Elegoo Neptune 4, 4 Pro, 4 Max Gantry 8mm Lead Screw Support Block

An aid in straightening a bent lead screw while mounted in the gantry.
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updated March 9, 2024

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I received a Elegoo 4 Max that had bent lead screws. I took one out and tried to straighten it, but my setup didn't allow enough play to reshape a lead screw that has so much flexibility. 

I created this block to fit around the lead screw to support it past the bend on one end and then use the lead screw nut in the gantry on the other side of the bend. By applying force on the high area and pushing it past the point where its straight and letting it spring back,  it helps bring the screw back to it's original shape. It takes time and patience, but you can get it very close.

This fits on the Neptune 4, 4 Pro and 4 Max for sure. It may fit others as well. I've included the Fusion 360 file so you can alter it to fit your needs.

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