Origin of Electric Planers
Let us have a look at the various manual planers that lead to the development of the electric power planers that we know today.
Hand planers can be finicky and it is not always easy to set them up perfectly – especially when working on wider surfaces. Blades can easily be sharpened on an oilstone but getting the bevel angle right, takes some experience.
Manual Hand Planers
Although electric planers are very effective and have replaced most of the requirements for the hand types, there is always a place for a medium size hand planer in any workshop
Most hand planers are categorized as either bench planes or block planes, the various types of planes are as follows:
Electric Power Planers
Hand Power Planer – These are great for adjustment of door edges and trimming of flat areas such as floors, decks and tabletops. They are sometimes referred to as edge or door planers.
Like a hand plane, the power planer rides on a shoe. The planer has blades mounted on a cutter head, or drum, that spins at up to 20,000 rpm, removing a layer of wood equal to the difference in elevation between the front and rear shoes. The front handgrip doubles as a depth-adjustment gauge. The gauge, with its built-in scale settings, turns back and forth to move the front planer shoe up or down, setting the depth of the cut.
Cordless Hand Power Planer – There are now even 14 Volt and 18 Volt cordless versions available, which makes them extremely handy for off site applications
How does it Work?
Two blades spinning on a drum form the basis of a power planer. Using the depth adjustment knob, controls the bite of the blades by raising or lowering the adjustable front plate (or shoe).
Some power planers have two full sized blades that can be sharpened using a whetstone.