Classic battery door latch 3d model?

[Nate Martin]

(01-02-2017 02:25 AM)Sylvain Cote Wrote:  What's the difference between these two modules ?
- HP-71 Front Port Module Sysrom3 (4YQCBSGSP)
and
- HP-71 Front Port Module Sysrom4 (754YSCSR5)

Also, I am not quite sure I understand the difference between these ?
- HP-41 Battery Cover LiPO Top (TE6GHF473) + Bottom (ABV4TJ869)
and
- HP-41 Battery Cover LiPO Pt 3 (V4A78FP7C)

- HP-71 Front Port Module Sysrom3 (4YQCBSGSP)
and
- HP-71 Front Port Module Sysrom4 (754YSCSR5)

sysrom4 I added small nubs on the side to increase friction to keep in place better if I don't have the jumper wire in place for the fram module (originally designed for the fram sysrom jumper, I just use them for all missing ports) and also includes a small opening to place a switch for the jumper

the HP-41 Battery Cover LiPO Top (TE6GHF473) + Bottom (ABV4TJ869) makes a complete enclosed shell that can be glued up, the HP-41 Battery Cover LiPO Pt 3 (V4A78FP7C) is a complete shell open at the bottom to allow more space.

Next time i take apart a HP75 I will get some inner dimensions and make the other covers.