is it possible you can gain any grasp on the focuser side by reducing the coupler overlap on the telescope side?
Ok, I tried this, but to no avail. Problem is once I slide the coupler a mm or two off the scope's focuser shaft, the grub screw hole in the focuser housing no longer matches up, so I can't tighten it up again.
Fortunately they are easy to find on Amazon. Search for xmm flexible coupler. Perhaps you can find a longer coupler that will make it work.
Sadly I can't find any 5mm to 5mm coupler that is any different in length to the one I have (25mm)
Choose where you want the holes to be in the bracket, file away or cut away the bracket at those positions, and use large washers (or a plate) to bolt through. Brackets are made to be modified.
I usually make my own brackets from angle aluminum from the local hardware store rather than deal with brackets that never seem to fit.
Thanks. Many of you guys seem to be much more practically skilled and tooled up than I am. I don't have that kind of skill or tools unfortunately, so I have to rely on what I am sent by suppliers.
Anyway, the result is probably ok, there is only a 4mm or so separation between coupler and focus motor. Hopefully that will still allow enough overlap with the shaft to get it to work