fuccaro Posted April 24, 2007 Share Posted April 24, 2007 Hello Fedora. Welcome in the forum! Since you use AutoCAD 2006 the sweep way doesn't work for you. In the past I was often asked how to make threads for bolts. My answer used to be: don't draw real threads in AutoCAD. These days we should focus on our projects -not to waste the time drawing bolts. I think nobody expects to see real threads on screws when examines say a trimming tool. If you really need threads use an approximation: use no raise for the thread (as Yedan did). Even if you extrude a circle along the helix your thread will be imperfect: the section of the thread is formed by arcs, not lines. It could be done with Lisp routines but as I mention: it doesn't worth the effort. And depending of the precision you use you can end up with huge files. So until now the only way for making perfect threaded bolts is to use AutoCAD 2007 (or newer). Maybe someone will try to create bolts in AutoCAD 2007 or 2008 and export the result in 2004 dwg format. AutoCAD 2006 should be able to open it. Quote Link to comment Share on other sites More sharing options...
fedora Posted April 27, 2007 Share Posted April 27, 2007 Thanks, I Just Made A Solid Bolt Without A Thread, I Like To Be More Pro In My Drawings, But It Takes Time. Quote Link to comment Share on other sites More sharing options...
spoine Posted May 10, 2007 Share Posted May 10, 2007 Hi Yedan, How did you get that nice filleting/chamfering on the edges? I am only able to fillet every edge. Cheers if you do not need an accurate thread then look for my explianation on how i made a NUT using Donuts, it gives an accurate looking spiral thread but the thread shape is wrong, instead of the threads being triangular in shape they are circular but when used it is quite hard to tell the differance and so looks ok aslong as all you require is a representation of a thread and your not needing the accurate thread shape. this is the final nut, if you want to know more look for my post, Quote Link to comment Share on other sites More sharing options...
fuccaro Posted May 10, 2007 Share Posted May 10, 2007 Try this old link: http://www.cadtutor.net/forum/showthread.php?t=1254 Quote Link to comment Share on other sites More sharing options...
Pocket Posted May 10, 2007 Share Posted May 10, 2007 Hmmm, I use a different method but its basically the same concept using a round vs a chamfer Quote Link to comment Share on other sites More sharing options...
fuccaro Posted May 10, 2007 Share Posted May 10, 2007 The 30 degree chamfer is according to the Romanian standards. I didn't check with international standards -but I am almost sure that is the same chamfer. Quote Link to comment Share on other sites More sharing options...
spoine Posted May 10, 2007 Share Posted May 10, 2007 Awsome ! thanks guys for your help. Quote Link to comment Share on other sites More sharing options...
yedan Posted May 10, 2007 Share Posted May 10, 2007 seems your answer has been given good luck with it Quote Link to comment Share on other sites More sharing options...
fedora Posted May 10, 2007 Share Posted May 10, 2007 I've got that far in my bolt journey ... bolt-Model.pdf Quote Link to comment Share on other sites More sharing options...
fedora Posted May 10, 2007 Share Posted May 10, 2007 friends, how did you managed to paste an image to a window? Quote Link to comment Share on other sites More sharing options...
fuccaro Posted May 10, 2007 Share Posted May 10, 2007 Fedora About image posting read this: http://www.cadtutor.net/forum/showthread.php?t=8863 Quote Link to comment Share on other sites More sharing options...
cresta Posted August 19, 2007 Share Posted August 19, 2007 Well...?? WagglyFawn..?? Where is the Tutorial you said you may post? We are Interested!! Thank you very much! Quote Link to comment Share on other sites More sharing options...
cresta Posted August 19, 2007 Share Posted August 19, 2007 Forgive me Waggly. I just missed your explanation. We do understand. your picture looks mighty good anyhow. No worries. Quote Link to comment Share on other sites More sharing options...
humaironline Posted April 3, 2009 Share Posted April 3, 2009 Kindly post the tutorial for making bolt thread. i use 2006 and 2007. Quote Link to comment Share on other sites More sharing options...
ReMark Posted April 3, 2009 Share Posted April 3, 2009 A tutorial: http://www.dailycad.com/2008/06/autocad-tutorial-to-draw-a-3d-threaded-bolt/ Quote Link to comment Share on other sites More sharing options...
Astroman Posted April 4, 2009 Share Posted April 4, 2009 Hi Guys, new to the forum and also to autocad. I thought I would just post to say thanks to whatispunk for his tutorial on making a bolt. I am using Autocad 2002 and this is my first model. I am reasonably happy, but it took a couple of days to get it right. The rendering still needs work though Quote Link to comment Share on other sites More sharing options...
Tankman Posted April 4, 2009 Share Posted April 4, 2009 Nice work, looks like a PEM stud! Astroman's bolt looks good too! Like StykFacE said, "A tutorial would be nice." I don't have the need for 3D so I take the easy way out of bolt drawings. Don't require the detail because I'm only drawing pipe, fittings, bolted flanges, plan and elevation views. Been at it 40+ years, almost time to retire. Take a peek-a-boo at the two *.dwg files attached. Although I use '05 and '07, I always save to AutoCAD 2000, mostly by request. 3-8-Bolt.dwg 8-Bfy.dwg Quote Link to comment Share on other sites More sharing options...
aquafire Posted April 10, 2009 Share Posted April 10, 2009 Hello frnds.. I am new to Autocad and this forum.. I dont understand how to extrude a circle of radius 1 along the path.. pls pls help me Finally, you will need to extrude a circle of radius 1 along the path of the spiral. Then subtract the spiral solid from the shaft cylinder solid. Tada! You have a threaded cyclinder! Quote Link to comment Share on other sites More sharing options...
fuccaro Posted April 14, 2009 Share Posted April 14, 2009 Welcome in the forum, Aquafire! Draw the circle and the path. For a bolt you should use a helix but for practicing you could use an ARC or a PLINE placed on a perpendicular plane If you use a 2D shape as path, it is important to have it in a different plane. So draw a small circle, use the UCS command to rotate the UCS around (say) OX with 90deg and draw an arc to be used as path. Start the EXTRUDE command, select the circle and AutoCAd will ask you for the height of extrusion. Enter P (meaning path), press Enter and click the arc or the pline I mentioned before. It should work. Once you worked it out, try it with a helix path. Happy modelling! Quote Link to comment Share on other sites More sharing options...
vutuanminh17 Posted April 26, 2009 Share Posted April 26, 2009 Thanks whatispunk so much,very easy and useful Quote Link to comment Share on other sites More sharing options...
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