Hello @laughingcreek @TrippyLighting @etfrench, and the Fusion forum,
Appreciation shout out to etfrench for file 7Star.f3D.
The overall design concept is a hollow seven point star
with space inside to house a printed circuit board (PCB),
wiring and seven LEDs at the star points.
The following is not a step-by-step but somewhere
between an abstract description and a step-by-step
process to describe the
methods and commands used to get the final product,
7Star_241218_ETFrench_05.f3d, attached herewith.
The reason for this methods description is in the hope
that a similar description could be elicited on
how 7Star.f3D was created.
Methods Description
Mr. French's excellent model is solid so the first thing
done was to figure out a way to hollow out 7Star.f3D
Tried several methods to Extrude out the inside of
7Star that would create a plane parallel to and, say, 3 mm
inside the face of the star. No luck.
So, to hollow out 7Star three sketches were drawn and extruded
that created some space within the model.
To create the holders for the LEDs a Component called
LED Holder was begun, a Sketch called LED Holder
was drawn and Extruded as Body child to the LED Holder
Component.
The seven tips of the star were then removed using
a sketch named ' Remove tips' and a Cut Extrusion
done to blunt the ends of the star points.
The LED Holder Body was then attached to the blunt
end of the star point using the Modify > Align
command (JHackney provided a tip on this: After
the Align command is chosen, mouse over the face
to be aligned and hit the control button and
hold down the control button while choosing the
glyph of the plane required.)
The LED Holder Body was then copied and aligned
with the blunt end of the other six star stems.
Finally, a Sketch called 'Remove back for LEDs'
was drawn by projecting the Star body onto a
Sketch in the XY plane. A replica of a 5 mm
LED was created and fit into the LED
Holder Component and based on measurements
the LED Holders and the adjacent Star stems
were extruded so the LEDs would fit up
inside of the LED Holders and the LED
leads and wiring could pass into the
inside of the Star and to the PCB.
It is hoped that a description of how Mr. French's
7Star.f3d was created, similar to the description
provided herewith above may be elicited.
.
This is what has been garnered by studying
7Star.f3d.
First a Sketch of a triangle was drawn.
This is where it starts to get fuzzy.
The next command in the Timeline is
an Extrusion. But exactly what was Extruded
and how is not known.
The next two Timeline items are Draft1
and Draft2. Perhaps these Drafts are created
by saving the model, not sure.
The next timeline item is Mirror. It is
conjectured that the object that was
Extruded was half of a Star stem and
the other half of the Star stem was
created with the Mirror command.
The Circular Pattern command was then
invoked to create the remaining six star stems.
The Circular Pattern features was found
at Design > Solid > Create > Pattern > Circular Pattern.
Finally, the Modify > Combine command was
invoked to make the seven Star stems into
a single unit.
Is this a fairly accurate description of
the process employed to create 7Star.f3d?
What was the nature of the Extrusion done
after the Sketch and before the Mirror?
Thanks.
Allen Pitts
