If you're trying to get a component within a specific budget, consistently getting quotes that are just too high is going to cause you problems. Here are a few tips on how to optimise your design and get your component in budget.
Article
Is the cost of your machined components increasing?
17 Feb 2022
If you outsource CNC machining, you are probably seeing component prices rise. For buyers that are focussed on getting best value for money, an environment where prices are rocketing can make your job very hard indeed.
External Link
Erik Karl Henriksen: Jig and Fixture Design Manual