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Evidence Guide: MEM19063 - Use a faceting machine

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM19063 - Use a faceting machine

What evidence can you provide to prove your understanding of each of the following citeria?

Determine job requirements

  1. Follow standard operating procedures (SOPs)
  2. Comply with work health and safety (WHS) requirements at all times
  3. Identify job requirements from specifications
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify job requirements from specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare to use faceting machine

  1. Set up faceting machines to manufacturer’s specifications identifying machine components and laps
  2. Complete manufacturer’s maintenance checklist
  3. Investigate index wheels for quill and identify main and critical angles for gemstones
  4. Select piece of gemstone suitable for faceting according to a chosen design pattern
  5. Pre-form using faceting machine or diamond wheels to establish rough shape of the gemstone
  6. Dop stone, using the appropriate adhesive for gemstone material
Set up faceting machines to manufacturer’s specifications identifying machine components and laps

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete manufacturer’s maintenance checklist

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Investigate index wheels for quill and identify main and critical angles for gemstones

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select piece of gemstone suitable for faceting according to a chosen design pattern

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pre-form using faceting machine or diamond wheels to establish rough shape of the gemstone

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dop stone, using the appropriate adhesive for gemstone material

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind and polish pavilion

  1. Place dopped stone in quill and cut pavilion to a centre point
  2. Grind girdle to according to pattern instructions
  3. Grind main, girdle break and cutlet facets following pattern instructions
  4. Pre-polish and polish all pavilion facets including girdle
  5. Transfer stone to suitable dop
  6. Remove crown dop and place new dop and stone in faceting quill
Place dopped stone in quill and cut pavilion to a centre point

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind girdle to according to pattern instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind main, girdle break and cutlet facets following pattern instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pre-polish and polish all pavilion facets including girdle

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Transfer stone to suitable dop

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind, pre-polish and polish crown

  1. Place girdle facet on lap at a 90-degree angle, main index setting
  2. Grind girdle break, main and table facets to meet job requirements
  3. Pre-polish and polish all facets and crown facets
  4. Remove stone from dop and clean with appropriate chemical agents
Place girdle facet on lap at a 90-degree angle, main index setting

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind girdle break, main and table facets to meet job requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pre-polish and polish all facets and crown facets

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove stone from dop and clean with appropriate chemical agents

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge