Simply Auto bed with Capacitive proximity AND ONLY a 12V relay
Description
Looking On The Web I Have Only Found Auto Bed Solutions With The Use Of Some Resistors To Low The Output Voltage Of The Sensors, Or With The Use Of A Optcoupler. Bu I Have Though "Can I Use The Output Of The Proximity To Pilot A 12V Relay?" Well It Can Be Done. In The File There Is A Simple Diagram Too. The Sensor 12V Input Are The Same Of The Ramps. The Signale Out Of The Sensor Pilot A 12V Relay. The Com Pin Of The Relay Is The S Pin Of The Z Min, And The No Pin Of The Relay Is The "-" Pin Of The Z-Min. Yeah I Know That In My Printer There Is A Lot Of Spave Between The Sensor And The Hotend :D I Have To Change That Part. But It Works. With Just A Relay And The Sensor ;) Here You Can Find A Video Https://Www.Youtube.Com/Watch?V=Nrfidcojpvi And Here My Post On My Blog (Sorry Only Italian... You Can Use Google Translator ^^) Http://Www.Indiegearlab.Com/Autobed-Levelling-Ljc18A3-H-Zby-Semplice-E-Rapido/2358
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