Gundam Marker (water-based)

i tried graphite pencil but it's still too thick for my panel lines... so what i do nowadays is just use paint+water+detergent. i also use chalk pastel+water+detergent for the larger panel line. i'm currently making a hasegawa 1/72 f-16 and try the gundam marker on it...

;-P

thanks for the reply!

I use that pen and find it ok for making panel lines for larger scales. However for 1/72 scale it's a little thick so I use e very sharp graphite pencil or a fine tip technical pen.