Parallel Port Breakout board with Buffer for CNC & Routers

Rajkumar Sharma
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medium
Tested

Parallel port I/O break out board designed for Hobby CNC, Routers and Motion controller , This Board is an easy solution to driver stepper Motor driver, AC Servo (with Step-DIR Driver) and DC servo (with Step-DIR Driver), The Board is compatible with various CNC software specially made for LPT port data out. The board has been tested with MACH3 CNC software. All outputs are buffered, all inputs are optical isolated and can be used as emergency switch, limit switch and home switch.

The board has 12 output pins that can control various devices such as stepping motor drivers, AC Servo Driver, DC Servo Driver, Plasma Torch, Pump for coolant, spindle, 5 Input pins are provided for limit or home switches, feedbacks, Emergency switch. All inputs has 470E for current controlled and TTL Voltage input required driving the inputs. This board can be powered with USB input or DC input supply 7V to 36V, keep jumper J2 open in case of USB supply input. Board has Screw Terminals for Inputs and out connections and also provided with 4X6Pin header connecters for outputs. J15 is connected directly to parallel port pins for testing purpose.

Note: For 24V input signal replace of R3, R4, R5, R6, and R7 with 2K2 Ohms.

Features

Supply 7V to 36V DC
25 D SUB Female Connecter for PC LPT Port Interface
On Board Power LED
On Board USB Connector for Supply from PC or other USB source
Jumper Selection for USB Supply Input or External Supply
All Outputs are buffered
All inputs are optically isolated
Two Options for Outputs, Screw Terminals and Header Connectors
4X6Pin Header for easy motor driver interface
On Board L317 Regulator for 5V DC
Heat sink for regulator
5V DC Output for External Circuits
3X3 Header Connector for Relay Driver for Spindle, Plasma, Laser, Pump ON/OFF

Connections

CN15 : LPT Port Test Pins
CN7 : Inputs , Limit Switch, Feedback, Home Switch, Emergency Switch
CN1 : DC Supply Input 7V to 36V
CN2 : DC 5V Output
CN10, CN11, CN12, CN13 : Header Connector for Stepper driver Interface
CN8, CN9, CN14 : 3X3Pin Header Connector to driver Relay for Outputs
CN5 : Outputs
J3 : E Stop Optional Jumper for Test Purpose
J4, J5 : I/O Direction Control ( Jumper Close to VCC for Normal Operation)
CN6 : USB Connecter for VCC Supply input ( Keep Jumper J1 Open for USB Supply Input)
D1: Power LED

Schematic

Parts List

Connections

Configuration

Photos

PCB

Downloads

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Comments

mukesh pandey

i want to make a 5 axis breakout board with spindle speed control. but in your design spindle speed control is not available.
please help me on this.
2 years ago

Reply
- admin
  
  Yes, this is just the breakout board with buffer ICs, you will need additional circuit to control the speed of your motors.
  2 years ago
  
  Reply
  - M
    
    Hello, i have searched for spindle speed control circuit without any luck. Its possible that you help out how we could add that on circuit?
    1 year ago
    
    Reply
Asad

Hi
Thank you for your web site

1- For running stepper motor we need a power supply. Where is input of power supply on board?

2- in the black and white photos there is many black circular that these join with 1 or 2 or 3 or more tin black wire to extensive black area
Is this black wire is error in your design?

I add a link that help you to understand my mind of question 2!
http://s8.picofile.com/file/8333387626/0.png

Thank you again
2 years ago

Reply
Asad

Hi
Do you have gerber file of this PCB?
2 years ago

Reply
- admin
  
  Gerber files uploaded above. Thanks
  2 years ago
  
  Reply
  - Asad
    
    Thanks, So thanks
    
    1- How can I convert gerber to .nc files for CNC millig?
    
    2- Can we run 5-axis CNC by this boards? Do you have controller board for 5-axis CNC?
    
    3- There is a 6-pin set of yellow pins far from the other yellow pins on the board, What is its use?
    
    4- Is this 6 pins yellow for the fifth axis?
    
    I add a link that help you to understand my mind
    http://s9.picofile.com/file/8335384376/2.jpg
    
    Thanks again and regards
    Asad
    2 years ago
    
    Reply
    - Asad
      
      And:
      6- Can we run this board only by usb port?
      
      Thanks again and regards
      Asad
      2 years ago
      
      Reply
      - admin
        
        You can run it through USB using a USB to Parallel adapter.
        2 years ago
    - twovolt
      
      Hi Asad,
      please check bellow link, i have used this board for my own large size CNC router, it has 5 axis stepper drives but 2 axis are parallel so actually i have used 4 axis.
      
      http://www.twovolt.com/2018/10/13/my-5-axis-cnc-milling-_-cnc-router-controller_-mach3_mach4_uccnc-machine-control-software/
      2 years ago
      
      Reply
    - twovolt
      
      Please check the video ( Aqcor Inc used this board for 4 axis CNC machine)
      
      https://www.youtube.com/watch?v=ANnz1M8GhNA
      https://www.youtube.com/watch?v=jHWk5j1n0q8
      2 years ago
      
      Reply
      - Asad
        
        Hi Twovolt
        Thank you very much for all your reply
        I checked all your links and send an email for you
        Please check it
        Thank you so much again
        2 years ago
Asad

Hi
Do you have .pcb or .pcbdoc or .ddb or .LYT files of this PCB?
Thanks
2 years ago

Reply
- admin
  
  I am sorry, only gerber files and PDF document are available for this project.
  2 years ago
  
  Reply
Asad

Hi

Do you have a photo of behind of board?
2 years ago

Reply
- Asad
  
  Hi
  
  Please share a photo of behind of board
  
  How many smd capacitors are used behind of board?
  2 years ago
  
  Reply
- admin
  
  We will share a photo of the other side of the board in a few days. Thanks!
  2 years ago
  
  Reply
  - Asad
    
    Okay
    I will wait!
    Your welcome
    2 years ago
    
    Reply
    - admin
      
      I have uploaded a photo of the back of the board in this page.
      2 years ago
      
      Reply
Asad

Hi
we want to run this board by mach3, for configuration of port and pin , What is the phrase in the Port Address that we should write in configuration of port and pin windows and other settings?

Please attention to photo in follow link:
http://s8.picofile.com/file/8343527450/unnamed.png

For connect stepper motor to board, we have 4 Phase connector on stepper motor but on board there is 6 connector that include 3 earth, and that is impossible to connect stepper motor to board we have to have 4 phase connector on board !!!

Please help me to solve problem!
2 years ago

Reply
- Asad
  
  Please help me to solve problem!
  2 years ago
  
  Reply
- admin
  
  The parallel port address is depending on your current PC configuration. One way to check it if to go to Device Manager -> Ports (COM & LPT) -> Right click -> Properties -> Resources -> under Resource settings you should see the resource type Input/Output Range. The first address of the Input/Output Range is the address of LPT Port (common value is 0378)
  
  Regarding stepped motor connections. I will try to draw a graphic to represent the correct connections.
  2 years ago
  
  Reply
  - Asad
    
    Thank you so much for your reply and answer to my question
    Thank you so much for your try to draw the graphic, I need your graph very much, and please sent it early
    2 years ago
    
    Reply
- twovolt
  
  Hi Asad,
  
  Download Mach 3 manual from Mach website to setup the outputs and inputs, read manual it has answers of all your questions.
  
  It would be great if can email your questions to me at raj@twovolt.com ,
  
  Thanks,
  Raj
  2 years ago
  
  Reply
  - Asad
    
    Dear Raj
    I Install mach3 on my system and I assemble this board and I want to run it by mach3 but I need to more data
    I’m going headway step by step 🙂 🙂
    And may be I have very question and I sent email to you
    2 years ago
    
    Reply
twovolt

Hi Asadollah,

One Small yellow mark is 12V SMPS to power the breakout board . blue circle Silver color large size devices is 7.2Amps stepper driver,

This unit has 5 stepper motor driver , 4 provides 4.2Amps and 5th is 7.2 Amps, this 4th one for Z axis, usually Z axis required high current motor to hold vertical spindle load for large size machines.
out of 5 axis , one is spare ( No Use) two are parallel input Y axis has two parallel motors mounted, one is for X axis and 5th for Z-axis.

Regards,
Raj
2 years ago

Reply
Asad

Hi
I’m Asad that I needed to help for making and install ” PARALLEL PORT BREAKOUT BOARD WITH BUFFER FOR CNC & ROUTERS ” from https://www.electronics-lab.com/project/parallel-port-breakout-board-with-buffer-for-cnc-routers/

I assembled PARALLEL PORT BREAKOUT BOARD and I install mach3 and I don’t change the setting and config of mach3
I install software and I connect an LED to any step/dir pin to GND with 470E resistor to check Pin Enable and Pin Step/Dir on board that we connect them to stepper motor driver, but when I presser direction key on keyboard to turn on X , Y , Z axis pin on board do not turn on LED to check X , Y , Z axis pin

http://s8.picofile.com/file/8346452918/11111111111111111111.jpg

Do I need change the config of mach3?

Thank and regard
Asad
2 years ago

Reply
Asad

How can I use of this guide?

https://www.electronics-lab.com/wp-content/uploads/2016/06/Parallel-Port-Breakout-CNC-LPT-I-O.png

Best Regards
2 years ago

Reply
Asad

Hi friend
How are you?
How can I use of this guide?

https://www.electronics-lab.com/wp-content/uploads/2016/06/Parallel-Port-Breakout-CNC-LPT-I-O.png

Can you give me screen shot of all inputs and outputs and other data in configuration windows of mach3?

Best Regards
2 years ago

Reply
- Asad
  
  My friends
  
  No one can answer my request?
  How can I config mach3 on this board?
  
  Best regards
  2 years ago
  
  Reply
asadollahahmadian

Hi dear friend

I assembled this board and I want to config mach3 on my computer to run this boards but I can not

Can any people help me to config mach3 to run this board

Thanks and regards
2 years ago

Reply
- Mike
  
  Hi Asad, configuring Mach3 is a time/resources consuming task and needs a separate article/s to explain it. It can’t be one on comment of this page. This is beyond the scope of this project. I would suggest to take a look around and report your findings so we may able to help on specific questions. The best place to do so it to open a forum topic: https://electronics-lab.com/community/
  2 years ago
  
  Reply
Andrew

The Parallel Port Breakout board has very good parameters. However when it comes to CNC Motion controller, I recommend this https://en.cs-lab.eu/shop-cat/cnc-motion-control-system-csmio-products-sets/ . Although it looks like an ordinary small box, connected with a PC and appropriate control software it will supervise the correctness of any CNC appliance operations.
3 months ago

Reply
aLBERTO Arreda

I Mr Mike waht is the speed of this board do you test? also do you have a same board but for lpt2?
great job.
thanks
Alberto Arreda
3 months ago

Reply