Hi Roy,

Dennis is correct. You'd need to print a z-axis offset (spacer) that you place on the z-axis bar behind the build platform.

Don't remove the stock aluminum plate when you want to use the glass plate. Instead, place the glass plate on top of the aluminum plate and simply secure it by using either paper clips (like in the photo you attached) or using tape on all four corners.

What the Z-axis spacer would do is hit the Z-axis sensors, which will stop the plate from rising further. This would provide enough clearance so the glass plate will not hit the nozzle.

Hope this helps!

Peter