After some really unsatisfying guiding results in the last few weeks I saw me forced to find my luck in hypertuning my Sky-Watcher HEQ5 PRO.
Since there are already awesome instruction videos out there, i am not going to describe the process here. Instead I will link the videos I used as instructions.
My reasons for hypertuning
- I was no longer able to repeat good guiding results. Sometimes I did guiding <1″ and sometimes >1,5″.
- I had a lot of break outs. I was not really able so get any 5 minute exposures without guiding problems.
- I saw one of the reasons in difficult balancing due to phyical resistance.
- Backlash was not the issue.
Used material for hypertuning
- 4x ball bearings SKF 628/9-2RS1
- 6x ball bearings SKF 6006-2RS1
- 2x ball bearings SKF 30205 J2/Q
- Grease OKS 495
HEQ5 Pro Hyper Tune. Get the best out of your Sky-watcher EQmount. Now guiding 0.4 total rms – YouTube
- Frosth Astrophotography
SkyWatcher HEQ5 Pro hypertune – complete rebuild with SKF ball bearings – YouTube
I have nothing to add to this instructions, since they explained everything I needed.
The only thing not mentioned in both videos is doing a polar scope calibration after reassambling the mount.
Results after hypertuning
The first important result is, that the physical resistance is very much better on both axis than before. I got exactly the same results as shown in both instruction videos. The best part about it, in my eyes, is that it is a lot easier now to find a good balance on both axis.
At the first evening after hypertuning I was able to guide with <0,5″. I think it was worth it.