Hi there!.
I need some help… I want to draw some lines in this component but when I zoom in on the object, it just disapears??
What component? You need to give us something to work with.
There are several different reasons for clipping. A simple search of the forum will turn those up for you. Upload the SKP file so we can take a look and give you a solution.
It’s possible you need to change the camera settings or you have the component too far from the origin or something else is going on. We can only guess without seeing the SKP file.
What you’re seeing is caused by the Camera Clipping Plane
Sharing the model file vs.a picture would help us help you.
See these articles:
Is all or part of the model disappearing? — SketchUp Sage Site
https://sites.google.com/site/sketchupsage/problems/other#TOC-Is-all-or-part-of-the-model-disappearing-
Clipped or Missing Faces — SketchUp Help
I’ve sold the problem!, thanks for your help 
You should explain your solution here for those who have the same question in the future…
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