Quote Originally Posted by Shuggie View Post
Thanks for your kind comments - the collar's increased overall diameter was one of those little design changes necessary to accommodate some really nice cap head bolts, which do look nice when the collar is fitted. The SS armboard is the only one that requires any modification before my collar will fit.
As promised, some pics of the finished item, well, nearly finished
Please excuse the mobile telephone images - camera is at home.

First dismantled the Sound Supports armboards - they are two pieces held together with some nifty captive nuts and stainless socket round head screws.
The top part of the plate is where the hole needs to be enlarged. A 60mm 'FLAP Wheel' was called into service. Not particularly difficult, and reasonably easy to keep central, which IS important.







Made myself a jig to hold both the parts while I re-linnished them by hand with 800grit w&d paper. This is because I want a finer linnish than supplied and I'm also going to have them anodised black.





Put them back together, carefully put everything into place and there you have it - they do fit - albeit with less than .5mm to spare!



If Sound Supports would care to adjust the size of the mounting ring and move their three bolt holes out by 1 - 2mm then everything would be dandy. My guess is this would be easy to achieve as it "looks" to me like the items are made on a C/A turret punch, so just a few numbers need changing.

I'm happy with my results so far

As an 'aside' getting to the locking screw is still possible - just! you would not want the collar any lower or the top plate any thicker.