4 inch water mill

# 4-inch water mill
### The open source warehouse
model and other files are maintained in gitee. If they are not in Lichuang, they will maintain a copy
[git warehouse](https://gitee.com/vip/4-inch- water-mill)
### Introducing
a water mill that can drip water to polish jade and engrave knives. Generally, dry grinding machines will have a lot of dust. Adding a water grinder can be used for water cooling. Secondly, the dust can be brought into the water, which can effectively keep the desktop clean. The machine supports 4-inch diamond grinding discs and other angle grinder accessories. It is very practical for polishing stones, wood, and 3D printed parts.
The machine supports forward and reverse rotation and stepless speed regulation.
Open source 4-inch water mill, based on 887, 775 motor, angle grinder sleeve, stepless speed regulation, peristaltic pump.
![1.jpg]
![4.jpg]

### Polishing effect
![Grinding effect.png]

###
The size of the spindle motor 887 motor is as shown in the figure below
![887 motor.jpg]

### Circuit part
![ Circuit.png]
### Accessories information
Name | Remarks | Description
:---|:---|:---
M3*25 self-tapping screws | several |
M5*14 inner hexagon | 2 pieces
4*6mm | Transparent Hose
6*8mm | Transparent hose
12v10A or 24v10A is also available | Switching power supply
and some wires |! [20230323150231.png] 4-inch diamond grinding disc |! [20230323145145.png] Diameter 4mm plastic straight-through |! [20230323144949.png] Dongcheng 100A pressure plate|![pressure plate.png] High power 887 motor|![887.png] M10-5MM connecting rod set|![shaft sleeve.png] 304 stainless steel pagoda joint|![drainage.png] peristaltic pump|![ Peristaltic pump.png] E-TEN1322 6-pin 3-position switch|![20230323144747.png] 12mm waterproof cap|![20230323144810.png]
### 3D printed slice setting
parts | Support | Settings
:---|:-- -|:---
Main body|Required|![20230323145324.png] Top cover|Required
base|No need to support
waterproof ring|No need to support
~~~~
Other information and accessories will be completed later. . .