<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 14pt; color: #000000"><div>Hi </div><div>To complete volume 25 (see my file rotor.geo). I'm not using the right surface. I should not take the surface of the total disk, but the surface of the disk minus the surface of each blade. <br>I tried with a loop on Curve Loop but I didn't succeed.<br>Can you help me?<br>Thank you. </div><div><br></div><div><span name="x"></span>Cordialement<br><div><br></div><br><div><br></div>Pierre Lecanu<br>normandajc@laposte.net<br>06 63 53 70 33<span name="x"></span><br></div><div><br></div></div></body></html>