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<p class="MsoNormal">Thank you again Jeremy,<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">You’re solution (see below as I understand it) works.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Yet, I have no clue why yours does and mine doesn’t.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Bart.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">----<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">KanR = DefineNumber[ 0.1, Name "Parameters/KanR" ];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">WanD = DefineNumber[ 0.2, Name "Parameters/WanD" ];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">KanMeshsize = DefineNumber[ 0.01, Name "Parameters/KanMeshsize" ];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">SetFactory("OpenCASCADE");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Rectangle(1) = {-2.5, -2.5, 0, 5, 5, 0};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Circle(5) = {0, 0, 0, KanR, 0, 2*Pi};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Curve Loop(2) = {5};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Plane Surface(2) = {2};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">BooleanDifference{ Surface{1}; Delete; }{ Surface{2}; Delete; }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Extrude {0, 0, WanD } {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"> Surface{1};
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Point(15) = {0.05, 0, 0};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Point(16) = {0.05, 0, WanD};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Line(20) = {5, 15};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Line(21) = {15, 16};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Line(22) = {16, 14};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Curve Loop(8) = {21, 22, -18, 20};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Plane Surface(8) = {8};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Extrude {{0, 0, 1}, {0, 0, 0}, Pi} {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"> Surface{8}; Layers{25};
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[1] = Distance;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[1].EdgesList = {5};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[1].NNodesByEdge = 50;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2] = Threshold;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2].DistMax = 2.5;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2].DistMin = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2].IField = 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2].LcMax = 0.25;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Field[2].LcMin = KanMeshsize ;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Background Field = 2;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Mesh.CharacteristicLengthExtendFromBoundary = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:NL-BE">Mesh.CharacteristicLengthFromPoints = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:NL-BE">Mesh.CharacteristicLengthFromCurvature = 0;<o:p></o:p></span></p>
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