Re: 60 Degree DIY Mid Hi
I thinking there are three options …
Firstly I am going to try 16mm hoop pine ply which weighs slightly less than the prototype. In addition I will make the angled corners out of 10mm ply because the unsupported width is so small.
Then I may just use a grill to cover the top and bottom MF horn outlets and leave the HF exposed. You could make the HF horn mounting plate and the side ofthe box flush at that point - a bit like this. http://www.rcf.it/image/image_gallery?uuid=dfa052a3-65f2-4870-b2a5-2f3a32509225&groupId=216492&t=1360141234351
Alternatively increase the width of the box to 396mm, machine 3mm off either side of the XT1460 and route the wall of the box down to 10mm either side of the horn.
Then route a step in the front edge of the box to accommodate a 1.6mm perforated / punched metal grill. It could be screwed or bolted in position also strengthening the front edges of the horn mouths.
The last option is the make the grill rap around the out side of the box like this http://www.audiolights.eu/electronics/images/rcf-tt22a-11.jpg
… and yet a again – thanks Don for the 3 D sketch up drawings
