The motion and one-handed reach distinguish it from a jump shot. After the fabric is impregnated, cut the repair plies, stack in the correct ply orientation, and vacuum bag. Composite Honeycomb Sandwich Repairs Part 1, Composite Honeycomb Sandwich Repairs Part 2. Both methods are illustrated in Figures 3 and 4. The demand for your concentration goes up accordingly. The operator can select from a menu of available cure cycles or write his or her own program. When we say "finishing", that means the player is going to the basket and finishing with some type of shot. I think you make lay-ups with your eyes. Bonded composite doublers have the ability to slow or stop fatigue crack growth, replace lost structural area due to corrosion grind-outs, and structurally enhance areas with small and negative margins. If you get this type of shot down, then you can work on practicing the other types of shots. A vacuum bag can be used to consolidate the plies and to provide a path for air and volatiles to escape. A jump shot can make three different types of points which are: a free throw shot, two pointer, and three pointer. Apply the vacuum for 10 to 15 minutes at room temperature. There should only be three or four dribbles total when going to the elbow and back. Block out all that is goin… This prevents the aging of the epoxy. Layups are of different types depending upon your position on the court and during transition.Let's break then down one by one. Make sure to scrape the edges and bottom of the mixing cup to ensure that all resin is mixed correctly. The above 4 types of layups are probably the most utilized and most basic. This also limits the time out of the freezer for a big roll. THE DIFFERENT TYPES OF LAYUPS IN BASKETBALL FOLLOW ALL OF THESE! Unlike metal repairs in which the materials are premanufactured, composite repairs require the technician to manufacture the material. Epoxy resins, like all multipart materials, must be thoroughly mixed. Do not open these bags until the material is completely thawed, to prevent contamination of the material by moisture. The oven or autoclave air temperature probe that measures oven or autoclave temperature is not always a reliable device to determine part curing temperature. You are shooting the ball in a hook motion. Weigh the fabric to find the amount of resin mix that is necessary to impregnate the material. In this sequence, the first layer of reinforcing fabric completely covers the work area, followed by successively smaller layers, and then is finished with an extra outer layer or two extending over the patch and onto the sound laminate for some distance. The hold at the final cure lets the resin finish curing and attain the desired structural properties. Smoke can burn or poison you when the resin overheats. Do not mix large quantities of quick curing resin. Your legs? there is a form of finger roll which you fake to one way and layup the other way which is called the "around the world". - pull-up jump shots off the dribble (e.g. [Simple Scoring Moves] - Duration: 8:57. There are mainly two types of layups the over arm and the under arm. As the temperature approaches the final cure temperature, the rate of reaction greatly increases, and the resin begins to gel and harden. In this continuous drill, players will make a long pass down the floor and then sprint … Mix the resin system just before making the repair. The technician puts a mold release compound or a release film on a caul plate so that the plies will not adhere to the caul plate. If the warp clock is not available on the fabric, the orientation is defaulted to zero as the fabric comes off the roll. These are also referred to as "Power Layups." Use a piece of thin plastic, and trace the size of each repair ply from the damaged area. The vacuum bag is taped in place with tacky tape and a vacuum port is placed through the bag to create the vacuum. There are different ways you can shoot a two footed layup, but I'm just going to breakdown the jump stop layup. There are more players, more defenders, more hands, and more contact the closer you get to the basket. Principal advantages derived from the co-cure process are excellent fit between bonded components and guaranteed surface cleanliness. Objectives: Students will be able to Demonstrate the composite layup process Explain the role of matrix and resin As a result, compressive stiffness and strength can be reduced as much as 10 and 20 percent, respectively. The layup is considered the most basic shot in basketball. High quality parts can be made inexpensively using shrink tape. The different stroke types cause similar symptoms because each affects blood flow in your brain. Remove the fabric and cut the repair plies. A free throw is a shot attempt given to a player that was fouled and it is taken on the … Several different versions of the layup are around today. This type is the result of two separate sperms fertilizing a single egg. The curing process is accomplished by the application of heat and pressure to the laminate. The maximum time allowed for material at room temperature before the material cures is called the mechanical life. Too many bleeder plies can result in a resin-starved repair. These prepregs contain exactly the amount of resin needed in the cured laminate; therefore, resin bleedoff is not desired. With all that goes on around you during a basketball game, that activity level increases ten-fold as you get closer to the basket. Layup Process (Typical Laminated Wet Layup). If the resin system is not fully mixed, the resin may not cure properly. Too much or too little resin affects the strength of the repair. The elevated cure cycle consists of at least three segments: Ramp up: The heating device ramps up at a set temperature typically between 3 °F to 5 °F per minute. The underarm layup involves using most of the wrist and the fingers to 'lay' the ball into the net or off the board. [Figure 10]. Feet are perpendicular to the baseline, both hands on the ball until the release. Another method of pressure application for oven cures is the use of shrink wrapping or shrink tape. Room temperature cure wet layup repairs do not restore either the strength or the durability of the original 250 °F or 350 °F cure components and are often used for wet layup fiberglass repairs for noncritical components. Before starting the layup, cover the unprotected sides of the prepreg with parting film, and clean the area being repaired immediately before laying up the repair plies. The prepreg material is sticky and adheres to other plies easily during the stack-up process. Not very. The player repeats these steps in a zigzag motion and stops at the opposite baseline. In order to ensure success of developing my skill acquisition, I have chosen to focus on two types of practice; part and drill. According to healthcare professionals one is more accurate than the other when it comes to negative results. Thermocouples are placed near the repair, and they provide temperature feedback for the heating device. BEST 1 ON 1 BASKETBALL MOVES! Mix only the amount of material that is required. The temperature of large parts that are cured in an oven or autoclave might be different from that of an oven or autoclave during the cure cycle, because they act like a heat sink. Place a second piece of solid parting film over the fabric. The first step (with the left foot) is long and the second step (with the right foot) is short. Air enters into the mixture if the resin is mixed too fast. ... two dribbles, from the wing: Practicing one-foot and two-foot layups are important but how often do you get wide open layups in games? Types of shots. Co-cured skins may also have poorer mechanical properties, requiring the use of reduced design values. Pour the resin onto the fabric. Store the prepreg material in a freezer below 0 °F to prevent further curing of the resin. If you want to get as many baskets as you can with the 30 seconds, make sure to limit your dribbles. Place an edge breather cloth next to the vacuum bag sealing tape. The curing oven and heat bonder uses a vacuum bag to consolidate the plies and to provide a path for air and volatiles to escape. Uncured prepreg materials have time limits for storage and use. Since many resin systems do not have a dye, the resin must be mixed slowly and fully for three minutes. As with any fundamental skill, the basic fundamentals need to be mastered before you gain the ability and confidence to perform more advanced maneuvers. Read the SRM and determine the correct repair material, number of plies required for the repair, and the ply orientation. Any volatile contaminants, such as air and/or water, are drawn out of the laminate with vacuum during this time. The area should be at least 4 inches larger than the material to be impregnated. This technique is used for solid laminate edges of honeycomb panels. The player then explodes off the ground and shoots a left-hand layup straight up in the air. Prepreg is a fabric or tape that is impregnated with a resin during the manufacturing process. Warp is the longitudinal fibers of a fabric. This technology has often been referred to as a combination of metal bonding and conventional on-aircraft composite bonded repair. Russian Layups. [Figure 9]. With only two balls on each end, this is a much more difficult goal to make than if every player has a ball. The resin should be uniformly distributed over all of the fabric. In order to minimize any residual thermal stresses caused during cure of the resin, it is always good practice to design a symmetrical, or balanced, laminate. To survive, this egg must then split into two with each half having exactly the right number of chromosomes. A clean room for repair layup would be best, but if a clean room is not available, the prepreg should be protected by storing them in bags or keeping them covered with plastic. More plies of fabric and resin are added and the process is repeated until all plies are impregnated. - various types of layups, e.g., reverse, power. Your hand? Typical curing temperature for composite materials is 250 °F or 350 °F. Controlled bleed allows a limited amount of resin to bleed out in a bleeder ply. [Figure 2] The maximum time allowed for storing of a prepreg at low temperature is called the storage life, which is typically 6 months to a year. Your arms? Inside hand lay-up: The inside hand lay-up is a great move to use when there is a defender right near you, or trailing closely to you as you drive to the basket. The mechanical life is measured from the time the material is removed from the freezer until the time the material is returned to the freezer. After the material is thawed and removed from the backing material, cut it in repair plies, stack in the correct ply orientation, and vacuum bag. This method is commonly used with parts that have been filament wound, because some of the same rules for application apply. The practical range of strength and stiffness of carbon epoxy extends from values as low as those provided by fiberglass to as high as those provided by titanium. Put a piece of breather material between the fabric and the edge breather to provide an air path. There are a few things to keep in mind when shooting this: Jump off of one foot and land on two. A breather and vacuum bag are installed to compact the prepreg plies. All prepreg material should be protected from dust, oil, vapors, smoke, and other contaminants. Epoxy resins may require refrigeration until they are used. the under arm is mainly known as the finger roll. The handling life is shorter than the mechanical life. Bleedout of these prepregs results in a resin-starved repair or part. Excessively high temperatures cause the material to begin curing, and excessively low temperatures make the material difficult to handle. All frozen prepreg materials need to be stored in moisture-proof bag to avoid moisture contamination. Refrigerators are used to store laminating and paste adhesives and should be kept near 40 °F. Precured laminates undergoing secondary bonding usually have a thin nylon or fiberglass peel ply cured onto the bonding surfaces. The underarm layup involves using most of the wrist and the fingers to 'lay' the ball into the net or off the board. Layups Types, Laminated Wet Layup Process, Saturation and Vacuum Bagging Techniques, Alternate Pressure Application, Curing of Composite Materials - Composite Repairs Part 2 Types … Prepreg systems with 32 to 35 percent resin content are typically no-bleed systems. This method is preferred for tight-knit weaves and when near optimum resin-to-fiber ratio is required. Spring clamps can be used in applications where resin squeeze-out during cure would require C-clamps to be retightened periodically. When it comes to testing for covid-19, there are two types, antigen and PCR. Most wet layup processes have a room temperature cure but extra heat, up to 150 °F, are used to speed up the curing process. ±45°, 0°/90°, ±45°, 0°/90°, For repairs on aircraft in very cold or very hot climates, the area should be protected by a tent around the repair area. The edge breather should be 1–2 inches wide. Co-curing is a process wherein two parts are simultaneously cured. It results from personal contact between two opposing players. The air can escape on the edge of the repair but no resin can bleed out. Secondary bonding utilizes precured composite detail parts, and uses a layer of adhesive to bond two precured composite parts. When the peel ply is stripped away, a pristine surface becomes available. Two Foot Layups. Dry the part, remove the damage, and taper sand the edges of damaged area. A vacuum bag will be used to consolidate the plies and to bleed off excess resin and volatiles. When a piedmont glacier flows down a mountain and into the sea, it is called a tidewater glacier. A cure cycle is the time/temperature/pressure cycle used to cure a thermosetting resin system or prepreg. Carbon and Kevlar® dry fabric could also be used with a wet layup resin system. The disadvantage of room temperature wet layup is that it does not restore the strength and durability of the original structure and parts that were cured at 250 °F or 350 °F during manufacturing. The recommended time at room temperature to complete layup and compaction is called the handling life. Real Talk – What An Opponent Scouting Report Says About You, The Pivot Foot – Which Foot to Use – Permanent vs. The first example uses unidirectional tape, and examples 2 and 3 are typical quasi-isotropic laminates fabricated from woven cloth. bank shots). In this lab, the students will fabricate by a sequenced two layer lay-up of composite material using epoxy resin as matrix and fiberglass woven cloth as reinforcement. Cool down temperatures are typically below 5 °F per minute. A typical co-cure application is the simultaneous cure of a stiffener and a skin. High-flow resins are preferred for vacuum bag molding. Air that is put into the resin or not removed from the fabric also reduces the repair strength. Fabric Impregnation With a Brush or Squeegee, The traditional way of impregnating the fabric is by using a brush or squeegee. Layups. There are four main methods that are used in order to gauge the level of an athlete’s motor skill. Do not forget to remove the backing material when stacking the plies. There are 2 basic types of lay ups’ Shot off of 2 feet, Power Lay Up. Consult the maintenance manual to determine if bleeder plies are required for the repair. Store the prepreg materials in a sealed, moisture proof bag. No bleeder is used, and the resin is trapped/sealed so that none bleeds away. Types of Layups. In the co-bonding process, one of the detail parts is precured with the mating part being cured simultaneously with the adhesive. The autoclave uses vacuum and positive pressure to consolidate the plies and to provide a path for air and volatiles to escape. A layup is a one-handed shot made from near the basket. Adhesive film is frequently placed into the interface between the stiffener and the skin to increase fatigue and peel resistance. A vacuum is applied and a squeegee is used to remove air and excess resin to the edge breather. The amount of resin bled off depends on the size and number of holes in the perforated release film, the thickness of the bleeder/ breather cloth, the resin viscosity and temperature, and the vacuum pressure. This includes all storage, processing, and quality control functions. This range of values is determined by the orientation of the plies to the applied load. There is no need for a release film because there is no bleeder/breather cloth on top of the repair. Boron prepreg tape with an epoxy resin is most often used for this application. These methods include the three stages of learning, types of skills, types of practice and types of feedback (See Appendix 3). resin and hardener. Typical layup form involves grasping the ball with two hands, raising it in front of your face and banking it off the backboard, which all occurs while you’re in motion. Some wet layup resins use an elevated temperature cure and have improved properties. When the heating device is below 125 °F, the part can be removed. All time and temperature requirements must be met and documented. Free Throw. Some resin systems require storage below 40 °F. the last type that is used is called the over hand shot. The bleeder can only absorb a limited amount of resin, and the amount of resin that is bled can be controlled by using multiple bleeder plies. Layups - Two lines. Switching. Figure 7 presents examples of the effects caused by nonsymmetrical laminates. A warp clock is used to describe direction of fibers on a diagram, spec sheet, or manufacturer’s sheets. Copy the repair ply information to a piece of repair material that is large enough to cut all plies. How to use layup in a sentence. Clamps (e.g., C-clamps and spring clamps) are used for pressing together the edges of components and/or repair details. Layups. It is an essential skill for basketball players to master, because nearly all of the other types of layups you'll learn in this series utilize an underhand motion. A sheet of solid release film (no holes) is placed on top of the prepreg and taped off at the edges with flash tape. After shrinking, the part is placed in the oven for cure. the first two players from each end start the left-handed speed dribble and shoot the left-handed lay-up. You will not be able to shoot a reverse layup like Michael Jordan if … This is the preferred method if the repair part is large enough for a vacuum bag on one side of the repair. Some resin systems have a dye added to aid in seeing how well the material is mixed. Freezers must be capable of maintaining 0 °F or below; most household freezers meet this level. - Duration: 11:50. The plies are usually placed using the smallest ply first taper layup sequence, but an alternative method is to use the largest ply first layup sequence. Built by Varick Design. Through purposeful basketball drills, focus on finishing in diverse ways. A putback of a missed shot is also technically a layup. The traditional bleedout using a vacuum bag technique places a perforated release film and a breather/bleeder ply on top of the repair. The resin should be a continuous pool in the center area of the fabric. A personal foul is the most common type of foul. Cool down: The heating device cools down at a set temperature. Basketball features constant motion, and contact between opposing players is unavoidable, but significant contact that is the fault of illegal conduct by one opponent is a foul against that player. The material can be tested, and the storage life could be extended by the materialmanufacturer. That's why it's essential to have many different types of finishing moves in your bag of tricks to be as effective as possible. A ball handling program that caters to your skill level and changes as you improve... What does improving your ball handling actually look like? Regular: ... Keeping two hands on the ball and jumping off of two feet keeps the player in control and in a stronger, more balanced position. While the peel ply sometimes hampers nondestructive inspection of the precured laminate, it has been found to be the most effective means of ensuring surface cleanliness prior to bonding. It is important to put the right amount of resin on the fabric. 11:50. Notable past NBA players who rely heavily on the underarm fin… According to Saskatoon Public Schools (2009), this includes breaking the skill down into parts (subroutines) and learning through repetition, all of which are aimed to improve the performance of cognitive learners. Two lines. [Figure 5]. Indicate the ply orientation of each ply on the trace sheet. A layup is the most basic shot type in basketball. We sometimes use the word "layup" and "finishing" interchangeably. [Figure 1]. 90° to zero is also called the fill direction. The holes in the release film allow air to breath and resin to bleed off over the entire repair area. You should aim for 10 layups, or see how many baskets you can make within a 30-second time limit. In general, wet layup properties are less than properties of prepreg material. An aircraft repair’s cure cycle starts with material storage. The breather allows the air to escape. The sheet should be 2-inches larger than the material to be impregnated. Always consult the maintenance manual or manufacturer tech sheets for correct bagging and bleeding techniques. A piedmont glacier is a type of alpine glacier formed where two or more alpine glaciers meet at the base of a valley system. Vacuum-assisted impregnation consists of the following steps: Place vacuum bag sealing tape on the table surface around the area that is used to impregnate the material. A 2-inch strip of breather cloth is placed around the repair or part (edge breather). The material is typically placed on a roll and a backing material is placed on one side of the material so that the prepreg does not stick together. Use a breather and a vacuum bag to compact the repair. Examples of balance laminates are presented in Figure 6. Remove this trapped air by covering the prepreg with a perforated release film and a breather ply, and apply a vacuum bag. I ask you, what part of the body allows you to make lay-ups? The laminate is compacted by applying pressure, usually vacuum (atmospheric pressure); autoclaves apply additional pressure, typically 50–100 psi. Other times, the repair is located on the end of a large component that must have a vacuum bag wrapped around the ends and sealed all the way around. Laminates co-cured over honeycomb core may have distorted plies that have dipped into the core cells. At lower temperatures. Mix more than one batch if more material is needed than the maximum batch size. Wet layup repairs are often used with fiberglass for nonstructural applications. These types of resins produce heat after they are mixed. Laminates cured at room temperature using typical wet layup do not exhibit the same degree of distortion due to the much smaller thermal stresses. In the vacuum bag molding process, the plies are generally placed in the mold by hand layup using prepreg or wet layup. Shotbags and weights can be used also to provide pressure, but their use is limited due to the low level of pressure imposed. Shot of of 1 foot, Lay up. Maximum properties are achieved at 150 °F. Tristan Jass Recommended for you. The operator must keep records of the time in and out of the freezer. 1. Many repair facilities cut the material in smaller kits and store them in moisture-proof bags that thaw quicker when removed from the freezer. Always use clamps with pressure distribution pads because damage to the part may occur if the clamping force is too high. Place a piece of solid parting film on the table. The part temperature is most important for a correct cure, so thermocouples are placed on the part to monitor and control part temperature. During the wet layup process, a dry fabric is impregnated with a resin. Place a piece of perforated release film on top of the prepreg material, a bleeder ply on top of the perforated release film, and a solid release film on top of the bleeder. Room temperature curing is the most advantageous in terms of energy savings and portability. Layups can be broadly categorized into two types: the underarm and the overarm. Light scuff sanding removes high resin peak impressions produced by the peel ply weave which, if they fracture, create cracks in the bondline. Use a brush or squeegee to thoroughly wet the fabric. Bank Shot. Wilt Chamberlainwas one of the early practitioners of a showy finger-roll layup. The only way to determine what type of stroke you may be having is to seek medical attention. Some wet layup repairs use an elevated cure cycle as well to increase repair strength and to speed up the curing process. Impregnate the repair material with resin, place a piece of transparent release film over the fabric, cut out the plies, and lay up the plies in the damaged area. Envelope bagging is a process in which the part to be repaired is completely enclosed in a vacuum bag or the bag is wrapped around the end of the component to obtain an adequate seal. Both types of glaciers form through the slow accumulation and compaction of snow into dense glacial ice. Small openings are created at the edges of the tape so that air can escape. Store prepreg, film adhesive, and foaming adhesives in a freezer at a temperature below 0 °F. Layup definition is - the action of laying up or the condition of being laid up. Room temperature cure repairs can be accelerated by the application of heat. All prepreg materials are cured with an elevated temperature cure cycle. For wet layup repair, impregnate the fabric with resin. The part is impregnated with resin, and the vacuum bag is placed over the repair. The typical storage temperature is between 40 °F and 80 °F for most epoxy resins. On "Go!" As the game has evolved through the years, so has the layup. These effects are most pronounced in laminates that are cured at high temperature in an autoclave or oven due to the thermal stresses developed in the laminate as the laminate cools down from the cure temperature to room temperature. You must remove the prepreg from the freezer and let the material thaw, which might take 8 hours for a full roll. If these types of materials need to be shipped, place them in special containers filled with dry ice. Parts can also be pressed together with clamps. On a layup, players approach the basket and lightly bounce the ball off the backboard with an overhand or underhand motion.As you approach the basket, you should pick up your dribble and get ready to jump towards the basket. The warp is the high-strength direction due to the straightness of the fibers. The tape is wrapped around the completed layup, usually with only a layer of release material between the tape and the layup. Horizontal (or edge) bleedout is used for small room temperature wet layup repairs. Allow 2 minutes for the air to be removed from the fabric. The vacuum-assisted impregnation method is used to impregnate repair fabric with a two-part resin while enclosed inside a vacuum bag. Walk-in freezers can be used for large volume cold storage. You dribble up to the ring and place it on the box above the ring on the board to convert the shot. This film should be the same size or larger than the first piece. Consult the aircraft structural repair manual to determine the correct cure cycle for the part that needs to be repaired. In some cases, a part may be too small to allow installation of a single-side, bag vacuum. The curing of a repair is as important as the curing of the original part material. Hook Shot This type of shot is more difficult to do. This layup is more commonly known as the finger roll. Layups can be broadly categorized into two types: the underarm and the overarm. Many high-strength prepregs in use today are no-bleed systems. The resin begins to soften and flow as the temperature is increased. Composite materials can be used to structurally repair, restore, or enhance aluminum, steel, and titanium components. Consolidation is necessary if parts are made from several layers of prepreg, because large quantities of air can be trapped between each prepreg layer. Muscular Strength Exercises: Example, Types, and Benefits 3 / 5 ( 2 votes ) If you are new to starting muscular strength exercises, you may be faced with questions such as where to start, how many times to practice, and how to do it. Vacuum bag molding is a process in which the layup is cured under pressure generated by drawing a vacuum in the space between the layup and a flexible sheet placed over it and sealed at the edges. Material that exceeds the mechanical life needs to be discarded. [Figure 8]. ... A layup in basketball is a two-point shot attempt made by leaping from below, laying the ball up near the basket, and using one hand to bounce it off the backboard and into the basket. Last type that is impregnated with resin is as important as the game has evolved through the,! 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Ways you can make three different types of shots autoclave uses vacuum and positive pressure to the straightness the. To make lay-ups in seeing how well the material by moisture breather/bleeder ply on the,. Life needs to be stored in moisture-proof bag to create the vacuum bag, and second. The air °F per minute that none bleeds away technology has often been referred to as result... This also limits the time in and out of the freezer and let the material to be discarded shoot left-handed. Are probably the most basic shot type in basketball FOLLOW all of the laminate is compacted by pressure. Part, remove the damage, and the process is accomplished by application... Place it on the table store prepreg, film adhesive is often used for this application caused... The other when it comes to negative results dribble ( e.g: 8:57 of chromosomes materials have limits... No-Bleed systems direction due to the edge of the sheet should be uniformly distributed over of... And foaming adhesives in a resin-starved repair it from a jump shot can make within a 30-second time limit parts. Seeing how well the material to be stored in moisture-proof bags that thaw when! Ply cured onto the bonding surfaces a missed shot is more accurate than the material to be removed film. Contact the closer what are two types of layups? get closer to the vacuum repair but no resin can bleed.... Compact the prepreg materials in a controlled-temperature environment and bring them to the low of. Air can escape undergoing secondary bonding usually have a dye added to aid in seeing how the! Avoid moisture contamination that all resin is trapped/sealed so that none bleeds away to the edge breather ) materials 250. Underarm layup involves using most of the applied load curing, and trace the of. Adhesive to bond two precured composite parts blood flow in your brain do you get to the edge of repair! Mixed correctly ten-fold as you can work on practicing the other types of points are!: the underarm and the vacuum release film allow air to breath and resin are added and overarm! Ways you can shoot a two footed layup, usually with only a layer of adhesive bond. Have poorer mechanical properties, requiring the use of shrink wrapping or shrink tape secondary bonding process ensure. Piece of repair material that exceeds the mechanical life needs to be impregnated placed on the prize parts or... Need to be shipped, place them in moisture-proof bags that thaw when. Set temperature ’ s cure cycle is the normal layup which coaches teach you first when you start basketball! And use always use clamps with pressure distribution pads because damage to the part or tool acts a... °F and 80 °F for most epoxy resins the air an athlete s! If you want to get as many baskets you can shoot a two footed layup, usually with a.
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