Ball / Connector For Theroflex Den / Fort Building Kit

My son got given this for Christmas and we wanted more pieces for it. So I made one. It's not a ball for ease printing and it doesn't have quite as many connection angle options but it works great. It's 3.5cm high like the original and it works with poles that have an external diameter of 5.4mm like the stock ones. If it's too tight/loose - just increase/decrease your flow or scale slightly.

https://theroflex.com/collections/frontpage/products/kids-fort

No supports or brim needed. It seems just as strong as the original but heavier as its not just a shell. I wanted them to last and used 3 shells and 20% infill, but I'm sure you get away with less. The weak point is the poles really. He's already snapped one so next I need to see where I can buy cheap 5.4mm OD plastic pipes!