ClipArt ETC
Do not hold the pen over the drawing while filing. Keep the blades parallel to the direction of the line

Pen Positioning

Do not hold the pen over the drawing while filing. Keep the blades parallel to the direction of the…

"Observe: That when drawn above the level of the eye, the bottom faces can be seen. (Boxes H, C and I.) That when drawn below the level of the eye, the top faces can be seen. (Boxes F, B and G.) That when drawn at the left of the eye, the right faces can be seen (Boxes H, D and F)> That when drawn at the right of the eye, the left faces can be seen. (Boxes I, E and G.)" -Foster, 1921

Positioning

"Observe: That when drawn above the level of the eye, the bottom faces can be seen. (Boxes H, C and…