I have a customer does plasma cutting and I make dwg files for his nesting program. I often use an old dwg to redesign, modify, etc and send him a new dwg. Sometimes I can just import the dwg directly into a slddrw, converting to swx entities, do whatever changes and save-as to a dwg again. Hundreds of times this has worked fine, and the method works great as far as controlling layers, colors, etc. Today one of my dwgs has apparently caused a continuity problem on the nesting program, and sure enough, when I import it into a slddrw, the select chain fails. Zooming waaay in, I can find a couple of places where some line entities have a tiny gap and I can merge these points and select chain does OK. When I save as dwg and bring it back into slddrw, the problem is back. Nothing unusual about the file, maybe Solidworks detected that I was getting something done today, and activated its productivity kill module?
Is there a setting that deals with accuracy of the data points? Is there any way to do the equivalent of chain-select in DWG editor to verify if the entities are connected?
bill