I honestly cannot explain why .png exported textures give problems as I never bothered to find out once I realised .bmp and .jpg worked everytime.

If you cannot establish the units used in Milkshape then a few tests can be done to determine what works best, I would assume cm's will work as the app is European after all.

Normally when exporting a model you have a settings drop box where it can be selected, however that does not mean SU will always import it.

@ross macintosh said:

Was the model originally created by you in SketchUp or is it imported?

They keys of the keyboard were taken from J-m@n's "Standard Qwerty Keyboard" model. I am not sure if that was modeled in Sketchup. The rest of it is created in Sketchup 5.0.305.

@gaieus said:

Wow that's weird... 😲
Do the skb (autosave) files present this problem, too? Maybe try to leave SU open for a while than exit without saving the model and open the autosaved skb file to see if those faces are still in there. If so, don't save it but maybe share the skb file with us somehow and we can have a look into it.

I shall try doing that.

I had actually successfully copied and saved the keyboard and keys by creating a new Sketchup file in which I pasted the keyboard in. It took two steps though or else it will blow holes in the board again. I first copied the "board" and pasted it in then the keys.

I shall upload both the old file (skp and skb) along with the new one so you can compare them.

EDIT: The files are uploaded here:

@Rob, making a group before scaling up only to explode it once you have is a waste of time. You can select the geometry and scale it up if you want. Scale down afterward. Here's another method that I think is easier. Start by making the profile and path for the Follow Me operation at the regular size. Make a component of the lot. Copy the component (Move/Copy) and scale the copy up by a factor of 10 or 100 or something. Open the large copy for editing, run Follow Me and do whatever else you need to do. Then close the large component to exit edit mode and delete it. Return to the original component and the work is done.