Uh... I continued the curve to the lid's inner top surface. That's what I meant. Words are hard; look at the pretty picture.
馃У 12/N
The basic shape is a difference of two lofts. These images show the profiles and guide rails of both lofts. The curvature combs are for the inner loft.
The curves are 5th degree splines (and two circles). The top profile is not a closed curve, but it overlaps through enough control points to have G3 continuity.
Note that the inner loft extends further down than the outer -- I continued the curve to the lid's bottom surface.
馃У 11/N
Uh... I continued the curve to the lid's inner top surface. That's what I meant. Words are hard; look at the pretty picture.
馃У 12/N
The basic shape is a difference of two lofts. These images show the profiles and guide rails of both lofts. The curvature combs are for the inner loft.
The curves are 5th degree splines (and two circles). The top profile is not a closed curve, but it overlaps through enough control points to have G3 continuity.
Note that the inner loft extends further down than the outer -- I continued the curve to the lid's bottom surface.
馃У 11/N
I decided to make a funnel that screws right onto the desiccant canisters. Then I decided to try some stuff I'd seen about making G3-continuous surfaces in Fusion 360. This isn't perfectly G3, but it's close.
I made it ten times harder to model by flaring the funnel's outer surface out 45潞 to match the chamfer on the bottom ring, but keeping the inner surface G3 with the canister's inner surface. But I got it to work.
馃У 10/N
The basic shape is a difference of two lofts. These images show the profiles and guide rails of both lofts. The curvature combs are for the inner loft.
The curves are 5th degree splines (and two circles). The top profile is not a closed curve, but it overlaps through enough control points to have G3 continuity.
Note that the inner loft extends further down than the outer -- I continued the curve to the lid's bottom surface.
馃У 11/N
I decided to make a funnel that screws right onto the desiccant canisters. Then I decided to try some stuff I'd seen about making G3-continuous surfaces in Fusion 360. This isn't perfectly G3, but it's close.
I made it ten times harder to model by flaring the funnel's outer surface out 45潞 to match the chamfer on the bottom ring, but keeping the inner surface G3 with the canister's inner surface. But I got it to work.
馃У 10/N
(What, is he still talking about this?) When I browse Printables or other 3D model sites, I'm disappointed at how most of the stuff people throw up there hasn't gotten this kind of polish. And then I get a vivid reminder of how hard this kind of polish is.
Anyway, I'm done grousing, for now. Thank you for your indulgence.
馃У 9/N
I decided to make a funnel that screws right onto the desiccant canisters. Then I decided to try some stuff I'd seen about making G3-continuous surfaces in Fusion 360. This isn't perfectly G3, but it's close.
I made it ten times harder to model by flaring the funnel's outer surface out 45潞 to match the chamfer on the bottom ring, but keeping the inner surface G3 with the canister's inner surface. But I got it to work.
馃У 10/N
@chrishuck Okay, so I probably have 2,000 hours in F360 and 5 hours in FreeCAD. Hardly a fair comparison.
My first big issue with FC was, I couldn't select anything in sketches. Then I found the pick radius preference.
My second is that the sketch constraints are very different and I don't always know what I've constrained.
FC has a lot more/better keyboard shortcuts, and the Spacemouse worked out of the box.
1/N
@kbob First of all, this is is great news. Secondly, I would be interested in hearing whether you think the methods you use in FreeCAD are different from how you would do it in F360.
I also use FreeCAD on macOS (in addition to Ubuntu), but I haven鈥檛 seen that warning dialog box since the first time I ran it. It runs quite well on a M3 with 36GB of RAM.
@chrishuck Okay, so I probably have 2,000 hours in F360 and 5 hours in FreeCAD. Hardly a fair comparison.
My first big issue with FC was, I couldn't select anything in sketches. Then I found the pick radius preference.
My second is that the sketch constraints are very different and I don't always know what I've constrained.
FC has a lot more/better keyboard shortcuts, and the Spacemouse worked out of the box.
1/N
It's a pity the hippies never had zebra analysis. They would have done so much CAD...
(How long until I can model this in FreeCAD?)
It's a pity the hippies never had zebra analysis. They would have done so much CAD...
(How long until I can model this in FreeCAD?)
