Important: Carefully review your engineering drawings before submitting an order. It is the customer’s responsibility to interpret and confirm all details on engineering drawings. Missing, unclear, or incomplete specifications may affect lead time, cost, and product quality.
General Instructions
- Thoroughly review all drawings, notes, and views for each part.
- Verify dimensions in both inches and millimeters where applicable.
- Ensure every tolerance, material, and finish is explicitly specified.
- Use magnification to check intricate features.
- Confirm that parts fit properly within assemblies.
- Confirm footnotes for any special processes (e.g., heat treat, welding, engraving, purchase items, or make-from components).
- Upload a STEP file (.stp / .step) in addition to the PDF drawing – this greatly increases accuracy, reduces CNC programming time, shortens lead time, and lowers costs.
- Remember: Re-ordered parts may vary slightly unless tolerances are specified.
- Unclear or incomplete drawings are the customer’s responsibility and may result in delays.
Per-Component Checklist
(Complete one “REQUEST A QUOTE” form for each machined component, even if included in the same PDF drawing.)
1. Basic Information
- Part Name / Number
- Quantity
- Material Specification (e.g., 6061-T6 Aluminum, 304 SS)
- Finish (e.g., Anodize, Powder Coat, Zinc Plate)
- Part Dimensions – confirm both inches and mm
- STEP File Uploaded (Yes/No)
2. Drawing Review
- Verify all dimensions and views (front, side, section, detail).
- Confirm tolerances – if not specified, general tolerances will apply.
- Check thread callouts (UNC, UNF, NPT, metric).
- Review hole sizes, locations, and depths.
- Confirm surface finish requirements.
- Ensure chamfers, radii, and edges are clearly defined.
- Verify flatness, concentricity, and parallelism if critical.
3. Description / Special Processes
- Purchase Items (bearings, fasteners, inserts, etc.)
- Make Froms (e.g., “Make from plate,” “Make from tube”)
- Heat Treatment (hardening, tempering, stress relief)
- Engraving (logos, serial numbers, part ID)
- Welding (specify weld type, location, and mating parts)
- Assembly Notes (list associated parts, ensure fit checks)
4. Final Verification
- Confirm that all specifications are complete (no assumptions).
- Verify that part quantities and revisions match your order.
- Ensure finishes and treatments are called out in notes.
- Confirm that critical-to-function dimensions are clearly identified.
- Resolve any ambiguous notes or conflicts before submission.
- Confirm STEP file is uploaded alongside PDF.
Reminder
- Accurate Machine & Tool manufactures to the exact information provided.
- Customers bear responsibility for ensuring drawing accuracy, completeness, and clarity.
- Submitting a STEP file with your drawing is the best way to:
- Reduce lead time
- Improve CNC programming accuracy
- Lower overall machining costs