How to blend tube intersection

sean_trainor1988

So i've recently got myself an Ender 3 and I though it'd be a good exercise to try and replace a connector used for a small marquee.

Here's what i've got so far https://cad.onshape.com/documents/b4a5f33f86870770968039da/w/090cf0dd1cb96a312af51725/e/5a48876a1a62859f23113984

I'm near ready to print off a sample and see how it compares to an original but I can't figure out how to blend the radii at the point where the four tubes meet. See image below for reference of what i'm trying to achieve.

james_bonney

My first recommendation is that the vertices of sketch 1 and sketch 2 should be indecent. These sketches drive the paths of your sweeps. If you want your tubular sections to meet at the same point, the sketches guiding them will need to inform them to do so.