What caused the CNC machining cost is higher and how to avoid to get an economy design?

Choose on materials: Choosing soft and common materials for machining, the harder materials loss big point of the machine, machining time is longer, so cost is higher.

5 Tips in Design

1,The inner radius- The larger R angle will more easier to manufacture and will more cheaper

2,Hole depth-Deep hole or machine some deep place, it is easy lead to tool chatter. So other machining solutions need to be considered. It will add the cost. The best proportion between length and depth is 4:1

3,Tolerance-The dimension is more strict, the risk will be higher, then the price must be higher. Normally, for metal machining according to ISO 2768-F would be great.

4.Wallthickness- Too thin, it will add the machining more difficult. With higher risk. The cost should be higher.

5,Threads-The standard metric thread would be common. Othe special threads would be more difficult to tap and also the cost would be higher.

Control in production QTY-1 or 2 pcs prototypes would be cause the higher unit price. With larger qty in production, the unit price can be cheaper.