Use a faceting machine

Formats and tools

Unit Description
Reconstruct the unit from the xml and display it as an HTML page.
Assessment Tool
an assessor resource that builds a framework for writing an assessment tool
Assessment Template
generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
Assessment Matrix
a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
Wiki Markup
mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
Evidence Guide
create an evidence guide for workplace assessment and RPL applicants
Competency Mapping Template
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
Observation Checklist
create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)

Self Assessment Survey
A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
Moodle Outcomes
Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
Registered Training Organisations
Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver CUVOPA403A, 'Use a faceting machine'.
Google Links
links to google searches, with filtering in place to maximise the usefulness of the returned results
Books
Reference books for 'Use a faceting machine' on fishpond.com.au. This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to ntisthis.com for every purchase, so go nuts :)


Elements and Performance Criteria

1. Set up faceting equipment

1.1 Set up faceting machines to manufacturers’ specifications identifying machine components and laps

1.2 Complete manufacturers’ maintenance checklist

1.3 Investigate index wheels for quill and identify main and critical angles for opal

2. Select, pre-shape and dop selected opal piece

2.1 Select piece of opal suitable for faceting

2.2 Pre-shape using faceting machine or bench grinder to establish crown and pavilion

2.3 Dop stone and work on pavilion first

3. Grind, sand and polish pavilion

3.1 Place dopped stone in quill and align to create girdle

3.2 Grind girdle to desired shape on medium to fine lap

3.3 Grind main facets at main angle on medium to fine lap

3.4 Grind girdle break facets at girdle break angle on fine lap

3.5 Grind culet facets at culet angle on fine or pre-polish lap

3.6 Fine lap, pre-polish and polish all pavilion facets including girdle

4. Transfer stone

4.1 Transfer stone to suitable dop

4.2 Remove crown dop and place new dop and stone in faceting quill

5. Grind, pre-polish and polish crown

5.1 Place girdle facet on lap at 90º, index setting 64 or 96 and lock quill

5.2 Grind girdle break facets at break angle establishing girdle thickness, on a medium to fine lap

5.3 Grind main facets at main angle on fine lap

5.4 Cut table facet on fine lap, to 40% of total width of stone

5.5 Pre-polish all crown facets

5.6 Grind star facets using pre-polish lap

5.7 Polish all facets

5.8 Remove stone from dop and clean