Terms of Sale
Last updated November 8, 2026These terms govern every quote, order and part from Curvilinear Components LLC, doing business as One Off Parts. Placing an order means you accept them.
1. Who we are, who you are
One Off Parts is a machine shop in San Clemente, California, operated by Curvilinear Components LLC (“we”, “us”). You are the person or company placing the order (“you”). Our parts are made for business and industrial use. If you order for a company, you confirm you are authorized to bind it to these terms.
2. Quotes
- A price shown on the site is computed from the model, drawing and options you provide. It is an offer to make the part as described; it becomes a contract when you place the order and we confirm it.
- Parts marked Approval required are reviewed by a person before the price is final. We may confirm the price, propose a different price or lead time, or decline the part. You are charged only if you accept.
- Parts we cannot price online are quoted by email (an RFQ). An emailed quote is valid for 30 days unless it says otherwise.
- If a price is wrong because of an obvious error (a misread drawing, a file that does not match its drawing, a unit mix-up), we may correct it before confirming and you may cancel at no charge.
- Saved quotes may be repriced when you return to them. Material and shop capacity change.
3. Orders and confirmation
- An order is placed when you click Place order. It is accepted when we confirm it, normally within one business day. Until we confirm, either of us can cancel without charge.
- We may decline any order, including for export-control reasons, capacity, or a part we are not confident we can make to the drawing. Anything you paid is refunded.
- Lead times are business days from confirmation and are estimates. We tell you the stage of each job on your orders page and by email. If we expect to miss a date, we tell you.
4. Price and payment
- Prices are in US dollars. Shipping and sales tax are shown at checkout and added to the order.
- Card orders are paid in full when placed. If we decline the order, or you cancel before we confirm it, the charge is refunded in full.
- Net 30. Approved accounts may be invoiced, due 30 days from the invoice date. Net 30 is not available on rush orders. We may withdraw Net 30 terms for late payment.
- Past-due amounts bear interest at 1.5% per month, or the highest rate permitted by law if lower, plus reasonable collection costs.
- Sales tax is charged by the delivery address unless we hold a valid resale or exemption certificate for you.
5. Your files, drawings and designs
- You keep every right in your models and drawings. You grant us a license to use them only to quote, make, inspect, ship and support your parts.
- You confirm you have the right to send us the files and to have the parts made, and that doing so infringes no one else’s patent, copyright, trade secret or other right. You will defend and indemnify us against claims that your design does.
- We keep your files as long as you have an account or an order needs them, so a reorder is a click; you may ask us to delete them. How they are protected is in section 11 and on the Privacy page.
- If a drawing and a model disagree, the drawing governs. If neither says, we make the part to the model.
6. What we make, and to what
- Unless your drawing says otherwise, we hold ±.005 in on dimensions and a 63 µin Ra finish on machined surfaces. Tighter call-outs on your drawing or chosen on the quote are held as stated; the price reflects them.
- Threads are cut to the call-out, class 2B/2A unless specified. Inserts are installed to the manufacturer’s specification.
- Material is per the grade you select or your drawing calls out. Material certifications are available on request at order time.
- Parts are deburred and cleaned. Sharp edges are broken unless the drawing says to leave them.
- Our interpretation of geometric tolerancing follows ASME Y14.5.
7. Changes and cancellation
- Before confirmation: cancel or change anything from your orders page, free.
- After confirmation: email us. We will stop work where we can. You owe the material, tooling and labor already spent, and we refund the rest. Parts already complete are yours and are shipped and billed.
- Parts are made to your design. They cannot be returned except under section 9.
8. Shipping, title and risk
- We ship from San Clemente, California by the service you chose, or we hold parts for pickup. Title and risk of loss pass to you when we hand the parts to the carrier. Shipping on your own carrier account is billed by the carrier to you.
- Shipping quotes are the carrier’s rates at the time of the order. Residential, remote and oversize surcharges the carrier adds later are passed through.
- Check the shipment on arrival. Report damage in transit to us within 5 business days so we can claim against the carrier.
9. Inspection, nonconforming parts and warranty
- Inspect your parts when they arrive. Tell us about any part that does not meet the drawing, the model or these terms within 15 business days of delivery, with the part number and what is wrong. Parts not reported in that time are accepted.
- For a nonconforming part, we will, at our choice, remake it, rework it, or refund its price and the shipping on it. We pay the shipping on the replacement. That is your exclusive remedy.
- We are not responsible for parts that fail because of your design, your material choice, your drawing, use beyond the design, or changes after delivery.
- EXCEPT AS STATED IN THIS SECTION, PARTS ARE PROVIDED WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
10. Limitation of liability
TO THE FULLEST EXTENT PERMITTED BY LAW, WE ARE NOT LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, LOST PRODUCTION, DOWNTIME OR THE COST OF SUBSTITUTE PARTS, ARISING FROM ANY ORDER, HOWEVER CAUSED. OUR TOTAL LIABILITY FOR ANY ORDER IS LIMITED TO THE AMOUNT YOU PAID FOR THAT ORDER.
Nothing in these terms limits liability that cannot be limited by law.
11. Confidentiality
We treat your files, drawings, quotes and orders as confidential and use them only to serve you. They are visible to your company’s users and to our staff, nobody else; every download is logged. A finishing vendor (an anodizer or plater) sees the parts, not the files, and is bound to the same confidentiality. We do not list your company or show your parts without your written permission. If you need a signed NDA, send it with your first order.
12. Export control
- We are not registered under the International Traffic in Arms Regulations (ITAR). We cannot receive, store, quote or manufacture from technical data that is described on the United States Munitions List or otherwise subject to the ITAR, or that carries a Distribution Statement other than A.
- Technical data subject to the Export Administration Regulations (EAR) is accepted, EAR99 and listed ECCNs alike. We are a U.S. company; your files are stored in the United States, opened only by U.S. persons, and not exported. We ship finished parts only to addresses in the United States unless we have agreed otherwise in writing, and we screen foreign shipments against the Consolidated Screening List. If a part is classified under an ECCN other than EAR99, you tell us the ECCN with the order; the classification is yours to make.
- You confirm that nothing you upload is ITAR technical data. Files that carry ITAR or related defense markings are rejected automatically, the uploaded copy is deleted, and the attempt is logged. If we learn after the fact that data was ITAR, we will delete it and may cancel the order; you are responsible for any consequence of having sent it.
13. Accounts
Keep your sign-in to yourself. You are responsible for orders placed from your account and by the users you add to your organization. Tell us at once if you believe someone else has used it. We may close an account that is used in breach of these terms.
14. Events beyond our control
We are not liable for delay or failure caused by events beyond our reasonable control, including supplier and material shortages, carrier failures, utility outages, fire, flood, earthquake, epidemic or government action. Lead times extend by the length of the delay; if the delay exceeds 30 days, either of us may cancel the affected order and we refund any amount paid for work not done.
15. Governing law and disputes
These terms are governed by the laws of the State of California, without regard to its conflict-of-law rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply. Any dispute will be brought in the state or federal courts in Orange County, California, and each of us consents to their jurisdiction. Before filing, each of us agrees to try to resolve the matter by direct discussion for at least 30 days.
16. The rest
- These terms, the quote and the order confirmation are the whole agreement for an order. Terms on your purchase order that add to or conflict with them do not apply unless we accept them in writing.
- If a part of these terms is unenforceable, the rest stands.
- We may update these terms. The version in force when you place an order applies to that order.
- Questions: [email protected], or write to Curvilinear Components LLC, 1023 Calle Sombra, Suite K, San Clemente, CA 92673.