LESSON 1: DRAFTING TOOLS AND THEIR FUNCTIONS

> RULERS:

• Ruler: measures short distances

• French Curve: makes noncircular curves

• Flexicurve: makes irregular curves

• Protractor: measures angles, semicircular plastic sheet

• T-Square: makes straight horizontal lines/vertical lines/angular lines

• Triangle: makes lines at a fixed angle (either 30×60 or 45×45)

• Scale: converts dimensions to big or small proportions

• Pull-Push Rule: bendable tape measure, measures curved surfaces

> DRAWING/MARKING:

• Drawing pencil: to render sketches/shading (H is hardness, B is blackness, F is fineness. B grade is softest)

• Mechanical pencil: lead can be dispensed or extended

• Technical pen: has refillable ink, used for the final drawing

> ERASING:

• Eraser: removes drawing errors (Vinyl for polyester film)

• Erasing shield: template-like, covers parts of drawing that should not be erased

> TRACING PAPER: used to transfer and copy drawings through tracing

• Vellum: better redraw quality, durable

• Polyester Film: excellent archival quality, can withstand revisions

• Grid Paper: has grid marks, used as a guide for sketching

> SUPPORT:

• Parallel Straightedge: provides support for the triangle

• Compass: draws arcs and circles (drop-bow, center wheel bow, beam)

• Template: thin sheet punched with various shapes

• Dusting brush: removes dirt and eraser residue without smudging drawing

• Divider: transfers measurements and bisects lines into segments

• Pencil Sharpener: sharpens pencil’s wooden coating to reveal more graphite

LESSON 2: DIFFERENT MONITORING FORMS/SLIPS

• Property Custodian: works for inspection and for a safe working environment. Their job is to maintain equipment quality and to keep everything systematic and organized

• learning to inspect and detect defects is what makes a good property custodian

> MONITORING FORMS:

1. Inspection report: keeps track of tool condition

   • fill one out by putting the name of the tool, place a check mark if it is conditioned or unconditioned, and add remarks or recommendations (if needs repair or replacement), and the inspector

2. Tools and Materials Checklist: identifies tools that are needed for a project

3. Borrower’s Slip: indicates tools to be borrowed

   • fill one out by putting the name of the tool, putting the quantity, purpose, and date of return. Also add borrower’s name and property custodian and signature

4. Borrower’s Log: indicates the whereabouts of tools that are borrowed

5. Purchase Requisition Slip: list of tools that need to be purchased

6. Deposit Slip

7. Inventory Report: indicates how many are left, sold, or needs to be fixed

   • fill one out by adding the date, item/s, item code, quantity, description (in bullet form), remarks/recommendations, custodian and reporter’s name

LESSON 3: PROPER USE AND CARE OF TOOLS

> Usual Defects:

• Chipped/Nicked edges

• Cracks

• Warped surfaces

• Faded/Scratched hatch marks

• Missing Parts

• Dull points

• Blocking/clogging

• Rusting

> USUAL PROPER CARE:

• clean tools with markings GENTLY without removing marks

• store in a safe place, away from hot places to avoid warping

• never use cutting tools with plastic tools to avoid scratches

• immediately remove stains from drafting furniture

• keep food/drinks away from drafting furniture

• sharpen tools that need to be sharp at all times to avoid dullness