I am trying to create this shape using sheet metal and am having trouble getting these faces to be planer. Can anyone help?
Here's my take on it.
Here is another way that we have tried to create it.
For sheet metal you need to add triangle areas and then build your model from there, time consuming but will work..
Wish you'd have 2019
If you are making a sheet metal part then why are you not using the sheet metal tools?
I downloaded your part and hid the loft and was able to make this. It flattens and everything. I saw 2 other ways to approach this sheet metal part, it all depends on how you plan to proceed with the fabrication of this.
I was trying to keep this in as few pieces as possible. I really would like to laser and press brake as much as I can on this.
Thanks for looking at it.
I would have it cut out of one pc, not multiple pcs..
There is a twist in the loft, that's why it doesn't allow the Sheet Metal Features
I had started like you did but didn't like how it was coming out. We would be cutting on our laser and press braking as much as we could. I will play around with yours to see if I can get it how I want it. I would love to get rid of the brake in the vertical side, that would consist of getting the center loft profile perfectly inline to the surface.
Thanks for looking.
I know, I have been trying to get the center profile to come out where I can get rid of the twist.
Casey Bergman wrote: John, I was trying to keep this in as few pieces as possible. I really would like to laser and press brake as much as I can on this. Thanks for looking at it.
Casey Bergman wrote:
Doing that may add tooling costs as shorter length dies sets (possibly custom lengths) may be required to span a bend with colliding with neighboring flanges.
Run it by your fabber to see what they say. It may be possible, but not necessarily bent and ripped where you think it should be.
I see collisions.
We have this capability in-house to fabricate this part with our existing tooling. If I run into an area that we can't bend I would slit the bend area and form manually if needed. I would have to clean up the colliding areas for sure.
Casey Bergman - How soon do you need this part??
I did try the Sheet Metal Bend feature right off, this works ok, but a lot of finessing to get the bend degree just right, plus you need to edit each Edge Flange Sketch to match the profile. This part is definitely doable in one pc, just takes a bit of work...
I still have some time, this is a large project that is still being developed. I know there is a way to do it, just curious about how all you guys that are way smarter than me would approach it! I really wish the lofted bend would allow you to have something similar to the guide curve on a loft. I know that is asking a lot.
Ok just re-tried the Sheet Metal Bend Features and I think the best plan would be to use the edge flange , however to do that and to get around the twist you need to modify the process like this....
To do that you need to modify the sketch like this
..yeah, if you can compromise or average out some of these to be planar, it looks like you can get the others to be planar as well?
As soon as you do Compound Angles like this weird things start to happen
I would really like to modify the sketch in the center so that these compound angles go away.
Won't happen ......
It's been about 5 years since I did this type of work almost everyday. That was when the Sheet Metal Tools worked when they felt like it.. So before the Edge Flange Feature, I would make a 3D skeleton, which ended up just being triangle shapes, and each triangle was there to create a plane so I could create a sketch so I could extrude the solid. After all that was done, I needed to add relief holes in the corners so it would bend properly.
If you remove the twist then the ends won't be vertical, they'll be out a couple of degrees...
How about modeling a solid in the final shape and do a Hail Mary, 99 yard conversion?
Then you can choose your bends and rips and the bend angles are in their final position w/o futzin'.
You can do that as well, but you won't be able to follow Casey's sketch, somewhere you need to give to keep everything planer, which is the only way you can even convert to sheet metal..
Choices are, follow the sketches and add additional bends, or have the part looking different then the sketches provided.. Period...
..well, maybe nudge the deviations?
John Stoltzfus wrote: Kevin Chandler You can do that as well, but you won't be able to follow Casey's sketch, somewhere you need to give to keep everything planer, which is the only way you can even convert to sheet metal.. Choices are, follow the sketches and add additional bends, or have the part looking different then the sketches provided.. Period...
John Stoltzfus wrote:
I'm having a hard time even realizing I said a potty word like "convert".
I'm gonna have to wash my mouth out...with beer. That'll teach me.
John Stoltzfus I am open to the sketches changing, I really just need the end profiles to be close to what I have.
So I can get pretty close with the sketches you already provided. However, Sketch3 is being problematic.
I have removed the brake in the uppermost flanges but that makes the front "spout" not fully align.
This way flattens to this:
I accidentally attached my first go, proper file attached now.
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