Feb 05
Tuesday
3D, 3D Modeling, Autocad3D Modeling Application: Drawing a 3D chain
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AutoCAD 2007 and higher versions
Hi dear bloggers,
Today we are going to learn how to draw a 3D chain in Autocad. Let me mention first, we will draw the chain in 3D instead of drawing in 2D and moving it. The chain photo in the figure is added to the drawing by Raster-Image command.
Figure-1 A 3D Chain
Open a new drawing and switch to isometric view by clicking View>3D Views>SW option. Draw the chain link in the Figure 2.
Figure-2 Drawing the chain link
Make the link POLYLINE after eliminating dimension and axis lines by turning the axis and dimension lines off in “Layer Control” Window. There are articles about how to make a polyline. You can do it by using PEDIT and BO commands. EXTRUDE the link by 2 units like in the figure 2. After extruding it, copy the link, thus upper and lower faces are formed. For the connection between links; draw a circle with a diameter of 9 units and offset it 15 units ( pink colored ) and move it from its center to the center of the lower link hole.
Figure-3 Extruding the Chain Link and Copy Process
Draw a CIRCLE with 7 units of diameter and extrude it by 1 unit. MOVE it from its center to the center of the upper link. This is of course representative, in case there is a rivet with both sides exploded. I do not need to draw because there is no direct effect for modelling. You can arrange the links in a row by copying them or make a rectangle ARRAY by 3DARRAY command.
Lastly, our chain is ready when you render it (optional).
Figure-4 The Rendered image of the chain
May it be easy.
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Feb 11, 2008
Reply
Dear Mr. Ahmet,
I am trying to draw an elliptical gear (in 2D) I made the ellipse in x and y axes and even I draw a teeth also to
make it Polar Array. So, the remaining tooth will be inscribed inside the ellipse. But I don’t have the option to select the ellipse to make array of tooth inscribed inside an ellipse. Could you please advice me how to make an elliptical spur gear in Autocad 2008? Thanks in advance.
Feb 15, 2008
Reply
GOOD JOB.
BUT NOT HELPFULL FOR NEWBIE,
ALSO MAKE UR TUTORIALS FOR DOWNLOAD. SO WE CAN USE OFFLINE
STEP BY STEP PROCESS WOULD HAVE BEEN HELPFULL
Feb 15, 2008
Reply
@mansur
For make polar array ; You use of UCS system with some UCS of objects.Your problem this.Easy come! Your pleasantly
Feb 16, 2008
Reply
congrulations mr.Ahmet ! very beatiful tutorials..Thank you for this application..
Feb 19, 2008
Reply
bus 3d figure in autocad command
Apr 21, 2008
Reply
Sorry for the noobie question but im new to autocad.
I have drawn the circles all to size but how do i get the 50 radius in the right place??
do i do it as an arc?? please can sumone help??
Thanks!
Apr 22, 2008
Reply
@macca
for make 50 mm radius ; Before draw a 50 mm circle you..but circle draw a methot TTR chose…
Jun 2, 2008
Reply
To anyone.
I need an elliptical sprocket, 3″X 11″. 1/2″ separation at pivot and 5/16 arc for the chain seat. It’s 1/8″ single speed bicycle chain. It’s an extreme ellipse I know but need for my project. No one seems to be able to make one for me .
Thanks Bob
Jul 20, 2008
Reply
That last paragraph is a little confusing. A circle of 7 units offset by 1 unit and move from its center…?
Just say how far the inner surface of the outer plates are apart and the rest should be clear. The outer surface of the inner plates should butt up to the inner surface of the outer plates.
Is the 7 unit circle inside of the 9 unit circle to represent the pin? Unneeded since there is already a 6.67 unit dia. hole to show the pin placement.
Jul 29, 2008
Reply
do u have any more advance tutorials,like toilets,hand basins, bathtubs etc..
Sep 24, 2008
Reply
ahmet.
I am sure you are a very good draftsman. However this is the second of your tutorials that have been very very vague, even for an advanced user.
as with the rim , I was able to duplicate this drawing just not using your techniques.
Oct 2, 2008
Reply
This technic where its shown that is beyond me.all of people can be draw different technic…Autocad maight be improve by professional user..
Mar 24, 2009
Reply
Dear Sir,
i’m using autoCAD 2004 but helix and sweep command is not working wat can i do? Please reply asap
Best Regards
Murali K
Mar 24, 2009
Reply
@Murali
Helix and Sweep commands not in autocad 2004 .Because its commands of Autocad 2007 and next versions..