A speed square has many obvious uses for marking up your building materials. Here's a small hidden feature you may not know about: it can also draw perfect circles. Most speed squares have a notch at ...

You can draw on an iPad with an Apple Pencil on the Procreate app, which you can use to sketch, paint, and illustrate.

STEP 1: Using a pencil and ruler, draw a horizontal line. Set the compass to the width of the line. Place the compass at either end of the line and draw two arcs that cross in the middle. Image ...