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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Antispam question: What do MOONwalk and MOONdance have in common? Answer: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON [quote][i]Originally posted by HallieHe[/i] [br]I am using FastCap2 to extract capacitance value of a certain geometry: a metal half sphere in a big dielectric sphere (e.g. air). I do get a correct 3D model from the FastModel viewer. But an error message pops up when I solve for the capacitance. I copied the error message as below. Could someone help me with this error? [red]=================Error Message===========================[/red] 3D Solver Engine invoked Solution scheme (-g): Collocation, GMRES tolerance (-t): 0.005 Out-of-core free memory to link memory condition (-f): 5 Potential interaction coefficient to mesh refinement ratio (-d): 1 Mesh curvature (-mc): 3 Number of input panels to solver engine: 320 Iteration number #0 *************************** *************************************** Refining the geometry.. Refinement completed Mesh refinement (-m): 1e+032 *************************************** Computing the links.. Number of panels after refinement: 320 Number of links to be computed: 638 Done computing links *************************************** Precond Type(s) (-p): Jacobi Total allocated memory: 16575 kilobytes Total time: 0.004000s (0 days, 0 hours, 0 mins, 0 s) Error: Generic error, program execution stopped! [blue]===============My code=======================[/blue] I edited based on the example "coated_sph.lst". The main .lst file is as below: * radius 1 shell is the conductor C halfsphere.txt 2.0 0.0 0.0 0.0 * radius 2 shell is the dielectric interface - air on the outside D sphere_big2.txt 1.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 sphere_big2.txt is straight from the example with no change; I changed the original "sphere.txt" to "halfsphere.txt" in order to get a half sphere geometry. "halfsphere.txt" is essentially a list of Q sphere commands, such as: Q sphere -0.000000 0.000000 0.000000 -0.031287 0.000000 0.000000 -0.029756 -0.009668 0.000000 -0.000000 -0.000000 0.000000 [/quote]   Check here to include your profile signature.