QT2DD Making massive cuts when machining internal arcs.

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MAX THE MILLER
CNC Expert
CNC Expert
Posts: 158
Joined: Tue 23 Aug , 2011 18:25 pm
Hardware/Software: Denford Triac PC. VR Milling 5.51.0.616

QT2DD Making massive cuts when machining internal arcs.

Post by MAX THE MILLER » Tue 02 Sep , 2025 11:31 am

I produced the attached drawing using QT2DD (I zipped it because the forums won't accept .lcmfiles)

I then used the CAM Wizard to generate GCode in an .fnl file which is also attatched.

When I simulate running the code using QT2DD the internal turning tool makes a massive cut which would undoubtedly stall or damage a real machine.

The machine tooling and machine materials setting check out OK.
Attachments
internal arc.fnl
(2.05 KiB) Downloaded 5 times
internal arc.zip
(3.11 KiB) Downloaded 5 times

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