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CNC Measure and Machine - Reimagined

Needed to rework high tolerance CNC parts which required manual probing operation.
Reimaginded a "hack" solution of CNC machine. GCode program automatically probes for center then reams.

Summary of Video:

Reimagine-cnc measurement
CNC Machine & measurement
Reimagine-cnc measurement
Problem Statement
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Problem - Statement
Machined block with machined holes
Desire not only tolerance of holes but
X-Y locations
Reimagine-cnc measurement
Problem Statement - HAAS Machine
Has two modes
Graphical operator mode
_ can use to position the probe
_ can use to then reset the coordinates
Program Run mode (GCode)
Reimagine-cnc measurement
Flow chart "conventional" operation Takes 45 minutes with continuous operator intervention
Reimagine-cnc measurement
Had very high tolerance reamed holes (+0.0000 to -0.0002)
Multiple holes on the plate
Need to make sure that all the holes are in the proper X,Y position
Need to make sure the holes are the correct size
Even after inserting brass bushings
_ still needed to check/machine the reamed holes
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Required user to use graphical, manual screen for each hole
_ have to insert probe
_ manually move to the center of the hole
_ choose to find the center
_ set the center as the new X,Y center for the working coordinate system
_ run the reaming program
Reimagine-cnc measurement
Reimagine
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Reimagine - Design
Hacked the HAAS machine code
Embedded touch probe into GCode
One pusbutton load probe, finds center, switch tool and reams on the center found
Get report of the hole positions
If center is off, can pull bushing and rework the one hole
Reimagine-cnc measurement
Can view at:

private.richbudek.com
Reimagine-cnc measurement
Taking to much time to set up the plates
Requires a skilled operator who knows how to set coordinates
Because such a repetitive process
_ possibility to miss a step
_ so, the holes will not be reamed
_ worse can damage the plate
Embed the probing within the G-code program that does the machining
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Outcome
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Plates were machined in record time 45 minutes per plate versus 5 minutes
_ simple operator was able to run
_ could walk away and do other work while the holes are being reamed
Found 4 plates where the hole centers were off
_ fixed with pressed in bushings and new centers
All of the plates worked flawlessly
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Lessons Learned
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QC department wanted reports from measurement
Ended up using probing routines to mimic CMM
Reimagine-cnc measurement
Thank-You