Marking out for the manufacture and installation of marine outfitting components
Overview
This standard identifies the competences you need to prepare for and mark out wood and sheet metal materials and sections used in marine outfitting activities, in accordance with approved procedures. You will need to interpret the information contained in the drawings, instructions and specifications, in order to mark out the materials and components accurately and correctly. You will be required to select the required materials, appropriate marking out tools and equipment, based on the features to be marked out, the accuracy required and the information presented to you.
Marking out will be the preparation required for cutting, shaping and forming materials and sections and the onboard positioning of manufactured components, as appropriate to the application. This will include marking out workpiece datums, centre lines, profiles, angles and curved details, hole positions assembly positions and cutting lines, which will be followed when producing and installing the required components.
Materials to be marked out will include softwoods, hardwoods, manufactured board, ferrous or non-ferrous materials, which may be in sheet form, stock sections, part-manufactured components or sub-assemblies. Certain materials will require you to take the grain flow into account, to avoid later production process problems.
Your responsibilities will require you to comply with organisational policy and procedures for the marking-out activities undertaken and to report any problems with the materials, equipment or marking-out activities that you cannot resolve yourself, or that are outside your permitted authority, to the relevant people. You will be expected to work with a minimum of supervision, taking personal responsibility for your own actions and for the quality and accuracy of the work that you carry out.
Your underpinning knowledge will provide a good understanding of your work and will provide an informed approach to applying marking out procedures to marine outfitting activities. You will understand the marking out process and its application and will know about the materials as well as the care and use of tools, in adequate depth to provide a sound basis for carrying out the activities to the required specification.
You will understand the safety procedures required when using marking out equipment and mediums, and when performing the marking-out activities. You will be required to demonstrate safe working practices throughout and will understand the responsibilities you owe to yourself and others in the workplace.
Performance criteria
You must be able to:
- work safely at all times, complying with health and safety and other relevant regulations, directives and guidelines
- obtain and use the correct information for marking out
- obtain the appropriate marking out equipment and check that it is in a usable condition
- prepare suitable datum and marking out surfaces
- mark out using appropriate methods
- check that the marking out complies with the specification
- deal promptly and effectively with problems within your control and report those that cannot be solved
- complete relevant documentation in line with organisational procedures
Knowledge and Understanding
You need to know and understand:
- the specific safety precautions to be taken when marking out for the manufacture and installation of marine outfitting components and assemblies and with the tools and equipment that are used (including any specific statutory requirements, risk assessment procedures and relevant requirements of HASAWA, COSHH and Work Equipment Regulations)
- hazards associated with the marking out activities (such as marking out equipment used, lifting and handling sheet material, long lengths of materials, slivers/burrs on sheet materials) and how they can be minimised
the personal protective clothing and equipment (PPE) to be worn when carrying out the marking-out activities
the procedures to obtain the necessary drawings and job instructions
- how to extract information from engineering drawings and related specifications (to include symbols and conventions to appropriate BS or ISO standards), in relation to work undertaken
- how to carry out currency/issue checks of the specifications you are working with
- how to interpret first and third angle drawings, imperial and metric systems of measurement, workpiece reference points and system of tolerancing
- how to produce a three dimensional shape from the two dimensional information
- how to identify the materials that are to be used (to include size, shape, colour, grain structure)
- the common defects that occur in the materials to be used and the types of defect that would render the materials unfit for use
- the importance of colour matching and grain convention when using wood and wood-based materials
- how to prepare the materials in readiness for the marking out activities, in order to enhance clarity, accuracy and safety (such as visually checking for defects, preparing the materials, removing sharp corners and edges)
- the principles of marking out and the types of equipment used
- the use of marking out conventions when marking out the workpiece (including datums, centre lines, cutting guidelines, square and rectangular profiles, joints, circular and curved profiles, angles, holes which are linearly positioned, boxed and on pitch circles)
- how to select and establish suitable datums; the importance of ensuring that marking out is undertaken from the selected datums; and the possible effects of working from different datums
- the use of geometrical construction methods applied to marking out
- ways of laying out the marking-out shapes or patterns to maximise the use of materials
- methods of marking out large or long shapes, using chalk lines and laser equipment
- marking out and transferring information from templates and how to transfer information to the underside of the sheet
- setting and adjusting tools (such as squares, protractors, marking gauges)
- the process considerations to be taken into account when marking out for the installation of the outfitting components or assemblies (such as fixing a level line, creating working datums)
- how to set up and align the various components and the tools and equipment to be used (such as spirit levels, laser alignment and levelling equipment, water levels and plumb lines)
- the importance of using tools only for the purpose intended; the care that is required when using the equipment and tools; the proper way of preserving and storing tools and equipment between operations
- the need for clear lines and dimensional accuracy in marking out to specification and drawing requirements
- the problems that can occur in the marking out of outfitting components and how these can be avoided
- the recording documentation to be completed for the marking out activities undertaken and where appropriate, the importance of marking and identifying specific pieces of work in relation to the documentation
- the extent of your own responsibility and to whom you should report if you have problems that you cannot resolve
Scope/range
Scope Performance
Use marking out methods and techniques, including two of the following:
- direct marking, using instruments
- use of templates
- tracing/transfer methods
Mark out sheet or section materials on two wood-based materials from the following:
- hardwood
- softwood
- manufactured board
Plus two metallic materials from the following:
4. cold rolled mild steel
5. aluminium
6. lead
7. coated mild steel (primed, tinned or galvanised)
8. brass
9. titanium
10. stainless steel
11. copper
Identify and isolate any materials that have defects, to include all of the following types of defect:
- structural
- cosmetic
- dimensional
- distortion
Mark out for the manufacture and installation of six of the following types of marine outfitting components:
- bulkheads
- stowage racks
- toilet (head)/cubicles
- bunks
- helm consoles
- shower cubicles
- furniture units
- navigational consoles
- galley equipment
- door and door frame mouldings
- frames
- stores
- panels
- tanks/reservoirs
- pyrotechnic lockers
- work surfaces
- vent ducting/trunking
- sectional trunking
- top boxes
- guards
- protective covers/cladding
- kit lockers
- hoods
- other specific components
Use a range of marking out equipment, to include eight of the following:
- scriber
- rule or tape
- sliding bevel
- spirit level
- pencil
- straight edge
- marking gauge
- laser (where applicable)
- marking knife
- square
- dividers, compass or trammels
- water line
- punch
- protractor
- chalk, bluing or paint
- plumb line
Interpret drawings and mark out to the required dimensions seven of the following features:
- datum and centre lines
- circles
- assembly positional lines/alignment
- cutting detail (including allowances)
- curved profiles
- final unit dimensional sizes
- square/rectangular profiles
- joints
- access/penetration openings
- angles
- hole positions
Produce marked-out components/installations which meet all of the following:
- dimensionally accurate (to drawing or specification)
- uses recognised marking-out conventions
- datum faces/points are clearly marked and identified
- meets company/customer standards and codes of practice
- has clearly formed lines and profiles
- waste material is clearly identified
Scope Knowledge
Values
Behaviours
Behaviours:
You will be able to apply the appropriate behaviours required in the workplace to meet the job profile and overall company objectives, such as:
- strong work ethic
- positive attitude
- team player
- dependability
- responsibility
- honesty
- integrity
- motivation
- commitment