1-1/4" female into 1-1/2" male adapter for a sump pump

thingiverse

I created this as I couldn't find a 3D model to cover this scenario. I have a Ace hardware 4/10 HP sump pump for emergencies. Also, I have a 1-1/4" check valve from an older sump pump. However, I didn't have a way to merry the two. Also, I didn't want to try to buy more parts as I was trying to recycle. My 4/10 HP sump pump has an output of 1-1/2" so I took two different designs and combined them in Tinkercad. The 1-1/4" female allows me to the screw in the 1-1/4" check value without any additional modifications. 1-1/2" from: https://www.thingiverse.com/thing:4412148 (Gewindemuffe_1_5_Zoll.stl) 1-1/4" from: https://www.thingiverse.com/thing:4422637 I printed this in PLA+ at a 0.2 layer height with 15% infill on an Ender 3 with stock settings. I wasn't looking for 100% water tight solution as this part is going to be in the water. I do recommend that you print this in PETG, but the PLA+ was handy in an emergency. The 1-1/2" male side screws into pretty well with some friction/resistance (plastic vs. metal). 1-1/4" female screws in the same, but not as resistant (plastic vs. plastic). The connection doesn't have to 100% perfect as this is more or less for emergencies as the other side of the check valve goes into a garden hose output.