Multiple small flanges instead of one big one

Jason_Holt

It's easy to make a flange, and easy to make a flange narrower using "modify face".  But what if I want to turn a long flange into multiple lit, like this:
https://cad.onshape.com/documents/a6bdb34235bb22181c3cdc1a/w/5a554c9c2ff1d2ad9a845444/e/82ee62d57befbaee0630a233

Only solution I can find is to subtract extrude after finalizing the model, but then the cutout doesn't get made from the flattened sheet metal part.

Digging deeper, after using modify face to shorten the first flange, I can make a second flange that goes the opposite direction (blue part):
https://cad.onshape.com/documents/35d308ecd1c5c38187f0df11/w/d036e23a77b982951307a735/e/65d8a0ce1659da40b286d23f

But if I try to make them both go the same direction it fails (gray part).

MBartlett21

Try using extrude+cut and make sure the extrude goes through all the bend as well

Jason_Holt

Digging deeper, looks like onshape is confused about where the second flange goes. That looks like a legit bug to me. (Look at the square in the lower left corner of the unfolded part -- that corresponds to the lower flange)

https://cad.onshape.com/documents/35d308ecd1c5c38187f0df11/w/d036e23a77b982951307a735/e/1d4dca7c90939e41263ef67e

MBartlett21

Try using extrude+cut and make sure the extrude goes through all the bend as well

Jason_Holt

Thanks, that does seem to work.  It was tricky getting the cut to extend through the entire bend, but oh, I see, I can create sketches on the flat part as well.  

MBartlett21

Glad to see it worked!

Jake_Rosenfeld

@Jason_Holt

"Up to vertex" end condition of extrude is useful for doing cuts that need to cut through the entire bend, but none of the base plate.

emagdalenaC2i

You can also create the extrude cut in the Flat pattern without set the extrude depth