Khay đựng pin C / Khay lưu trữ (Vase Mode)

Inspired by the brilliant used of vase mode on his AA and AAA battery storage trays, here , I made a set for D bateries, and another for C batteries.  These use the same vase mode technique to print very quickly while using very little filament.  For C Batteries, I provided 2 files, one for 18 batteries and one for 24 batteries.

Print in vase mode, with 4 bottom layers for best results.  I used PLA for my prints, but any filament should work just as well. 

Since these are in Vase Mode, be careful when lifting them while full of batteries.  C and D batteries are pretty hefty, and it would be possible to snap the tray.  If you do need to lift the tray regularly, print in non-vase mode.  It'll take longer and use more filament, but it will also be a LOT stronger.