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  1. kojiai

    Surface Finish Spec

    SPI Mold Finish Guide is helpful, thanks. I guess I just don't want to specify anything too constricting so as to increase production costs, but I suppose D-2 is reasonable.
  2. kojiai

    Surface Finish Spec

    I started a discussion in thread301-372488 , but was asked to also post in this forum... I'm putting together some basic engineering drawings for our injection molder. I'm adding some surface finish specs, but in many cases where the part is not seen by users, or is not critical, I'm not sure...
  3. kojiai

    Engineering Drawing: No Surface Finish

    I'm putting together some basic engineering drawings for a plastic injection molder. I was going through and indicating surface finishes when it dawned on me; I'm not sure how to indicate that no addition finish is necessary. There are several surfaces or parts that are not visible to the user...
  4. kojiai

    Sweep Unexpected Twist

    Thanks for the tips. I'm trying a combination of them, but the Combine option is always greyed out. I was playing around witht he subtract option earlier, but it always removed something that I didn't want it to, so I'm likely setting it up improperly. I'll keep playing around with it, but any...
  5. kojiai

    Sweep Unexpected Twist

    Okay, I have yet another question. Clearly this 'ridge' needs to interface with another piece. So now I'm looking at doing the inverse, rather than an extruded shape, it's a cut shape into the part. I've been playing around with it, but putting surfaces inside another part is somewhat...
  6. kojiai

    Living Hinge Design

    I'm struggling with the proper way to include a living hinge in a model I'm working. Eventually I'd like to be able to use an injection molding process. This process should include a living hinge. The attached file is a looped part. One section joins the two parts with a snap-type fit. The other...
  7. kojiai

    Sweep Unexpected Twist

    You've blown my mind. Surface extrudes, offsets and intersect?! Never would have crossed my mind. Thanks for all help and effort from everyone. This has been a really interesting lesson.
  8. kojiai

    Sweep Unexpected Twist

    Closer than I've ever gotten, thanks CorBlimeyLimey. Could you run me through the steps you took a bit. What was the Surface-Offset operations for?
  9. kojiai

    Sweep Unexpected Twist

    CorBlimeyLimey, the pic does in fact just show an extruded surface, just happened to be when I took the screen grab. I can thicken that surface and get closer to what I'm aiming for, but the shape remains the same. The thickness of the ridge narrows as it moves down the curve. I attached the...
  10. kojiai

    Sweep Unexpected Twist

    snowshoe2, very cool trick. I'll have to remember it, thanks for pointing that out to me. Unfortunately, using this method doesn't maintain the cross-sectional area of the ridge as shown in the pic.
  11. kojiai

    Sweep Unexpected Twist

    snowshoe2, it doesn't look as though I can extrude or widen a extruded surface. Perhaps I'm missing something? I've been trying to use a second sketch as a curve guide, but keep running into problems such as "too many entities share a point" or some other error. Not sure why, sometimes it...
  12. kojiai

    Sweep Unexpected Twist

    Yes, it appears to have trouble navigating the arched portion. This may be because the arched portion begins to rise as it is still curving around the corner, so it's not a straight up-and-over, if that makes sense. I would still assume Solidworks to be able to navigate this geometry, but maybe...
  13. kojiai

    Sweep Unexpected Twist

    CorBlimeyLimey, thanks for bringing my attention to that. It's a useful second-option. However, it doesn't allow me to center the lip/groove in the way I wanted. Ideally, the ridge would run along the center of the surface. Is there another similar option for this?
  14. kojiai

    Sweep Unexpected Twist

    I seem to have uncovered the realm in which Solidworks struggles because I have a trouble at every step. For each curve I have to do a sketch on a plane, project it onto the curved surface, then convert it to a 3D sketch before I can use it. I seem to run into random problems at each phase...
  15. kojiai

    Sweep Unexpected Twist

    I'm trying to create a basic 'rib' along the top surface of a part. However, Solidworks can't seem to correctly resolve the path and I get "Sweep resulted in topologically invalid body" error. I have the path as a 3D sketch along the surface of the part, and the profile, a simple square...

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