Abstract
The paper presents a comparison of two methods of manufacturing utility objects made of plastics, applied to the emerging immediate need in the field of quick provision of personal protective equipment for medical services. The traditional processing method, which is injection molding (IM), and a modern rapid prototyping method, which is fused filament fabrication (FFF) 3D printing, were compared in terms of unit costs and production possibilities at various timeframes. The paper presents the effects of launching two production processes of protective helmets (face shields) using the example of real cases implemented ad hoc during the epidemic development. The implementation of the protective helmet production project based on polyamide-6 processing showed the real possibilities of quickly launching the rapid production of protective equipment with the aid of mold injection technology.
Highlights
To enable 3D printing of the protective helmet in household conditions, there was a requirement for the open-source design that could accommodate the most popular 3D printer bed sizes
3D printed pieces usually required some post-processing, namely sanding, as rough surfaces were often generated during printing, which was another issue of the user comfort and it extended the time of production
Due to the abovementioned dimensional limitations, the fused filament fabrication (FFF) design of the helmet body required a lot of elastic rubber band to accommodate the user head, which quickly resulted in a national shortage of this material, as it was needed to secure most of the simple design protective helmets or face shields
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. There are products in which the functionality the quality of produced objects, the significantly high process failure rate, or significantly itself becomes more important and constitutes the essence of the product, which means higher unit production time and cost when compared to mature production processes, the visual quality ceases to be of decisive importance In such cases, starting production such as injection molding. Especially in the event of an exceptional situation in a visual quality ceases to be of decisive importance In such cases, starting production can global pandemic, are faced with two requirements: they are needed in high volumes and be much faster and cheaper. Examples of such products are the components of protective in a short delivery time, and their main function is protection against deadly microorface shields.
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