VAB question

[Conbadicus]

Can't seem to attach certain parts... I had it like 10 minutes ago but then i changed something and suddenly there is no attach point.

http://postimg.org/image/k28mhbgsr/ Clearly there is an attachment point there

http://postimg.org/image/4e7vtwi4r/ Now it is gone

[Callmedave]

You need to change the root part.

Click the root symbol in the top right corner of the build screen, its a zig zag with a square on each end.

you click on the source part (the probe core or first part you put down) then click the new root part (the girder section) this means you can now attach the girder to the other part you are trying to.

 

That should work.