I have a simple contour and a pretty simple path for it to follow. How do I keep the contour from twisting by the time it reaches it's
destination? See attached
What's wrong with it? Are you still on 2017? If so, I can't help you there.
However, here are the steps to take, in some additional detail:
1. Roll back to before the sweep
2. Use Insert->Features->Move/Copy to create a copy of your hidden surface body. Make sure the copy is translated -0.5" along the Y direction. The distance should be 0.5" to get to the bottom of your profile shape.
3. Project your sketch onto this new surface just like you projected it before. This will create another curve.
4. Edit your sweep, selecting the options as shown in my first screenshot.
Take a look at your Sketch4 0.500 dim form the base to what I think you want which should be the center of the arc, such that the bottom surface rises with the arc as it lifts away from the top plane. I think when you dimensioned it, you selected Axis 1 as the location that the bottom surface stays 0.500 away from.
To dim it with what I think your intentions are:
select the arc, then the bottom surface, then it will do what I think you are looking for
I thought you might be on to something there...but I re-defined it and no luck. Dang thing still twists 4.68 degrees before it gets to the end.
Hello Jody, as is, it looks to be tracking correctly.. a few options for this is to specify a Twist of 0 degs... or, if you want a physical driver,.. extrude a surface .5" (parallel in this case) and make the path tangent to that surface/spine. (image)
Moving profile twist from "None" to "0" does nothing. Truth is "none" is ..and should be, the same as "0". What is the surface offset I see in your tree? Also what did you actually select for your profile and path in your example. The names in your selections are unfamiliar to me.
In a number of cases with my own models I have fixed a sweep by changing profile twist from none to 0.
Thanks Dwight. I wish it worked in my case. I swallowed my pride and sent the file to my VAR. Hopefully they can figure out why it's not working.
The twist part works just fine if you sweep along the sketch rather than the curve you created. Of course, you need to follow that inclined surface though. Since the path is at an angle to your profile sketch, it can't really figure out what you want to keep constant. This is exactly what guide curves are for.
If you'll create another plane or surface offset from your angled one, then project the same sketch onto it, you can use it as a guide curve to achieve this:
I can't get it to do anything when I select a guide curve. I'm sure you are busy, but could you attach your model. I'm running out of time because of this simple little feature that I can't get to work.
Check this out. I don't even have the option to select a guide curve in this case.
Never mind. No guide curve 'cause I had the profile twist on and set to zero. I'm about to surrender and produce something that I really don't want because the %$#!!& CAD software.
Jody Holm wrote: Never mind. No guide curve 'cause I had the profile twist on and set to zero. I'm about to surrender and produce something that I really don't want because the %$#!!& CAD software.
Jody Holm wrote:
I never ends...any idea how to open this file?
I believe you've got it Josh! It was key to select "Follow path and first guide curve". Not sure I did that the first time. All said and done, there seemed to me to be too much constructing going on to create this shape. The horizontal relationship at the bottom of the sketch should have been enough in my opinion. Thanks for your efforts....I'm going with it!
...yep, none, as was said is tracking correctly and "0" twist is another option and it is is also tracking correctly. (for solidworks 2018,.. prior versions did not)... the offset is/was for reference/test and for setting the .5" distance for the vertical surface/guide curve.. and again, it tracks correctly if you observe the normal path... attached is showing individual Ruled Surfaces at the bottom of the .5" and it is normal to..and, this works with a simple (none, 0 twist) Sweep as well but.. what it shows is the surface is tracking correctly (straight likes, Black (planar) as it transitions the turns (arcs,.. green/blue.. rainbows) .
Thanks for your efforts Paul, but surfaces are out. This feature is a small part of a bigger picture and needs to be done with solids.
..sure,.. than, lets use a simple example for you and maybe you will understand?
..attached is a solid Thicken of the .5" path... you see now what is happening, do you understand now,.. or, do you want sweep do defy what it is capable of?
..otherwise.. I can imagine what you may want.. and that is, you want the base to be planar (black, no color)?.. so, you can use a .5" offset and do a Replace Face.
I got some good success with changing it to Loft - Using Centerline Parameters. I played around with guide curves on the sweep but i quit after 10 minutes of trying to duplicate your curve.
I have the file attached but I'm already in 2019.
Here's what I did:
Does this help?
Thanks Nadia. My VAR suggested the same thing. Seems like more work but we do what we gotta do!
Ideally, I would like to use sweep curves but that's way more work than the loft approach. This is more work, but you get waaayyy more control over the geometry so definitely worth the effort!
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