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About average_jonny

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  1. average_jonny

    Toolpath for machining a fillet without a form tool?

    Flowline likes to do funky things in internal corners...
  2. average_jonny

    Toolpath for machining a fillet without a form tool?

    Big thanks Rich, this looks very tidy and to be seems to be the less convoluted way. Without the containment boundary the stepover towards to the bottom of the fillet becomes exponentially larger, with the boundary it has the reverse effect. Attached two captures of with and without to show this.
  3. average_jonny

    Toolpath for machining a fillet without a form tool?

    Thanks guys, but could you possibly upload this again as a.zip as my work computer doesn't have a .rar extractor.
  4. So I come from a Powermill background but my current place uses Mastecam which I've been self learning over the past five weeks. One thing I can't seem to get working and no one at my place has any new ideas, is machining a fillet without a form tool, or a tool smaller than the fillet itself. In Powermill there was a toolpath called 'Optimised constant Z' , which is equivalent to Mastercams waterline, however OCZ would maintain an equal stepover even as the geometry angle changes. The closest toolpath I've found is flowline however it breaks the toolpath at some corners as seen in the attached capture, I've also attached the file so you can see for yourselves. Any ideas on the best way to go about this? Test_piece2.mcam
  5. average_jonny

    Rotary 4-axis problem - not detecting collision geometry

    Thanks for doing this Bill, look forward to seeing what comes next with it. Also just to add on, when the cut pattern is switched to axial why does it start at a 90 degree angle from the toolpaths plane? Normally I could get around this by telling it to start at -90 or +90 but the values are limited from 0 - 360. In the mean time I've attached the file from the original post as well as the actual file in which I first encountered the issue (although I've deleted the rest of the toolpaths and just kept the rotary 4-axis one). You can see in this file and the attached capture that it does detect some geometry but as Bill said doesn't retract and gouges straight through collision check surfaces. Rotary_issue.mcam Rotary_issue_actual.mcam
  6. Just came across a strange issue, potentially a bug, when using the rotary 4-axis toolpath. I've recreated the issue using a simple cylinder and a block which isn't too dissimilar from the actual geometry. So to put it simply - when the cylinder is selected as the surface cut pattern and the block is selected as the collision control and the cutting method is set to rotary cut the toolpath generates as expected and it avoids the block as seen in the attached capture. Now if you set cutting method to axial cut with the cut pattern and collision control surfaces still the same the toolpath does not detect the collision geometry, as seen in the other attached capture. Any ideas why this is happening? Running Mastercam 2019 BTW

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