diff --git a/computer_design/index.html b/computer_design/index.html
index 3a8ed91ef3bc1c94deef037c94e39e51f42ee1c9..a8d7ce2e37d9ada851ed0d570fd2efabe711cbbe 100755
--- a/computer_design/index.html
+++ b/computer_design/index.html
@@ -14,6 +14,7 @@
<b>2D design</b><br>
<div style="margin-left:2.5%">
+
<b><i>raster</i></b>
<div style="margin-left:2.5%">
<a href=http://fab.cba.mit.edu/classes/863.15/section.CBA/people/Schaad/images/week6-electronics-design/echo-hello-world-schaad-hand.jpg>scan<br>
@@ -24,8 +25,10 @@
<a href=http://www.imagemagick.org>ImageMagick</a> <a href=http://www.graphicsmagick.org>GraphicsMagick</a> <a href=https://converseen.fasterland.net/>Converseen</a> <a href=image.html>encoding</a><br>
<a href=http://www.geeqie.org>Geeqie</a> <a href=https://wiki.gnome.org/Apps/Gthumb>gThumb</a>
</div>
+
<b><i>vector</i></b>
<div style="margin-left:2.5%">
+<a href=https://www.youtube.com/watch?v=6orsmFndx_o>Sketchpad</a><br>
<a href=http://potrace.sourceforge.net>Potrace</a> <a href=trace.mp4>mods</a><br>
<a href=http://www.inkscape.org/>Inkscape</a> <a href=inkscape.mp4>shapes Booleans clones</a><br>
<a href=http://www.libreoffice.org/discover/draw/>lodraw</a><br>
diff --git a/electronics_design/index.html b/electronics_design/index.html
index 1ee5a266cfb9edce94d148d4dda47208a2190bc6..95fe642eeb292fdd106b2531ac2bb2647a2e1ce3 100755
--- a/electronics_design/index.html
+++ b/electronics_design/index.html
@@ -54,7 +54,7 @@
Kirchoff's laws: sum current at node, voltage around loop = 0
power: P = I<sup>2</sup>R = IV
EDA (Electronic Design Automation)
- sketch, schematic entry, component placement, (auto)routing, simulation, fabrication
+ sketch, schematic entry, component placement, routing (auto, partial, puzzle), simulation, fabrication
<a href=../electronics_production/index.html>layers</a>, angles, vias, power planes, ground pours
<a href=https://docs.oshpark.com/design-tools/kicad/kicad-design-rules/>design rules</a>, DRC (Design Rule check), ERC (Electrical Rule Check)
<a href=http://fab.cba.mit.edu/classes/863.15/section.CBA/people/Schaad/week6-electronics-design.html>drawing</a>
diff --git a/electronics_production/index.html b/electronics_production/index.html
index 2bfdb3fee18fe22c2392e1329ecf797cad299c83..21bd817cad3a46cdc639c0ecfda409206c995ea1 100755
--- a/electronics_production/index.html
+++ b/electronics_production/index.html
@@ -12,7 +12,7 @@
<div style="font-size: 120%; margin-left: 2.5%;">
<pre><font face="bitstream vera sans,arial,helvetica,sans-serif">
<b>PCB (Printed Circuit Board) fabrication</b>
- <a href=https://spectrum.ieee.org/with-the-dead-bug-method-hobbyists-can-break-through-the-highfrequency-barrier>dead bug</a>
+ <a href=https://spectrum.ieee.org/with-the-dead-bug-method-hobbyists-can-break-through-the-highfrequency-barrier>dead bug</a> <a href=https://fab.cba.mit.edu/classes/863.19/CBA/people/zach/week03.html>circuits</a>
<a href=http://pub.fabcloud.io/helloworld/uncharted/acid_etch.html>etching</a>
set-up, feature size, batch
<a href=https://www.4pcb.com/media/presentation-how-to-build-pcb.pdf>lithography</a>, <a href=https://hackaday.com/2016/09/12/take-your-pcbs-from-good-to-great-toner-transfer/>transfer</a>, <a href=https://www.youtube.com/watch?v=RudStbSApdE>print</a>
@@ -42,7 +42,7 @@
nesting
<a href=http://sibusaman.fabcloud.io/doublepcb/>registration</a>
<a href=http://fab.cba.mit.edu/classes/863.17/Harvard/people/HonghaoDeng/project-3/project-3.html>vinyl cutter</a> <a href=http://fab.cba.mit.edu/classes/863.17/Harvard/people/HonghaoDeng/project-9/project-9.html>flex</a> <a href=http://fab.cba.mit.edu/classes/863.17/CBA/people/tomasero/index.html>connections</a> <a href=http://fab.cba.mit.edu/classes/863.18/Harvard/people/victoria/week_04.html>encapsulation</a> <a href=http://fabacademy.org/2019/labs/kamplintfort/students/alessandra-crotty/week6.html>milling</a>
- <a href=http://fabacademy.org/archives/2015/doc/fiber-laser-cutting-pcb.html>laser cutter</a>
+ <a href=http://fabacademy.org/archives/2015/doc/fiber-laser-cutting-pcb.html>laser cutter</a> <a href=https://fab.cba.mit.edu/classes/863.22/CBA/people/Wedyan/LIG.html>LIG</a>
<a href=http://fab.cba.mit.edu/classes/863.19/CBA/people/joaowilbert/week6/>printing</a> <a href=https://www.voltera.io/product/pcb-printer>conducting inks</a>
<a href=https://www.google.com/search?q=electroplating>plating</a>
<a href=http://cba.mit.edu/docs/papers/00.07.E-broidery.pdf>sewing</a>
diff --git a/molding_casting/index.html b/molding_casting/index.html
index 0b1c4728ccfbe4cba79c6fd35073fa7780b56f6a..7d1f909fec936bfc4064d118854d08b44e09413c 100755
--- a/molding_casting/index.html
+++ b/molding_casting/index.html
@@ -103,7 +103,11 @@
ventilation
protection
disposal
- <b><a href=https://formlabs.com/applications/injection-molding/>printing</a> <a href=https://academany.fabcloud.io/fabacademy/2024/bootcamp-instructors/workshops/3Dprint_molding/>printing</a></b>
+ <b>printing</b>
+ <a href=https://fabacademy.org/2024/labs/skylab/group_assignment/week12/>FFF</a>
+ <a href=https://academany.fabcloud.io/fabacademy/2024/bootcamp-instructors/workshops/3Dprint_molding/>SLA</a>
+ <a href=https://formlabs.com/applications/injection-molding/>tooling</a>
+ <a href=https://www.youtube.com/watch?v=zdv6MlFlOrA>speed</a>
<a href=../computer_machining/index.html><b>machining</b></a>
<a href=http://fab.cba.mit.edu/classes/863.18/Architecture/people/rodrigo/#/week-7-molding-and-casting>surface finish</a>
<a href=finish.jpg>rough, finish, stepover</a>
@@ -128,6 +132,6 @@
<i>individual assignment:</i>
design a mold around the process you'll be using,
produce it with a smooth surface finish
- that does not show the production process,
+ that does not show the production process toolpath,
and use it to cast parts
<i>extra credit</i>: use more then two mold parts
diff --git a/system_integration/index.html b/system_integration/index.html
index 13c446faf0da3b77625a17bdd5a2f14ae817cc7b..4257864ade3a2d3cc975f2198a7669db665b3e15 100755
--- a/system_integration/index.html
+++ b/system_integration/index.html
@@ -62,6 +62,8 @@
<a href=https://hackaday.com/2018/04/04/kapton-miracle-material-with-a-tragic-history/>insulation abrasion, dielectric breakdown, shorts</a>
<a href=https://gitlab.cba.mit.edu/jakeread/ratchet/-/raw/master/old-ratchet/log/2020-05-31_ratchet-hip.jpg>wire guides</a>
<a href=https://www.nytimes.com/2006/12/11/business/worldbusiness/11iht-airbus.3860198.html>wire harnesses</a>
+ connector corrosion
+ insulation abrasion
<i>components</i>
MOSFET over-voltage, current, temperature
inductive flyback, reverse protection diodes
@@ -97,6 +99,11 @@
<i>fail fast</i>
<a href=https://www.cnbc.com/2023/07/26/boeing-has-lost-1point5-billion-developing-starliner-spacecraft-for-nasa.html>feed-forward</a> <i>vs</i> <a href=https://www.space.com/every-spacex-starship-explosion-lessons-learned>feedback</a> development
+<b>repair</b>
+ drop, shake
+ modularity
+ <a href=https://en.wikipedia.org/wiki/Bob_Widlar>Widlarize</a>
+
<b>lifecycle</b>
<a href=https://pirg.org/campaigns/right-to-repair>(right to) repair</a>
disassembly, reuse, recycling