Computer-controlled machining notes October 13, 2021

Notes from random generator sites:
can use 0ohm resistor to jump or just use wire as jumpers.

This week's assignment: make something big

we will get plywood
make a bookcase, computer stand, sketch
machines:

shopbot is the workhorse this week.
arch shop has onsrud, bigger/stiffer than shopbot. this would be more useful for like
long jobs--a more substantial machine.
other machines listed for comparison.


materials:
rigid foam insulation: used to insulate building. we can use to make large molds for large paths.
also good for architectural detailing
Plywood:
mdf: medium density fiberboard. fibers in a binder. machines smoothly because it has no grain.
used for highway billboard signs. negative: HEAVY, has bad tension. binders can outgas.


stiffness = how fast, tolerances can get, etc

goal to do project without fasteners, but can be used if wanted

cutting air and test cuts.