Preliminary Design for Assembling and Manufacturing Sports Equipment: A Study Case on Aerobic Walker Zainal Arifin, Singgih D. Prasetyo, and Aditya R. Prabowo Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia Email: zainal_arifin@staff.uns.ac.id (Z.A.); singgihdwiprasetyo22@student.uns.ac.id (S.D.P.) aditya@ft.uns.ac.id (A.R.P.) Joung H. Cho Department of Industrial Design, Pukyong National University, Busan, South Korea Email: jhcho7@pknu.ac.kr Abstract—One way to increase the interest of the community in exercising is providing sport equipment which is integrated with the tourist site. One exercise tool that can be applied is aerobic walker type outdoor fitness equipment. Aerobic walker is a tool with the principle of static walking. This article discusses the planning of aerobic walker type outdoor fitness equipment products using the design for manufacturing and assembly (DFMA) method and calcifications using the house of quality (HOQ) methods in which the design is based on drawings, materials, analysis, and equipment production plans. The method used in this research is action research, numerical engineering and application of simulation using the Autodesk Fusion 360 application. The design of the tool can be used by two people with an average weight of 80 kg and operating with a maximum speed of 30 rpm. The design results are divided into 3 parts: the main frame, foot handle, and footrests made of carbon steel with 6010 bearing types. The safety value of the tool for safety factor and the tool bearing age factor are 15 and 12128.52 hours, respectively. Based on consumer needs with the house of quality method, the design of this tool has a value of 3.9 and is better than other fitness equipment (52 hours). Index Terms—preliminary design, assembly and manufacture reference, aerobic walker, DFMA, HOQ I. INTRODUCTION One of the shortcomings of tourism area promoting health awareness is the lack of awareness of people surroundings about exercise. This indicated by the lack of availability of sport facilities in that area. The majority of people are less interested in sports that are carried out in special places as a means of recreation. One of the ways to overcome this problem is by providing sports facilities Manuscript received July 8, 2020; revised January 3, 2021. Grant name: PNBP UNS Pengabdian Kepada Masyarakat (PkM) Grant no.: 453/UN27.21/PN/2020 that are integrated with tourist parks in order to attract the interest of the community in exercising [1-4]. One of sport facilities that can be used by all groups is outdoor fitness equipment, because it can be applied as a recreation for people who visit the tourist parks. That suitable fitness equipment is called aerobic walkers which have principle of static walking. Therefore, this equipment can encourage people to do physical activities that are easy, simple, and inexpensive. If this can work effectively, this physical activity can increase surrounding community health and reduce the chance to get disease. However, the use of an aerobic walker type outdoor fitness equipment requires proper planning and design so that the equipment can be used for a long time and can be used by everyone. The design is possibly adopted based on engineering design as previously conducted by Caesar et al. [5] and Ary et al. [6] which considered material and structure geometry in designing hardness tester facility and analyzing structural design of eco-vehicle chassis. Based on these problems, the authors are interested in planning an aerobic walker type outdoor fitness equipment product. Planning is conducted using the design for manufacture and assembly method. The plan is carried out based on drawings, materials, and components needed in the tool-making process. In addition, this investigation is complemented by a quality function deployment (QFD) process using the house of quality (HOQ) method [7-10]. II. DESIGN METHODOLOGY The research method used in this research is the Action Research (AR) method. Action research aims to improve the ways of practitioners in applying appropriate fields of science [8]. In addition, this study uses engineering methods based on the design activities. The design was made by using numerical methods and simulation using the Fusion 360 software. In general, the flowchart of this research is shown in Fig. 1. 107 International Journal of Mechanical Engineering and Robotics Research Vol. 10, No. 3, March 2021 © 2021 Int. J. Mech. Eng. Rob. Res doi: 10.18178/ijmerr.10.3.107-115