Thanks PC Moor have used your link successfully and now a happy camper. It is still frustrating having to do it this way but I guess this is how they stay in business.

Have tried downloading SU Make 2017 but after registering etc it doesnt complete. Profile was out of date, am using Pro 2015. Will try Make again later.

I have SU Pro 2015 but have not used for a while due to retirement. Have I missed something dramatic? as I cant download models from 3D Warehouse anymore. I realise i cant do this anymore directly from SU but even when i try to save from the website then load into SU it tells me I cant download as i have an older version and need to update which i dont understand as some of the models I have tried have been modified in 2014 so should work with SU Pro 2015. Any help would be greatly appreciated.

Hi Dave R

I have attached one of the affected models but stripped out all the interior furniture etc as this project hasn't reached the pubic domain yet. I found the offending colour (material23) and for the life of me I don't know where this came from, I removed it from the in model colours on the original and the default colours reverted back to normal, I have left the default faces as they were in the attached copy. I tried dragging a colour from the in model colours onto the back face default colour in an unopened group and this changed them to that colour - so I think this is what I had done accidently before. Regards & Thanks for your comments.

Tertiary scene stripped interior.skp

I need some advice on why I occasionally have accidently changed the default colour and how to rectify this. I think what I have done is when I have the paint bucket still open from painting a surface I have clicked on an unopened group with this colour and have not noticed it as it only affected the back faces and too late to use "Go Back"to rectify. Another time this has happened was when I dragged the materials/colour box down to the bottom of the screen a + sign appeared breifly then I notice the back faces has been coloured with a different colour.Any help appreciated.

Thanks Guys I will give this a go

Could someone point me in the right direction please. I need to know how to create a SVG file in SketchUp Pro 8 so it can be used for laser etching. My drawing will be a 2D line drawing with some text but no dimensions. I will be creating the drawing from a PDF plan but will have to add more detail to this, what format is best to import the PDF into SketchUp for sharpness of lines to enable me to trace over accurately.

Massimo

I discovered what I was doing wrong, I had exported the mask as a 2D jpeg from SU. I rendered this in Shaderlight & the fit is perfect, the only problem is it has masked a couple of surfaces not selected - the mobile whiteboard surface & a jpeg image on the whiteboard on the wall??
Regards
John

Massimo
I did have the sizings different, have corrected but mask size is still too wide (height is OK) closer than the previous but still not right - as per screen shot. Regards
John

This is amazingly simple and I get the results I want - It is great to know there are so many experienced SU people out there willing to share their knowledge, very rare these days. Your help is greatly appreciated, John.