This is a case for QRP Labs' 20W Dummy Load. I took inspiration from PH2LB's case, but it's been completely modeled by myself.
If you happen to have exactly the same bolts I have this will be a perfect fit with everything completely flush! That's pretty unlikely though, so maybe check out @Lyndon_300997's case here. I didn't discover this until I had already completed and printed my design and was uploading it here. It's a much better design that doesn't require extremely specific hardware.
This case prints fine with no supports, but I did have to clean out the overhangs in the bolt holes a touch. I've included the Fusion file if you'd like to modify it to work with bolts you do have.
73, VA3VRL
The author marked this model as their own original creation.