Hi Todd, I'm the not an expert and I have no idea about the cutting speeds or depth of cut but here's one idea for you. Generated by AlibreCAM (Unsupported MecSoft VisualCAM) you can program a hole profile to have tabs that hold the middle piece.
I created a 5"x5" piece 1.75" thick. Created a 3.75" hole through it. Then profiled the inside of the hole with conventional milling. I've attached a screen shot and the generated G-Code. Hope that helps. John Dammeyer > -----Original Message----- > From: Todd Zuercher [mailto:to...@pgrahamdunn.com] > Sent: February-28-23 12:54 PM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] Milling Strategies? > > I need to mill about a 3.75" hole through a piece of aluminum about 1.75" > thick. What is the best strategy to > accomplish this on a cnc mill. Is it best to us a pocketing strategy and > mill out the entire hole from the center > out, or would it be better to use some kind of cutting strategy and mill some > size slug out of the middle? I > can see the first option being simpler, but the 2nd option saves a > potentially useful piece of material, but > with the added complication of how to hold and prevent the chunk of scrap > from wreaking havoc when cut > free. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
HoleProfile_2 1_2 Axis Profiling.ngc
Description: Binary data
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