HicTop Prusa i3 Auto Bed Leveling Sensor Mount
Description
This Is A Sliding Mount For The Auto Bed Leveling Sensor Type Sn04-N Used On Some Prusa I3 3D Printers. This Sliding Mount Is Much Easier To Adjust Than Fixed Mounts And Is Easy To Make From Commonly Available Screws. This Mount Can Be Adjusted By Very Small Amounts Making It Easier To Get Your Z Height Just Right For The Perfect First Layer. The Design Can Be Adapted To Other Printers By Doing A New Base Mount For The Base And Sliding Parts Which Stay The Same. To Assemble The Mount, You Will Need A 1.375" Long 4-40 Screw And A 4-40 Nut To Create The Lead Screw. The Mount Is Screwed To The Bearing Block Using 4Mm Cap Screws. The Sensor Is Screwed To The Sliding Portion Using The Original 3Mm Screws And Nuts. For Convenience I Added Another Members Sliding Portion Design For 12 And 18Mm Round Sensors. Http://Www.Thingiverse.Com/Thing:1354218 In The Files Section Of This Thing I Have Placed A Pdf Document Giving Details About How To Assemble And Install This Sliding Mount. I Designed This Sensor Mount Using Tinkercad. I Allowed Some Clearance Between The Slide And The Mount But Depending The Printer Used To Make The Part, That Clearance May Or May Not Be Enough. This Is Why I Suggest To You Sand The Part For A Perfect Fit. Here Is Access To The Part In Tinkercad So That You Can Look At It. Https://Www.Tinkercad.Com/Things/A8Xgnpfi4O6-30Mmslidingconnectorv3 Https://Www.Tinkercad.Com/Things/4Qajbcp2Ojp-30Mmslidingbasev3 Https://Www.Tinkercad.Com/Things/Acevqb3Ght9-30Mmslidebearing-Block-Mountv3 Update: Some People Are Finding That Their Sensors Are Not Reliable When Powered With 5V . I'Ve Attached A Circuit That I Use That Allows The Sensor To Be Powered With A Higher Voltage Such As 12 - 24 V And Lowers The Output Signal To 0-5 V For The Input To The Controller. It Uses A Blocking Diode. When The Sensor Output Is 12-24 V, The Diode Blocks The Voltage So That The Controller Input Is 5 V. When The Sensor Output Goes To 0 V, The Diode Conducts And The Controller Input Is Pulled To Nearly 0 V (Actually 0.7 V).
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