Beer Tower for 3 taps

As a homebrewer I quickly switched from bottles to corny kegs. For a long time I was pouring beer in the cellar, where I had the corny kegs in a fridge and the faucet mounted in the fridge door. For practical reasons and laziness I decided to move the tap to the kitchen. I had space for a small fridge that fits two large and one small keg: 2 × 19 liters and 1 × 12 liters. So I designed my own three-tap beer tower so I could pour from all three kegs at will. I designed the height so the tower wouldn’t take up unnecessary space, but still allow a standard half-liter glass and other glasses, including a drip tray, to fit underneath without any trouble. The tower is sufficiently robust, the head is open at the back, and the hookup is simple: Inside the fridge I drilled a hole with a 29 mm hole saw. The bulkhead passthrough has three openings for three 9.5 mm beer lines. The hole diameter in the passthrough model is 10 mm, but PLA shrinks slightly as it cools. I printed all three parts of t