This study is aimed at maintenance for drawing instruments with rofessionals, and educational improvement for drawing rooms. Some damaged drawing instruments have been found in the drafting room, such as right-angled imprecision, defective rulers and so on. These are obstacles against drawing or drafting activities in class. Maintenance for drawing instruments has not been conducted by a professional. In the project, we decided to deploy maintenance by a professional thereby avoiding the huge cost of a renewal system and aim at improvement of educational urroundings.