as a guy with reasonable understanding of mechanisms, i've noticed that as a piece of machinery, this mount is uhhhmmmm...behaving weird: stiff rotation, quite a bit of stopping power on axises and so on and so forth. I've disassembled it and what i've seen is just wow: not a single rigid bearing- all it has is gears acting as axial support and some fiber/plastic washers where gears rests on a housing. At that moment i found a video very similar to yours where some guy replaces everything he can with industrial low friction rings and needle thrust bearings that magically fit this mount "bolt on". Now i have EQ-3 for super cheap with slightly enhanced load capacity (bearing are rigid and wont deform) and significantly smoother rotation. Sure thing, initial lack of ball bearings doesnt allow axises to free spin like yours, but anyway its a success. Now im consider to buy EQ-5 type mount and now your video is the bliss. Thanks a lot.
Yes I had an LXD55 mount previous to the EXOS and it had the same plastic and teflon bearings. Not good.
@@whyf16uy As is, can this mount work with a C9.25 or is that too much ? Or do I have to go with a celestron C8 to be on the safe side ?
Cheers
@@thesteammachine1282 I don't know if I'd go heavier than my 8 inch meade. I have to get it precisely balanced to even get it to track decently.
Hey from Germany. Got the same mount. Do both axis feel the same when turning on the worm gear by hand? RA goes very smooth, on Dec its a little sticky. And the adjustment of the worm gear on dec is much harder, 1/16 of a turn changes it to stuck or extreme backlash 😮
Now that you mention it, the DEC has always given me more trouble than the RA. Probably not as much as you though. During guiding it will work great for a while then go wacky for a minute, then go back to normal. Not sure if it's periodic or just a bad spot on the ring gear.
@@whyf16uy found out its somehow related how hard the axis in clamped. Think the Ring gets deformed.
Also it seems to related to axial Position of the Ring with the gear.
The Black Spacer Has a notch. Is the notch orientated to the bearings or to the gear??
@@dirkg.950 I'm sorry I don't recall a notch
really great video! Thank you for sharing, now i can clean up my exos 2 too.
I have a question, i opened my DEC axis and cleaned up, regreased and reassembled it, but when i put the reteiner ring all the way in, my DEC axis become really stiff
i notice you make 2 hammer punches in the DEC head to came in and i didn't do it, thinking i should do it too, maybe my DEC axis isn't all the way inside the housing?
Anyway, really good guiding using a 8 inch!
Are you talking about the ring with the set screws? If so I just barely tighten it enough to contact the bearing. Not very tight at all, just enough so it doesn't slide back and forth. But yes the rubber mallet helps to make sure it is seated.
@@whyf16uy yep, that screw, I will disassembly the Dec this week and make like your video
By the way, thank you! Really good guiding you got with your mount, isn't? Do you still using the 8 inch reflector?
Hi
Great video! :) Very pedagogical.
If I can ask, since you have experience - the worm gears at 22:45 - I have taken my mount (Bresser Messier HEQ5 exos/2) apart to try and fix the tracking. Now, I noticed that when I turn the cog wheel (mine has cog wheels), where you have your right hand at 22:49, it turns with a slight resistance and it "hacks" a bit, i e does not turn smoothly. Is that normal or is it possible that the worm gear ball bearings are worn/damaged?
Hope you have clear skies now :)
Mine turns freely. Sounds like you have a bearing problem or something is bent (shudder). I think the bearings are the same kind you can get for skateboards. They are not too expensive.
What PhD2 guide settings do you use on your exos2 mount ? Thank you for these videos.
Pretty much everything default except in advanced settings on RA I use Predictive PEC (ala Cuiv) and I use 0.5 second exposure duration on the main page. If I go longer it seems to start jumping around.
Mallet is the best tool
Sometimes you gotta do what you gotta do.
Hi! Could you tell me how many pieces of which bearing are needed? Thank you!
One of each. 4 bearings total.
@@whyf16uy thanks a lot! 👍
How to you use this mount with phd2? Guider > PC > guider > mount or Guider > PC > mount?
Guider is connected to the PC and I choose phd2 as the guider in NINA. The guide camera and mount are connected to phd2 first then just choose phd2 as the guider in NINA.
@@whyf16uy what cable do you connect mount to pc
Micro USB from the Onstep controller to full size USB on the computer