3 p packs are done. Just waiting on this printer.
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have you tried printing it sideways ? if it print well you could make even more at once
Nice,
I started something similar 2 years ago. But after assembling the first p-group I went for nese.
The original plan was to have 1S9P Stacks which are 3.7V * 3A * 9=99.9Wh, so just inside of most of the airport/airline limits (Lufthansa e.g. says: nothing over 160Wh, max 2x up to 160Wh, unlimited <100Wh).
Thats what i came up with:
Small PCB with XT60 (one for each pole, so up to 2x 60A for the pack), Pinheaders for the balancers with small fuse on the backside, small conical elevations, so the stacked groups “find” each other, epdm for compression, and a gasket on the + pole, so that the risk of shorts is minimized.
Over all it did work, but problem was the assembly + compression: The 3D prints are so flimsy that you need endless screws, and still the ends (where no screws are) bend upwards. Also I did not trust the meshed cable to stay in place and not short the cells on the + pole.
How are you keeping the compression?
How will connect the p-groups?
Edit:
If you wana have a look into it: https://a360.co/3iccGnf PW: giga
Full pack looks something like this (different versions mixed 
)
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