WePlawama22 MKII - Vinyl Record Cleaning Machine

As a passionate vinyl collector, I naturally clean my records wet. It all started with a Knosti. 
In the long run, something more professional was needed. But since I didn't want to spend €500 or more  on a more or less overpriced wet vacuum cleaner, I started to think up my own machine, inspired by other DIY projects.

The machine should be realized as completely as possible in the 3D printer. Seasoned with a bit of electronics. It is controlled by an Arduino Nano. He currently even has some room for expansion. In addition, a pair of stepper motors and driver electronics, as well as two servos and a 12V suction turbine.

Costs, in addition to the filament, a good 100€. Of which a 12V, 10A power supply accounts for the largest chunks. However, the 10A are only necessary to handle the inrush current of the turbine.

See how the machine works by watching the linked video.

This project consist of 80 printed parts. All parts are printed with 50-100% infill with pla. I know, it looks like “Playmobil” in Borg design, but it is modular. If you want to build this machine, feel free to ask me (here or on youtube), if you have any question. Of course you can use your own solution for the vacuum turbine or electronic housing.

I have added some links to the part list (these are not affiliate). So you can see, which kind of part it is.

• update 2023-06-15 - added detailed pictures
• update 2023-06-16 - added detailed pictures from turbine housing
• update 2023-08-09 - added detailed pictures from microswitch vaccumarm
• update 2023-11-02 - correction Fritzing diagram

Partlist electronic:
--------------------

- Arduino Nano      
- LCD Display blue 2x16, with I2C interface    
- Powersupply 12V, 10A ( powersupply ) 
- push button (pcb mount, 4 pcs.)    
- Voltage regulator (step down) 1A for 5V (Arduino, Relais etc.)   
- Voltage regulator (step down) 1A, 9V for Nema17 step motor   
- Vacuum turbine ( examplepart ) 
- PWM-Motor control 5A ( pwm controller ) 
- Servo vacuum arm  (9g SG90 Mini Servo) ( mini servo )    
- Servo brush arm   (9g SG90 Mini Servo)    
- Gear step motor vacuum arm - 28BYJ-48  5V   
- Endswitch vacuum arm ( endswitch )  
- Relais f. Turbine ( relais )   
- Nema17 Step motor ( Nema17 )    
- Stepper Driver A4988     
                                           ------------------
     

Partlist mechanicle:
--------------------

- plywood panel 40x30cm ( panel )
- Knosti Record brush ( replacement part )
- Silikon tube 6x4mm, 4mm inner diameter (0,5m) ( silikon tube )
- 4 mm threaded axle     ( threaded axle )
- 3 mm steel axle ( steel axle )
- Bearing  brush arm ( bearing brush )
- Bearing  brush connect ( bearings )
- Bearing Vacuum arm Motor axle (Kugellager 5x10x16)  
- Bearing  Vacuum arm (2,6x5x3mm, 2pcs.) (bearing vacuum arm )
- O-Ring 97x104x3,5 ( o-ring )

- Srews M3x10 and nuts
- Nuts M4

Arduino code: https://github.com/werner-rh/weplawama.git