Concept art help!!

[ChR0n0_SeRgE]

Hi all,
can you all help me?

I'm having trouble with my concept art. You see, when drawing the side and front view for my model, I can never get straight lines!
I can draw the lines with a ruler, but they are never perpendicular with the edge of the paper. This leads to alot of editing in Photoshop, causing the picture to look messy and it is quite tedious and guesswork and annoyance when modelling.
How do you all do your concepts?
Please help!
Thanks in advance.

[ShaderZ]

Hey,

Use a T-Square. Its like a ruler in the shape of a T so you just prop it up againts the side of your desk or drawing board and make perfectly straight lines. I got mine for 6 bucks at an online art store so there not that expensive. :thumbsup: