Power tool which works by oscillation

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Fein Multimaster without blade attached

An oscillating multi-tool or oscillating saw is a multitool and power tool that oscillates (rather than rotating or reciprocating), powered by battery or mains. The name "multi-tool" is a reference to the many functions that this tool can perform with the range of attachments available. "Master Tool" is also a trade name used in North America, short for the original tool by Fein called the Multi-Master. Attachments are available for sawing, sanding, rasping, grinding, scraping, cutting, and polishing.

History

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Elektrische Gipssäge, a cast saw by Ortopedia (Kiel, Germany), is a power tool used to remove orthopedic casts which has an oscillating blade instead of a circular saw with a rotating blade

This type of oscillating tool was originally developed by the German manufacturer Fein in [1] with a design intended to remove plaster casts easily without cutting the patient.

This saw was patented as a circular saw with an angular oscillating saw blade. It was used primarily in orthopaedics for cutting plaster casts. The crescent pattern of the oscillating rotation cut through the hard cast without damaging the patient&#;s skin. The plaster cast saw was equipped with a more powerful gearbox to upgrade it to a chassis saw. The plaster cast saw formed the basis of FEIN's range of oscillating power tools.[2]

Uses

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Use of an offset in a fitted blade allows the tool to cut flush with a surface. This is particularly useful when fitting flooring along a skirting board, cutting the skirting to allow the board to slide under for a neat finish. The small form of these tools and the ability to mount the blade or accessory in any orientation allows cutting in areas that are otherwise virtually unreachable. The ability to cut a complex or precise recess without the need to remove the work piece from where is it fixed greatly increases productivity. Small and precise cuts are possible even on end grain. A small sliver can be easily removed from timber cut too long for a perfect fit.[3]

The accessory is fitted to the tool by a mechanism which allows that accessory to be rapidly rotated back and forth (oscillated). This creates friction with the sanding attachments, or rapid cutting motions with the saw and grinding attachments. The narrow angle of oscillation allows for precise control over the tool as it does not kick like a rotating or reciprocating tool can. The angle of oscillation creates increasing friction further from the center of the tool as these areas travel a greater distance. The increased friction is particularly apparent with the triangular sanding and grinding attachments which allow the operator to reach into corners and confined spaces, a feature unique to this type of power tool. The saw blade attachments use the angle of oscillation in the same way, particularly the circular-shaped saw used in hospitals to cut the orthopedic plaster used in cases of bone fracture, once the immobilization time is over. [4]

The oscillating blade does not clear swarf in the same way as a rotating blade, so it is necessary to move the tool back and forth to allow accumulated sawdust to clear from the cutting area. Improvements in battery technology such as lithium-ion battery have allowed for tools which can be small in size and weight but still perform well enough to compete with mains-powered equivalents while freeing the user from the restrictions of cables.

Blades and accessories

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A non-symmetric scraper blade for an oscillating power tool Saw blade for an oscillating power tool

Various attachments and blades are on the market, giving these machines a wide variety of uses. The blades can be separated into 5 main categories: cutting; tile, grout and masonry; sanding; scraping; and polishing.

Cutting blades are standard saw blades with various tooth configurations for cutting different material. They are either straight blades with the teeth on the end, allowing the user to "plunge cut" directly into the material they are cutting, or circular blades. Bi-metal blades offer smaller hardened teeth that allow the user to cut soft metals and the popular Japan tooth blades have large teeth that cut wood quickly but cannot cut metal

Tile, grout, and masonry attachments are either carbide or diamond coated and allow the user to clear grout between tiles or do light masonry work.

Standard sanding attachments allow the user to sand flat surfaces and specialty attachments such as the profile sanding kit allow detailed profile sanding work to be done.

Polishing is possible with the help of polishing pad attachments that are becoming more popular.

The arbor attachment on all machines has varied widely since these machines started production, with many machines using a proprietary arbor configuration. Many after-market blade companies have created universal arbor attachments that are compatible with most, but not all, oscillating multi-tool machines.

The Starlock interface was launched by tool manufacturer Robert Bosch GmbH and Fein.[5] The interface is compatible with a number of other manufacturers.

Alternatives

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An oscillating saw can perform some of the same tasks as a jigsaw.[6] One can also perform some of the same operations as one otherwise would have done with a chisel and hammer,[6] possibly in combination with a drill.

See also

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• Fein Multimaster RS, a well known oscillating multitool whose patent expired in
• Cast saw, an oscillating power tool used to remove orthopedic casts
• Die grinder, a rotary multi-tool (sometimes associated with the manufacturer Dremel)

References

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If you are looking for more details, kindly visit oscillating knife cutting machine.

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Guide: All You Need to Know About Oscillating Knives

Content:

What is a CNC Digital Cutter Machine?

For graphic and precision cutting modern companies use CNC digital cutter machines, where CNC stands for Computer Numerical Control. This means that the movements of the CNC machine are set and limited by the computer according to specific designs entered through a computer-aided design program (most often CAD, but also CorelDRAW, Solidworks, Adobe Illustrator). This allows for highly accurate and complex parts to be produced in large batches, while allowing for flexible product changes. These digital cutters are favored for their ability to create complex and precise cutouts, engravings and 3D shapes quickly, flexibly and cost-effectively.

What is a CNC Oscillating Knife Cutting Machine?

Oscillating cutting machine is a CNC digital cutter machine equipped with an oscillating cutting tool. The oscillating knife tool cuts a wide variety of materials, but these materials must be flexible, soft or semi-soft. It is particularly effective for cutting softer and thicker materials such as sponge and foam materials, corrugated and sandwich board, rubber, felt, non-woven, fabrics. The oscillating motion allows the blade to cut smoothly through these materials without dragging or tearing.

What is Oscillating Cutting?

When oscillating cutting on the CNC digital cutter, the knife moves up and down at high speed. This oscillation allows the knife to cut through fairly thick material. The depth of cut varies and depends on the knife (its length and shape) installed in the oscillating tool. The oscillating or otherwise vibrating motion ensures clean and precise cuts, making it suitable for intricate shapes and designs. 

What is an Oscillating Knife? 

An oscillating knife is a knife designed to be installed in a corresponding tool / knife holder on a CNC cutting machine. Oscillating cutting is mainly used on digital flatbed cutting tables. You can read more about them here.

Oscillating knives are made of solid tungsten carbide alloy. They have different shapes and designs depending on the manufacturers. Oscillating knives, which have a round blade shank, are mainly designed for installation in pneumatic oscillating tools and most often have a hollow to additionally be secured with a bolt. Example: Aristo , Esko Kongsberg SR. But more common are oscillating knives with a flat shank. Example: Zund Z20, Z29, Z60

What Materials Can Be Cut with an Oscillating Knife?

There are 2 types of oscillating cutting tools: Electric oscillating cutting tool and pneumatic (air driven) oscillating tool.

The electrical oscillating cutting tool is ideal for cutting soft and medium dense materials up to 28 mm thick. Materials to be cut with EOT: sponge and foam materials, corrugated cardboard, leather, woven, non-woven materials, displays.

Compared to electric oscillating tools, air-driven oscillating tools are more powerful and therefore designed for cutting denser, stiffer and thicker materials up to 50 mm thick. Materials for cutting with POT: sandwich cardboard, foam, corrugated cardboard, rubber.

What is a Tangential Knife? 

Digital cutting machines equipped with a tangential cutting tool allow the blade to be controlled, namely guided to the desired cutting direction according to a preset design, with the ability to lower and raise the cutting tool with the blade vertically when it is necessary to change the position of the blade or the necessary rotation. The tangential cutting tool lifts the knife out of the media, rotates it, and lowers it back into the media. Since the cutting tool is steerable, there is no need to offset the blade as in the case of drag knives. 

The tangential cutting technique is excellent for cutting complex patterns, small details, and letters. The tangential knife excels in precision and is capable of producing very accurate and clean cuts, especially in designs with sharp angles and detailed work.

Most commonly, tangential knives cut vinyl film, reflective film, sandblast, labeling and stickers, paper and cardboard in the production of promotional materials, signage, decals and other products.

Tangential knives are also made of tungsten carbide and most often the depth of cut is less than 10mm. Examples of tangential knives: T36, T45, T60.

Difference between an Oscillating Tangential Knife and a Tangential Knife

At first glance, one might think that these are the same knives, but the oscillating tangential knife and the simple tangential knife have differences. From its name, the oscillating tangential knife provides in addition to the properties inherent to the tangential knife also a vibrating movement, and also combines the property of the tangential knife - lifting the knife from the cutting material, rotating and changing the trajectory of the cutting knife, lowering it back into the material and cutting along a defined path. Oscillating knives are better for thicker, softer materials, whereas tangential knives are ideal for materials that require sharp, precise cuts.

Buy Oscillating Knives for Digital Cutting Systems 

If you are looking for oscillating knives of high quality and durability, then the knives manufactured by Sollex are the right choice for you. In the category Knives for digital cutting systems you will find a wide range of knives suitable for plotters and digital cutting tables from manufacturers such as Zund, Summa, Gerber, Colex, ESKO, Atom, Aristo, Jwei and others. Blades are most often interchangeable and fit different cutting systems. You can find such information on the pages of knives for automatic digital cutting systems in the description section. If you need assistance in selecting the right cutting solution, please contact our support team and we will be happy to help you.

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Sollex is a Swedish supplier of industrial knives and machine blades! We have cutting products with cutting-edge technology and performance that improve manufacturing and converting processes and solve problems. With the right knives and blades you can get simplified maintenance, time savings and an improved end product.

You are welcome to contact us with your questions:

Company name: Sollex AB

Customer service and orders:  : +&#;15 75 00 Address: Box , 200 71, Malmö, Sweden

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