When you require to tape the angle of something revolving, whether it’s a handle or a joint in a robot arm, outright rotating encoders are often the method to go. They’re affordable, they’re easily offered, and also it ends up you can make a pretty fantastic one out of a magnetic sensor, a zip tie, and a skateboard bearing.
When [Scott Bezek] obtained his hands on a AS5600 magnet sensing unit outbreak board, that’s simply what he did. The sensing unit itself is an IC positioned in the center of the board, which in Scott’s layout remains on a 3D-printed provider. A bearing place rests atop it, which holds– you thought it– a bearing. Particularly a basic 608 skateboard bearing, which is broken right into the place and also held firmly by a zip connection cinched around the place’s tabs. The last component is a 3D-printed handle with a small magnet ingrained within, vertical to the axis of turning. The handle glides right into the bearing and also the AS5600 checks out the positioning of the magnet.
Obviously, if you simply desired a rotating handle you might have simply bought an encoder and also been performed with it, however this approach has its benefits. Perhaps you can not fit a commercially-available encoder in your layout. Perhaps you require the super-smooth turning given by the bearing. Or perhaps you’re in fact developing that robot arm– customized magnetic encoders such as this one are exceptionally typical in actuator layout, and also while the extra commercial variations (typically) have less zip connections, [Scott]’s layout would certainly fit right in.