This design can easily control two stepper motors, and I introduced subdivisions to facilitate digital control (mostly manual settings on the market), and uses a lot of modularity, so it is very easy to damage parts such as those caused by electric shock. The stepper motor module and main control can be directly replaced, while the analog components that are not easily damaged are directly onboard.
Using such a board, you can easily develop a practical two-axis gimbal, similar to this, and the price is not too high.
The material list used for the single-axis slide rail I personally designed is as follows:
| Accessories | proposed price |
| For-arduino UNO R3 | 16 |
| A4988 stepper motor driver | 4 |
| v3 engraving machine expansion board | 5 |
| timber | 10 |
| Built-in dual-axis linear guide SGR15 is 0.5 meters long | 42 |
| Lock the three-wheel slider | 45 |
| 100mm*100mm*2mm aluminum plate | 10 |
| 9V1A power adapter | 4 |
| Second-hand stepper motor disassembly | 8 |
| 6mm timing belt 2 meters | 7 |
| 2 aluminum alloy synchronization wheels | 4 |
| Screw nut | 8 |
| total | 163 |
The final effect is that I only installed one axis
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