Design tools multifunction equipment

Product design can be defined as idea generation, concept development, testing and implementation of manufacturing (physical objects) or services. Product designers create concepts and evaluate ideas, making ideas come true through products in a more systematic approach. The purpose of this research is to help farmers who are engaged in SMEs chips. Tool attributes are derived from results brainstorming by tool designers. Design size data is obtained from direct observation and survey market of sliced chips on the market and according to consumer tastes. This versatile slicer is used to increase the production of farmers. The data obtained for the specification of the tool is data from the results of answers on questionnaires distributed directly to entrepreneurs SMEs chips residing in some areas, Medan Tuntungan, Medan, Indonesia. Brainstorming is a method used to generate a large number of ideas that most of these ideas will be discarded. With QFD method, compared multifunction slicing tool with 3 other competitors with the same attribute. Sub solutions are generated from the completion of any emerging issues, including in selecting attributes for bird repellents using measures Nigel Cross to maintain excellence and improve product quality. From an alternative generation with a combination of attributes, the result is an alternative 1 as the basic criterion in making an orange-drawer. Evaluate alternatives using Pairwise Comparison and scales AHP to calculate the weighting of each attribute and determine the ranking of each alternative. Value engineering is the final step in the design process with the aim of increasing the value of the product to the consumer and lowering the costs that must be incurred by the manufacturer


Introduction
Design can be defined as idea generation, concept development, testing and the execution of manufacturing (physical objects) or services. Product designers create concepts and evaluate ideas, making ideas come true through products in a more systematic approach. In other words, product design is a complete step that can be done to get the design of a desired tool. Improvement of tools in the field of agriculture to obtain increased production continues to be done .Both chemically and mechanically .One on the processing of agricultural products to supplement income and improve production quality. The production of chips from agriculture proceeds will increase in quality and quantity of yaan production gives farmers and UKM farmers an advantage in agriculture.
The farmers who are engaged in UKM chips perform their activities using a knife cutter. So, farmers take a long time to produce chips because it must be done manually. Therefore we created a multifunction slicer that can reduce the time and cost of production to farmers engaged in UKM. In addition to petrifying the farmers in terms of time and production costs 3rd NICTE IOP Conf. Series: Materials Science and Engineering 725 (2020) 012022 IOP Publishing doi:10.1088/1757-899X/725/1/012022 2 also helps in the worker's posture and deficiency while performing work that reduces the effects of the work on the panjag and results in the solid formation of the bones of the farmer's body. By using this slicer also workers do not need to measure with manual thickness of the slices of chips or bouquet, simply by adjusting the thickness of the bolts on the slicer tool then automatically the potato or chips that we slice will have the same thickness. In addition to the thickness of the chips that can be arranged we can also give a new innovation on the form of chips that we will make by changing the blades on the slicer with a jagged shape.
With these conditions it will greatly help farmers who have a weak economy in addition to helping in terms of quantity production also helps in providing new creations on the type of chips that will be marketed and help also in the field of product competitiveness in the market is now increasingly worldwide.

Methods
This study aims to show the importance of multipurpose knife tool that will be used by farmers engaged in the field of small and medium enterprises. By distributing questionnaires and surveys market, more detailed information about multifunction slicer is available. The first step in product design is to brainstorm. Brainstorming methods are well known for generating ideas. There are eight steps of brain-storming : forming groups and selecting group leaders, informing the brainstorming rules, group leaders declare initial problems, each group member thinking up ideas within 30 minutes, then writing and giving an opinion on the ideas generated, and finally collecting all papers as a result of evaluation from brainstorming. The sampling technique that will be used is purposive sampling because the population that will be the sample is the farmer engaged in small and medium business. After determining the number of samples, an open questionnaire, closed questionnaire, and AHP questionnaire were prepared. All types of questionnaires are used to determine what farmers expect from the design of the tools performed.With all the answers on the questionnaire, then tested the validity and reliability of the answers about the design of multifunctional slicer tool.
Furthermore, to determine the product characteristics used QFD method. QFD is a method to improve the quality of a product or service in order to understand what the customer needs and connect them with technical provisions to produce the product or service at every step of the product or service manufacture process.
In order to find solutions to any problem from making products, steps that generate alternatives, evaluate, and improve the details. From all these steps, it can be concluded that the product can be made with the right attributes and cost.

Result and Discussion
The results of this product design are efficient, effective, ergonomic and affordable lawn mowers that farmers can use to cut weeds on their farms. The design problems contained in the design of this lawn mower include cutting tool material, the maximum length of cutting tools, blade material, the length of the blade, the number of blades, the cutting toolmaker, the cutting tool colour, the handle material of the cutting tool, the length of the handle of the cutting tool , as well as fuel tools.

Classification of Objectives & Functions, Determination of Needs
To find the solution of the above problems, there are 3 steps needed so that the problem will be divided into sub-issues, namely the classification of purpose & function, and  Determining the level of the main generalities: a. product has a comfortable and ergonomic design. b. product has a long life /endurance.

House of Quality
In this section, the sub-problem of the multifunction slicing tool specification will be found sub solution with steps from designing Nigel Cross, to determine the characteristics of the product. House of Quality multifunctional slicer tool can be seen in Figure    Degrees of Interest: all technical characteristics are important except for the duration of the assembly and the length of the measurement is quite important.

5.
Estimated Cost: all technical characteristics are cheap except the composition of the product.

Sub Solution
Sub solution comes from solving any problems that occur, including the selection of attributes for multifunctional slicing tools carried out with the use of measures Nigel Cross, while maintaining the advantages it already has and improving the quality of the product. In this section, there are 3 steps done to sub solutions into solutions, namely alternative generation, alternative evaluation, and communication (improving details). Here are the conclusions of the three steps in the process of designing the birds repellent:

Alternative Generation
Some design solutions are applied as an alternative choice of orange-drawer and find solutions using the Morphological Chart. Morphological Chart is presented in the form of a 10 x 3 matrix in which 10 is a function to be completed and 3 is a possible alternative. The combination of bird repellent design solutions can be seen in Table 1.below this.

Alternative Evaluation
Evaluation is conducted with the aim of comparing utility values of alternative tool designs created or made on the basis of performance on the basis of weighting purposes. In doing so, first a list of objectives is made of product design, then determines the ranking of all alternatives with the Pair Wise Comparison and AHP scale. The result of the relative weights of each attribute on the other attributes can be seen in Figure  3 below this  After that, determine the performance parameters of each attribute. Performance parameters can be seen in Table 2.below this.
. Then calculate and compare the relative weight value of each attribute for each alternative.
The relative weight value of each attribute can be seen in Table 3.below this

Solution
Value engineering is the final stages of the design process aimed at increasing the value of the product for the consumer and reducing the cost to be incurred by the manufacturer. The steps are to list the product components and identify the function of each component, determine the value of the dominant function, calculate the cost of each component, find ways to lower costs without reducing its value, and finally evaluate the alternatives. The cost required to make a multifunctional slicer is Rp160, 000.00.

Conclusion
Conclusion that can be drawn from the design of the bird's repellent device is: 1. This multifunctional slicer is made with a square with the base material using teak and aluminium blade type, the thickness of the feed from 0, 1-0.01 mm, type of knife there are 2 types of blade length 10cm, and colour of wood brown tool 2. For the attributes of the multifunctional slicer can be divided into 2 parts. The primary attribute of a multifunction slicer product is additional design and functionality. Design attributes are divided into secondary attributes i.e. tool shape, tool material, tool colour, knife material, propeller diameter, multiple levers, tool height, drive, and feed thickness. Additional function attributes are additional functional materials. 3. For QFD it is found that all the characteristics of the technique are easy to do. 4. Based on engineering step, it is found that from the alternatives there is the best alternative with total cost IDR 160.000,00.