Abstract: Collapsible and transportable systems for supporting miter saw assemblies. In one illustrative embodiment, a table assembly has two opposite main nodes at either end that support an upper bench top therebetween. Two legs extend from each main node to support the table. Two parallel support members extends through the main nodes underneath the bench top. A saw support table may be removably securable to the parallel support members extending out past the bench and allows a miter saw secured thereto to be adjusted such that the miter saw cutting table is co-planar with the bench top. A sliding locking member may be attached to the bench top to define a fixed distance for the length of material being cut. A second saw support table may be disposed on folding adjustable legs attached to the legs extending from a main node to support a table saw coplanar with the bench top.

Abstract: A bench top board scoring device is provided, having a frame having a first end and an opposite second end, a work area defined between the first and second ends, each end having at least one leg configured for contacting a substrate. A track is connected to the frame and extends between the first end and the second end, a carriage is slidably mounted to the track for travel between the first end and the second end, and an arm has an upper surface, a pivot end pivotally connected to the carriage, and an opposite knife mount end. A knife blade is mounted to the knife mount end. Additionally, the present device is constructed and arranged so that as the carriage is moved from the first end to the second end, wallboard samples placed in the work area and contacted by the knife blade receive a constant scoring force.

Abstract: An apparatus for mounting a coordinate positioning apparatus accessory, such as a tool setter, to the workpiece mounting surface of a coordinate positioning apparatus, the workpiece mounting surface having a slot formed in it. The apparatus includes an insert for inserting into the slot of the workpiece mounting surface, and a mount attachable to a coordinate positioning apparatus accessory. The insert includes structure to fix the insert within the slot; the insert is substantially contained within the slot when inserted therein. The mount includes at least one protruding member for engaging the insert when contained within the slot, thereby fixing the mount, and therefore any coordinate positioning apparatus accessory attached to the mount, to the workpiece mounting surface of the coordinate positioning apparatus.

Abstract: Cutting device for cutting a reinforcing ply (N) formed of a set of portions of thread, of given length, coated in a rubber compound, laid parallel to one another and making a given theoretical angle (a) with the longitudinal direction of the ply, characterized in that it includes a first element able, without proceeding to cut the said ply (N), to estimate the actual angle of the threads with the longitudinal direction (XX?) of the device and a second element able to cut the ply (N) at the actual angle (a+da) estimated by the first element.

Abstract: A miter saw assembly including a circular saw detachably coupled to a miter base is provided. The circular saw includes a circular blade, a motor, a power supply, and an attachment mechanism. The motor is operable to rotate the circular blade. The power supply is operable to provide power to the motor. The attachment mechanism detachably couples with a coupling arm of the miter base. The miter base includes a base and a support arm. The support arm includes the coupling arm, a vertical pivot, and a horizontal pivot. The vertical pivot is operable to pivot the coupling arm in a vertical plane. The horizontal pivot is rotatably coupled with the base. The horizontal pivot is operable to rotate the coupling arm in a horizontal plane.

Abstract: SAE-CD compositions are provided, along with methods of making and using the same. The SAE-CD compositions comprise a sulfoalkyl ether cyclodextrin having an absorption of less than 0.5 A.U. due to a drug-degrading agent, as determined by UV/vis spectrophotometry at a wavelength of 245 nm to 270 nm for an aqueous solution containing 300 mg of the SAE-CD composition per mL of solution in a cell having a 1 cm path length.

Abstract: A cutting tool apparatus, methods, and kit for removing damaged surfaces, more specifically, a portable cutting tool for removing cracked inner wing spars from hard to access surfaces. The portable cutting tool assembly includes at least one cutting tool, at least one alignment cutting mechanism, at least one cutting mechanism, angle plate assembly, and at least one fastening means, where fastening means secures the angle plate assembly to an aircraft wing, and where at least one cutting tool cuts a desired shape from an aircraft wing.

Abstract: A height adjustment mechanism of a table saw is provided with a support including a concave seat, two first sleeves spaced from both ends of the seat respectively, a guiding hole, and two parallel brackets spaced from the guiding hole; a drive rod rotatably extended through the brackets; a first bevel gear mounted to an open end of the drive rod; first and second guide uprights fastened in the first sleeves respectively; a threaded guide rod inserted through the guiding hole; a second bevel gear at a bottom end of the guide rod to mesh with the first bevel gear; a motor including a threaded guide hole secured to the guide rod, two second sleeves with the first and second guide uprights sliding through respectively; and two support elements each including a concave base member, a sliding rail on the base member, and a fastening member.

Abstract: A dual functional electric saw, comprising a saw base, a saw body and a connection mechanism whereby the saw base and the saw body are jointed together, wherein said connection mechanism comprises a connection beam being a fastener of said saw base, a load-bearing column connected with said connection beam, sliding kits installed on the load-bearing column for leading the horizontal motion of said saw body, and an angle regulation fitting being capable of adjusting the cutting angle between work piece and saw disc, with the sliding kits being an axis, one end of the angle regulation fitting is connected to the sliding kits while the other end is connected to the saw body; said saw base comprises a dismountable cover kit and a stand set having a chamber being capable of accommodating the saw body.

Abstract: The present invention includes a saw table, which can be converted into a parallelogram position. Converting the saw table into a parallelogram position allows for the angle of the blade relative to the fence and work-piece to change with ease. This invention also comprises an adjustable blade guard, which facilitates various cuts on or through work-pieces with minimal efforts.

Abstract: A cutting apparatus includes a cutting device and a base section. The cutting device includes a motor, a housing, a circular saw blade, and a base plate. The circular saw blade is driven by the motor to cut a workpiece. The housing rotatably supports the circular saw blade and accommodates the motor. The base plate is connected with the housing and is formed with an opening into which the circular saw blade is inserted. The base plate includes a main base plate connected with the housing and a sub base plate detachably mounted on the main base plate. The base section supports the workpiece. The cutting device is detachably mounted on the base section and is pivotably supported by the base section to be moved toward and away from the base section to cut the workpiece.

Abstract: A saw machine riving knife adjustment mechanism includes a locating frame, which has a slot, a riving knife, which has a longitudinal slot with at least one notch formed along one side of the longitudinal slot, and which is detachably mounted on the locating frame, a biasing member, which is mounted on the locating frame, and a locking member, which is inserted through the longitudinal slot of the riving knife and the slot of the locating frame. The locking member is biased by the biasing member to a locking position where the locking member is engaged with the at least one notch to lock the riving knife in position.

Abstract: The task is to achieve high cutting capability by using a simple configuration capable of maintaining a compact size and low cost. In a bench circular saw, a unit from a motor to a saw blade is provided as a separate member in a main body, and is held in the main body so as to be movable in a longitudinal direction at a lower limit position of the main body. A great cutting width can thus be ensured without the need to slide the entire main body in the longitudinal direction, namely by using a simple configuration in which only the unit is swung.

Abstract: The present invention includes a cutting device including a table configured to accommodate a workpiece, and a cutting unit positioned on an upper side of the table and being operable to vertically move relative to the table. The cutting unit includes a cutting blade, and a grip portion disposed on a lateral side of the cutting blade and capable of being grasped by an operator in order to vertically move the cutting unit. The grip portion has a palm contact part that can be touched by a palm of the operator when the operator grasps the grip portion. The palm contact part is inclined relative to a reference line that may be perpendicular to a surface of the cutting blade.

Abstract: A cutting-off saw with a safety protection device, including a base; a support arm arranged on the base; a cutting blade coupled to the support arm by a driving head; a fan-shaped fixed guard and a movable guard configured to enclose the cutting blade and can be combined into a single disc; an extension arm coupled to a top portion of the support arm; the movable guard coupled to one end of a guard connecting rod; the other end of the guard connecting rod formed into an arc-shaped elbow and coupled to a stop button and the extension arm. An arc-shaped bayonet having a radian matching with that of the arc-shaped elbow of the guard connecting rod is arranged on a lower portion of the stop button. It ensures that the movable guard will never be turned upwards during the operation of loading or unloading a workpiece.

Abstract: A machine tool, in particular a sawing machine, is described, having a work surface (14) for placing a workpiece (16) to be machined and a tool support unit (20) for supporting a tool (18), the tool support unit being supported movably relative to the work surface (14). The machine tool includes a tool operation monitoring device (60) for monitoring a tool range (68) at least during tool operation, the device having an imaging unit (62).

Abstract: The invention relates to a powered saw (2) of the chop saw or mitre saw form. A circular blade is mounted to be rotated and is pivotally movable between raised and lowered position via movement of a support arm (26) with respect to the base (4). The support arm (26) is mounted on a slide (12) which is received within a bearing assembly (10). Means (52, 54) are provided to prevent debris and other material from entering the bearing assembly (10) thereby ensuring accurate and smooth movement between the slide (12) and the bearing assembly (10).

Abstract: A saw includes a base assembly, a circular table rotatably mounted on the base assembly, a bevel mount pivotally mounted on the rear of the circular table, and a saw assembly slideably and pivotally mounted on the bevel mount. The saw assembly includes a motor, a cutting blade driven by the motor, a fixed guard mounted on the saw assembly surrounding at least part of the top half of the periphery of the cutting blade, and a dust tube mounted on the fixed guard. A dust chute is mounted on the bevel mount for directing the flow of dust and debris generated by the cutting action of the blade into the fixed guard when the saw assembly is located in its closest position to the bevel mount.

Abstract: A saw has a base assembly, a saw assembly pivotally mounted on the base assembly, a motor mounted within the saw assembly, and a drive spindle rotatably driven by the motor via a drive mechanism. The drive mechanism has a rotatable output shaft, a first drive wheel mounted on the output shaft, a rotatable intermediate shaft, a first driven wheel mounted on the intermediate shaft, a first drive belt wrapped around the first drive wheel and first driven wheel for transfer rotary motion of the output shaft to the intermediate shaft, a second drive wheel mounted on the intermediate shaft, a second driven wheel mounted on the drive spindle, and a second drive belt wrapped around the second drive wheel and second driven wheel for transferring rotary motion of the intermediate shaft to the drive spindle.

Abstract: A cutting tool may include a base having an upper surface for placing a workpiece thereon, and a tool unit vertically movably supported on the base. The tool unit may include a rotary circular cutter for cutting the workpiece and a cover configured to cover a part of the cutter. A chip guard may be disposed between the base and the cover and configured to receive powder dust produced at a cut portion of the cutter and blown in a rearward direction from the cut portion. The chip guard may extend along an entire vertical length of a space formed between the cover and the upper surface of the base.

Abstract: A miter saw includes a base, a table rotatably mounted on the base, a blade and motor assembly pivotally coupled to a frame support that is attached to the table, and a power cord coupled to the blade and motor assembly. The frame support, the base, and/or the blade and motor assembly also comprises a handle portion that includes a grip with an opening disposed at an outer end thereof, with the grip also having a pair of arcuate surfaces disposed at opposing sides thereof for retaining the power cord when wrapped around both surfaces.

Abstract: In some examples, an apparatus includes a base including an arm selectively movable with respect to the base. The arm is selectively rotatable about a first arm axis. A base plate is engaged with the arm. A tool is configured to be detachably coupled to the base plate. The tool is movable with the base plate when coupled to the base plate. The apparatus includes a first mode with the tool coupled to the base plate and the arm being selectively rotatable about the first arm axis, a second mode with the tool coupled to the base plate and the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base; and a third mode with the tool detached from the base plate.

Abstract: A dental prosthesis mold shaping apparatus includes a panel that has an upper side and a cutting assembly that is attached to the panel and extends upwardly from the upper side. The cutting assembly is capable of cutting into a dental prosthesis mold. The cutting assembly has restricted lateral movement and unrestricted vertical movement. A saddle includes an mount and a plate. The mount is releasably coupled to the upper side and the plate releasably receives the dental prosthesis mold. The saddle supports the dental prosthesis mold while the dental prosthesis mold is being cut.

Abstract: Embodiments are disclosed for a table saw including a table top having a generally rectangular top surface with front, rear and opposing side surfaces and having a slot through which a saw blade can extend, a tubular sub-frame for supporting the table saw, the sub-frame having an outer periphery generally coextensive with the outer periphery of the table top, front and rear vertical metal panels having upper and lower transverse mounting portions interconnecting the sub-frame and the table top and left and right vertical side panels made of a composite material mounted on the sub-frame and extending generally between the front and rear metal panels.

Abstract: Various example embodiments are disclosed. According to one example embodiment, a router table may include a table top, a mounting can, a sleeve, and an adjustment mechanism. The table top may have an aperture and a plurality of support members; the support members may be configured to support the table top. The mounting can may be attachable to the table top in a vicinity of the aperture. The sleeve may be engaged to the mounting can, and may be configured to receive a router and to position a router bit of the router along an axis extending through the aperture. The adjustment mechanism may be configured to move the sleeve within the mounting can and relative to the table top to thereby move the router along the axis and position the router bit at one of a plurality of positions relative to the table top.

Abstract: A circular saw includes a machine base, a sliding unit including a slide shaft slidably inserted through the machine base and a stationary mount fixedly mounted at one end of the slide shaft and defining a datum plane, and a cutting unit including a supporting arm pivotally connected to the stationary mount and a saw blade pivotally connected to the supporting arm. The saw blade is movable by the supporting arm up and down relative to the machine base between a lower limit position and an upper limit position so that the saw blade may intersect with the datum plane or be kept in a tangential relationship relative to the datum plane when it reaches the lower limit position. Thus, the circular saw has a compact size, low vibration level and high precision characteristics.

Abstract: A miter saw for cutting a workpiece is disclosed. The miter saw has a base section, a holder section, a saw blade section, a saw blade support section, and a guide bar. The base section has an upper surface for supporting a workpiece to be cut. The holder section stands from the base portion. The saw blade section has a circular saw blade for cutting the workpiece. The saw blade support section pivotably supports the saw blade section. The guide bar slidably supports the saw blade support section. The guide bar is slidably supported by the holder section. The guide bar extends substantially parallel to the upper surface of the base section. The saw blade support portion is slidable along the guide bar.

Abstract: A table saw includes a table capable of supporting a workpiece, a cutting unit and a positioning fence. The positioning fence has a positioning surface for supporting the workpiece. The positioning surface is divided into an upper positioning surface and a lower positioning surface that are positioned above the table. First slide fences allocated to the lower positioning surface and second slide fences allocated to the upper positioning surface are slidably supported in a table surface direction relatively independent from each other. The positioning surfaces of the first and second slide fences constitute an entire region of the positioning surface. In this way, the entire region of the positioning surface is made to be slidable in accordance with various operation modes.

Abstract: A circular saw with a moving mechanism includes a base, a moving unit and a cutting unit. The base has a worktable which has a front side and an opposite rear side, and defines a first plane which extends substantially horizontally from the rear side toward the front side. The moving unit is disposed above the worktable and includes a supporting frame disposed on the worktable. A first sliding shaft and a second sliding shaft are located parallel to each other and disposed at an interval relative to each other on the supporting frame. A moving member is also disposed on the first and second sliding shafts. A second plane is defined as a plane extending through an axis of the first sliding shaft and an axis of the second sliding shaft. Moreover, an included angle is formed between the first plane and the second plane and ranges from greater than zero degrees to smaller than 90 degrees.

Abstract: A supplemental frame and adjustable edge stop assembly are mounted to a front lower edge of a panel saw. A first quick release mount on the supplemental frame cooperates with a second quick release mount on the edge stop assembly to enable quick interchange of assemblies. One form of edge stop assembly includes a movable panel for movement as a unit of multiple edge stops into and out of operative position. A mounting plate for a cutting tool has workpiece rise limiters for pressing the workpiece against the panel saw face. Adjustable hold-downs engage a top edge of the workpiece to hold it down against support rollers. The edge stops, rise limiters and hold-downs form a pocket supporting the workpiece along three mutually perpendicular axes. A stand-off panel removably positioned on a front face of the panel saw supports thin workpieces closer to the cutting tool.

Abstract: An enhancement for use with automatically cycled saw systems that provides an operator access to two-hand anti-tie down buttons and other machine control functions while manually crowding the material to be cut against the saw's fence. The enhancement includes anti-tie down buttons to prevent a cutting cycle unless both buttons are depressed within preset time limit of each other.

Abstract: In some examples, an apparatus includes a base including an arm selectively movable with respect to the base. The arm is selectively rotatable about a first arm axis. A base plate is engaged with the arm. A tool is configured to be detachably coupled to the base plate. The tool is movable with the base plate when coupled to the base plate. The apparatus includes a first mode with the tool coupled to the base plate and the arm being selectively rotatable about the first arm axis, a second mode with the tool coupled to the base plate and the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base; and a third mode with the tool detached from the base plate.

Abstract: Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also include a reaction system configured to cause one or more predetermined actions to take place upon detection of contact between a person and the cutting tool by the contact detection system.

Abstract: A miter saw includes a base, a turntable, a support assembly, and a cutting arm. The turntable is rotatably connected to the base, and the support assembly fixedly extends from the turntable. The cutting arm is pivotally connected to the support assembly. The miter saw further includes an arbor assembly, a gear assembly, a first belt member, and a second belt member. The arbor assembly is rotatably supported by the cutting arm. The gear assembly is supported by the cutting arm and positioned outside of a nominal blade space of the miter saw. The first belt member is operatively connected to the arbor assembly and the gear assembly. The second belt member is operatively connected to the gear assembly and to a motor shaft.

Abstract: To restrain shifting of a circular blade, and reduce a cutting-in angle of the circular blade with respect to the tape roll main body, both ends of a rotatable blade shaft 38 is supported by a pair of shaft bearings 39a and 39b of shaft supporting members 37 of a tool post 20. The circular blade 21 is mounted to the blade shaft 38, between the shaft bearings 39a and 39b. This prevents the blade shaft 38 from being shifted or bent, restrains shifting of the circular blade 21, and reduce the cutting-in angle of the circular blade 21 with respect to the tape roll main body.

Abstract: A circular blade with stand for cutting and portioning animal products. The circular blade rotates about a rotational axis on a vertical cutting plane and the blade is driven by a drive motor. The device includes a horizontal working plane on which the product to be cut is supported and guided in a transverse manner in relation to the vertical cutting plane. The drive motor driving the circular blade uses an angular gear and is held in a fixed position on the stand above the circular blade so that a free working area is provided on both sides of the circular blade for the uninhibited handling of the product to be cut.

Abstract: A firewood processor includes a main framework having a front end, rear end and opposite sides. A log infeed trough is supported on the main framework for advancing a log lengthwise along a longitudinal axis from the front end to the rear end of the main framework to a cutting station extending upwardly from the main framework for selectively cutting a log advanced on the log infeed trough into individual log rounds. An operator control station is positioned on the main framework for selectively controlling the advancing and the cutting of the log. The cutting station includes a rotating blade that is positioned above the log infeed trough and is mounted for upward and downward movement controlled by an operator at the control station in a vertical direction substantially perpendicular to the longitudinal axis of the trough to enable cutting of the log.

Abstract: A detent system that includes a plurality of detent recesses formed in a first component, a detent pin that selectively engages at least one of the detent recesses, a linkage connected to the detent pin, and a detent button that is associated with a second component. There is preferably a slot formed in at least one of the detent button and the detent pin, where each slot slidably receives an end portion of the linkage. The detent system is preferably configured and arranged such that applying a force to the detent button to move the detent button in a first direction causes the linkage to move in a second direction, which is different than the first direction, thereby resulting in disengagement between an engaging portion of the detent pin and a relevant one, or more, of the detent recesses. Such disengagement allows for relative movement between the two components.

Abstract: A combination table-miter saw including a base, an arm rotatably coupled to the base and moveable relative to the base between a first position and a second position, and a platform coupled to the arm and moveable relative to the arm between a first position and a second position. The combination table-miter saw also includes a safety device configured to allow the combination table-miter saw to function as a table saw when the arm is in the first position and to allow the combination table-miter saw to function as a miter saw when the platform is in the first position.

Abstract: A combination power tool with a machine base, an independently operable portable circular saw, and a connection device for fastening the portable circular saw to the machine base to form a miter saw. The portable circular saw has a power supply unit including a first power socket that is provided at the front side of the portable circular saw and selectively electrically connectable to the motor of the portable circular saw, a second power socket provided at the rear side of the portable circular saw and selectively electrically connectable to the motor of the portable circular saw, and a power cable for connecting an external power source to one of the first power socket and the second power socket.

Abstract: According to an aspect of the invention, a bench cutter like a miter saw including: a drive portion driving a cutting blade; a base portion supporting a workpiece; a cutting portion arranged on the base portion, pivotally supporting the cutting blade above the base portion, and configured to make the cutting blade come close to and separate from the base portion; and a supporting portion connected to the base portion and movably supporting the cutting portion, wherein the cutting portion including: a transmission portion for transmitting power of the drive portion to the cutting blade; and a gear case covering the transmission mechanism and having a lower face portion opposed to an upper face of the base portion, wherein the transmission portion including: a spindle concentrically supporting the cutting blade; and a cutting blade fixing portion having a flange for fixing the cutting blade to the spindle.

Abstract: An alignment device for a portable motorized miter saw may allow a user to easily reproduce cuts of the same length, even when the miter saw is taken off and replaced back on a portable miter saw stand. The alignment device includes a three piece connector that allows for easy set-up of wings on either side of the saw, which are used to support the material being cut. Because the wings attach directly to the saw itself, the wings stay in exactly the same relationship to the saw blade. Thus, when a stop is attached to the wing, material can be cut to the same size lengths, even though the saw may be taken down one day and set up another day.

Abstract: Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone. The reaction system may include a brake member coupled to a housing.

Abstract: A woodworking machine having one or more dangerous portions is disclosed. The machine also includes a safety system configured to detect accidental contact between a person and at least one of the dangerous portions by electrically coupling a signal to the person's body, and detecting if the signal becomes coupled to the dangerous portion.

Abstract: A motorized saw in one embodiment includes a work support surface, a cutting blade supported above the work support surface and defining a cutting plane extending through a center portion of the cutting blade, a light source configured to generate a beam of light, a first reflector aligned with a first path in which a first portion of the beam of light travels and defining a first tracking line path along a first side of the cutting plane, the first reflector configured to move along and remain aligned with the first path, and a second reflector aligned with a second path in which a second portion of the beam of light travels and defining a second tracking line path along a second side of the cutting plane, the second reflector configured to move along and remain aligned with the second path.

Abstract: A sizing center for and a method of sizing different styles of window coverings includes at least two sizing mechanisms disposed on a sizing center in which each sizing mechanism is adapted to size a different style of window covering. Each window covering includes a color marking. At least two measuring scales are disposed on the sizing center, each measuring scale being associated with a sizing mechanism and having a different color, and each color associated with a sizing center being associated with a color marking of a window covering.

Abstract: One aspect of the invention can include a cutting machine having a table, a cutting machine body supported by the table via a sliding mechanism to allow movement in a vertical direction and a horizontal direction, the cutting machine body including a fixed cover positioned around an upper side of a rotary blade mounted to a rotatably driven spindle, the rear edge portion of the fixed cover is recessed upward to enable a large cutting depth. The sliding mechanism includes an intermediate stopper mechanism that can be operated to switch between a state where the cutting machine body can slide within an entire slidable range and a state were the cutting machine body can slide only within a partial slidable range at a midway position.

Abstract: A cutting device for cutting predetermined figures out of an elongated, thin portion of a plastically deformable material, comprising a table top, which exhibits a planar table surface for supporting the elongated portion.

Abstract: A front part of a guide section is made to be a detachable separate sub fence having a guide face, a face of the guide section to which the sub fence is fitted, is made to be a second guide face in parallel with the guide face rising from the top face of a table. The second guide face is in a plane in the rear of the guide face.

Abstract: Stabilization of a circular saw blade is provided, through use of a blade stabilizer mounted adjacent a workpiece in a fixed relationship to the workpiece and having a stabilizer contact element adapted to bear against the circular saw blade and exert a force against the saw blade in a direction substantially perpendicular to a cutting plane of the saw blade at a point on at least one of the blade faces on the working side of the blade, proximate an axis of motion passing through an axis of rotation of the saw blade and the workpiece in the cutting plane, as the circular saw blade and/or the workpiece move relative to one another along the axis of motion. The axis of motion may be linear or curved. Some embodiments include additional blade stabilizers.