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Author Topic: Creating a new type of MOP?  (Read 28889 times)
karst.drenth
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« Reply #120 on: April 18, 2017, 09:54:11 am »

Hi Geoff,
Some week or two ago I started to try to do an AutoLeveling Engrave MOP.

My first tries were to see whether I could manipulate the toolparh in such a way that the GCODE generation would take it into account. I notices that just changing the ZOffset is working pretty OK. But... any other, more elmentary translations on the toolpath PolyLines generate a lot of weird artifacts.. Specially the extra 'Bulge' attribute is still a big mystery to me...

Here is a sample how I managed to skew/rotate the plane 10 degrees:

Code:
      CADFile cadfile = CamBamUI.MainUI.CADFileTree.CADFile;

      foreach (CAMPart part in cadfile.Parts)
      {
        foreach (MachineOp mop in part.MachineOps)
        {
          if (mop.Toolpaths2 != null)
          {
            foreach (ToolpathItem item in mop.Toolpaths2.Toolpaths)
            {
              item.Toolpath.Transform.RotY(Math.PI / 180f * 10f);
              item.Toolpath.ApplyTransformation();
              //for (int i = 0; i != item.Toolpath.Points.Count; i++)
              //  item.Toolpath.Points[i] = new PolylineItem(item.Toolpath.Points[i].Point.X,
              //                                             item.Toolpath.Points[i].Point.Y,
              //                                             item.Toolpath.Points[i].Point.Z + item.Toolpath.Points[i].Point.X * 0.1,
              //                                             item.Toolpath.Points[i].Bulge);

              //item.Toolpath.Update();
            }
            foreach (Polyline rapid in mop.Toolpaths2.Rapids)
            {
              rapid.Transform = Matrix4x4F.Identity;
              rapid.Transform.Translate(0,0,20);
              rapid.ApplyTransformation();
              rapid.Transform = Matrix4x4F.Identity;
            }
          }
        }
      }

It does do the majority of the toolpaths *AND* GCODE is generated accordingly  Cool but... still there are sme weird things happening with fairly random lines just suddenly sticking out-of-plane ( either slanted or perpendicular )  Shocked Cry

Also note, that modifying the 'rapids' is only cosmetic, IRL the GCODE Generator only takes the 'Clearance-Height' into account to generate the output Undecided Undecided

So I feel somehow, that it's a nessesity to override the whole ToolPath generation up front, and not trying to modify the already generated toolpath afterwards...

The commented lines in my code do also kinda work, but with the same effects as the rotation transformation...

Grtzz,

Karst
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dh42
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« Reply #121 on: April 18, 2017, 18:06:01 pm »

Hello

Quote
Specially the extra 'Bulge' attribute is still a big mystery to me...

It is not the same than the bulge in a polyline ? (curvature)

++
David
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