Split Marine Tank Filter Roller

Filter paper machine adapted for the Fang Xiaozhang 40 marine tank, uses 7.5cm filter paper and automatically rolls. Other sizes can be adjusted to fit

Due to limited installation space, this split-type filter paper machine, with separate upper and lower parts, was designed to be inserted into the fish tank, suitable for situations with insufficient installation space

Accessories used

one lithium battery + charge-discharge control board, cost 15

one delay timing circuit board, cost 18; (Taobao: Multifunctional Delay Circuit Board)

one N20 geared motor (12GA-N20 3V 3rpm), with adapter, cost 15

one 7mm push button switch, cost 1.5

several 4mm nylon screws

Water level sensing filter paper machines often malfunction, so this time it is simply controlled by a delay circuit. However, mounting holes for a water level sensor are reserved, and after switching to a programmable circuit later, it can be switched to time + water level dual control

You can see my new design, the new version no longer uses screws, and except for the motor part, it can be entirely hardware-free. Supports quick disassembly

https://makerworld.com.cn/zh/models/2300464-xin-kuan-fen-ti-shi-hai-gang-lu-zhi-ji#profileId-2596945