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Morning Meeting Notes > Day 3

Quentorres

  • board design is done.
  • RP2040
  • Using PIO...any function can be assigned to any pin.
  • Quentin's FreeDAP software uploads well on Windows...not so well for Linux and MacOS. Neil will talk to Spence for fix.
  • "I keep telling Mac people to use a friendly operating system"

Solder Masking

  • "soldering is obsolete!"
  • solder mask milled
  • solder paste applied
  • hot air used (oven an option)
  • board works!!

Blender Parametric Modeling

  • Thursday afternoon presentation with Eli
  • Hello World tutorial ready...team Rico & Adai

Rust

  • possible tutorial by Nicolas

Recitation: a good sustainable material recitation by Materiom

Electronic Production

  • make a "Quentorres"
  • the Lunyee is working well
  • UGS Pendant is working well
  • New V-bits...cheap and works well if dialed in properly

Output Devices

  • Micropython examples now available for many devices...Xiao + H-bridge, PWM via PIO, I2S example forthcoming

Machine Building

  • "Use whatever you want"
  • Jake, Quentin & Leo...paper on Modular Things
  • MT used at HTMAA class successfully...suggested for FA2024 (not required)
  • Svavar writing code for MT brushless motors...need some programming help
  • Yuichi working on MT coreXY code...want to reference code from HTMAA
  • N on a mission to kill gcode...still
  • MODs version of Gcode sender...as possible project

Midterm Break

  • break will be more serious...
  • project system diagram, tasks, schedule
  • review will be...did you do that homework
  • ...on FP site

Input Devices

  • BNO085...Adafruit Orientation IMU Fusion breakout, USD25...small pitch chip, but can be made in lab via reflow
  • WebSerial has matured...chrome, chromium browsers only

Computer Controlled Machining

  • Big Mill...reschedule to occur before Mold & Cast
  • 4x4 size CNC machines...USD1k scale...viable as machine for this assignment week
  • "Meter Scale" still the requirement

Network & Comms

  • ESP32-C3 Xiao used successfully for N&C
  • N wrote many examples for it...
  • ...async IO used to link to web server
  • ...webBLE possible with ESP32-C3
  • ESP32-C3 Sense...has a camera
  • ...NODE Red & Websockets to MODs
  • ...MQTT
  • Kris recommends REST...

Recitation: 21C Vocational Education

  • "Fab Futures"...a class that never starts or stops (no cycle). 1mth rolling. Each month is an intro to a topic.
  • ex: 1mth on ML
  • ex: 1mth on Datascience
  • ...each month has a guru
  • ...to be incubated in Bhutan (in the fall?)
  • N curates content and gurus
  • JMM...traffic controller
  • ...not centered on digifab, focused on style of learning...peer to peer, etc.
  • redefining a "fablab"

Interface & App

  • new Pytorch model
  • N to focus more on ML frameworks

Wildcard

  • multi-axis machining

Recitation: Startup

  • 20 new speakers/mentors...analog devices, VM ware, etc.
  • "...every lab has a incubator component...with these mentors"
  • A focus for N going forward...

System Integration

  • "...no more 3D printed box containing a tangle of wires"
  • SI to be a stand alone class
  • "Failure Modes"...supply chain, capacity, mechanical, wiring, power, components, software, scaling, collaboration
  • "Packaging"...mounting, wiring routing ("shake test"), surface finish
  • "Design"...PC vs Mac, Design for Manufacturing, UX, Documentation
  • "Testing
  • "Lifecycle"...disassembly, repair, recycle, end of life
  • Assignment: document for users of your final project its construction, production and operation of FP

Other Recitations

  • AI
  • Version Control
  • Machine Building
  • Fab All-In