New to forum. I was trying to mount a ZWO EAF on my Orion CC8 with a Crawford focuser - the one with the curved saddle - and there wasn't a bracket available. Turned out it was very easy to make one. A simple piece of bent aluminum and 4 short (8mm) spacers was all it took. Getting the spacing correct is key, and accurate hole drilling, but it doesn't have to be super precise to work fine. Make the holes a little big so there is some wiggle room. The 4 new screws are M3x20mm. Anyway, thought I'd post some pics if it might be of help to someone with a similar issue.