REVIT
CHAIR FAMILY
By
Dané du Toit
FAMILY
CREATION
§ New,
family, generic metric mass
§ Create
a cage on ref level by adding ref planes around the cross given.
§ Modify – annotate, click aligned dimension.
§ Click from and to where you want to measure – MUST click
3 things for EQ to pop-up.
§ Click EQ – equal spacing even if you move or change it.
§ Add overall dimension.
§ Now I want to change the overall dimension, but can’t
select the actual dimension text.
§ I figured out that because I made it equal, I have to click
on one of the outer reference lines of the cage and then I can adjust the
dimension of that by clicking on the text – This dimension has to be half of
what the total one should be.
§ Should I draw the frame/support structure first and then
the seating or the other way around?
§ I don’t know which elevation to draw on.
§ How do you sweep or blend? It doesn’t allow you to just create a shape,
like a circle and if you do, what then?
§ I am going to try and start with the seating.
SEATING
·
Left elevation.
·
Firstly, I drew a
horizontal reference plane at the height that top cushion of the chair will be
and rename that.
·
Then, I drew a
vertical reference plane where the edge of the back support will be.
·
Extrusion, circle –
create 50mm radius circle over intersection of reference lines I just created.
·
Back elevation –
draw circle to the left so that it snaps to the reference line, lock it to the
centre line.
·
How do I lock a
circle to the reference plane?
·
Create reference
plane a little bit down from the intersection of the previous two and 30mm to
the left.
·
Annotate – angular
dimension – add dimension so that I can just change that when I move the
cushions. – space cushions about 20mm from each other in height.
·
Copy the circle so
that the middle point is over the new intersection.
·
Apparently it only
copies in vertical or horizontal axis, so I copied it down and then moved it to
the left.
·
I am going to repeat
this until I have 6 cushions/cylinders.
·
This is now the back
cushioning of the chair.
·
I now have to create
the seating part – where you will actually sit on.
·
Draw a reference
plane 60mm underneath the previous one and 110mm left of it.
·
Copy the circle to
this point.
·
Repeat this with
120mm intervals for 4 times.
SUPPORT FRAME
·
I now have to create
the support frame, but I have no idea how to do this.
·
I know I should use
sweep, but I can’t seem to get it to work.
·
So I am going to try
and use an extrusion instead.
·
Left elevation –
draw reference plane underneath last cushion.
·
Put an overall
dimension between Ref level 0 and the one underneath the last cushion.
·
Set this dimension
to 200mm.
·
Set plane,
underneath cushion.
·
Extrusion, spline.
·
Draw the form of the
frame on the left elevation, making sure to close it at the ends; otherwise it
will bring up an error message.
·
Click the Ö when done.
·
Go to the back
elevation. Ok, so my back and front
elevations are turned around… but it will just have to stay that way because
rotating it clearly doesn’t work.
·
I can try to mirror
it… Select everything – except level 0 and reference planes that were supplied
and mirror across middle line. It
worked!!
·
Now I just need to
delete the previous object and keep the correct one.
·
So when choosing
what is your left and right side, you should look at the object from the front
view.
·
I am now going to
move and dimension the footing so that it is thin and offset a little bit into
the middle of the chair.
·
Back elevation.
·
Create a reference
plane 50mm to the left of the middle reference plane.
·
Select extrusion,
drag it from the right to that line and lock it to it.
·
Now create another
reference plane 20mm to the left from that.
This determines the width of the frame.
·
Drag the extrusion
to the line and lock it.
·
Create an extrusion
line 50mm to the right from the left edge of the structure.
·
Copy that line 20mm
to the right.
·
Copy the extrusion
to these reference lines to create the other frame for the support structure
underneath the chair.
·
Now I want to draw
the support structure for the seating and back support.
·
Extrusion, draw the
form of the structure.
·
Back elevation.
·
Since the reference
planes for the width of the support structure is already there, I can just drag
the extrusion to fit within the lines, it is already placed correctly then as
well.
·
Now I can just copy
the extrusion to the left side and the support frame will be in place.
·
I still need to
create the bolts at the end of each cushion.
·
I can’t see the
middle point of the circle – the cushion – I wonder if you need to adjust a
setting to be able to see it.
·
Since I don’t know
and can’t find that setting, I am going to draw in reference lines to determine
the centre point of each circle.
·
Right
elevation. Draw a vertical and
horizontal reference line so that the centre point of it forms the centre point
of the circle.
·
I am going to do
this for all the circles.
·
Now I am going to
draw a 10mm radius circle extrusion on the top cushion.
·
Back elevation. Create reference line 5mm from right edge of
structure.
·
Do the same on the
left side of the structure.
·
Drag the bolt –
circle extrusion a just made – so that it sits on the edge of the structure and
between the reference line. Lock it to
the reference lines. It is thus sticks
out 5mm.
·
Drag out the
reference line that determines the width of the bolt, so that it is 10mm.
·
Draw all the bolts
for all the cushions on the right elevation.
·
Since I can’t copy,
because it is locked to a reference line, I drew a reference line down the
middle of the structure and used this to mirror the bolts from the one to the
other side.
·
I just need to drag
each one to the reference lines and lock it to it.
·
I now have bolts on
either side of each of the cushions.
So this is my chair
The
picture I chose:
And my chair: