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Introduction: The mini CNC engraving machine laser engraving machine is suit for make non- metal processing such as plastic , wood , acrylic , pvc, pcb, wood or the like material , etc.And airframe adopt profiles + plastic ï¼small size, light weight , USB interface , open source GRBL control. Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328. The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain up to 30kHz of stable, jitter free control pulses. It accepts standards-compliant g-code and has been tested with the output of several CAM tools with no problems. Arcs, circles and helical motion are fully supported, as well as, all other primary g-code commands. Macro functions, variables, and most canned cycles are not supported, but we think GUIs can do a much better job at translating them into straight g-code anyhow. Grbl includes full acceleration management with look ahead. That means the controller will look up to 18 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering. Parameter: Dimensions: 260 * 240 * 220mm Stroke: 160 * 105 * 30mm Screw: Professional T8 screw, lead 4mm, double copper nuts eliminating backlash Stepper motor: 12V, 1.3A, 2.1Î©, 0.25N.m Spindle: 12-36V 7000r / min Power: stepper motor (12V 3A), the spindle (24V 5A) Countertops: 100X180mm ãã Package Included: 1 x set of Mini engraving machine (not including the laser head)