15x15 mm connector vertical/horizontal for square round tubes aluminium profil

thingiverse

People rely on a straightforward approach when constructing square round tubes using DIY resources, as evidenced by a compact system with dimensions of 15x15mm. Internal dimensions for this project specifically measure 15.5 * 15.5mm in diameter. When assembling components together, M5 nuts prove highly functional and play an essential role within the process. Each nut's interior dimensions were considered during design phases. For those interested in printing DIY tubes from home, 3D print technology renders this endeavor easy to achieve. As far as structural support goes, designers suggest that an 0.8mm shell with a fill density of 25% provides sufficient framework stability. Notable weaknesses emerge when applying hollow aluminum profiles. To effectively secure the tube together, it is recommended that screws be tightened with moderate force.