Engineering & Mechanical Design
Mechanical design and drafting support for new concepts, existing products, equipment, assemblies, and customer-specific projects. Services are scoped to the information supplied and the agreed deliverables.
Mechanical design services
- Concept development and design refinement.
- 3D part modeling and parametric CAD modeling.
- Mechanical assembly modeling and component layout.
- Design revisions and engineering change support.
- Fit, interface, clearance, and packaging review based on supplied requirements.
- Design alternatives and configuration comparisons.
- Design intent documentation and model organization.
- Basic design-for-manufacturability review focused on communicating practical design considerations, not performing production.
Drafting & engineering documentation
- 2D detail drawings and general arrangement drawings.
- Orthographic, section, detail, and isometric drawing views.
- Dimensions, notes, tolerances, and drawing annotations based on customer requirements.
- GD&T documentation where requirements and design authority are provided or agreed.
- Assembly drawings, exploded views, and bills of materials.
- Drawing cleanup, conversion, and revision updates.
- Legacy drawing recreation from supplied prints, sketches, or reference dimensions.
- Drawing packages for customer review, quotation, or release to the customer's chosen supplier.
Deliverables in the formats your project needs
Project compatibility depends on the software environment, licensing, file condition, and required deliverables. Specific formats are confirmed during project review.
Organize the technical information behind a quote
SIIINSEI can help customers organize the technical information needed to evaluate project scope, design effort, and anticipated costs. Estimating support is based on the information available and should be treated as an engineering estimate, not a guaranteed supplier quotation.
Request estimating support- Labor-hour estimates for defined drafting and design tasks.
- Engineering scope breakdowns and deliverable lists.
- Preliminary project cost worksheets based on customer-provided assumptions.
- Drawing and model review to identify missing information affecting a quote.
- Design revision impact assessments.
- Bill of materials organization and component identification.
- Supplier-quote package preparation and technical clarification support.
- Design alternatives intended to support cost and complexity discussions.
Estimating limitation: Material pricing, supplier pricing, lead times, and production costs are not guaranteed unless supported by current written supplier quotations. SIIINSEI does not represent itself as the manufacturer or production supplier.
CAD capacity without a full-time hire
Project-based or recurring engineering design support for small and mid-sized organizations that need additional CAD capacity, help clearing drawing backlogs, or focused design resources during busy periods.
Overflow drafting
Overflow drafting and drawing updates, plus short-term mechanical design assignments.
Dedicated hours
Dedicated hours for recurring CAD support, with remote design collaboration and review meetings.
Defined deliverables
Project-based deliverables with defined scope and revision limits, plus coordination between engineering, estimating, customers, and external suppliers.
Design deliverables catalog
Examples of engineering work SIIINSEI may document or model. These are not claims that SIIINSEI manufactures the physical products.
- Mechanical brackets, mounts, plates, spacers, and interface components (design and drawing services only).
- Equipment layouts, machine guarding concepts, and enclosure designs.
- Mechanical assemblies, subassemblies, and exploded-view documentation.
- Fixtures and tooling concepts (CAD design and documentation only).
- Carts, bins, pans, cradles, and material-handling equipment concepts (design documentation only).
- Architectural metalwork details and component drawings (design documentation only).
- Automotive components, accessory layouts, and mounting systems.
- Agricultural equipment components and mechanical assemblies.
- Product prototypes and 3D-printable models.
- Legacy drawing recreation, CAD conversion, and engineering change packages.
- BOMs, technical specifications, and supplier quote packages.
Send us your sketch, print, or model.
We will review what you have, identify any missing information, and provide a written quote that defines scope, deliverables, and revisions.