AutoCAD 2014 - Lags opening certain file and Block Editor

As it happens this is the only drawing that has elevations from Solidworks. It looks like you make have found it. Great Thank you.

I do know that using wipeouts and backgrounds on dimensions can cause the regens to be slow but I have no alternative on this project as there is so much detail. the other file which is 30MB is just CAd work and no 3D imports which may explain a lot.

Give yourself a well earned pat on the back matey. Thank you from the UK

So where would you use the overkill command?

I seldom if ever have the need to run Overkill on my own drawings. I do however run it on any drawing I download from CADTutor or via a file sharing facility. Why? Because I find that many users are unaware of the command and a vast majority of those never had any formal CAD training so they tend to make mistakes.

BTW....this is in no way a reflection on you. Aside from the Solidworks content being brought over (not anyone's fault really) I think your drawings are very well done. I like the level of detail.

Well I know what you mean. I have to use Architects drawings all the time and they are very bad at the discipline. I myself am self taught bar a couple of years in a drawing office. Fortunately I am a little OCD (or CDO to put them in the right order) so I like things right.

Thanks for your help ReMark. It is much appreciated, as for the detail, well i have to make sure that I can provide 1:2 construction details anywhere so I build them up from the panels all the way to the GA's

You're entirely welcomed. I wish I could have done more. Cheers mate.