Stop losing money on Machinist projects.
Send your first 3 change orders for free. When a client asks for a 'minor tweak' mid-production, you aren't just losing time; you're eating the cost of specialized tooling and expensive scrap. Stop letting 'one more pass' turn your profitable job into a charity project.
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Change Order
Ref: 2026-001 • Standard Business Template
Machinist Change Order Form
Project Name: ____________________
Original PO Number: ____________________
Change Order No: _________ (e.g., CO-001)
1. Description of Requested Change
Detailed description of the modification to the part, material, or process (Reference specific CAD Rev # or Drawing #):
- ____________________________________________________________
- ____________________________________________________________
2. Technical Impact Analysis
As a result of this change, the following adjustments to production are required:
- Material Adjustment: [ ] No Change [ ] New Stock Required [ ] Additional Scrap Expected
- Tooling Requirements: [ ] Standard Tooling [ ] Custom Tooling/Inserts Required
- Programming: [ ] CNC Re-programming required [ ] Setup adjustment required
3. Revised Schedule
Original Delivery Date: ____________________
New Estimated Delivery Date: ____________________
Note: All production is currently HELD until this document is signed.
4. Financial Adjustment
- Additional Machine Hours: ____ hrs @ $____/hr = $_________
- Re-programming/Engineering Fee: $_________
- Tooling/Material Surcharge: $_________
- Subtotal Increase for this CO: $_________
Original Contract Total: $_________
New Contract Total (Revised): $_________
5. Authorization
The undersigned agrees to the revised scope of work, pricing, and schedule as outlined above. No further work will proceed on the affected parts until this document is executed and the required deposit (if applicable) is paid.
Client Signature: ___________________________ Date: __________
Machinist/Shop Lead Signature: ___________________________ Date: __________
Tolerance Stack-up Liability
Changing one dimension mid-job can affect the entire assembly; without a signed change order, you may be held liable for parts that don't fit.
Tooling and Insert Depletion
Harder materials or more complex geometries wear out expensive carbide inserts faster than quoted; these costs must be passed on.
Unallocated Machine Time
A 'simple' change might add 5 minutes to a cycle time, which over a 1,000-part run, eats 83 hours of unbilled machine capacity.
What is a Machinist Change Order?
A Machinist Change Order is a formal document that records modifications to a machining project's original scope, such as design changes, material swaps, or tighter tolerances. It outlines the resulting price increases and schedule delays, requiring client approval before the shop continues work to ensure all additional labor and tooling are paid.
Built from real freelance projects
This template is based on real-world scenarios across freelance projects where unclear scope, missing payment terms, and revision creep led to lost revenue. It is designed to protect your time, define expectations, and ensure you get paid.
Why Machinists need a clear change order
In the machining world, precision is everything—and that includes your billing. A Machinist must use a Change Order because even the slightest modification to a CAD file or a request for a tighter tolerance can exponentially increase tool wear, cycle time, and the risk of scrap. Unlike general consulting, machining involves tangible overhead: electricity, coolant, inserts, and raw material stock. If a client switches from Aluminum 6061 to 304 Stainless mid-run, your feed rates drop and your tooling costs skyrocket. Without this document, you are legally and financially responsible for those extras. A Change Order creates a paper trail that links the new technical requirements to a new price point, ensuring you are compensated for the expertise and machine hours required to hit the new specs.
Real-world scenario
A boutique machine shop was halfway through a run of 200 aerospace-grade brackets when the client sent an 'updated' drawing. The new design added two chamfered holes and required a switch to a higher grade of titanium. Instead of simply adjusting the program, the shop owner sent a Change Order detailing the $4,500 increase for specialized cobalt drills, the slower spindle speeds, and the four-day delay to the production schedule. The client initially complained, but because the shop owner pointed to the original signed agreement, the client signed the Change Order. By the end of the week, the shop had covered its increased overhead and maintained a 30% profit margin, rather than losing thousands in labor and ruined tools.
🛡️ What this change order covers:
- ✓Revision Number and CAD File Reference
- ✓Detailed Adjustment of Machine Hours
- ✓Additional Material and Tooling Surcharges
- ✓Estimated Scrap/Waste Adjustments
- ✓Revised Project Completion Date
- ✓Total Cost Increase and Payment Terms
Best practices for Machinists
Reference Drawing Revisions
Always cite the specific version of the blueprint or CAD file (e.g., Rev B) to avoid confusion.
Calculate Setup Time
Include costs for tear-down and re-setup if the change requires different workholding or fixtures.
Legal Disclaimer: MicroFreelanceHub is a software workflow tool, not a law firm. The templates and information provided on this website are for general informational purposes only and do not constitute legal advice.
Frequently Asked Questions
Should I charge for the time spent quoting the change order?
Yes, for complex revisions, you should include a 'Technical Review Fee' to cover the engineering time spent evaluating the new specs and re-calculating the process.
What if the client demands I keep the original deadline despite the change?
The Change Order should include an 'Expedite Fee' line item. If they want the change without the delay, they must pay for the overtime or the displacement of other jobs.