Using Google Sketchup for CAD Modeling in FEMM Transformer Simulations?

Click For Summary
SUMMARY

This discussion focuses on using Google SketchUp 8 for CAD modeling in FEMM simulations of ETD core transformers. The user encountered difficulties with non-axisymmetric designs and sought guidance on whether to use AutoCAD or SolidWorks for creating .dxf files. A participant confirmed that Google SketchUp 8 is effective for this purpose, emphasizing the importance of avoiding sharp angles under 10° to optimize meshing. The process involves exporting the model to DXF format through the SketchUp export tools.

PREREQUISITES
  • FEMM software for electromagnetic simulations
  • Google SketchUp 8 for CAD modeling
  • Understanding of DXF file format for CAD exports
  • Basic knowledge of transformer core design principles
NEXT STEPS
  • Research how to optimize meshing in FEMM simulations
  • Learn about exporting models from Google SketchUp to DXF format
  • Explore alternative CAD software like AutoCAD and SolidWorks for transformer modeling
  • Investigate best practices for designing non-axisymmetric transformer cores
USEFUL FOR

Electrical engineers, CAD designers, and simulation specialists interested in modeling transformer cores using FEMM and Google SketchUp.

nagsper
Messages
3
Reaction score
0
hi there,

i'm trying to simulate a ETD core http://www.ferroxcube.com/prod/assets/etd29.pdf" transformer using FEMM free software but I'm not getting it...i've done some simulations with pot cores and had no problem with that, using the axissymmetric mode. bue this type of core is not axyssymmetric... I've been looking for examples but couldn't find any. should i try to design the ferrite cores in AutoCAD or SolidWorks and export the .dxf file? would it work? has anybody tried it or something lookalike? if somebody could link some examples here would be great...thx
 
Last edited by a moderator:
Engineering news on Phys.org
Hi nagsper
I' m new in this list , but for using CAD for FEMM Google sketchup 8 is the best (free and easy) you just have to follow instruction to have two files mores to produce the DXF outputs
see ont ggogle sketchup site to find out the DXF options
but avoid sharp angles (under 10° that increase too much the mesching pass !)
for output on Skethup see tools --> export to DXF or STL --> select the model !
select the units --> export to DXF option : lines
and your model is build ...
have fun !