A quick CNC machining cost calculator for a ballpark, instant machining quote — no file to upload. Enter a stock size (or your part's rough bounding box), how much of that box is actually part versus air, quantity, and a shop rate, and it prices the batch using the same cost model as the rest of cncquoter. For a real quote from your actual part geometry, use the full STEP-file tool instead — it measures bounding box, volume, and surface area directly from the file rather than estimating them from a percentage.
| Line item | Low | High |
|---|---|---|
| Material (stock) | $0.97 | $1.61 |
| Roughing | $1.02 | $1.70 |
| Finishing | $0.72 | $1.20 |
| Setup (2 × 30 min, amortized) | $7.13 | $11.88 |
| Programming (amortized) | $3.98 | $6.63 |
| Margin (25%) | $3.45 | $5.75 |
| Per part | $17.26 | $28.77 |
Total for 10 pieces: $172.63 – $287.71.
This calculator prices a rectangular stock block, minus the percentage of it you say is actual part, using cncquoter's own cost model (material, roughing, finishing, setup, programming, margin — see how CNC machining cost is estimated for the full breakdown of each line). Surface area, which drives the finishing-time line, is approximated as the bounding box's own surface area — accurate for a plain block, an underestimate for a part with pockets, ribs, or a complex profile. The STEP-file tool replaces every one of these estimates with numbers measured from your actual part.
Ballpark / rough order of magnitude, like every number on this site — review before sending to a customer.