6 years ago Twisting the strands: When you're done neatly twisting the strands, you are ready to wrap the guts in Duct Tape. According to the report, the fire started on October 20 and burned uncontrolled for three days, effectively destroying the entire factory, which products … I'll once again show it with 2 colors of paracord to make things clear. Thank you, Reply The nine section chain whip is a flexible weapon which is easily concealed. In periods of rising demand, down-stream participants increase orders. Try to keep them in a round section as much as possible. It would be very hard to plait it tight right as you do it. If you've ever made your own twisted rope, you know how to do this properly. Work from the middle to get your 12 strands. The bullwhip effect is a distribution channel phenomenon in which demand forecasts yield supply chain inefficiencies. -    Now work with the opposite side's top strand as you would if the drop did not occur. Continue plaiting and tightening regularly up to the spot where the shortest gut-strand ends. Being paranoïd, I also whipped mine once above and twice below the main whipping to be sure it wouldn't come apart. These are the lengths I used and that worked for me. I'm not understanding which ones I braid normally and which set of strands I would need gutted when I'm braiding the paracord around the whip? We will now bind those first strands to the handle. Using your grinder/file/dremel/teeth (no, don't ! Take your time with this one, you'll get what you give. Just size up accordingly. I however do plan on doing a few other Instructables on that topic if people are interested in it. Go on for another couple inches and cut the 2nd one. However, studies suggest that people with increased need for safety and security seem to perform worse than risk-takers in a simulated supply chain environment. Once again, the pictures for this step are an illustration and not the actual whip. The more members who conduct such rounding of order quantities, the more likely a distortion occurs of the original quantities that were demanded. But they still have to work through differences on issues like boosting to the minimum wage and unemployment aid. Trim the cords close to the whippings ( not to close so as not to let them spill open ). To finish off I screwed a round head brass head screw up the center of the rod. 2nd when you add core strands remember to add the corresponding amount of plaiting strands the rule is you will need 4 plaiting strands for your longest core strand then add 2 plaiting strands for every core strand you add. Each member updates its own demand forecast based on the orders collected from its “downstream” customer. Basically, you twist every strand a bit in one direction and then lay it against the others wrapping it in the opposite direction. For … -    Measuring tape -    Patience Optionally you might find useful to have: -    Some kind of marlinspike needle for dressing the fancy knots. You will then have to put the corresponding lengths of chain into the corresponding strands and this can be a real pain without the proper technique. Forecasts are based on statistics, and they are rarely perfectly accurate. Chen, Y. F., Z. Drezner, J. K. Ryan and D. Simchi-Levi (2000), Quantifying the Bullwhip Effect in a Simple Supply Chain: The Impact of Forecasting, Lead Times and Information. Reply You will also need to know ( or be willing to learn) some 'advanced' knots to make it look nice, and I won't cover that lengthly point in this Instructable since there is already a lot of resources on that topic on the Net. Thanks for your comments :)I'm glad you enjoyed it.Any pics ? However, its impact is limited to the worst-case order amplification when the demand is unpredictable. There are 3 suppliers who sells nine section chain whip on Alibaba.com, mainly located in Asia. This model has been successfully implemented in Wal-Mart's distribution system. 4 years ago. The formula is under 2 , over 1. Both strands will remain hidden under the plait. I also suggest to think in advance of a way of storing the leftover inner strands for later use if you don't want to end up with 7times more of an inner strand spaghetti meal than what you began with :). Mix cake mix, pudding, oil, water and rum. Keep 15 cm of strands at the end to tie the fall knot. The result was well worth it, this thing cracks loudly and easily as expected and it ended up being a very rewarding project. A Zippo is a nice choice, it will get you a nice flame and stand on the desk by itself while you use both hands to melt/cut the paracord over the flame. You will need: For the guts : -    x1    2m strand  ( 6.5ft ) -    x1    1m strand   (3.30 ft ) -    x1    80cm strand   ( 2.6ft ) -    x1    50 cm strand (1.6 ft) along with the corresponding 3 lengths of  lamp chain for the shorter ones : -    90cm   (2.95ft ) -    60 cm   (1.95ft ) -    30 cm   (1ft ) The first layer wil be a 8 strand round plait ( 4 strands folded in half will make it neater ) -     2x 5m       -> 4x 2,5       (16.4ft ) -     1X 3m      ->  2x 1,5      (9.90 ft) -     1x 4,30m -> 2x 2,15     (14.10 ft ) The outer layer will be a 12 strand plait ( again, 6 strands folded in half ) -    2x 7,30m   (24 ft)     -    1x 5,50m   (18 ft )  -    1x 5m         (16.4ft) -    1x 4,30m   (14.10ft ) -    1x 3m         (9.90 ft ) Please note that this is not an exact science. In spite of having safety stocks there is still the hazard of stock-outs which result in poor customer service and lost sales. For this first step, you will need your first 4 strands of paracord and the 3 corresponding lengths of lamp chain: Paracord: -    x1    2m strand (6.55 ft ) -    x1    1m strand (3.30 ft ) -    x1    80cm strand (2.60ft ) -    x1    50 cm strand (1.60ft ) Chain: -    90cm     (3 ft ) -    60 cm    (2 ft ) -    30 cm    (1 ft ) You will remove the inner strands from the 3 shortest pieces... but wait ! [5] In accordance with Dellaert, Udenio and Vatamidou (2017),[6] one of the main behavioural causes that contribute to the bullwhip effect is the under-estimation of the pipeline. Take some time time to make this really tight. This version is made of eight sections plus a swivel handle each connected by 4 heavy duty links. Lay the tape 45° across the strands, and wrap it up to the end of the 3rd cord in a single and even layer. Lastly after you determine how long you want the whip ro be mke sure to have your core strands drop off evenly throughout the whip. Quantitative Models for. remember to keep things tight and even. Management Science 58.5 (2012): 860–875. Lee, H.L. We will be making a 2.50m ( ~8.2ft) whip, from handle tip to fall, not including the cracker. If you haven't, here is a short video illustrating the process. At this point you probably got the trick, that's all there is to it: -    You take one sides' top strand, -    make it travel around the back , -    under 2-over2 on the opposite side -    lay it at the bottom of it's beginning side. For example, on the extra small beard, you have it written to chain 5 and skip 7 stitches. Each section is 3 1/2" with an overall length of approximately 56". Reply Weight of Whip is Approx 827 grams. -Wushu designated 9 section whip chain 6.3 oz. Then you can finally make it as tight as you can, and trim the edges. [7] In addition, the complementary bias, over-estimation of the pipeline, also has a negative effect under such conditions. When making the round turns, let the inner loop be out for a few turns every now and then. Because customer demand is rarely perfectly stable, businesses must forecast demand to properly position inventory and other resources. The more members in the chain, the less these forecast updates reflect actual demand from end customers. (2010). Great design, excellent and clear instructable. In addition to greater safety stocks, the described effect can lead to either inefficient production or excessive inventory, as each producer needs to fulfill the demand of its customers in the supply chain. Human Factors in Supply Chain Management. – 176 grams -Sold today as traditional 9 section whip chain 1 lbs 5 oz. If by mistake your last inner strand slips out of the sheath early or alone, you might try to feed it back through the cord by tying it to a long piece of stiff wire ( longer than the cord ). This part might be a little tricky. Have fun and play safe! The effect is that variations are amplified as one moves upstream in the supply chain (further from the customer). The formula for the 10 plait is under 3, over 2. This page was last edited on 31 December 2020, at 07:20. -    Duct tape and/or electrical tape -    1 "Big" Nail ( Big meaning that it would do the trick as a handle ) -    Some medium width string to tie the cracker -    Something that cuts ( my trusted Surge in that case) -    Something that makes fire to neatly melt the ends of your butchered paracord. Prepare the "fall" as shown: -    Cut an armlength of paracord -    Be sure to melt both ends -    Pierce it near the top -    Thread the other end of it through the hole ( This can be very tricky, make sure you melt the end of the cord in the smoothest and sharpest fashion you can.) Mr. 9 is the code name of a former Frontier Agent and bounty hunter of Baroque Works, and Miss Wednesday's former assigned partner during her infiltration.1 Due to his actions, he is one of the main antagonists of the Reverse Mountain Arc, and a supporting antagonist in the Whisky Peak Arc. You've just completed one "pass" Now , do the same with the top strand from the left side, only in reverse : -    Take the working strand -    Pass it around the back so it gets to the right side -    On this side you have your 4 right strands. Kult Of Athena - Misc - NU0079 - Nine Section Chain Whip - The chain whip is a classic Chinese martial arts weapon used in modern and traditional wushu. Also this project works with mainly gutted paracord so you will end up with vast amounts of unused inner strands. -    A file or some kind of grinder or Dremel tool to cut grooves in the "handle" -    A spot  to tie the whip to while you're plaiting ( holding it between my knees worked well in my case ) you could also use a lightly tightened vice. For maximum safety, you should seek … 6.5 oz. 10. Research indicates that a fluctuation in point-of-sale demand of +/- five percent will be interpreted by supply chain participants as a change in demand of up to +/- forty percent. started yesterday and only put around 5 and a half hours into it. Now the to-be-dropped strand on the other side should have reached the next-to-top posiion. ( I also plan on doing separate instructables on these various knots soon), - The half hitch and the overhand knot ( you DO know them ,trust me :) ) - Basic rope whipping ( to hold strands together, the picture below should be enough ) - The constrictor knot, serves the same purpose as the above. -    Simply let the to be dropped strand fall under the plane in which all strands of the corresponding side are aligned. thanks for sharing the pictures :), https://sites.google.com/site/newknoticalarts/tutorials/star-knot, DIY Composite Layup and Vacuum Bagging - Making a Carbon Fiber RipSurf for Braille Skateboarding. The concept first appeared in Jay Forrester's Industrial Dynamics (1961) and thus it is also known as the Forrester effect. pictures and video below. 9 Section Whip Chain. From now your gutted paracord will tend to lay flat. 9 years ago In periods of falling demand, orders fall or stop, thereby not reducing inventory. When you reach one of the points where the whip gets thinner, you'll need to cleanly "drop" two of your working strands so the number of them remains adequate to the thickness. How are ratings calculated? You are now ready to begin plaiting the first layer. Get the appropriate lengths of paracord to make this 8 strand round plait: -     2x 5m           -> 4x 2,5      (16.4ft) -     1X 3m          ->  2x 1,5     ( 9.90 ft ) -     1x 4,30m     -> 2x 2,15    (14.10 ft ) Take the inner strands out of them, save for later use. FIrst , cover the transition with a looong, tight whipping. The nine section chain whip is one of those weapons that looks amazing but it’s hard to imagine how people would fight with them. Don't get frustrated if you can't get it right, i had to do this again a few times, both during the original project and the shooting of the additionnal pictures. Only the first three of the list are really mandatory if all you need is a working whip. Resist the temptation of playing with it too much though, you wouldn't like to see all that hard plaiting coming undone would you ? You should have a few inches of strands left ( up to 15-20 cm / 0.5-0.6 ft ) When you're there, temporarly tape the strands together so they dont come appart while you're plaiting the second layer. Ok, now go outside for a test run of your new toy. Australian imaging publication, Inside Imaging, is reporting that some camera manufacturers could see supply chain issues following an October fire at an AKM Semiconductor audio chip factory in Nobeoka, Miyazaki Prefecture, Japan. Preheat oven to 350°. This chain whip is made with thinner, lighter links allowing it to move faster and is great for Chinese wushu practice competitions and performances. Because forecast errors are given, companies often carry an inventory buffer called "safety stock". Order batching takes place when each member collect order quantities from their downstream customer and rounds up or down to meet production constrains such as equipment setup times or truckload quantities. ( Although mastering the technique might take some mishaps first ;) From now on, remember to keep your strands neat, flat and dont let them overlap. It took me maybe a week or so worth of evenings to complete it. You will have 4 strands laying neatly arranged on each side. [citation needed] Much like cracking a whip, a small flick of the wrist (a shift in point-of-sale demand) can cause a large motion at the end of the whip (manufacturer's response). It sums up everything number related :) You will need (Total): -    60m (196 ft.) of paracord -    2m (6.5ft ) of lamp chain Then cut it to the following lengths: For the guts : -    x1    2m strand  ( 6.5ft ) -    x1    1m strand   (3.30 ft ) -    x1    80cm strand   ( 2.6ft ) -    x1    50 cm strand (1.6 ft) Along with the corresponding 3 lengths of  lamp chain for the shorter strands : -    90cm   (2.95ft ) -    60 cm   (1.95ft ) -    30 cm   (1ft ) The first layer is a 8 strand round plait -     2x 5m       -> 4x 2,5       (16.4ft ) -     1X 3m      ->  2x 1,5      (9.90 ft) -     1x 4,30m -> 2x 2,15     (14.10 ft ) The outer layer is a 12 strand plait: -    2x 7,30m   (24 ft)     -    1x 5,50m   (18 ft )  -    1x 5m         (16.4ft) -    1x 4,30m   (14.10ft ) -    1x 3m         (9.90 ft ) The formulas for the various plaits: 12 strand:   Under 3 Over 3 10 strand:   Under 3 Over 2 8 strand:     Under 2 Over 2 6 strand:     Under 2 Over 1 4 strand:     Under 1 Over 1. Weight of Whip is Approx 676 grams. Moreover, repeated hiring and dismissal of employees to manage the demand variability induces further costs due to training and possible lay-offs. :) You might find that the transition between the handle and the core is still a bit limp, we're going to reinforce things up a bit. Lecture Notes in Computer Science Volume 8018, 2013, pp 423-432, Learn how and when to remove this template message, Chain reaction: Managing a supply chain is becoming a bit like rocket science, "Behavioral causes of the bullwhip effect: An analysis using linear control theory", "How health systems are responding as COVID-19 squeezes the medical supply chain", "What procurement managers should expect from a 'bullwhip on crack, "Bullwhips and Beer: Why Supply Chain Management is so Difficult", https://en.wikipedia.org/w/index.php?title=Bullwhip_effect&oldid=997387642, Copied and pasted articles and sections from June 2020, All copied and pasted articles and sections, Articles lacking in-text citations from July 2013, Short description is different from Wikidata, Articles with unsourced statements from January 2017, Articles needing cleanup from August 2014, Articles with sections that need to be turned into prose from August 2014, Creative Commons Attribution-ShareAlike License, Mis-perceptions of feedback and time delays, Panic ordering reactions after unmet demand, Perceived risk of other players' bounded rationality, Adjustment of inventory control parameters with each demand observation, Lean and JIT style management of inventories and a chase production strategy, Coordinate with retailers to spread deliveries evenly, Order allocation based on past sales instead of current size in case of shortage. Filter by. For example, many consumer goods have fairly consistent consumption at retail, but this signal becomes more chaotic and unpredictable as the focus moves away from consumer purchasing behavior. A summary of Part X (Section7) in Nathaniel Hawthorne's The Scarlet Letter. It is always possible to find a biased policy that outperforms an unbiased policy for any one performance metric. Naval Research Logistics, 47, 269–286. People with high self-efficacy experience less trouble handling the bullwhip-effect in the supply chain.[8]. Important: This item can not be shipped to states of California, Massachusetts, and New York or Canada. This behaviour appears to add variability to quantities ordered and uncertainty to forecast. [11]. The impact of the bullwhip effect has been especially acute at the beginning stages of the COVID-19 pandemic, when sudden spikes in demand for everything from medical supplies such as masks or ventilators[10] to consumer items such as toilet paper or eggs created feedback loops of panic buying, hoarding, and rationing. These will be the strands you will drop ( the shortest ones to make things simple ). Don't make it tight yet. The causes can further be divided into behavioral and operational causes. To make sure your whip will have consistent behaviour when bent in all directions, you should then twist the strands together. Then put it's end through the loop of your fall, tighten the loop, and pull on the fall so it goes inside the knots, altogether with your last strand. Senate Democrats are moving ahead to pass Joe Biden's $1.9 trillion stimulus. on Introduction. In such situations, it has been found that biased policies (both under-estimating and over-estimating the pipeline) perform just as well as unbiased policies. Tempelmeier, H. (2006). Leave suggestions in the comments if you think that some steps deserve further explanation. Double the measurements. When you've tied your 5 knots ( the last one being the one tied with the core strand), use the help of something thin like your marlinspike, a big nail or the awl from your favorite multitool to thread this last strand through all of the previous knots. Price fluctuations as a result of inflationary factors, quantity discounts, or sales tend to stimulate customers to buy larger quantities than they require. Here's a final reference sheet with all the revealant data for making the whip once you've understood the process. Rationing and gaming generate inconsistencies in the ordering information that is being received. Our nine section whip chain is made of steel. Overall, unbiased policies offer in general good results under a large range of demand types. This chain whip is made with thinner, lighter links allowing it to move faster and is great for Chinese wushu practice competitions and performances. So how does one determine that? I have thoughts but I'd rather not plait for hours and come up short, and I don't want to have 10 ft extra that I'm working with on each side. Journal of Supply Chain Management 46 (1), pp. Do this a couple of inches or so ( 5 cm , 0.15ft ), being sure you trap both dropped strands against the core with each pass, then cut one of the strands. - Any kind of multi-strand knot you know and would like to use as a decoration on the handle ( crown knot wrappings, half hitch coverings, various round braids..). (  preceding it with half hitches between every ball might  help to improve it's lengthwise pull tolerance as knots tied in those slick inner strands tend to be a bit slippery ) Then just pull the inner strand out of the cord to get the chain in place and cut the string off. Very clear. Sort by. As you reach the thinning spot, two of your strands will be close to running out as you'll probably have only a few inches left on them( 10-15 cm or so (0.5 ft )). This step is an easy one as well and should produce a seamless transition from 8 to 6 strand-plait. Let me know if you think making a hammock, net or bag out of them would be an interesting Instructable :). Stuff … Suffering a glut in green cars, sales and marketing developed a program to sell the excess inventory. My first para cord project ever and turned out better then I thought. This is by far one of the best instructions I've read. Want one twice as long? Otherwise the combined friction of all those turns wouldn't allow you to pull the loop inside the knot at the end. Great for beginners, kids or wushu practitioners. [5] Previous research has demonstrated that order smoothing and the bullwhip effect are concurrent in industry. Having said that, dynamic analysis reveals that order smoothing can degrade performance in the presence of demand shocks. That's the most frequent question I got since I published this.Unfortunately, I don't know of any "rule" that would allow to precisely calculate required lengths to use to hit for a given target length.Even if there was one, difference in plaiting tightness between different people could lead to wild variations.You may sift through all the comments for the project, some people have tried various lengths whips over the years, and some published the used lengths along the way.If you can't find what you need, you'll have to try by yourself, just remember to take notes of what you do and come back to share with others! Although these policies do not result in the best performance under certain criteria. You can run it once or twice around a soft round spot to make it even if you want. Nine Section Chain Whip Description. Fasten them where the groove is using a constrictor knot ( or two ) and using one of the inner strands you just took out ouf the cords. 7–7. Yes,thanks.Your link is indeed a mirror of the tutorial I was recommending. -    The formula changes now : form "under 2, over 2 ", it becomes "under 2 , over 1 " Make sur you "trap" the dropped strand agaisnt the core with the working one. All stars. 5 years ago. To make it : -    Take an arm length piece of your string -    Fold it in half, then twist the two strands together as you did when making the guts. Previous control-theoretic models have identified as causes the tradeoff between stationary and dynamic performance[4] as well as the use of independent controllers. Perfect for acing essays, tests, and quizzes, as well as for writing lesson plans. From there, follow the pictures to lay them out properly : -    Using a first pair ( again, which strands doesn't matter), cross them in front of the handle as pictured. ( A full face paintball mask would not be too much for beginners, it's SO easy to have the thing jump back at your face even if you think you are being carefull... And trust me...that hurts.) I was unable to find a homepage or anything that links directly to his work to give him proper credit though. -    Tie both strands in an overhand knot a few cm from the end -    Fray the ends Then tie it to the fall as pictured. Overall length: 53" Handle length: 5" Demand forecast updating is accomplished individually by all members of a supply chain. Your link for the star knot is no longer working. The handle is cloth wrapped to … Instead, they read the increase in sales as an indication of growing demand for green cars and ramped up production.[3]. As I said in the introduction, this project will also require you to know and master a few knots, both for practical and decorative purposes. The bullwhip effect is a distribution channel phenomenon in which demand forecasts yield supply chain inefficiencies. I'll remind them in the revelant steps so you don't need to take notes for now. I had some leftover after this,but it is still better than lacking some length after hours of plaiting right ? So I have come up with a rough formula for creating a whip of any length you want. 9. I hope you enjoyed this instructable as much as I did doing this project. Even so, the modern Wushu Kung Fu practitioners these days do some amazing feats as do the Shaolin Temple Monks. -     It began at the top of the left side, and ended up at the bottom of it. The last thing we will need to make things fully functional is the cracker. When you reach the end of the plait you will have: -    4 strands from your plait -     1 strand from the core. A wide variety of nine section chain whip options are available to you, such as kung fu. Hey question how many strands of the paracord do I need to gut? When you reach it , go just a bit past it ( by a few passes ) and then you'll proceed to "drop" a first couple of strands to accommodate the thickness change: see next step. It should not be that hard for those of you who know their way through ropes, knots and braiding. This demand information is used to queue shipments from the Wal-Mart distribution center to the store and from the supplier to the Wal-Mart distribution center.

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