If you’re on a budget and still want high-quality machining, I’d check out RpProto. They offer aluminum CNC machining with a focus on precision and affordability. I’ve used them before for some custom prototype parts, and I was impressed with the quality and accuracy.

RpProto has experience with a range of materials, but aluminum is a specialty. They’re also pretty fast—one of the best turnarounds I’ve seen. And they were flexible with pricing based on my project’s volume. Here’s their website link (https://www.rpproto.com/services/aluminum-cnc-machining) if you want to check them out.