From time to time we will make changes to our design primarily because of feedback from you, our customers. So, please let us know if you can think of any functional improvements we should consider.
For example: We are considering replacing the half-round finger hole at each end of the frame with an easy to grip block of wood attached to the plywood back. This will make lifting and lowering the split-back pieces much easier (especially on the large frames).
Thanks for your feedback and happy printing.