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Abra CNC ENGRAVER 01, Manual

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8 

 

2.1-ELECTRICAL ASSEMBLY 

 

Figure 1- Electrical Assembly 

2.1.1- CONTROLLER BOARD 

The controller board is where all the hardware is connected. The power and programmer 
cables are connected as well as the motors and drivers. Connection is done as shown 
below in 

Figure 3.

 

 

Figure 2-Board Diagram 

Z-AXIS 

X-AXIS 

Y-AXIS 

Summary of Contents for CNC ENGRAVER 01

Page 1: ...ABRA CNC ENGRAVER 01 ABRA CNC ENGRAVER 01...

Page 2: ...This page is left intentionally blank...

Page 3: ...ROLLER BOARD 8 2 1 3 MOTORS 9 2 2 MECHANICAL ASSEMBLY 9 3 GRBL CONTROLLER SOFTWARE 10 3 1 INSTALLATION 10 3 2 FIRMWARE LOADING 11 3 3 SETUP AND TESTING 12 3 3 1 CANDLE 13 4 SETUP AND CALIBRATION 18 4...

Page 4: ...M5x10mm Screws x60 M5 Washers X20 M5 Nylon Washers x4 Aluminum Heatsinks x3 M5 T Nuts x60 M2x6mm Screws x8 Springs x2 M6 Brass Flange x2 M6 Couplers x2 T Nut Screws Washer Wing Nut x4 Brass Couplers...

Page 5: ...ive to parallel port based motion control CNC milling The system runs on the Arduino IDE Atmega 328 platform Uno Duemillanove Nano in C code however G code and M code commands can also be sent to the...

Page 6: ...body part near this part while it is activated For assembly and calibration it may be wise to slow down the motor or unplug it entirely The CNC machine is plugged into a very strong power supply and...

Page 7: ...g thickness 30mm Varies on bit used Head travel dimensions o X 13cm o Y 10cm o Z 7 5cm 2 ASSEMBLY INSTRUCTIONS An additional manual provides a step by step detailed and photographed list of assembly i...

Page 8: ...2 1 1 CONTROLLER BOARD The controller board is where all the hardware is connected The power and programmer cables are connected as well as the motors and drivers Connection is done as shown below in...

Page 9: ...verted in the software and firmware later The stepper rate can also be adjusted in the software however it may be useful to tune the motors from the potentiometer on the driver Loosening results in mo...

Page 10: ...unning the CNC machine The ABRA Kit uses Candle Different users prefer different versions Usually the code is open sourced and is updated frequently The firmware is also available for download Become...

Page 11: ...Processor ATmega328 o Tools Port Whichever com port this board is assigned Click upload to flash firmware or Serial monitor for a pop up window to communicate with the board Set the baud rate to 11520...

Page 12: ...upply have been installed we can connect the unit and test the system If the Arduino drivers and software are up to date the CNC Machine should be recognized automatically as it is plugged in First we...

Page 13: ...Candle port connection Note If you cannot connect and have the same status message as shown in figure 4 under console section Close any software that is communicating with the board such as Arduino o...

Page 14: ...e Unlock Note Alarm lock will only occur if you use Hard limits and print in the console the warning message To reset you use this button or type X in the window and press the paper airplane to send t...

Page 15: ...button Left and right will move left and right respectively The white button will move the z axis up or down respectively Movements are done in mm and are set so accordingly to the firmware settings F...

Page 16: ...ordinate before every mill project you want to send Home feature can be used once the coordinates are zeroed to return back to that zeroed point You can verify if the location is zeroed by looking at...

Page 17: ...hree lines you can expand options for the spindle and set the speed to 10000 for a speed of 7000 RPM By clicking on the spiral icon you can activate the drill motor and it should start spinning You wi...

Page 18: ...for calibration If the milling job succeeds congratulations you are one of the few users who were lucky enough not to need calibration Enjoy your new CNC Machine Proceed to step MILLING observe the e...

Page 19: ...000 3 5 dir port invert mask 00000101 4 0 step enable invert bool 5 0 limit pins invert bool 6 0 probe pin invert bool 10 1 status report mask 00000011 11 0 010 junction deviation mm 12 0 002 arc tole...

Page 20: ...values in the machine s EEPROM enter the following commands o 100 792 079 use your values o 101 741 256 o 102 775 194 This step can always be repeated and reverted but generally doesn t need to be don...

Page 21: ...thickness Material Origin depends on if you want to cut the material from corner or center recommend corner as 0 0 0 Traverse height Z 1 27 End Mill T05 0 2mm v tip Machine Taig Click File Import SVG...

Page 22: ...material to the plate for milling For best results try to centre the material on the plate From GRBL Controller move X and Y motors to approximate centre of material Zero these axes See Figure 7 Lowe...

Page 23: ...Z Axis and spindle higher so that it hovers above the board without touching it Then start the mill and observe if any part of the job goes out of bounds Note Try using your mouse by right clicking an...

Page 24: ......

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