Agitation Machine

This machine significantly shortens and simplifies the acid bath process in PCB assembly at home.

You can also use it for washing parts, or even mixing and rinsing things in the kitchen.

Depending on the size of the mixing bowl you will be using, you can adjust the tray to your desired size.

You can easily adjust the shaking speed from slow to fast.
Considering my years of experience and needs in PCB manufacturing,

I have created a design that will greatly simplify the work of an electronics engineer.

In the manufacturing of the machine, I have done my best to ensure the most accurate, easy, and fast printing suitable for a 3D printer.

No support structures are needed in the manufacturing of the parts.

I also believe that I have provided the same ease of production on the electronic and mechanical sides. I used a Nema17 stepper motor. The reason for using this motor type is that

stepper motors provide a very strong torque and produce relatively less noise.

Also, even under possible stresses, the probability of damage to the gears is negligible. In case of stress, the stepper motor will take over the stress in the magnetic field, and no mechanical part will be damaged. On the electronics side, I used a DRV8825 stepper motor driver, which is readily available and inexpensive on the market.
I didn't use a microprocessor in the circuit design, which means there's no need for programming. The electronic circuit design is quite simple; the PCB design is included in the files. A 12V 1-2A DC power supply is sufficient.

Product components are ready for printing as separate files.

No support structure is needed.
Parts are printed separately; you can use any colors you want.
Layer height 0.2mm
Walls 6 layers
I used the filaments I had on hand
PLA in the base
ABS in the body
Other parts PETG
You can use any filament you want
Electronic components;
The PCB design is quite simple and ready-made in the file.
It is important that the bearings fit tightly during assembly.
If they are too tight, slightly heat the part with a hair dryer; the heat will make it easier to install the bearings.
Assembly instructions are available in the file.
Also, if you have any questions, you can write to me.