Draft | Shapr3D for Beginners

Draft | Shapr3D for Beginners


Draft is used to taper or angle
specific faces of your designs. So, going back to our video game remote controller
design, we might remember we actually used the Translate tools and
Scaling tools to apply a draft angle to this design. So if I just jump to a front
view, we can see that this is just an extrusion.
However, we can see that it’s being extruded at some angle. And that
would be an example of our draft angle. So draft is very useful in some specific
industries and specific manufacturing methods. So, for example, most plastics
might be injection molded, and in order to generate an injection mold, we would
have to remove that plastic component from the mold itself. And you’ll need
that draft angle there in order to remove the parts safely from the mold. If
there was no draft angle or an insufficient draft angle, we might
scratch up the sides when trying to remove it from the mold or break the
plastic part completely. Hence, this draft angle just allows for the part to slide
out of the mold a little bit easier. And in a very similar manner, metal castings
would also need to have a draft angle applied. So, let’s take a look at how we
can apply this draft angle. I’m going to start off with the sketch for my
controller. And instead of just pushing or pulling with the arrows
as we’ve done previously, I’ going to go into my Tools, and right at
the top I have an Extrude option. So, here I can tap to select the faces or
sketches I’d like to extrude so that will be that same sketch,
and tap “Next”, and then whatever length I’d like to
extrude. So the default is 25 and I can change that to 15
or whatever extrusion length or kind of thickness I’d like. So this
is very similar to just extruding with my arrows.
The important difference, however, is I also have the ability to add a Draft
Angle. So if I add a Draft Angle of five degrees and now I
should be able to see, especially if I jump to a front view, that I have
that slight draft angle applied of about five degrees. Of course, I can
add any draft angle I’d like. I’m going to do a fairly drastic draft angle of 15 degrees, just so we can see it more noticeably and you can see that
draft angle has increased to about 15 degrees. Once happy with that, I can just
tap my “Done” check and now I can see I’ve done my extrusion. But I’ve also applied
a draft angle to all of these exterior faces. In the next lesson, we’ll learn
how to use the Shell tools.

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