Check the listing for details. 3 Axis 1.1F USB GRBL Control CNC Engraving Machine Board+GRBL Offline Controller. Condition: New. Listed at 48.00 USD. 1x GRBL 1.1F 3 Axis control board 1x LCD screen GRBL controller 1x USB cable ​I. GRBL 1.1F,USB port cnc engraving machine control board, 3 axis control Specification:Connection: USB (USB-CH340)Software: GRBL controller, UniversalGcodeSender Input voltage: 12-24VDCMaster chip: atmel 328P (arduino nano)Stepper motor driver: A4988Spindle drive chip: MOSFET (recommendation 12~36V, current : within 10A )Spindle PWM speed: SupportSupport stepper motor: 12V, maximum current of 2A or less is recommended within 1.5A and additional heat. (Any stepper motor 42, 57)Laser engraving: SupportPower Interface: 5.5-2.5mm DC interface SD shows it is SD card condition, turn on power supply after insert SD card, otherwise, it won't work. SD card capacity 4G could be recognized. Press X- or X+ button to switchControl：Press confirmation button to access manually controlling pageFile：Press confirmation button to access file pageSet：Press confirmation button to access setting page On the off-line controller, buttons control corresponding actions.SPN is spindle controlling,should press SPIN. Fan is fan controlling, should press SMOD.Note: To exit this page, should press back button longly. after exit, save the current location as engraving starting point X0Y0Z0 Note: system can recognize max 100 available files one time (***.TXT***.txt***. NC***.nc***.CNC***.cnc***.TAP***.tap could be recognized)，not support files with long name.Press Y+ or Y- to choose files need to be engraved, press confirmation button to access engraving page.Press ok to start engravingIf you want to stop during engraving, press back button longly, then back to the file selection page（machine will not stop at once, as GRBL controller has already saved a part of G code, will stop after carry out completely). The left words show the machine moving distances every time you press the button on the condition of manually controlling, press Y+ or Y- to choose, default 1mm each time.Press X- or X+ for switchover setting.The right words show Communication baud rate setting, default 9600After setting, press confirmation button to save, then press back button to exit setting page.Note: the setting parameters can not be saved on the condition of electricity outage, it will be default value when turn on next time. ShippingPlease open the package and check if there are some damages before sign, if there are some damages,please do not sign and contact us immediately.We ship to worldwide,but if your country’s custom is strict,please contact us before you bid to check detail and confirmed. PaymentImport duties,taxes and charges are not included in the item price or shipping charges.These charges are the buyer responsibility.Payment must be made within 48hours of the auction end time. Problem&FeedbackPlease give us the opportunityto resolve any problem when you have,we concern your problem and we will try our best to resolve it.We are a new member in ebay now,and need understand both of sides.Pls email us before you want to leave any negative feedback. RefundAny reason required for all refund. Item must be in it's original condition and no physical damage,buyer responsible for all shipping cost.When you have the parcel,and not satisfied the goods or it is other problem like as broken,pls tell us the detail reason and provide the photos. Contact usWelcome worldwide customer inquire and questions.If you have any problems after receive the package,pls contact us first,do not leave a negative feedback,we will try to do our best to feedback customer’s email within 1-2 business days,Customer’s satisfaction is very important to us.