U-adapter arrived

This is very light weight and strong.  It's originally for GP, and I've to enlarge the polar scope bore by 5mm.  I planned to do it slowly by sanding away those metal, a hard work but it should work out better than any other way.

The mounting holes have to be modified as well, and also to fix that DEC slow motion control in place.  Another side could be used to fix a 3/8" ball head directly.

Once this is done, I can start doing some wide field imaging.

I'm still waiting for good bargain on second hand NGF-S or NGF-CM.  The delivery of Solarmax is another unknown since the local dealer said Meade is having problem.