性能高，成本低，基于并口运动控制，用于CNC雕刻。它可以运行在Vanilla Arduino (Duemillanove/Uno) 只要它配备了Atmega 328型芯片。 控制器由C编写并优化，利用了AVR 芯片的每一个灵巧特性来实现精确时序和异步控制。它可以保持超过30kHz的稳定、无偏差的控制脉冲 它接受标准的G代码而且通过了数个CAM工具的输出测试。弧形、圆形和螺旋的运动都可以像其他一些基本G代码命令一样完美支持。函数和变量目前并不支持，但是会作为预处理器包含在将来发布的版本之中。 Grbl 包含完整的前瞻性加速度控制。它意味着控制器将提前16到20个运动来规划运行速度，以实现平稳的加速和无冲击的转弯。(High performance, low cost, based on parallel motion control, used for CNC engraving.It can run in Vanilla Arduino (Duemillanove/Uno) as long as it is equipped with Atmega 328 chips.The controller is written and optimized by C, using every dexterity feature of AVR chip to achieve precise timing and asynchronous control.It can maintain a stable, unbiased control pulse of over 30kHz and accept the standard G code and pass the output test of several CAM tools.Arcs, circles, and spirals can be as well supported as other basic G code commands.Functions and variables are not currently supported, but will be included as preprocessors in future releases.Grbl contains a complete predictive acceleration control.It means that the controller will plan the running speed 16 to 20 times in advance to achieve a smooth acceleration and a no-impact turn.)