Built my lightbox in two days using white foam board and craft glue/pins from the local art store. Also added 4x25W 12V halogen lamps from bunnings. Connected the lamps up in series to a 12V cigarette lighter plug. The light box is about 11" x 11" with a 10" round hole at the front. The front board with the hole is taped on with duct tape so it can easily be removed for maintenance/adding a new backing board. I am really happy how evenly illuminated the backing board inside the box is. I can use it with my 8" newt, 8" SCT, 6" Newt and ED80 by placing the entire light box over the front of the OTA and adjusting the width with a rod and duct tape. Cost me about $50.00 all up.
