we found a solution for the magnet, we decided to stick springs on the magnet. No problem with magnetism and it will rebound off the two sides. Today, we’re watching for the rectifier bridge but before doing it, we need to know what current will arrive from the solenoid, we need to check It. We took a multimeter and we watched the current in the solenoid.1.5 mA was measured after few movement. To be large, we decide to take 1A to the rectifier bridge