Jul 25
Friday
3D, 3D Modeling, AutocadDrawing a bolt with solid modeling
|
AutoCAD 12 and higher versions
Greetings Daily AutoCAD readers,
In this article, I will try to explain how to make a 3D model for drawing a screw with hexagonal head. Excuse me if I make any mistake or something missing. In mechanical works, screws with hexagonal head are one of the most popular items that are used as connectors. You should refer to standard catalogues for the standard dimensions like thread size, diagonal dimensions, screw head thickness, screw length etc.
1- After obtaining the dimensions for the screw which we would like to draw, in order to make the 3D model of the screws, let’s draw its upper part first. Let’s enter the thread profile that we want and use 60° as shown in figure 1.
Fig.1
2- Let’s run the Revolve command. Select our entity and then the two end points around which we will revolve the entity. Then, let’s revolve it by 360 °…
Fig.2
Fig.3
3-Let’s draw a hexagonal inside the diagonal radius of the screw and make it thicker not so much but a little bit more than the head by using Extrude command. Then, let’s draw a larger circle that has the same center and give it a thickness in the same manner…
Fig.4
4-Next, we will subtract the hexagonal prism from the large cylinder around it by using Subtract command. Finally as we subtract the cylinder that is hexagonal inside from the draft screw, then our screw is completed.
Fig.5
Have a nice day…
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Jul 6, 2007
Reply
It’s a good technique & i learnt it.
Jul 11, 2007
Reply
Dear ,
It is not a threaded Bolt.Because the threads are Spiral, & Itis not sprial threads. It is just like Groove.You Cannot Make threads in the earilest versions of AutoCAD 2007
Jul 15, 2007
Reply
How can you call it as a thread, even though it appears to be, as each thread will be separate from other without continuity.
Jul 19, 2007
Reply
Your drawing is ok for “reprsentative” bolts and screws. Probably will work fine if dimentioned and described.
I use SolidWorks and profile the thread and use the spiral to track the thread profile. You cant profile to the center as it causes conflicts. But profile the threads near the edge and later create a plane and fill in the center area, then an offset side plane and cut the ends. This will allow creat a drawing on the surface of the end of the thread and boss rotate it to a defined end., Then taper the end as done with simple boss rotate, profile. Then boss your hex (or whatever) head.
In SolidWorks you can create a table and type in a wide variation of sizes on the entire bolt/screw/nut.
Good Luck
Dec 13, 2007
Reply
do you know how to draw a roller chain or an engine timing belt with a teeth in 3d? thanks
Oct 11, 2008
Reply
Can I know Bolt & Nut draw by using autocad detail. Step by Step.
Thanks,
Wintyi
Mar 20, 2009
Reply
can i know net & bolt drawing by using cad……….
thinkyou,
Mar 20, 2009
Reply
sir,
how to draw the weir dreawing. styp by styp (2d to 3d)
thanks
Jun 24, 2009
Reply
If you draw the threads your way, then the threads are not spiraling like it is suppose to. Technically they are not correct. You can use the Helix command and the Sweep command to make a true thread.