I am trying to create the attached assembly as (1) part. See one-piece.SLDPRT, I would like to create a loft using the 3 sketches. It doesnt look like this can be done.
Anyone know another way I can create this part using the 3 sketches?
NO way to do that in "sheetmetal unless you break it up some, see attached, may need a bit more tinkering to get everything right where you want it but the shape is there
You will have to weld at your center sketch. Sheetmetal lofts are easy to create but very hard to produce in metal, your press brake operator will not thank you for this. LOL
I don't think this is a part that requires a Loft Feature, you just need to approach it differently and work some trickery:
First take "flume 1" and roll it back and remake it as one half. Then add a tab feature to the front of the bottom. Add a flange to the outside edge and tweek the profile sketch to close the corner and square up the front to the bottom. Snipe the top corner at the back too, enough to make a bend relief for the top flange. Add the top flange and mirror the whole body. This flattened nicely for me. Depending on your manufacturing methods you will probably need to add bend relief and/or radius for laser, water jet punching or whatever. Give it a try tell us what works for you. As previously mentioned by others, stay away from sheetmetal lofts if you can get away with more defined methods.
I'm long out of lunch break by now, but, if anyone cares, I could probably redo my version when I get home and post the model later when I have time to figure that out.
here's my take on it.
I was considering the miter flange solution, but not being sure how much leeway there is to move the corner locations and flange angles, I went with the best "Copy the existing geometry as close as possible." solution I could come up with on short notice. Thinking farther on it later I still can't think of a much better way to make this in one piece. I haven't installed 2011 yet so can't see exactly what trickery Adrian came up with but I don't see any need for anything I would consider beyond everyday sheet metal stuff. Certainly nothing beyond what I found when I looked at Chris's original part. As I said in my earlier post, the flat-pattern would need some fine tuning dependent on the exact method of manufacture. Not the most simple part to cut and form, but I don't think the shop should have too much to complain about.
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