ORIGINAL: LesUyeda
''The key is finding/making a tool to cut the slots. ''
Or find a small company that can CNC it for you
For our project (5 1/3th scale D-VII's) we are also making our own Spandau's. The CNC aluminum plates did cost us about $7,00 each incl. material. I can't make it for that money. I have 10 barrels ready now and now we only have to make a mould for the housing.