Feature: 1. BachinDraw TA‑4 is a simple, stylish, accurate and versatile writing plotter, which is capable of writing or drawing on almost any plane. 2. And such writing machine can import Excel table, square grid, word document and write directly. 3. Drawing machine can use your favorite pen, ballpoint pen and other writing tools to handle a variety of graphic writing. 4. Supports 0.01mm accurant engraving. Without the limitation of frame, this engraving machine can operate up to 39 x 20 cm, which is more practical than ordinary engraving machines. 5. This writing machine can be converted into a laser engraving machine, and the writing part can be replaced with a laser module to become a laser engraving machine, which can realize engraving and cutting functions, and it is more practical than ordinary laser engraving machines. Specification: Item Type: Writing machine Material: Aluminum Brand: Bachin Model: TA-4 Working Area: Approx. 21-29.7cm / 8.3 x 11.7in Support Pen Diameter: Below approx. 12cm / 4.7in Motor Model: 42 stepper motor Host Computer Software Support System: For Windows7/8/10 / Android Available Area: Approx. 39 x 20cm / 15.4 x 7.9in . Package List: 1 x Base1 x X Cross-Beam1 x Accessory Bag1 x Power Cord1 x Adapter Note: 1.The laser tube requires the use of a series of our products. You can consult customer service if necessary. The laser modules purchased on the market can not guarantee the success of the conversion.2.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.3.Conversion to laser engraving machine only supports 500mw, 2500mw, 3500mw, 5500mw laser head. The laser head needs to be purchased by yourself.