OpenPnP is a Java based open source software program that can be used with this machine in order to program and run PCB assembly jobs. This log will cover the configuration of machine drivers, head and feeders. In depth information about configuring OpenPnP can be found at https://github.com/openpnp/openpnp/wiki

Machine Drivers

A machine driver contains all the info pertaining the communication between a motion controller (GRBL in this case) and a computer running OpenPnP. SimplePnP uses two separate motion controllers, one for the table and another one for the head, so we need to set up the table driver and the head sub driver.

Table Driver Setup

Head Sub Driver

The machine.xml sub driver section should look like this:

Head

The head machine component has the information regarding the nozzle carriage and bottom looking camera parameters and capabilities. OpenPnP allows the user to set the preferred head parking location and the soft travel limits.

Nozzle

To set up a nozzle for the SimplePnP machine, the user needs to do the following:

• Set nozzle X offset
  

• Activate “Limit Rotation to 180º”

• Set pick and place dwell times to 350 ms

• Create default nozzle tip and mark it as compatible with the nozzle

Camera

To set up a nozzle for the SimplePnP machine, the user needs to do the following:

• Set top camera as down looking

• Configure units per pixel depending on Z distance from surface

• Calibrate test using built in routine