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Circuit construction
Published in Mike Tooley, Electronic Circuits, 2019
Many of today’s electronic devices are susceptible to damage from electric fields and stray static charges. Unfortunately, simply earthing the tip of a soldering iron is not sufficient to completely eliminate static damage and additional precautions may be required to avoid any risks of electro-static damage (ESD). These may involve using a low-voltage supply to feed the heating element fitted in the soldering iron, incorporating low-zero-voltage switching, and the use of conductive (antistatic) materials in the construction of the soldering iron body and the soldering station itself.
Working Safely and Effectively in Engineering
Published in Mike Tooley, BTEC First Engineering, 2010
Many of today’s electronic devices are susceptible to damage from electric fields and stray static charges. Unfortunately, simply earthing the tip of a soldering iron is not sufficient to completely eliminate static damage and additional precautions may be required to avoid any risks of electro-static damage. These may involve using a low-voltage supply to feed the heating element fitted in the soldering iron, incorporating low/zero-voltage switching, and the use of conductive (antistatic) materials in the construction of the soldering iron body and the soldering station itself.
Machines
Published in Daniel H. Nichols, Physics for Technology, 2019
An automated soldering station consists of a soldering iron that is translated back and forth on a threaded shaft. The pitch of the threads is 0.05 in. and at the end of the shaft is a handle of radius 1.0 in. and is driven by a motor. If it takes 1.5 lb of force to translate the iron back and forth, how much force does the motor deliver to the shaft? Assume an efficiency of 0.9.
Experimental methodology and results for heat gains from various office equipment (ASHRAE RP-1742)
Published in Science and Technology for the Built Environment, 2018
Omer Sarfraz, Christian K. Bach
Comparison of the updated equipment peak heat gain values with the previous ASHRAE handbook (2013) values show that the heat gain values for the current office equipment is different from the previous handbook values. Average equipment peak heat gain is reduced for most of the equipment, in part due to improved power management capabilities. However, power consumption was found to be greater for some equipment, including laptops and computers due to the increased equipment usage and computing capabilities. This study also includes measurement of miscellaneous equipment, including thermal binding machine, projector, soldering station, battery and cell phone charger, tea kettle, ice maker, and touch screen computer being new types of equipment that were not included in previous ASHRAE handbook revisions.
Ergonomic interventions for prevention of work-related musculoskeletal disorders in a small manufacturing assembly line
Published in International Journal of Occupational Safety and Ergonomics, 2019
In order to suggest an optimal workplace, workstations were redesigned by considering workers’ body sizes and postures using a human modeling tool, SAFEWORK® (developed by Safework, Canada). This tool generates boundary manikins using anthropometric data and analyzes lifting and push/pull/carry using a NIOSH lifting equation and guidelines provided by Snook and Ciriello [10,28,29]. The IMTV line was designed such that it could work in both standing and sitting postures, and thus a revised workspace modeled by SAFEWORK® was also designed that could work in both standing and sitting postures. In order to redesign a workplace, boundary manikins (95th and 5th percentile stature Korean female manikins) were generated. Boundary manikins are representative of 90% of female workers with the exception of those who exceed the top and bottom 5% of the population. The hip point was designated as the center point to include appropriate postures for both the tall female manikin and the short female manikin. Consequently, a footstool was proposed for a short female worker. A value of the buttock relative to the popliteal length (sitting) of the short female manikin was required for seat depth, and a value of the hip breadth (sitting) of the tall female manikin was required for seat width. In the case of simple/light assembly stations (e.g., gear, plate and spring stations), the value of worktable height was designed based on the elbow height of the tall female worker, and the height of the precision workstation (e.g., soldering station) was designed as 5 cm higher than that of the simple assembly station [30]. The footrest was modeled for both the tall female manikin and the short female manikin. Subsequently, a posture analysis was performed for the assembly and soldering stations, and a vision analysis was performed for the test stations. A manual lifting analysis was also performed for the packing station to check whether the weight and distance were appropriate to prevent lower back pain, which constitutes one of the costliest occupational health problems [31].
Do makerspaces represent scalable production models of community-based redistributed manufacturing?
Published in Production Planning & Control, 2019
Patrick A. Hennelly, Jagjit Singh Srai, Gary Graham, Royston Meriton, Mukesh Kumar
The FIX facility is equipped with a soldering station, 3DP, vinyl cutter with dedicated computer, mechanical tools, woodworking tools, drill press 4′×8′ CNC router (for wood and plastic) with dedicated computer, power tools such as saw, drills, angle grinder and belt grinder.