Alas, I am now unable to source all the parts required to produce these, so the production run has come to an end.
I make them to order as and when a order is placed, but there can be delays if I am busy with my paid employment or family.
Usually the biggest delay is if I run out of circuit boards or 3d printed covers, since these are manufactured by a third party and usually have at least a 2 week lead time.
It is getting increasingly difficult to source the dataflash chips, and I believe that I have a years worth of stock left, so watch this space