====== PHYSICS AND ASTRONOMY STUDENT MACHINE SHOP CLASS ======
 
===== Session 1 - Introduction to student shop =====

  - Course outline 
  - Rules & Guidelines handout
  - Availability of tools and equipment in student shop
  - Video: Safety Procedures and Guidelines 
  - General shop safety
    - First Aid kit
    - Green fire resistant jacket & shop aprons
    - Eye Wash Station
    - Fire Extinguisher
    - Fire blanket
    - Phone
  - Projects (simple drill press, milling, lathe, soldering, sheet metal parts)
  - Materials-stock room, fasteners, sign out slips, etc.
  - Reference book: (a practical guide to design and construction)  **Building  Scientific  Apparatus** by Moore, Davis, Coplan 
  - Commonly used materials
    - 2024 aluminum: Hard, stronger than 6061T6, not suitable for welding.
    - 6061T651 aluminum: most common used aluminum, good for welding, and general machining of parts.
    - 303 stainless steel: red color coded, contains sulfur  to make easier to machine, not suitable for welding or vacuum use.
    - 304 stainless steel: green color coded, tough to machine, suitable for welding and vacuum use, most common SS alloy, also known as 18-8.
    - OFHC copper: Oxygen free high conductivity,  commercially pure Cu, light blue color coded, suitable for welding and vacuum use, soft and stringy/ gummy to machine.
    - Brass: easy to machine, tends to grab and pull cutting tool/drill into work use specially ground drills, machine dry (no cutting oil).
    - Teflon: white, slippery, vacuum compatible, very soft, difficult to glue
    - Delrin: white or black, easy to machine and tap, harder than Teflon, difficult to glue.
    - PVC: white or gray, least expensive plastic, can be solvent glued
    - Acrylic: also known as Plexiglass, clear & various colors, rigid, can be heated and bent, somewhat brittle, can be solvent glued.
    - Polycarbonate: also known as Lexan, clear & various colors, tough, thinner sheets can be bent, good for guards, can be solvent glued.