Liampeffers

@GregValiant thank you just looking into these now and see how I get on. thank you for all your help it is very much appreciated, i will update with any progress.

@GregValiant just used the 3d builder program preloaded on windows? what software do you suggest? how do you know the model isn't watertight? and how would I repair? sorry i am EXTREMELY new to all of this. if I'm honest before now I've only really used a computer for office work. thank you for the replies and help. I'm sure this wont be the last🙈

Thank you Torgeir, will give that a go and see what happens.

im trying to print an object that I have designed myself and I am new to 3d printing and to design. when I build the project it all looks good then I load into cura and its fine but when I slice it I lose the corners of the cutout? what am I doing wrong 15 x 13 lagging .3mf