Author: riop

This week’s accomplishments

• Practice and present design presentation (3hrs)
• Attend mandatory lab (4hrs)
• Order parts (1hr)
• Research webapp hosting on raspberry pi and begin testing with my own raspberry pi at home (4hrs)
  • Repo will be set up next week as it was not necessary to do this week
• Can’t make progress on gantry mount for pump due to not having part measurements, must wait till it arrives

Next weeks plan

• Take measurements and design gantry mount for pump
  • If filament arrives in time 3D print a prototype and see how well it fits
• Take measurements for water tank to begin designing custom cap
• Set up Github repo for webapp, will allow me to make progress over break on laptop
• Begin research on pipe fittings for water distribution system
• Work on design report which is due at the end of the week

Status Report: On schedule

This week’s accomplishments

Upon further research and verification, it was found that our initial plans for using an espresso machine boiler would not work for the design requirements we had.  Due to it only holding 100ml of water, it could not brew a full cup of coffee (300ml).  This meant I had to research new solutions to heating water and a new pump system due to how tightly integrated the espresso boiler and pump were.  This led to me learning about different pump types such as vibratory, centrifugal, and others.  I ended up landing on a smaller pump found on Amazon (linked in our BOM) and a water bottle that has a heater built in.  These were then paired with food-safe tubing (also linked in the BOM). Due to revamping most of our system and exploring new, unknown methods, this research took roughly 4-5 hours. This change also avoided some other unnecessary complications due to the espresso boiler being a component built for high pressures, which we do not need for our purposes.

• Revamp plans for water heating and distribution system with new components (4-5hrs)
  • See BOM for new components
  • Change from using espresso machine parts to repurposing existing completed systems and adding functionality through arduino / raspberry pi
• Attend mandatory lab (4hrs)
• Begin CAD design in Fusion 360, project made and shared with teammates (1hr)
  • Imported some existing components we will be using
  • Screenshot of Fusion project seen below

• Finalized BOM (1.5hrs)
  • Revamped BOM from last week, previous items in rows 38+
  • Added new items and ensured compatibility, seen in rows 1-17
• Finish Design presentation (1hr)
  • Worked on slides 3, 5, 6, 7, 8, 11

Next weeks plan

• Begin ordering parts from BOM after design presentation
• Continue working on CAD
  • Ideally finish new gantry mount for pump
  • Begin rough draft for water tank attachment to 3D printer
• Set up Github repo and initial webapp project files

Status Report: On schedule

This week’s accomplishments

• Write presentation of initial design ideas and present to the class
• Attend mandatory lab
• Research existing designs, begin thinking about parts to use for finalized design
• Reserve Raspberry Pi from inventory

Next weeks plan

• Look through inventory to see what other parts we can adapt to our design
• Begin sketching general ideas based on feedback and existing inventory
• Research existing methods for insulating electronics from heat + moisture