Need help with modelling / geometry problem

[b16gee]

Hi Guys
New here, and quite new to 3D modelling in Autocad. Really hope you can help me out with a problem.
See attached .dwg file, the client has asked me to detail this in about 20 places on a structure.
Its an SHS edge beam joining a CHS rafter.
Both are at different angles.
The CHS has a cleat plate, as does the edge beam.
The 2 need to align and connect. The bolt hole must be 40mm off the face of the rafter.
The rafter CL & edge beam CL need to coincide at a setting out point.
Where the rafter cleat plate connects to its rafter it has to be in alignment with the rafters plane.
SHS edge beam will need to have its sides vertical and horizontal, so the edge beam cleat won’t be aligned with the SHS faces .
Even though I have the autocad file as an example, have tried to draw this about 100 times but cant get it right – I have been unable to contact the draftsman who did it. Does anyone have any ideas on how to draw it and what commands to use?
As I said very new to modelling, not experienced in 3D Autocad and unsure about how to use UCS and other modelling operations.

Very frustrated!!!!

Thanks Guys!

[ReMark]

You want to know how to draw this?

Looks almost like a davit arm. You have both square and cylindrical tube shapes.

What kind of structure is this being used on?

[b16gee]

Yes I need to know how to do it as I have to replicate it about 20 times. It must be simple but I cant get it to work out.
Its for a series of shade sail parasols, umbrella like structures. Thanks for your reply

[ReMark]

The cylinders are just extruded circles.

The square tube shapes can be created by extruding a profile of the shape. Same goes for the tabs that are welded to the post. There's nothing complicated about any of the objects other than getting anything that is not parallel or perpendicular to the column put in at the correct angle.

I'd suggest using the PressPull command over Extrude but either way it would work.

As far as orienting your UCS you can use the Dynamic UCS (there is a toggle for it in the Task Bar at the bottom of your screen) or you can use the Ribbon or even do it (old school) manually at the command line. Just make sure you are in the 3D Modelling workspace.

[ReMark]

PressPull Circle.jpg

Quick example of using PRESSPULL.

Draw the baseplate for the column with the anchor bolt holes in 2D. Use the PRESSPULL command to give it height.

[b16gee]

Its the angles that I cannot get right. I have managed to draw an extruded cylinder for the rafter, and an extruded 2d shape for the tabs on the rafter, made this into a block that I can re-use for every location and explode once it once it is in place- then modify to fit. Trouble is every location all the angles are different. If I can just get the tab correctly orientated, on the CL of the edge beam and joining to the rafter in line with the rafters axis - then the edge beam alignment should come easy. Not sure how to use the dynamic ucs for this?

[ReMark]

The angles for the tabs on the column?

[b16gee]

tabs on the column are fine, because they are all the same. Its the tab at the end of the rafter that Im struggling with

[ReMark]

Your terminology is throwing me off. Are you referring to the yellow arm that is attached to the column as the rafter or the square tube shape?

[b16gee]

Sorry - Ignore the column (green) and where the rafter (yellow) connects to it. That is fine. Its the other end of the rafter that I am concerned with