CNC Controller Board on USB Compatible MEGA 2560 with LPT OUT for Driver

Description: CNC Controller Board on USB Compatible MEGA 2560 with LPT OUT for Driver The description of this item has been automatically translated. If you have any questions, please feel free to contact us. MEGA 2560 compatible USB CNC controller board with OUT LPT for drivers MANUFACTURER: F.Elettronica REFERENCE: FT1290M EAN CODE: It allows you to use, through the PC's USB port, the traditional three-axis control cards of a CNC that work on a parallel port.MANUAL Based on the ATmega2560 with GRBL firmware installed, this board has a USB/TTL converter, DB25 connector, USB port for power supply and connection to the PC, relay output for connecting an electrospindle. It allows you to use, through the PC's USB port, the traditional three-axis control cards of a CNC that work on a parallel port. Attention: The USB cable and the cable for connection to the RESET connector are not included in the package, therefore if necessary they must be purchased separately (see the related information for the product codes). Buy all accessories in our shop on EBAY | MECTRONICA STORE The system To understand the usefulness of the interface it must be said that in common CNCs on LPT port the command is given by the processing software (for example Mach 3) which, starting from the file in G-code language, sends directly to the parallel lines pulses to advance the respective axes by a certain number of steps/mm. Mach 3 executes the G-code and emits specific pulses for the motors, one per parallel pin, synchronized and temporally coherent. If you were to try to communicate via USB with a converter, first of all you would have to open a virtual LPT corresponding to the USB with the appropriate drivers, then the data would be serialized and then transferred along the USB to the USB/parallel converter, which would then have to extract them and rearrange them in parallel form. This procedure involves, due to latency, synchronization problems between pulses (because Mach 3 controls the motors and their driver lines line by line) and temporal coherence, therefore it is inadvisable to use a USB/parallel adapter. We have circumvented the problem creating something that is actually a subsystem that interprets the commands sent by the CNC control software: a card that connects on one side to the USB and on the other, via a DB-25 connector, to the parallel of the 3-axis controller card of the CNC and which interprets the commands received, extracts them from the serial strings arriving on the USB and reconstructs the commands on a parallel connection, reassigning them the right timings and temporal coherence with the pulses of all the command lines. The parallel reconstruction of the command pulses starting from the commands received on USB is carried out by an ATmega2560 microcontroller interfaced with a USB/TTL converter; we loaded the firmware into the microcontroller grbl. So our board receives the G-Code coordinates from USB and locally generates the pulses on its own parallel, which drives the printer's original controller. Due to the way the firmware we chose works, we cannot use Mach 3, but software that runs on USB but something like GRBL sender, which sends coordinates in the format that our card reads. The firmware The installed firmware is grbl, not compatible with Mach3, therefore we must orient ourselves towards suitable solutions for the CNC control software. Grbl is a firmware created to interpret the G-code language and convert it into commands on the three axes of a CNC machine; then the G-code sends the movement coordinates on the three axes (for example, to draw a square you need 4 coordinates and therefore 4 commands: from one point to a second, from the second to the third, from the third to the fourth and from this to the first) . The machine converts the coordinates into steps to be given to the motor (taking into account the microsteps) to carry out the movements required by the commands. Grbl was designed for the MEGA world and can therefore be installed on boards based on Atmel ATmega microcontrollers with the bootloader preloaded using the same MEGA IDE. In our case, since it is an open firmware, we have customized it by modifying some parts, especially those that define the structure of the CNC to which the controller board will be combined. The firmware can be downloaded from github. The conversion of G-code instructions into direct commands to the axis drive motors follows certain rules and occurs according to a certain logic; Furthermore, grbl supports some standard operating modes and managements, such as those of the limit switches, the emergency stop button, the adjustment speed of the electric tool, etc. Why Mectronics STORE? All products are shipped via the best national couriers such as SDA, GLS, Poste Italiane, BRT and DHL. 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As you can see, the way to contact us is clear and simple, to quickly solve all problems with our products. ELECTRONICS - HOME AUTOMATION - REMOTE CONTROL - AUTOMATION AND MECHANICS - SOFTWARE CREATIONS Prestalia e-commerce solutions. MANUAL Based on the ATmega2560 with GRBL firmware installed, this board has a USB/TTL converter, DB25 connector, USB port for power supply and connection to the PC, relay output for connecting an electrospindle. It allows you to use, through the PC's USB port, the traditional three-axis control cards of a CNC that work on a parallel port. Attention: The USB cable and the cable for connection to the RESET connector are not included in the package, therefore if necessary they must be purchased separately (see the related information for the product codes). Buy all accessories in our shop on EBAY | MECTRONICA STORE The system To understand the usefulness of the interface it must be said that in common CNCs on LPT port the command is given by the processing software (for example Mach 3) which, MPN FT1290M Marca F.Elettronica EAN Non applicabile

Price: 162.42 USD

Location: Bagno di Piano

End Time: 2024-11-28T16:23:59.000Z

Shipping Cost: 0 USD