A question about alternative power supply for hp41 series

[wojtek]

(02-25-2016 03:24 PM)Artur - Brasil Wrote:  Actually not expensive, but, I really will try this funny project.
I consider all yours ideas and suggestions, really, but this will be my first contact with such converters and a good experience with them.

It is not complicated at all, at least as for the electronics. I would have made it some week ago but have a problem with that weird connector to fit into the slot on the left side of mine 41c.
Any ideas how to make it? Make a cast of epoxy resin? A mould should be made first.
I even bought a 3d pen, but it is useless for such tasks in my opinion.