Z-Axis LS and Support
Description
I Wanted A Better Z-Axis End Limit Switch Adjustment Mechanism And Really Didn'T Like The Acrylic Attachment Bracket Connecting The Z-Axis Threaded Rod To The X-Axis Cross Rail. The Entire Weight Of The Extruder, Fang Fan, And Cross Rail Hung On 2 Bolts That Tried To Break The Acrylic Part In Half. The Tevo Manual Shows The Brass Z-Axis Nut Above The Bracket, Leaving Everything Hanging On Those Four Little Bolts. It'S Just A Bad Design. And The Way You Must Fiddle With The Z-Axis Limit Switch Is Just Insane. So I Remixed [Karthickrobo'S](/Thing:2575260) Z-Axis Nut Mount To Include An Adjustment Wheel To Vastly Improve Your Ability To Fine Tune The Z-Axis End Stop Location. The Limit Switch Bracket Moves The Switch To The Correct Placement. The Plunger Is Spring Mounted So That Any Over-Travel Will Cause The Plunger To Move Up And Not Break The Bracket Or The Switch. It'S Not A Matter If The Carriage Will Not Stop. It'S A Matter Of When. Hopefully, When The Ls Fails Or The Z-Axis Servo Spins Too Far, Nothing Will Actually Break. Plus I Put The Threaded Nut Below The Bracket Instead Of Hanging It On Four Little Bolts. You Can Use Any Wheel You Like. I Softened Mine In Hot Water (160° F) And Pushed A Hex Nut Into It. The Spring Is From The Local Hardware Store And The Screws And Nuts Are Extras From The Original Build. Spinning The Wheel Moves The Screw Up Or Down, Giving A Lot Of Precision Adjustment (*/- 5Mm) Without Needing A Hex Wrench.
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