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What is a Wood Planer Used for? 6 Tips to Choose the Best Thickness Planer | CUTECH

What is a thickness planer and how to choose the best one? A planer is a must-have tool for woodworkers. In this guide we'll share the best benchtop planers worth considering for 2023.

Looking to upgrade your woodworking equipment? Adding a thickness planer is one of the smartest decisions you can make.

Whether you are a professional woodworker or a weekend warrior, a thickness planer is one of the most valuable tools to have at your disposal.

If you are exploring what a planer is used for and unsure if the purchase of one is right for you, the following guide will point you in the right direction.

What is a Thickness Planer?

We have come a long way from the earliest approaches to woodworking. Furniture made by the ancient Egyptians gives us a glimpse into how wood was smoothed from rough cut wood. Flat stones were used to scrub the surface of the wood with the addition of sand as an abrasive to flatten it. We can only guess how many hours and days this must have taken for one piece of furniture. Fast forward almost 30 centuries and a variety of planers available today can do the same job in minutes.

The most basic planer is the manual hand planer. This cost effective tool is available in an assortment of sizes. The smallest hand planers are used to shave off door edges that are sticking or swollen. The larger hand planers have adjustments for the amount of material to be removed. These are used to smooth out longer boards that may be rough cut or have defects.

Physical effort is required in using a hand planer to shave off thin layers of material. The introduction of the electric hand planer made woodworking faster and easier. Physical dexterity becomes less important as this small power tool takes over the tedious hard labor of smoothing out a board. This simple machine has an adjustable front shoe to determine the depth of cut. The blades are attached to a rotating cutter head that does the hard work of removing material. Even pressure is necessary to prevent snipe on the ends of the boards.

Next, we will take a closer look at the benchtop planer, a machine expressly designed to not only smooth the surface of the wood but to also trim boards to a uniform thickness. Whether you are making musical instruments or gluing stacks of boards together for a cutting board, a smooth board with consistent thickness is the first step to just about any project. The structural features of a benchtop planer mainly consists of a table, feed rollers, cutterhead and knives / inserts. The board is laid on the table and fed into the machine by the rollers. The cutterhead is mounted on a frame that can be lowered to trim off the board surface. For a consistent thickness, one side of the board must be flattened first. This flattened side will face the table as the opposing side is smoothed and thicknessed by the knives on the cutterhead.

The evolution of the knives is worth a mention as performance has increased over the years. Initially the cutterhead was outfitted with 2 or 3 straight blades made of SK5, a low to mid range carbon steel material. The nondurable SK5 led to the use of high speed steel (HSS). In addition to the straight blades, a different kind of cutters known as inserts are used by staggering them on the cutterhead. This design leads to reduced noise as well as being more cost effective by simply replacing damaged inserts instead of an entire straight blade. To further improve on the durability of inserts, the next upgrade we see is the introduction of tungsten carbide inserts. This material gives the consumer a longer lasting sharp edge on the cutters.

The launch of benchtop planers meant that DIYers finally had access to what large furniture makers were using to craft their work without the expense and space requirements. The array of benchtop planers available today is meant for every budget, from the small and simple machines to large machines with speciality features.

What to Consider When Choosing Benchtop Planers

The selection of benchtop planers on the market is wide and may seem daunting if you are purchasing your first planer. A review of the available options may help clarify the decision making process.

If selecting a benchtop wood planer, it is imperative that you understand how to unlock the full potential of this thickness planer type. The best wood planers should be matched to your budget, but it is equally crucial that it has the attributes for your intended job. The most important elements are detailed below:

● Cutterhead Type
An important component is the cutterhead. There are 3 options: straight, helical and spiral designs. The traditional setup is the straight blade cutterhead. The 2-3 knives run the length of the cutterhead and the knives take long thin slices of wood off the board. This low cost option operates at a higher noise level and the straight blades are more likely to cause tear-out. The helical cutterhead utilizes inserts that cut at one point thus creating a high resistance to the motor. It does produce a nice finish and operates at a much lower noise level than machines with straight knives. The downside of the helical cutterhead is the price. The helical cutterhead machine is usually priced much higher than any other benchtop planer. The balance between the straight blade and the helical design is the spiral cutterhead. The conception of the spiral cutterhead is borne out of a desire for a fine finish like the helical design but at a much more budget friendly price. The spiral cutterhead uses inserts that cut in short segments. It runs quietly and the lower motor burden means that the motor is less likely to burn out. Aside from the design of the cutterhead, machines come in different sizes.

● Capacity
The smaller machines can plane boards as wide as 12 1/2” (12”) and 6" thick while the larger machines can take boards as wide as 13" and 6" thick.

● Blade / Knife Material
The knives and inserts that are available for the cutterheads vary in material and price points. The straight knives often use SK5 or high speed steel blades. Since a single nick would require the entire blade to be replaced, it is a more costly option in a way. The helical and spiral models use small cutters that can easily be changed out as needed therefore the cost of replacement is limited to the single, damaged insert. The options for inserts are high speed steel or tungsten carbide.
The helical cutters are arranged in rows that spiral around the cutterhead while the spiral cutters are staggered in straight rows. Both these designs require the inserts to conform to strict standards as deviations in insert sizes will cause lines in the finish.

● Two-Speed
A limited number of benchtop planers will have the handy 2- speed feed rate. For consumers working with hardwoods or figured wood, slowing down the feed rate will enhance the finish and reduce the occurrence of tearout.

● Snipe ReduceMechanism
Benchtop planers will cut more deeply on the ends of the wood, known as snipe. In the absence of a snipe reducing mechanism, the snipe may be as deep as 0.25mm. The addition of a manual snipe lock element to stabilize the upper frame can reduce snipe. The other auto minimizer design on some models will minimize snipe automatically. This method further (Both methods) reduces snipe to a mere 0.13-0.15 mm, unnoticeable to the eye.

● Handy Features
Other components to consider such as repeat cut depth stops, depth of cut indicator and return rollers will add to the price tag of the machine but may bring efficiency to the job that is needed.

How to Use a Planer

Learning to use a benchtop planer correctly will save time and money from costly mistakes. Make sure that the boards are free from foreign materials such as staples and nails which can cause damage to your machine.

Once one side of the board is flattened, place the flat side down on the planer and lower the upper frame so that it touches the board. Every quarter turn of the handle lowers the upper frame about 1/16”.

Push the board forward and the depth of cut indicator will show how much material will be removed. Push further till the infeed roller is able to feed the board toward the cutterhead. Once the desired amount is cut, the board is fed by the outfeed roller to exit the machine. The scale on the side assists with how thick the wood will be after planing.

Best Benchtop Planers Worth Considering for 2023

Explore the top-rated planers for 2023. One will be a perfect match for your level of expertise and budget. We have selected to review five highly ranked benchtop planers for professionals and DIYers alike.

DW735
The ever popular DW735 is a classic example of the 3 straight blade machine with a dual speed feed rate. It comes standard with a fan assisted chip removal to keep the machine running free from chip debris. The upper frame lowers with 4-lead screws, giving extra stability for snipe control. A reputable brand with a quality machine that has been around for years.

PL1326
The PL1326 is considered top of the line for the spiral cutterhead models. Its 15 AMP motor generates 10,000 RPM with a 26 feet per minute feed rate. The spiral cutterhead holds 26 staggered, 2-sided inserts for a superior finish and quiet operation. The 4- lead screw design lends itself to minimal snipe and large extension tables support longer pieces of work. For the weekend warrior, this favorite design is high in quality and dependability.

Cutech 40800H
The 40800H is Cutech's newest addition to its 13" benchtop planer family. It boasts every feature a planer can have to make planing a quick and easy job. The 2-speed feed rate allows users to expand their woodworking to include the more difficult woods like oak and teak. The patented coupling design (Snipe Minimizer) with 4-lead screws automatically minimizes snipe to less than 13mm.

CMEW320
The CMEW320 is a solid 2 blade machine, perfect for home projects. The dust port makes chip removal a breeze. The 12-1/2” compact design makes this model more affordable.

Cutech 40200H
The 40200H is a classic design with a side crank that many users find more comfortable to use. The much reviewed snipe lock can be engaged to minimize snipe to less than 0.15mm. The extra large extension tables can be folded up for compact storage. The 8-position repeat cut depth stop has preset the most used board thicknesses to make planing simple and fast.

Quality Affordable Woodworking Planer - Cutech

Cutech 40800H
The 40800H is Cutech's newest addition to its 13" benchtop planer family. It boasts every feature a planer can have to make planing a quick and easy job. The 2-speed feed rate allows users to expand their woodworking to include the more difficult woods like oak and teak. The patented coupling design with 4-lead screws automatically minimizes snipe without having to engage and disengage an additional snipe lock. The return rollers on top assists board return quickly for the next planing. Thicknessing a board is a snap with the 8-position repeat cut depth stop. From 1/4" to 1 3/4", the preset depth stops ensure one doesn't accidently take too much off.

Cutech 40600H
The 2023 new design with a side crank that many users find more comfortable to use. The use the 4 Lead Screws for elevation with the patented Coupling Units design (Snipe Minimizer) effectively reducing snipe to less than 0.13mm. These new designs make the 40600H cost effective and have additional features such as the Board Return Rollers but are priced budget friendly.

Cutech 40700H
The 40700H is Cutech's smallest benchtop planer offering. This machine is terrific for smaller work pieces and the perfect size to take on the job. The spiral cutterhead holds 24 2-sided inserts to thickness boards as wide as 12 1/2". When larger isn't always necessary, this compact machine gets the job done and is reasonably priced for those on a budget.

 

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