Autodesk 123D beta 9 Arc 3 point arc Feature Video Lecture | Autodesk 123D: A Complete Course - Design Softwares

let's continue to look at some of the
other sketch features let's get our
marking menu up right click let's get
the arc option the arc tool now it says
specify a center point now with this
arcs a little bit complicated because
you need to know where the center point
of your Ark will be and also you need to
know what the distance of your art needs
to be so for example let's make that 40
notice how now I'm making a 40-day our
radius or 20 radius arc I can continue
going around in a circle to complete my
circle now I really use this tool
because it's quite difficult not only do
you need to know a center point but you
also need to know your your radius but
look if you happen to know those values
then by all means have used that tool
the second one we're going to use is the
look at is the three-point arc this was
the 1i use regularly because all you
need to do for this arc is you need to
know a starting point you need to know
your endpoint and then notice how now I
can move my mouse in or out and get the
curve that I'm after the arc that I'm
after it could be just a slight curve we
could be more extreme type of curve once
you're happy with the curve that you've
got you just click and there you go
you've got your three point arc so let's
go through that again sketch three-point
arc got my start point my endpoint and I
can now create the curve that I'm after
like so
now have a play with those two Ark opt
tools and just try to get your head
around it and see how you go