hey Jonathan here at Colfax Math this channel is all about the applications of
math and ways to get students excited about math and do hands-on projects with
math. Today I'm going to go over how to draw a graph in Desmos and then bring it
in a Corel Draw 2018 so that you can either laser cut it CNC router it make
make it a lot of things you could do with desmos and a laser cutter so right
now we're working on trig it's going to type in here y equals 1 plus 3 sine of X
there's my graph actually usually it looks like this so I have my axes my
grid said that was on the little wrench I go to setting' I undo the grid I undo
the axis so I don't have anything else on there so there's my graph and a
piecewise graph would be really cool like write out their names like a
Johnathan could be a horizontal line with a domain that could be a vertical
line with range and then a semicircle for the bottom of the J and make it
right out their whole name keep all of the equations and then do it would cut
out of that okay so there's my graph now I'm going to go up here to share graph
under share graph I want to export the image I hit export image my line
thickness I'm going to make this one thick so that I could cut out a wide
board so download my PNG you'd see I practiced this a few times this is the
fourth one okay now I'm going to open up CorelDraw 2018 I'm going to create file
new and then my new document I always set this the same as my cutter bed so 24
by 12 that's my laser it's a universal laser and then this is really important
it has to be RGB red green blue it's a hexadecimal system but that tells it how
you program the tool path like it's not RGB you can't cut it out ok there's my
new document in CorelDraw file import I'm going to import that
drawing it was number four import place it down right there that looks good
I could crop it a little bit if I want I could go over here to object properties
I'm gonna click on it okay and then now what I'm going to do is these are pixels
so I have to go trace bitmap outline trace as a logo and now I'm converting
it into a vector two things to remember that you delete the original image and
you remove the background so that's okay so there it is trace you can make it
larger or smaller if you want and then under object properties here I'm going
to turn that outline for a cut-through on the universal laser into a hairline
red and it can't be close to red it has to be to 5500
so now the outline is designated as a cut through vector and then here's my
fill I'm going to undo my fill and now I have my file and I could bring this into
a CNC program I could just bring it straight into I could hit print on my
universal laser and cut cut that sine graph out I can actually just import
this directly into my shaper origin NL CNC router and then cut this graph out
into a piece of wood with that handheld CNC router so it's a cool way to take
the graphing you're doing in desmos and then make something out of it so just an
overview on some of those computer skills to do that
hope you enjoyed the video thank you