Converting CAD files but missing arcs?

[JohnP]

Ok I am very new to this program so please be patient. When converting .DXF files i seem to missing almost all arcs if they were cut from circles? Does anyone know why this is happening and if so the fix? Thanks in advance ~

 

John

[BernieT]

Hi John, welcome to the forum.

 

DXF files frequently come into Mastercam as thousands of little short lines, no arcs or splines. This depends on what program the files came from or the settings used when translating.

 

If possible, use any translation other than DXF.

 

Can you tell us what program was used to make the drawing?

 

BerTau

[Fred from Université de Sherbrooke]

John,

If you're on V9, try the DWGIN patch... It could be the problem. If you're on V8, try older V8 patchs. Hope it could help

[P_Scott]

JohnP,

 

The problem may be with your source file. The Autodesk converter of DXF data does support arcs and now for V9, solids. Bertau is correct that even though DXF supports this type of data, it doesn't always come in cleanly. If you look under the File-Converters menu, you may be able to see another method for converting the file from the native CAD source. SolidWorks and SolidEdge files can be converted using the Parasolid converter. STEP and Pro-E are the only ones in V9 which require a license to convert their files. Fortunately, the Pro-E converter is half price until the end of the year. HTH

[dlhughes]

Just use the SAT Translator. This will bring in lines, arcs, splines and surfaces. If you don't want the surfaces, just move them to another level and turn them off or delete them.

 

Danny

[Ryeker]

I have had the same problem as described by JohnP and the best work arounds that I have found is either I Guess ( .IGES ) or step. I have tried the .DWGin but that gave me the same problem... As mentioned before try to stay clear of .DXF files if possible...!

[rollformerbob]

dxf convert will not read polylines with arcs or filets from autocad.explode everything before you create dxf and it will work fine.

[ProductDevelopmentGuy]

RollformerBob,

Welcome to the forum. The DXF reader is supposed to read in polylines defined as arcs or fillets. Could you send us ([email protected]) a DXF file that fails?

 

All,

I think the problem with the original posting here is that CAD products can output DXF in so many different ways. I'd like to make sure that we see any problem files.

 

Thanks

PDG (if you send files to QC, you can cc: me at [email protected])