Panel lines 3D printed scale models 

I am glad you found this useful, after making this video I came across another way of making panel lines so you might want to check out the part 2.

I came to the comments to add pipe as well.

Sorry, I try not to, but as it's part of my normal workflow I keep instinctually doing it. I know this makes things harder to learn as I have tried to learn Blender but the level of shortcuts used by the tutorial videos makes it hard to follow.

I understand, no problem. Doesnt mean I appreciate your videos :)@@kscalemodels1208