Hi Pilou, yeah it is good to only model half when possible.

But if the model is fairly simple it does not make that much difference.

- Michael

>>>>You still can't use a very large radius though because only a certain size will fit into that area, too large and it would kind of start to have to wrap around the tube.

But if you do want a very radical "filet", dont forget "Blend" from the MoI reference.

Michael, that looks good and rotating the circle and the "whole object" selection are helpful tips. The radius is a little less than a 1/32nd of an inch which is kind of small.

It is probably outside the objectives of Moi3D, but I will ask anyway. Is there a possibility of a weld-like fillet (without the texture) in a future version?

Thanks. Now to try your handiwork.

Leonard

Good point, Pilou. C4D has mirror issues and I naturally shy from mirroring. I will give Moi's a try. –L.

Hi Leonard,

> Is there a possibility of a weld-like fillet (without the texture)
> in a future version?

I'm not sure.... Do you have a description or some images of what that would be like?

My guess though is that may not be part of the regular CAD toolset though, so it probably would require some custom work to make it happen and fillets are a particularly difficult area to mess around with.

- Michael

I think that is "extreme filleting", BurrMan. ;-) The Blend tool is really impressive. –L.

Hi Leonard,

> Is there a possibility of a weld-like fillet (without the texture) in a future version?

I don't know if your aware of the fillet options in V2 but there is a 'Constant' fillet option, which I think represents how a weld would look like without the texture.






Cheers

WHat about "Inverting the filet" so it's a bead instead of a radius.

A really nice tig weld would probably look like a filet. I would imagine an arc weld to look like this more often than not:




It was fairly easy to make though. I just ran a normal filet with the radius I wanted, then I copied the little filets seam edge and deleted the filet. Then I pasted the seam edge back and rotated it with MoI's edit frame rotation widget, 180 degrees, and swept it with the 2 newly calculated surface edges from the filet. Poof....Bead. But if it was possible to invert the filet as another option, I think it may be a nice addition to that list.

Does anybody else envision a weld bead as this shape?

Hi Burr,

> Does anybody else envision a weld bead as this shape?

I just Googled Images for 'tube weld' and got these.........

http://www.bikesportmichigan.com/reviews/blade05/lg/bladeseatmast.JPG

http://gallery.mtbr.com/data/mtbr/515/234452TiHeadTubeWelds1.JPG

http://www.penguincycles.com/fab/fab_weld1.JPG

Closer to a constant fillet, I think :)

[EDIT] Or this beauty........ http://dana60.com/sceep/sob/booger4.jpg ......model that!!!


Cheers
~Danny~

Hi Burr,

> But if it was possible to invert the filet as another option,
> I think it may be a nice addition to that list.

I don't think it is currently supported by the geometry library...

It seems like it would be an unusual option, have you seen it before in any other CAD program? I don't think that would normally be explicitly modeled in a CAD design.

I'm also not quite sure exactly how the bead would be constructed - with a Fillet it is clear that the fillet surface that is generated is tangent to the places where it connects.

The bead you show does not seem to be either tangent or opposite of tangent, I guess maybe 90 degrees perpendicular to the adjoining surfaces?

- Michael

Hi Michael,

> I don't think that would normally be explicitly modeled in a CAD design.

That's correct, it's usually symbolized on the 2d detail drawing, I have never seen a weld modeled for engineering purposes.
For realistic rendering maybe.

Michael, on another note, is it possible for chamfer to have 'Constant' distance?
It came up from this post, if you have a shaft cut on an angle and chamfer the angled end it in real life, the chamfer would be constant, MoI produces a non constant chamfer in this situation.

-

Hi Danny,

> Michael, on another note, is it possible for chamfer
> to have 'Constant' distance?

I don't think that it is possible to have that with 2 chamfer distances specified...

Right now the way chamfer works, having 1 distance is the same as having 2 distances specified with equal values in them.

- Michael

>>>>I just Googled Images for 'tube weld' and got these.........

THose would be Tig welds for sure...

THe booger weld looks more like someone tried to tube weld with an arc welder! (or they hired a hawaiian) If they could weld, it would be a raised bead.

>>>>>It seems like it would be an unusual option, have you seen it before in any other CAD program? I don't think that would normally be explicitly modeled in a CAD design.

No I have not seen it in a CAD program. It's like the age old newb modeler wanting to model the threads on a bolt. But then again, Danny did model Knurls on his camera!

I was just pointing out what a bead weld was, as you did ask. It could play into the artist side of MoI (Shouldnt Knurls be bump maps?)

The image I showed was just a normal G1 filet, inverted on it's own trim boundries. No consideration for tangency with surrounding geometry.

Your image shows the possibility to "G3 Blend", how does that work precisely?
Could you show an example, with curvature comb, that has been "G3 Blend"ed.

Because no software I know of can do that with just a single option-box, click boom and you're done! :)

Hi Burr, well adding in a bazillion unusual options for creating specialized stuff would definitely be fun, but as each one is added the user experience for creating the more normal stuff gets degraded a little bit, because it then becomes more difficult to find the "normal stuff" amid the huge sea of unusual and "cool" specialty functions.

So there's actually a negative price to be paid for adding in options for every conceivable kind of thing...

I know that you're only talking about adding in one at this point and not a bazillion, but that's how you end up with a bunch, by just adding in one at a time... :)


re: how to make a bead - I'm not sure that simply rotating a regular fillet by 180 degrees would actually do the proper job in all cases actually... One thing to be aware of is that a fillet is not always made up of a single arc in all spots like in the case you showed there. When thing are at different angles to one another they will draw out arcs that have different subtended angles in them (like some arcs are longer than others), like for stuff like this:



- Michael

What would probably be feasible would be to have a plug-in in the future that would let you select a fillet face and then it would replace it with a modified "bead" version.

Having specialized stuff like that in an optional plug-in command rather than baked as an option directly into a standard command like Fillet tends to help keep the regular stuff working more easily.

That would probably need a plug-in that would have some compiled C++ code for hitting the surface data at a lower level and not really a script one though. I don't have a system set up yet for doing C++ plugins.

- Michael

Agreed!!!!!!!!!Though it seems we'll both have to accept something.

You''ll have to accept that I will always ask for every possible tool, and that I know squat about application development.

I will have to accept that you have a heavy background in application development and MoI is a better product without the daunting interface.

We're both winner's now! :)

Hi Burr, I agree to those terms! :)

The good part is that the "add custom stuff by plug-ins" strategy helps me to deliver all kinds of additional cool tools but without bogging down the central main stuff too much.

So there is actually a path by which that stuff can get done...

- Michael