Ring light flash adapter for Canon Powershot SX1 IS

This build fits perfectly from my printer, the thread on the screw-in for the canon lens doesn't really fit by screwing, more likely you will have to push it in.
First time around, while trying a prototype to fit, I got some lens errors until I removed it, but in later builds it didn't happen anymore.
Outer diameter of powershot end is about 51.5mm, the diameter for ring light / filter is 49mm.
Mechanically, it works perfectly; with my model of flash, when zoomed all out I can see the inner c