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1-ABRA CNC MACHINE 

 

1.1-SAFETY CONSIDERATIONS 

The use of this machine may pose many safety risks that must be addressed: 

  

 

Always  wear  the  appropriate  eye  protection,  breathing  mask  and  ear  protection 
needed for each job. 

  

 

Always inspect the CNC machine for any visible problems before each operation. It 
is recommended to test each motor axis before beginning a mill. 

  

 

For the safest operation, store the machine in a well-lit, well ventilated work space. 
It is a good idea to have an open space surrounding the machine, so it does not 
become cluttered. 

  

 

The CNC machine will be loud and will produce a lot of shaved material. Be sure to 
keep the machine in a space that can accommodate the sound and dust. Always 
keep the machine clean and dry before and after each job. 
  

 

The CNC machine may vibrate and move during a job. If possible place rubber feet 
or clamp the unit down to prevent skidding.  

  

 

The  CNC  spindle  spins  at  a  very  high  speed  with  a  very  sharp  bit  attached  to  it. 
Never place your hand or 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 will draw a lot of 
current in use. Always be careful that the power supply is safely connected with the 
jack connected to the CNC controller board first prior to connecting to a power bar 
or wall outlet. The power supply may pose a fire threat if misused. Always consider 
electrical protection when using the CNC machine. Try to avoid plugging multiple 
tools into an outlet at the same time. Always unplug from the wall outlet side before 
disconnecting from the controller board.  

  

 

Do not manually move the motors when they are off. This can produce a reverse 
current and damage the CNC controller. Always unplug the motor connectors before 
manually moving them. 
  

 

Never leave the CNC machine unattended during a job. 
  

 

Understand  the  level  of  difficulty  involved  with  this  machine  and  understand  the 
machine's intended applications and limitations before beginning. 
 

 

Refer to this manual or other references before attempting a repair or adjustment. 

 

 

See additional document for In-depth Assembly Guide.  

Содержание CNC ENGRAVER 01

Страница 1: ...ABRA CNC ENGRAVER 01 ABRA CNC ENGRAVER 01...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 24: ......

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