Someone at my work broke a tape gun. Rather than toss the remaining parts I went on a hunt for a replacement to print. Couldn't find anything on here or thingiverse but did find a model on the CAD program I use. It's a public model and there's no way to contact the people whom made it. All I know is that person's username is Transistor. Anyways, I printed it for the tape gun at work and it works great.
I ended up having to use an inner and outer brim to keep the edges down. Happy printing!