Need Help!- Modelling & linetypes

[CNC-Hammer]

Hi guys,

further to me recent post(s) I would like to know about linetypes when modelling. I have done very little modelling and understand that a 2D drawing can be created from the 3D model. I just wondered what needs to be done to show different linetypes in the 2D drawing such as a hidden profile when taken from the 3D model.

I have only ever done a 2D drawing or a separate 3D model and not one from the other.

Thanks!

[ger21]

Is this AutoCAD?

[CNC-Hammer]

Sorry, yes it is Acad 2008!

I have done some further research using some old R14 books I have and they mention using PROFILE command. Is this still the case? If so I'll give it a go soon.

[ger21]

Look in the help file for SOLVIEW and SOLDRAW commands. I believe that they will automatically do the hidden lines. I've only played around with these once or twice, though, as I prefer to draw the 2D myself.

[CNC-Hammer]

Thanks Gerry,

I believe those are the commands that I read about.

One other thing, can you advise the best way to draw a threaded hole on a 3D model so the 2D drawing shows the core diameter as well as the thread diameter?

[ger21]

I'd just add it to the 2D drawing.

[CNC-Hammer]

Exactly what I was thinking!

[wages]

been a while since i've done this, but i think SOLPROF and FLATSHOT will help, don't forget SECTION also

FLATSHOT creates a flattened view of all the 3D solids and regions in the current view. The resulting view is a block that is a flattened representation of the 3D model

[ger21]

I'd never heard of Flatshot, but it's pretty sweet.

[CNC-Hammer]

Ok guys I'll give that a go when I get a chance.

What is the correct 3D convention when modeling internal or external threads in AutoCAD?

For an internal I would guess the core diameter. For external obviously the OD but how would the core or thread length be represented on the model?

[wages]

Typically the hole is modeled at the ID for parametric modelers that have a hole tool. See attached video for how this is done in Inventor.

Also, note that AutoCAD Mechanical has a hole tool as well, Here's a quick video showing it also.

Hope this helps.

[jrlifter]

if you can email me an iges or parasolid of your drawing I can send you back a 3 view ortho you can work with for your toolpaths..

jrlifter1971@hotmail.com