vcaceresa

hi, thank for your time and guide me in this problem, i will check all this point......

hi everybody, i tried different way to resolve my problem but i can not fix it, i want to print a regular panel / fence made with pipe 4.50mm in solidworks, when it is slice by cura, the top and bottom pipe are open and filling with support, i want to print a 100% regular size, when i tried to 75% size, the problem is fix, or when a slice in angle, fix temporally, but i would like to print flat. please if anybody can tell me what i am doing wrong. thank you for any help i am attach the file a_panel.stl and the size of my printer is 300 x 300 x 350 a_panel.STL