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Bug: "Fit" algorithm ignores Cut off value

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The code that determines whether an object will fit for printing seems to ignore the "cut off bottom" value.

I am trying to print an object that is 210mm high on an UM2, which has 205mm as maximum height. I can cut of whatever I want from the bottom, it still shows as non-printable. It's not exceeding maximum directions in either X or Y.


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Thats the danger of cnc machines and 3d printers. if you give them instructions they will perform them even if they cant. Thats why you need to be vigilant about it. But if you know you cut off 5 mm then you should be fine.

I cheat the granty height all the time when one piece (the last one being printed) is taller than the normal value.

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Anyhow... just printed the piece at full height (210mm) and I had about a cm of Z to spare.


Makes perfect sense. The early UM2s had a 10mm longer print head then the newer UM2s. And Cura is setup so both version work safely.

So yes, you have 10mm MORE Z space then advertised.


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dirkdirk... Measure it :) That's what I did to make sure the piece would fit! :)

From the bottom of the nozzle onto the buildplate at its lowest. Just make sure to have some spare room as - at the end of the print - the plate will always rise about 1cm and go back down before it homes apparently.


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