P2 based Pick and Place for P2
Rayman
Posts: 14,967
Finally made some progress on this project...
Can now pick up P2 translate and rotate to pads on PCB and finally place in perfect position.
Background: For assembling PCBs, I have a manual pick and place machine that is fine, except for big chips, like P2. It's very hard to get it just right. Maybe 25 % of the time it goes perfectly and no rework is needed. But, all too often, the P2 pins smudge the paste around and sometimes A LOT of rework is needed to clean up the P2 pins.
With this setup, can use modified CNC with a Juki pick and place head to place P2 perfectly every time.
For now, using Universal G-Code Sender to manually jog the P2 into place and then turning off vacuum pump to release.
As soon as find a 24 V supply and a switch, can use the Juki solenoid valve to turn off vacuum and release the P2.
This is looking to make my boards much cleaner looking and more problem free.
Here are photos of it during first test and pdf notes on how it was done...
Comments
Have to thank @mwroberts for the P2 code that talks to Universal G-Code sender from here:
https://forums.parallax.com/discussion/173389/p2-grbl-emulator-g-code-motion-controller-and-stepper-pulse-generator
Last year, used this setup to paint eggs. Might need to revert back to that soon (If can still buy eggs in April that is..)
https://forums.parallax.com/discussion/175775/cnc-egg-cookie-painting-bot
Plan to go forward with this is to use an actual CNC to machine an aluminum tray to hold P2 PCB in a fixed position and then hollow out a square hole on same tray for the P2 to sit in.
Thinking this will allow for a fixed G-Gode program to get the P2 and move into position.
Don't know if this setup can be rigged to automatically control the vacuum valve or not. Have to check into that. Maybe not necessary at first though because want to inspect P2 position above pads before lowering it into the paste...
The Juki hollow stepper includes a rotation sensor. Don't think going to need that for this, but might hook it up one day anyway...
Sorta working!
https://www.youtube.com/shorts/qKmXsRdGxLk
Next, want to see if any of these heads can pick and place 0402 parts...