It still aint perfect at anything, but it's decent at a lot

• Straightedge
• Square
• 90 deg protractor
• Compass for drawing at half cm interval
• ruler to ¼ centimeter precision (precision is relative to your printer)
• 45 deg template
• Hexagonal templates at diameters of 1, 2, and .5 cms
• Circle templates at 1 and 2 cm diameters
• 1 in sample spacing for defining scale
• ½ & ¼ cm tangent rounds on the corners for drawing fillets