I’ve been a bit dumb and used the rotation tool in a way I don’t think it should have been used. I have now created multiple lines over eachother and tiny gaps are appearing in my model. I’ve attached a screenshot for you to see visually what I’ve done. I can go and correct each part of this model manually but it will take me a long time. Is there a way you can get sketchup to automatically merge duplicate lines and connect things correctly automatically? I hope this post is clear enough for you guys to understand what I’ve done wrong!