Self-positioning induction trigger for WeldingRodBot

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Update: I Uploaded A Universal Trigger That Friction Fits On The Induction Sensor Barrel. It Would Work With Any Printer That Has At Least The Lower Half Of The Induction Sensor Barrel Exposed. Http://Www.Thingiverse.Com/Thing:1523184 This Part Here Is Designed To Work Only On Weldingrodbot (Http://Www.Thingiverse.Com/Thing:981664), With An Induction Sensor Mounted In The Center Hole Of The Carriage. I Made This As A Sort Of Poor Man'S Bltouch. This Flexible Part Slides Onto The Bottom Of The Carriage, And Positions A Metal Trigger Beneath The Induction Sensor. This Allows An Almost** Fully Automated Mesh Bed Leveling Measurements. After The Measurements, I Slide The Tpu Part Off Of The Carriage And Can Use The Entire Bed Without Any Foil, Clips, Or Any Other Metal Triggers Left In The Way Of The Nozzle. This Part Let Me Save Some Time And Turn Off The Manual "Trigger" Behavior In Repetier Firmware -- I Was Previously Manually Positioning The Razor Blade On The Glass For Each Of The Measurement, And Waving A Tool Under The Sensor To Trigger It To Measure. This Took Up A Lot Of Time And Was Error Prone If I Let The Tool Linger Under The Sensor While Triggering It. **Important: If You Are Using The Fully Automated Auto-Leveling Behavior In Your Printer Firmware, You *Must* Remember To Attach This Trigger To The Carriage Before Taking Another Bed Level Measurement! Failure To Do So May Result In A Forcible Nozzle Crash, And Related Mechanical/Electrical Damage. The Part Will Become Slightly Warped With Usage On A Heated Bed, But Should Still Have Plenty Of Flex In It And Still Press The Trigger Down Firmly When Used. I Found That Semiflex Pla Was Not Flexible Enough, Didn'T Return To Shape, And Couldn'T Withstand A High Temperature Heated Bed Without Becoming Permanently Warped. Ymmv. Instructions: Print This Part Out In Tpu. Use Wire Cutters Or Scissors To Trim Any Excess Strings, And Also Trim The Part'S Upper Deck And Rail Slides To Fit The Lower Profile Of Your Weldingrodbot Carriage. Affix A Box Knife Razor Blade Or Other Piece Of Perfectly Flat, Thin Rigid Metal To The Bottom Of The Part, At The Location Beneath Where The Induction Sensor Is Triggered (I Used 3M Spray Adhesive). Ensure Your Bed Is Perfectly Clean With No Residual Crumbs Or Streaks Of Material. Perform Your Usual Bed Measurement Ritual. Remove The Trigger And Print As Usual. Files Designed In Qcad And Openscad. Video Of Trigger In Use: Https://Www.Youtube.Com/Watch?V=Hffmfnsvlvq Fun Fact: You Can See In My Photo And Video That My Own Printed Out Tpu Part Was Incomplete And Only Half-Printed Due To The Difficulty Of Printing In Tpu. This Was Still Enough For Me To Use, So I Didn'T Bother To Print The Full Object. You Might Consider Adjusting The Tpu Part Height For Your Needs Before Printing It Out.

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