Sink hole cap holder

I needed to replace the original cap holder, because it wasn't letting the water drain fast enough. It's design was a bit strange (a bolt was used to fix the cap to the holder) and on one of the sides it had a cap with diameter very close to the sink hole, thus the water couldn't drain. I believe this was to stop accidentally dropped items to go down the drain.
I don't need this, because the sink cap is already close enough to the sink hole, so this won't be an issue.

I designed the new holder by taking measurements of the original holder with my digital caliper and transferred them to SketchUp.

I redesigned the holder a bit and removed the holder cap, so that the water can easily flow in between the fins, I also made it longer so that no bolt was required to hold the cap. Now the cap is inserted into the holder and is laying on top of it.

I had one failed attempt, since this is my first try designing and printing something from scratch, I didn't know that the measurements in