Answers · Updated 2026-10-31
How do I quote machining customer-supplied castings or forgings?
Price one of your own parts: Drop a STEP model or PDF drawing — about 90 seconds, no account.
Your part priced in about 90 seconds, no account.
Add incoming inspection, datum and stock variation risk, first-operation allowance, and an explicit rule for bad blanks or rework.
See how QuotedPart connects to your workflow with its API, MCP server, autonomous quoting and shop-specific learning.
The direct answer
For 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining. State whether a bad blank is scrapped, reworked, or returned.
Test the decision against the shop evidence in this example: For 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining.
Carry the measurable input from the worked case into the estimator's notes: For 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining.
Evidence from a shop floor
Ten supplied castings with $95 inspection, $330 workholding/setup, $348.33 machining, $125 deburr/inspect, and $71 scrap allowance total $969.33 direct; at 25% markup the lot is $1,211.66. Run a pilot and convert to a repeat route only after actual yield and variation are known.
Keep the commercial decision tied to the evidence, including for 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining.
The handoff is complete only when the owner can restate the route without losing for 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining.
Build the quote route
Confirm casting revision, foundry records, stock allowance, datum strategy, inspection sample, rework authority, and replacement responsibility.
A useful review question is whether the current RFQ still matches this route: confirm casting revision, foundry records, stock allowance, datum strategy, inspection sample, rework authority, and replacement responsibility.
The next estimator should be able to challenge the assumption behind this route: confirm casting revision, foundry records, stock allowance, datum strategy, inspection sample, rework authority, and replacement responsibility.
Use the source notes to date the assumption and record why this route was selected: confirm casting revision, foundry records, stock allowance, datum strategy, inspection sample, rework authority, and replacement responsibility.
Release and learn
Castings and forgings vary by lot; a perfect CAM estimate does not remove blank risk.
If the buyer asks for a different outcome, explain the boundary in these terms: castings and forgings vary by lot; a perfect cam estimate does not remove blank risk.
Before changing the total, verify whether the caveat applies: castings and forgings vary by lot; a perfect cam estimate does not remove blank risk.
A customer-facing explanation should make the risk legible: castings and forgings vary by lot; a perfect cam estimate does not remove blank risk.
Close the loop by noting the evidence that would make this estimate obsolete: castings and forgings vary by lot; a perfect cam estimate does not remove blank risk.
Keep the commercial decision tied to the evidence, including for 20 castings, price receiving inspection and a 10% allowance for clean-up review separately from machining.
Price one of your own parts
Drop a PDF drawing or a STEP file. QuotedPart reads the print, measures the model and prices it in seconds, on default shop rates you can change.
Your STEP file or PDF drawingDrop a PDF drawing, a STEP file or both
Free. No account, no email. Priced at our default US rates until you set yours.
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Can I ship 10% more or fewer parts than ordered?
Only when the purchase order or customer has agreed a quantity tolerance; there is no universal right to ship ten percent extra or short.
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Can I use Xometry or Protolabs instant quotes as a price check?
Use an instant quote as a dated comparison point after matching quantity, revision, finish, inspection, freight, and delivery scope; it is not a neutral market index.
Answers
Customer sent a STEP file but no drawing — what tolerance do I quote?
Use a written model-only default only when the customer accepts it; a practical example is to model with ±0.005 inch unless a drawing states otherwise, while calling out material, finish, threads, and inspection as open.
Answers
Customers make us re-enter quotes in their supplier portals — how do other shops handle it?
Treat portal re-entry as measurable quote administration: export the approved quote, time the work, and decide whether the effort is included or charged.