When new tools are admitted to Husqvarna production, the tools are measured in a changing of orders process. This measurement process uses a Zoller machine, and the steps required change depending on the type of tool holder. Because this task occurs infrequently, measurements have come out incorrectly and additional attempts are required at the procedure to procure a correct measurement. AR HMD devices are state-of-the-art technology that areincreasingly being used as an instructional tool for industrial applications. AR provides instructions by overlaying virtual elements over the real-world environment, including using text, images, animations, audio, and other techniques. New advancements in HMD hardware allows for recognition of the real-world environment, and therefore AR software can make decisions for the user.

This thesis presents an AR application using HoloLens 2 to provide instructions to Husqvarna operators when a new tool requires measurement. The AR HMD software uses visual cues and textual instructions to guide the user to complete the necessary steps properly. The software is designed to be used with operators of varying experience, allowing experienced users to select an expert mode. Image recognition is used to align the virtual elements to real-world objects used by the operator, as well as determining if specific tasks are completed successfully. Due to a lack of standardized guidelines for instructional AR development using HMDs, guidelines were formed during the prototyping phase of this project to help design future AR applications for industry. These guidelines can also be used to evaluate if instructional AR HMD software maximized the potential of HMD hardware, to better determine the performance of the software during field testing. The software provided to Husqvarna AB is evaluated using an open-ended questionnaire and NASA-TLX to determine the functionality using operators with various experience in the tool measuring procedure and AR HMDs. The user experience was positive, but the AR application failed to meet certain guidelines, which caused increase mental workload and effort from the participants.