FabLab Academy 2012

Manchester Lab

David Forgham-Bailey

Week 5: electronics production

Course Notes:

Comments:
    Software:
    Hardware:

Buildbot.net
self-build laser printer

Google Sketchup plugin - slice modeler

MicroController ATTINY44A-SSU-ND
data-sheet

Circuit board manufacture - industry (good for high-res/multi) - etching - waste!! FabLab (good for one-off and small numbers - machining - dust!!

Modela - cut copper with 1/64th (16mm) end mill - cut outline with 1/32nd

MILLING THE BOARD

    - Select tool
    - Fix board with double sided tape (no forces due to clamp)
    - Before zeroing - Ensure tool tip is clean - tap it - hold tool when tightening -
    - Debur - remove from bed with steel rule
    - Once board is milled wash with soap & water - to remove oils from fingers

Materials:

    - FR4 - epoxy glass - cannot be machined
    - FR1 - phenolic paper - use for milling
    - vinyl cutter uses - epoxy film / copper tape - for flexible / multi-layer circuits
     - high frequency citcuits (radio) substrate must be lossless (like glass)

Weekly Assignment:

    Narrative:

    Materials:
    Machine Settings:
    Photos:

    Files:
    Drawings:

External Links: