Inductive sensor aways OPEN

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gustavogoulart
The aluminum BED doesnt seem to have the same adherence as the glass did with the hairspray...

Welcome to 3D printing.

Don't use the plain aluminum for printing, put a sheet of glass on top.

But if I put the glass on top the sensor wont read the irregularities fo the glass, right? Unless I can find a 100% flat glass

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gustavogoulart
But if I put the glass on top the sensor wont read the irregularities fo the glass, right? Unless I can find a 100% flat glass

You won't find 100% flat glass. For how we use it and the size we use it though, float glass is flat enough. You'd have to adjust your offset to accommodate for the glass thickness, but the glass also makes for a harder surface that's more durable. It's also cheaper to replace if it gets damaged and you can swap out between prints faster.

The first time your hot end crashes into your nice shiny aluminum bed and gouges it, you'd wish you had a piece of glass on it. I have a nice piece of MIC6 plate that has the outline of the start of a print permanently embedded into it that I can show you...