Any screw tutorial?

Rich O Brien · 3 Aug 2009, 16:12

Hi,

There's lots of tutorials out there regarding making screws but the problem using the tool is the twist that occurs to the thread as it spirals up (or down the shank)

Here's a start that gives reasonable results

Error 404 (Not Found)!!1

(groups.google.com)

Hope it helps

Also this topic

http://forums.sketchucation.com/viewtopic.php?f=15&t=15784

Gave me some more answers

majid · 3 Aug 2009, 21:37

thanx mate for hrlps , but it seems that my screw is a bit different, as you see the end part is going to be as a needle , and I've tried the taper scale on my screws, but no good result... any new idea?

Dave R · 3 Aug 2009, 21:55

Majid, that's a nice looking screw. Do you really need that sort of detail in your projects? If the screw will be seen only from a distance, you might find it useful to insinuate the threads. I've used the sketchy line materials adjusted for size and direction to give the appearance of threads. I've also just used concentric circles to create the impression of threads.

Rich O Brien · 3 Aug 2009, 21:59

Hi Majid,

For me, what you're attempting is very difficult. You'll be tapering a set thread height at the top of the shank to nearly no thread at the bottom. Also you're attempting this on a tapering shank too.

This hurt even thinking about it

Best of luck with it as it is an excellent modeling challenge. I'm also gonna try it over the next few days and see how things go.

takesh h · 4 Aug 2009, 07:35

Hi majid,
Use Drawhelix ruby (free, http://www.crai.archi.fr/rubylibrarydepot/ruby/drawhelix13.rb) and "Extrude along sloped curves" of 1001bit tools (share but free for 30days) from http://1oo1bit.com/default.html
With them and little bit of EXPLODE and MOVE, you can create the forms you wanted.

The whole process can also be done in SU natively but a little bit cumbersome. hint: http://forums.sketchucation.com/viewtopic.php?f=15&t=17794&start=15#p143092
Cheers.

screw.swf.zip

majid · 4 Aug 2009, 08:30

thanx Takesh, I'll try the trick.

takesh h · 4 Aug 2009, 08:59

Just noticed you have also mentioned the diminishing threads.
I think what you can do is to use BoxTaper tool of FredoScale (http://forums.sketchucation.com/viewtopic.php?f=180&t=17948).
Create threads as I did in the flash movie above.
Apply Fredo's script only to threads, then combine it with a cone.
Hope this helps.

majid · 4 Aug 2009, 20:44

thanx all , mates ... I made this...FAR ruby+Helix

takesh h · 5 Aug 2009, 05:47

majid,
That's a nice-looking screw!
But you started tapering a little too early? - a part of the thread base is not touching the shank.

majid · 5 Aug 2009, 10:07

yes... it was a fast try...but even faster and better using FAK+SketchyFFD:

the.pjt · 21 Nov 2009, 21:36

there is a plug in : shape Blender this can help you creat a screw in another way