CNC_V10 "Long Tall Sally" 3 motors T8-2

cults3d

Here I go, again... This is a little bit improved V9 version, but it implied several remixes and changes, so I had to publish it as new project. It's my latest version of Ooznest OX CNC Machine (https://www.thingiverse.com/thing:1684109), well designed, very strong and well documented (I advice to go there and here and read all carefully). You can configurate it as per your need: motor type, blower, vacuum, laser and so on. UPDATES: 2022-10-02 Added an LCD2004, an SD reader, so you don't need anymore PC and USB cable. Added Laser support and a blower too, having read this is the best solution to avoid black baffles on wood; not too much effective, but... This upgrade uses an Arduino Uno to communicate with Arduino Mega. It took a few of time to realize a simple and versatile software; I gogled around but I found only few codes, working and not working, but no one satisfied my needs. So, a function there, a function here, I realized my own code, simple and effective. As you can see, after job ended it resets and asks again for SD; this way you don't need tu shut down and restart. There's anyway a little limit: on SD card must reside just one file and no directories; no one is perfect, sorry! For laser I designed a blower too, having read this is the best solution to avoid black baffles on wood; not too much effective, but... Al necessary items are pre-fixed with "LCD_". Arduino code and modified library GRBL are into CODESENDER.ZIP. Engraving video at https://dai.ly/kKOsLwtnSf1pRaySUpY Remixes: - X axis moved on up to avoid collisions, dust and so on - Z operative range now is 90mm - improved Y axis carriage - Arduino Mega + RAMPS are now used, due to lack on spare pins on Uno + CNC shield - added spindle motor variable speed - added CW-CCW capability (optional, see below) to perform automatic tool changing - a lightweight Z carriage allowing a 90mm Z height; who is interested to can find it here Several options are available: - Cyclone dust collector, see uploaded CYCLONE.ZIP - a little blower, see uploaded BLOWER.ZIP - a very simple modular ATC - an 8-10" tablet support, see here - support for Makita mill Chinese clone, see MAKITA_SUPPORT.ZIP - support for cross-hair laser pointer Included .STEP of all items, see STEP.ZIP. Instructions Y Axis (see picture above) - at exactly the center of 2060x454mm cut away an 25x20mm (HxV) portion of material - at exactly the center of 2060x437mm drill an 10mm hole Feet Glue circular shape 10mm thick rubber pads into feet bottom. INSTRUCTIONS LCD+SD When you've to access Uno or Mega to flash firmware, you must put the switch PC/SD in PC position; this way the RX/TX lines are interrupted. This is necessary because USB and RX/TX are not to be used at same time. Apply same above when using CNC from PC via USB. Laser: When using a Laser, make connections like in second schematic picture. PWM is from D6 pin in RAMPS; it was necessary because of 5V TTL needed by laser. In defaults.h/DEFAULTS_RAMPS_BOARD set #define DEFAULT_LASER_MODE 1 // true CNC: In defaults.h/DEFAULTS_RAMPS_BOARD set #define DEFAULT_LASER_MODE 0 // false Software I'd advise to use Gnea GRBL for compatibility with almost all CAM software around Read it carefully - decompress GRBL-MEGA_5X_1L.ZIP somewhere and copy the resulting grbl_Mega directory into your Arduino IDE libraries directory - run Arduino IDE and set board tyo Arduino Mega - load \libraries\grbl_Uno\examples\grblUpload - flash to board To manage my CNC I use the friendly UniversalGcodeSender (UGS) . I uploaded my own GRBL version, ready to be used; you can modify everything there The optional 5mW cross-hair laser pointer may be dangerous for your eyes. Take all precautions to avoid hazards BOM 2020: - n. 2 x 200mm 2040: - n. 1 x 437mm - n. 2 x 500mm - n. 1 x 710mm 2060: - n. 1 x 437mm - n. 1 x 454mm - n. 2 x 500mm 2080: - n. 2 x 750mm wheels - n. 22 Delrin wheels 24mm - n. 30 spacers M5x6mm - n. 10 eccentric spacers M5 - washers M5x1mm lead screws - n. 1 T8 lead screw 710mm - n. 1 T8 lead screw 465mm - n. 1 T8 lead screw 220mm - n. 3 T8 lead screw nuts - n. 1 608ZZ bearing - n. 1 688RS bearing - n. 2 625-2RS bearing - n. 2 608ZZ bearing - n. 2 8mm lock collar - n. 3 Openbuilds anti-backlash nuts other - n. 1 Arduino Mega + RAMPS 1.4 - n. 1 Dual H-Brifge 40A - n. 1 power supply 12/24VDC 30A - n. 3 Nema23 - n. 1 spindle motor OD 52mm, 200W or more, 12-24VDC - n. 1 Chuck ER11 8mm - n. 1 spindle collets set 13 pcs - n. 1 Neato fan (refurbished) Aliexpress, optional (see BCB1012UH.PDF included) - n. 1 5VDC DPDT relay module for reversing CW-CCW (optional) - n. 5 40mm fans bearing - n. 1 radial blower 50mm (optional) - n. 2 Transmission Chains 20 x 15mm or bigger - n. 1 wood workplane 706x430x20mm - n. 3 spacers M5x35mm - n. 6 spacers M5x23mm - n. 1 coupler 6.35mm->8mm - n. 2 flexible coupler 6.35mm->8mm - n. 3 Hall effect sensors for endstops (optional) - n. 3 8x3mm round Neodimium magnets, if used Hall sensors - screws flat head 3mm, 4mm, 5mm, nuts, as needed - lithium grease - silicone oil or sewing machine oil - Optional Laser pointer Credits Ooznest (https://www.thingiverse.com/thing:1684109), of course... NitroXpress (https://www.thingiverse.com/thing:973505/files) for its nema23 cooler cover mgx (https://www.thingiverse.com/thing:124551) for its Scad customizable cyclone separator