LabRadar Recoil Trigger

prusaprinters

<p>This is a recoil trigger for the LabRadar chronograph. &nbsp;My box is designed to house a vibration sensor, magnets, and a 3.5mm cord. &nbsp;The magnets allow the box to stick to metal and also keep the box closed eliminating the need for glue. &nbsp;It works perfectly, no more missing triggers on the radar and you don't have to keep the radar close to the muzzle. &nbsp;You can read all about the sensors and how they work with the radar by Google searching.</p><p>I printed with PETG, 0.15 layer height, 15% infill, no supports.</p><p><strong>Parts</strong></p><ul><li>3d-printed housing</li><li>High sensitivity vibration sensor. &nbsp;I used this one: &nbsp;https://www.amazon.com/dp/B07S9KR84S?psc=1&amp;ref=ppx_yo2ov_dt_b_product_details</li><li>8 magnets 8x3x3mm (optional)</li><li>3.5mm audio cable. &nbsp;Must be the 3-pole type.</li><li>Epoxy or silicone.</li></ul><p><strong>Assembly</strong></p><ol><li>Insert the vibration sensor into the molded holder in the housing.</li><li>Carefully spread the sensor wires apart.</li><li>Insert your prepared 3.5mm cord and solder to the sensor. &nbsp;The tip and screen poles (the outer most sections of the plug) go to the sensor wires. &nbsp;The sensor is just a contact switch so it doesn't matter which wires on the sensor you solder to. &nbsp;Just keep them separate.</li><li>Epoxy or silicone to secure the wires and prevent any movement.</li><li>Let epoxy dry, insert magnets if you want them, and close the housing. &nbsp;Glue the box together if you wish.</li></ol><p><strong>Usage</strong></p><ol><li>It's best to plug the trigger into the Labradar before turning the unit on.</li><li>Set the trigger source to ‘Trigger’ and the trigger level to ‘1’.</li><li>Arm the radar and give the sensor a tap with your finger. &nbsp;You should see the radar trigger and display a non-acquisition error. &nbsp;Congratulations, it's working!</li><li>You can change the trigger level for less sensitivity.</li></ol>