I am taking an online drafting class from QueLab, taught by Ethan Moses.
DAY ONE
August 5
First drawing
orthogonal and isometric
Second drawing
orthogonal and isometric
Homework Drawing
with missing forms
with missing forms
DAY TWO
August 6
Dotted lines
indicate hidden geometry
Making Ellispes
(without a compass)
Ellispe representing a circle
in side isometric drawing
Hidden circle/ellipse
DAY THREE
August 7
Screen capture
of the project we were supposed to draw
Orthogonal drawings
Isometric drawing
Cross-section
isometric drawing
There are other 3D drawing approaches besides isometric, where all the angles are not 30 and 60 degrees -- axonometric drawing.
DAY FOUR
August 12
We used Onshape to create a simple cube object, with a few extrusions/intrusions.
A simple cube,
with dimensions, an extrusion, and an extrusion
(plus a cylindrical plug in the center)
Using another sketch,
and the mirror and fillet functions,
to put dimples in the side
The object with dimples
My screen with the same
object as the instructor's screen above
I imported my object
and one of my drawings
into Blender
DAY FIVE
August 13
SECOND DEMO
SECOND DEMO
After rotating a semi circle around an axis,
to make a sphere,
we rotated a circle to eat into the sphere
and make an apple core
We made a second cubic object,
and used it as a tool to subtract the middle of the sphere
We "mirrored" the apple-core sphere
in two directions
We used a plane to split the sphere
We rotated a split piece off
the remainder of the sphere
We made a three side cube,
with interlocking teeth,
like one would make on a laser cutter
DAY SIX
August 14
We started with Margaret's project -- taken from an Instructable -- of creating a two piece wooden pyramid puzzle in Onshape.
We used the pentagon tool
to make a three sided object,
ie a triangle
We dimensioned 100 units
from the base to an apex of the triangle
Then we drew a triangle in an orthogonal plane,
giving the hypotenuse the same dimension of 100
Both the radius line and the hypotenuse line
had to "pierce" the exact midpoint
of the base triangle
Then we created planes
from all 3 sides of the base triangle,
at 60 degrees leaning in
to make a pyramid
Confusion
Then we extruded the base triangle
in the upward direction
We split the solid
with the 3 planes
to ultimately make a triangular pyramid
Then we split the pyramid
to create the two parts of the puzzle
(both with a square side
to fit together)
Front
Side
Orthographic
Ethan's quick way
by drawing one half
and mirroring it
I downloaded the 3D glasses
from the Onshape public directory
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