Electric Wheelchair With Joystick Joysticks In power wheelchairs can significantly increase the user's independence and make it easier to use. However, standardized joysticks can be incompatible with the individualized features of hand disorders. This study examined the efficacy and satisfaction of customized power wheelchair joysticks made using 3D printing technology. http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1676496