I cut the T Brace up by Electrico so that it would work on the right of the frame. The T Brace worked so well ... why fight a fantastic thing? I kept it minimal, although I could have done a wonderful rounded corner. I added the side and a wall so the gap wouldn't be visible.
It is possible to publish standing as it is or on its flat side (with supports everywhere). I chose to print on its flat side with supports everywhere. As one of the images shows - I left a layer of support material behind for the tightest.
Important note: My A8 has the paper still on this fit snug, and the frame. It may require adjusting for a paperless acrylic frame, since I can't try this on an Anet A8 without paper.
See other side:
Whatever settings you used to publish the T Brace of Electrico can be used here.