Type D (No 1) Alkaline battery cell counter weight 1.3Kg
thingiverse
It's also the counter weight for replacable battery for travel if the Li-ion battery cell cannot be accepted to hand carry on the airplane.The alkaline is 12WH/unit. So the total 8 cell can have 96WH which can be consist one AM3 mouint with asi AIR mini with DSLR 4+ hours observation.The files contains 2 inner rod dimensions: 18mm (for takahashi EM mounts) and 20mm (for vixen/Skywatcher/Ioptron/ZWO mounts).The springs of D-cell can be bought on amazon or orther commersion shops. Here is one of links to buy on amazon:https://a.co/d/8MXJy0F
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