Small Engraver (SE120)

This is my second laser engraver, i call it "SE120" for "Small Engraver" with 120x120 for the bed size.

Technical informations:
Bed size: 120x120mm
Fast Moving Speed: 500mm/s more is possible
Speed Engraving: 0,1mm/s to +/-10mm/s
Full Magnetic Bed: Yes
Led built-in: Yes
Air assist: Yes
Bluetooth: Yes
PWM module: Yes
Limit switch: Yes
Bottom ambient light: Yes
Laser: 1500mW (Blue-Purple Light 405nm)
Step motor: Nema 17 (Brand "StepperOnline" 42x42x20mm)
Machine size: Wide=225mm, Deep= 225mm, Heigh= 219mm
Glasses Protection: Compatible with Blue-Purple Laser Light, between 200-540nm

In this version i fixed all the faults of the BE100.

**10 improvements and novelties are emerging such as**:
**1**) Real bed area work 120mm x 120mm (118mm x 118mm with limit switches option)
**2**) Full magnetic bed (Interchangeable with flexible aluminium surface for cutting projects)
**3**) Limit switches
**4**) Air assist
**5**) Bluetooth
**6**) PWM/TTL module
**7**) Botto