Lulu Call (11.6.2018)

Agenda

CATCHUP
how is our progress going?
will we make the stated deadlines???:
end june: first batch
end october: second/last batch

input from community:
>> http://www.kobakant.at/KOBA/community-input/

versions/naming:
Lulu Star
Lulu Daisy

design:
driver (maurin)
shape (all)
>> http://www.kobakant.at/KOBA/lulu-monitor-feb-apr/
>> https://www.flickr.com/photos/plusea/
e-textile connections (mika)
>> http://www.kobakant.at/KOBA/lulu-monitor-feb-apr/
logo (mika)

sourcing materials:
pcb manufacturer (mika seeed studio ask?)
led (maurin)
tube (hannah)
optic fiber (hannah) + mika

Notes

Maurin has been working on Lulu Star PCB design (see github)>

Less Waste
We talked about the design considerations that would lead to a design with less waste (material, tool use, time/energy)
– size and tessellation of board outline shape (material)
– tool-path length (tool use)
– length and width of copper traces on PCB (material)

PADS (sewable + bus)
shape of sewable pads?
why sewable hole and 2,54mm spacing bus holes? can these be combined?
5mm bus spacing is better for sewing with machine! 2×2,54 = almost 5mm…. can use every other in manufactured bus
mika’s experiments >> http://www.kobakant.at/KOBA/sourcing-materials/
combine holes. 2 holes per contact (so can sew over bus line!)
INTERCHANGEABLE e-textile sewing footprint for STAR & DAISY!
what arrangement of contacts? GND DATA VCC / GND VCC DATA / VCC GND DATA

2-sewing-hole contacts idea: