I ran into what appears to be a fairly common problem with the Texas Peripherals internal floppies in my Model III, which is that the bracket cracked that holds the little pins that keep the front door latch connected to the internal arm that clamps the disk. The white plastic pins would no longer stay put. Another post suggested epoxy, JB Weld, wire wrapping, etc., as a means of fixing it. I made a few too many attempts with the epoxy before arriving at the conclusion that it was never going to hold.
In the end I simply used Fusion 360 and a micrometer to model the original part and then 3D printed a replacement. This turns out to be a perfectly fine solution and appears to perform as well as the original part. If anybody else is in need of the model files for printing, or just needs a replacement or two printed and mailed directly, just PM me.
I don’t know if this piece of the door mechanism was identical in the other drives from Tandon or Shugart that Tandy sold, but I’d be happy to try to model other parts if there were differences and someone can supply an original, or detailed measurements with a calipers as needed.
In the end I simply used Fusion 360 and a micrometer to model the original part and then 3D printed a replacement. This turns out to be a perfectly fine solution and appears to perform as well as the original part. If anybody else is in need of the model files for printing, or just needs a replacement or two printed and mailed directly, just PM me.
I don’t know if this piece of the door mechanism was identical in the other drives from Tandon or Shugart that Tandy sold, but I’d be happy to try to model other parts if there were differences and someone can supply an original, or detailed measurements with a calipers as needed.