Making tyres in SU

lecra

Hi Gilles,

I have looked at your model, have you any reason to give your tire thickness?

Which thickness do you mean? Strength of materials or the width of the tire? Strength of materials was given due to the drawn profile that I have revolved with the follow-me tool. Width of the tire is given by the function of this tire. This is an implement tire used in the farming industry which will be flatten with the weight of the charge (2-3 tons).

Gaieus

@lecra said:

...BTW, this is a new view of tires Gaieus. I think the tire industry would not be amused if customer wants to have new tires with an horizontal tread I know, this is only for demonstration purpose but it looks very strange if the tread is 90° rotated...

Haha. I did not even realize. I saw something was wrong but just went ahead with the example.

gilles

I mean this, it will increase the size of the file.

Gaieus

Ah yes, I also noticed that the tyre has wall thickness. Completely unnecessary. In theory, indeed it is advisable to model everything "physically correct" (i.e. with thickness) but only where really needed.

lecra

Gilles,

@gilles said:

I mean this, it will increase the size of the file.

No specific reason It comes out of the idea to incorporate the tread in the profile and then revolve. This will produce a lot of additional faces which are not desired in the game engine I use, using a lot of memory. Below you can see the very beginning of the model:

A bientôt.

gilles

You could do it this way.
Less work.

lecra

Gilles,

@gilles said:

You could do it this way.
Less work.

I know. I take this way out of another idea.

The problem is still the UV mapping of the tread and sidewall. I had a look at the UV Tools Gaieus mentioned, but I really don't know how to use that. It is so complicated!!

gilles

http://forums.sketchucation.com/viewtopic.php?t=39442#p348501

lecra

Dear Gilles,

@gilles said:

http://forums.sketchucation.com/viewtopic.php?t=39442#p348501

Thank you for your short tutorial. I will give it a tray, even if QuadFace is still a 'black book' for me!

oganocali

You may want to check out Tgi3D's cross-section-editing tool. This feature is unlimited in the free training edition.

Ogan

lecra

Hi oganocali,

@oganocali said:

You may want to check out Tgi3D's cross-section-editing tool. This feature is unlimited in the free training edition.
Ogan

Where do you mean can I use this plugin? Concerning what? Can this help me fighting against the texture mapping issues I have?

oganocali

Basically you use it to convert the cylinder on the right to the tire on the left (with texture) easily.

lecra

Hi oganocali,

@oganocali said:

Basically you use it to convert the cylinder on the right to the tire on the left (with texture) easily.
[attachment=0:3vfaxnzg]crossexample.jpg[/attachment:3vfaxnzg]

Ohh, I see. Interesting. I was searching for this tool, but I'm not sure if I understood that this is part of the Amorph plug-in, right?

Thank you for your support.

oganocali

Yes this is part of Tgi3D Amorph. This feature is available unlimited for free in the training version.

lecra

Hi all,

Me again! I hope to nott bother you with my problems but this story with the tires is really producing headache to me. In this tread i received a lot of suggestions how to make such a tire. I choose the one with thomthom Quadface tool. This one is leading me to something that I also don't understand:

How can I have this space on the left and right side at the edge and not having the canal near to the sidewall edge? I have deleted the canal left and right in the texture but this does not help.

Attached the model:
FlotationTireStrautmann6.skp

lecra

oganocali,

@oganocali said:

Basically you use it to convert the cylinder on the right to the tire on the left (with texture) easily.
[attachment=0:96mqqya7]crossexample.jpg[/attachment:96mqqya7]

Could you show me how you have formed the cylinder with TIG cross section tools?

oganocali

Here is a video explaining the usage of Tgi3D cross section editing tool. In your case you should texture the cylinder before you edit it into the tire shape.

[flash=800,620:x8ykvevl]http://www.youtube.com/v/11mhfNJlduE?fs=1&hl=en_US[/flash:x8ykvevl]

lecra

Hi oganocali,

@oganocali said:

Here is a video explaining the usage of Tgi3D cross section editing tool. In your case you should texture the cylinder before you edit it into the tire shape.

I have downloaded the training version, installed but I have just only this toolbar available and there is no cross section tool available! What I'm doing wrong??

oganocali

Hi,
Opps the video showed old icons.

The 4th tool from the left is the cross section tool. In SU most tools provide a hint if you hover the cursor over the icon a few seconds.

Hussel Hann

attempt to model the tyre..its a tedious job.
if only there is a plugin that able to wrap something to a curve surface...or maybe it do exist but i've missed it.

tyre 2.gif