Fabrication 

Shop Attire/ General Procedures

  • Safety Glasses will be worn by all team members while in work spaces, or while using either hand tools or power tools.
  • Team members will wear only closed toed shoes while in any of the work spaces, and will wear non-synthetic materials if welding.
  •  Team members will tie back or remove loose hair and jewelry before entering work areas, and baggy or loose sleeves will be rolled up.
  • Team members will wear long pants while performing any machining operation, to reduce the risk from flying chips.

Tools

  • When using Lathes or Mills in the Machine Shop, team members will…
    • Team members will use the machine shop Machines only under supervision of technicians or faculty, during the times provided.
    • Bridgeport - 9 x 49" 2 hp 230/460V 208/230/460V Variable Speed Pulley Control 3 Phase Knee Milling Machine - 92813351 - MSC Industrial Supply

      https://www.mscdirect.com/product/details/92813351

      Team members will defer to the judgement of technicians regarding the machinability of designs.

    • Parts will only be fabricated after a dimensioned drawing has been approved, meeting the ME210 standards.
    • Team members will not use cellphones while in the machine shop.
    • Safety glasses will be worn, and all clothing and hair requirements will be followed by all team members when they are in the
    • machine shop, regardless of whether or not they are using the machines.

 

  • When using Power Drills, team members will…
    • Always clamp loose parts to a workbench before drilling.
    • Turn off, unplug, and wait for the bit to fully stop rotating before changing bits
    • Always use a sharp and material appropriate bit.
    • Never start the drill with the bit already in contact with the work surface.

 

  • When Using the Angle Grinders, Team Members will…
    • Always clamp loose parts to a workbench before grinding.
    • 5 in. 10A Variable Speed Angle Grinder with Electronic Speed Control – Powerbuilt Tools

      https://www.powerbuilt.com/products/5-in-10a-angle-grinder

      Turn off, unplug, and wait for the tool to fully stop rotating before changing tools.

    • Always wear a face shield while grinding
    • Check the work area for fire-hazards before grinding
    • Check the abrasive wheel for damage before grinding.
    • Check that the grinder is set to a lower RPM than the wheel’s max RPM before grinding
    •  Check that the correct guard is installed on the grinder before grinding
    • Never start the grinder with the abrasive wheel already in contact with the work surface.
    • Check that parts are cold enough to touch by hovering the back of a hand above them before handling, or wear gloves.

 

  • When using Dremel tools team members will…
      • Always clamp loose parts to a workbench before applying the dremel tool.

        Amazon.com: Dremel 3000-2/28 Variable Speed Rotary Tool Kit- 1 Attachments & 28 Accessories- Grinder, Sander, Polisher, Router, and Engraver- Perfect for Routing, Metal Cutting, Wood Carving, and Polishing : Everything Else

        https://www.amazon.com/Dremel-3000-2-28-Attachments-Accessories/dp/B005JRJE7Y

      • Turn off, unplug, and wait for the tool to fully stop rotating before changing it.
      • Wear a dust mask when using the dremel on a material that produces fine particulates.
      • Check that parts are cold enough to touch by hovering the back of a hand above them before handling, or wear gloves.

     

  • When using a Soldering iron team members will…
    • Remain conscientious of where the hot tip is at all times, and keep it clean with a wet sponge.
    • Return iron to stand when not in use, even if it is cold.
    • Remove all flammable materials from the  work area.
    • Avoid inhaling directly over the workpiece.
    • Only use lead-free solder, and always wash hands after soldering.
    • Remember to unplug the iron after use.

 

  • When Using Potentially Dangerous Chemicals, including Paints, solvents, glues, cleaners, hydraulic fluids, ect, team members will…
    • Dispose of them in accordance with environmental requirements from Lafayette’s Chemical Hygiene Plan.
    • Dispose of them in accordance with Federal, State, and Local regulations.
    • Keep a Material Safety Data Sheet for each material, in the place it is being stored and used.

 

  • When Welding, Team members will…
    • Only weld alone if they have been certified by a supervising technician.

      YESWELDER MIG Welding Gun 100A 8-ft Replacement Clarke Torch Stinger 130EN 180EN Welder - - Amazon.com

      https://www.amazon.com/YESWELDER-Welding-Replacement-Clarke-Stinger/dp/B07MM13DZ2

    • Remove all flammable materials from the  work area, and dry off any wet surfaces.
    • Turn on fume extraction fan, and wear welding helmet, sleeves, and gloves while in the welding area.
    • Inspect equipment, including electrode holder, hood, sleeves and gloves, and set machine to proper current and voltage.
    • Put up welding curtains to protect bystanders.
    • Wear safety glasses beneath helmet while welding.

 

Testing

Programing

  • While troubleshooting the code, all team members will stay out of the way of any moving parts until the code has been thoroughly tested and approved.
  • While troubleshooting the code, the team member(s) behind the computer will always inform the other team members before updating any code.
  • The programming will allow for a ‘limp’ state where power is cut off from all motors, and the fingers can be adjusted manually.  
  • If no E-stops are depressed, or other safety catches activated, the programming will start with a ‘safe’ mode  after turning on where the hand goes limp.

Wiring

  • Before any adjustments are made to the electronics on the device, it will be fully detached from any power source.

Physical Design

Safety of Machinery - Emergency Stop Function - ANSI Blog

https://blog.ansi.org/2015/10/safety-of-machinery-emergency-stop/#gref

  • The robot’s design will include at least two E-stops, so that both the robot operator wearing the data glove, and anyone near the hand itself can stop the hand from moving at any time.
  • The robot’s design will include a physical activation from out of the ‘safe’ mode, that will require the simultaneous use of two buttons, keeping the operator’s hands away from any pinch-points, similar to an industrial press.
  •  The had itself will be built on a sturdy platform, heavy enough to prevent it from falling over, under reasonable, anticipated conditions.

Third Parties

Ordering Parts

  • Team Members will always use official Lafayette email addresses when communicating with third parties.

 General Pandemic Safety Guidelines

  • Team members will adhere to Lafayette college rules regarding mask-wearing, necessary distancing, and quarantining policy.

    Disposable Face Masks (Pack of 50) - AEMTEK Laboratories

    https://aemtek.com/product/disposable-face-masks-pack-of-50/