Author Topic: Modeling Help: Helical Coil Help  (Read 1214 times)

I'm dealing with this sucker.  Right here.



How would I best get this coil to "stick" to the surface of the drill head without using a nightmarish amount of trig on each of the 61 coil corners?

I am using Milkshape 3D version 1.8.4.

Just because the coil is on the surface of the cone doesn't mean it has to be actually part of it. Other than manually moving the parts to the surface I have no clue how to do it. I even don't know how you would do that in Blender.

Scale each section down to the drill, it won't be perfect but I can't think of any way to automatically do this.

If there is a "scale to Origin" option, maybe I could do that with only the Z-axis, but then again, I'd have to do that with 60 parts.  This could lead to a great deal of inaccuracy and would also smash the threads down.

You're right, Demian, but until I see that I can't do that, I will continue it.

If there is a "scale to Origin" option, maybe I could do that with only the Z-axis, but then again, I'd have to do that with 60 parts.  This could lead to a great deal of inaccuracy and would also smash the threads down.
Milkshape is an extremely basic modeling program, so it doesn't have the advanced features modeling programs like Blender have.

I rotated the curve about the origin on the Z-axis.  Scaling should be fine.

The spiral part will get thinner towards the top when you scale it though.
Edit: I actually just though of a way to do but I'm not sure how I would get a spiral curve in Blender.
Edit2: Got it. Send me the MilkShape file pictured in OP and I'll do it for you.
« Last Edit: June 26, 2013, 04:05:14 PM by Demian »

Sure.  I'll get it in.  Would a different format be better?

Sorry. My Blender-fu isn't strong enough and I can't figure out how to not make the thing correctly. The triangle shape rotates along the curve destroying the "blade" look.

If you need to rotate the triangles, they are rotated by 30° each rotation.  Or π/12 for those who use radians.

I think I may... or may not have figured out a way to do this using Blender 2.6 and the shrinkwrap modifier.

If you send me the file Ill be sure to give it a shot. ^.^


Here's a video I made, trying to explain the way I would do it. (Sorry, you'll have to download it)

http://www.mediafire.com/download/h1q3gtpc1wkwk20/CoilTutorial.mp4

This is not precise and is not really a tutorial, even though I call it that. It's more of a suggested method that may or may not work for what you are trying to achieve.

I gave it another shot. I couldn't do the exact same design but I could do this.