Practical articles on CNC machining, materials, tolerances, inspection and procurement. Read the reasoning, compare the trade-offs, and bring the relevant details into your next drawing.
A useful cost discussion identifies which operation or requirement changes the price. Compare quotations on a common scope before negotiating the unit rate.
An approved prototype proves something about a particular part. Production release needs evidence that the defined process can repeatedly deliver the approved requirements.
A quotation becomes more useful when the model defines the shape, the drawing defines acceptance, and both files describe the same revision. The goal is to remove decisions that should not be guessed.