Cuisinart Smart Stick Blender Adapter/Insert

I have a Cuisinart Smart Stick Two Speed Blender Chopper combo. The connection on the blender attachment was plastic and broke and fell out. So I pulled out the remaining pieces and modeled it and printed a replacement. The upper body wall is thin. It snaps into place easily enough, but good luck getting it out without breaking the tabs. I printed it bottom down, so the orientation of the print makes the tabs inherently weak. There's a little bit of play once it snaps in place. I could narrow the three slots and reduce this play, perhaps, but I've been using this v2 model for a year now with no problems.