Shop Drawings, Estimating and CNC Fabrication
Shop drawings, estimating and CNC fabrication, followed through a fourth-year apprentice in a Cleveland sheet metal contractor on a hospital wing: from design drawings to shop drawings, drafting standards and duct symbols, coordination models and BIM, producing and approving shop drawing packages, quantity take-off, estimating labor hours, material, equipment, overhead and the bid, CNC plasma cutting and nesting, coil lines, spiral machines and automation, production planning and shop scheduling, quality control and fabrication tracking, and a capstone carrying a hospital ductwork job from bid to close-out.
SMW-420 12 lessons · 3 h 49 min ▶ Video lessons coming soon
Offered by HSM University · Sheet Metal
This is the American version of this course. See the Canadian version.
What you'll learn
- Explain how contract drawings become shop drawings, read submittal review stamps and use RFIs and submittal logs to move a sheet metal package to approval
- Read and produce sheet metal drawings using standard scales, symbols, fitting codes, layers, title blocks and revision control
- Describe federated coordination models, levels of development and clash types, and take part in coordination to reach a fabrication-ready model
- Assemble a shop drawing package with plans, sections, fitting tags, elevations, hanger layouts and accessories, and manage comments and revisions
- Perform a quantity take-off of rectangular and round duct, fittings, accessories and hangers, and check it against past jobs
- Estimate field and shop labor hours from labor units, productivity factors and crew rates with burden, and check the crew against the schedule
- Price material with yield and escalation, add equipment, job costs, contingency, overhead, profit and bonds, and manage bid-day quotations and contract terms
- Explain how CNC plasma tables cut and nest flat patterns, calculate nest yield and cut time, and operate a table safely
- Describe coil line, spiral and other automated equipment, calculate coil yield and throughput, and apply guarding, lockout and lean methods
- Plan shop production from field dates using releases, capacity, the bottleneck, takt time, sequencing rules and a simple critical path
- Apply inspection points, sampling, nonconformance control, leakage testing and fabrication tracking to keep quality and deliveries on target
- Carry a sheet metal job from bid through coordination, shop drawings, fabrication and close-out, and feed actual results back into estimating
Course content
12 lessons · 3 h 49 min total · final exam
- 1 From design drawings to shop drawings 21 min · quiz
- 2 Drafting standards and sheet metal symbols 19 min · quiz
- 3 Coordination models and BIM for sheet metal 19 min · quiz
- 4 Producing and approving shop drawings 19 min · quiz
- 5 Quantity take-off 18 min · quiz
- 6 Estimating labor 19 min · quiz
- 7 Estimating material, equipment and overhead 19 min · quiz
- 8 CNC plasma cutting 19 min · quiz
- 9 Coil lines and automation 19 min · quiz
- 10 Production planning and shop scheduling 19 min · quiz
- 11 Quality control and fabrication tracking 19 min · quiz
- 12 Capstone: the Eastgate Hospital bid and shop drawing package 19 min · quiz
- E Final exam 20 questions
Requirements
Recommended background. You can start any course at any time.
Description
Shop drawings, estimating and CNC fabrication, followed through a fourth-year apprentice in a Cleveland sheet metal contractor on a hospital wing: from design drawings to shop drawings, drafting standards and duct symbols, coordination models and BIM, producing and approving shop drawing packages, quantity take-off, estimating labor hours, material, equipment, overhead and the bid, CNC plasma cutting and nesting, coil lines, spiral machines and automation, production planning and shop scheduling, quality control and fabrication tracking, and a capstone carrying a hospital ductwork job from bid to close-out.