Hi all, I am new to 3d printing and I have just bought a Monoprice IIIP printer(yeah amazon prime day). I downloaded my first print from Thingiverse and it worked perfectly. A nerf gun scope, https://www.thingiverse.com/thing:2971542

After than I have downloaded countless amounts of things and every single one of them has failed. Other scopes, gun parts, skulls, baby groots, etc. Most of them just come off the bed and don’t have a good base or the printer wants to print in mid air and just spits out the goo.

Does anyone have any idea what is happening? I just reprinted that first scope and it works perfectly so there must be something really odd. I am using Cura and MatterControl and my setting are pretty similar for each print at 210 deg and 60 for platform with PLA.

Any help would be much appreciated as if I can only print the same item over and over then this 3d printer needs to go back!

Thanks!