New Member
Posts: 2
Registered: ‎11-20-2012
Message 1 of 5 (179 Views)

# Would love some help - lost.

179 Views, 4 Replies
11-20-2012 02:05 AM

Good evening - I'm a civil engineering student looking for some assistance with my first work placement sample project.
I've been given dimensions for a structure and asked to create a 3d model.

While I'm fine with 3d rendering, I'm not sure how to go about drawing the measurements I've been given.

One of the guys has drawn a draft up on Solidworks (which I need to take the data to produce what I need to input into CAD) I have attached it

Any help/pointers would be greatly appreciated! I think I'll be up all night pondering on this.
Thanks!

Mentor
Posts: 240
Registered: ‎06-04-2009
Message 2 of 5 (160 Views)

# Re: Would love some help - lost.

11-20-2012 05:07 AM in reply to: fredwecker

There isn't any Z for creating 3D model.

*Expert Elite*
Posts: 1,440
Registered: ‎08-15-2008
Message 3 of 5 (126 Views)

# Re: Would love some help - lost.

11-20-2012 08:06 AM in reply to: fredwecker

Pick an arbitrary point on your screen, I would use 0,0.  Simply start drawing arcs from that point to the distances shown.  You are given dimensions to establish the triangle so draw that as well.  The horizontal line where the arc starts is where I would assume that the arc is tangent to the line, I think this is a safe assumption.  Now draw the first 300 arc and where it crosses the first large arc you draw another 300 arc, where that crosses the second large arc you draw another 300 arc.  Just a matter of placing one arc at a time.

New Member
Posts: 2
Registered: ‎11-20-2012
Message 4 of 5 (89 Views)

# Re: Would love some help - lost.

11-20-2012 02:08 PM in reply to: GrantsPirate

Thanks! I've done that (or attempted to) but I'm still stuck at a standstill.
What I've done so far is plotted the two triangles with their values from a point (0,0). I've then drawn an arc between those two lines and just estimated the curve.

I can't seem to get the correct angles as I don't know the proceedure to work with.

*Expert Elite*
Posts: 1,440
Registered: ‎08-15-2008
Message 5 of 5 (78 Views)

# Re: Would love some help - lost.

11-20-2012 03:02 PM in reply to: fredwecker

So it sounds like you have the large and small arcs drawn.

One method would be to start the spline command and pick each intersection.

You could try drawing a few arcs, I am guessing this will work better.  As a tip first draw a line from the left side of the horizontal line to the right side, be sure to use endp osnaps.  Quit the line command, start the arc command, hit enter rather than picking anywhere.  Now with Ortho off pull your cursor to the right to one of the intersections where the arc appears to change direction,  keep moving the cursor and pick again to the right.  If my assumption is correct the arc will hit those intersections.

Recently Solved