[Tutorial > Modeling] Grooves in a tube?

3eighty

Yes, Thats it...Not as many grooves (perhaps 2-3) and of course the tube end would have to be round...Thanks for taking the time to answer and start me off..Think of the opening shot in the James Bond movies...

Richard

boofredlay

That is exactly what I thought when I panned around to this view
If you need me to make a quick tut just ask. It's really simple.

3eighty

When you have time, A tut would be nice and much appreciated...I just can't seem to hit the right thoughts..

Thanks for your time and efforts..

ELYSIUM

Hi all,

Eric i too could use some help, i need to model a towing wire for my tank model, wich has the same groves, but on the outside, process is shurely the same, i just have to delete the outer geometry after no?
Here is a pic of what i need.

tks for your help!

Gaieus

Now Pedro that would realy be better just to texture a somple tube. But of course modelling it would be even more of a challenge!

ELYSIUM

Tks Gaieus,
I know, i have been thinking if it is really worth it, it might give too much weight to the model, for a barely visible feature, but in either case even if ultimately i don't use it, it will still be useful to learn some more sketchup skills.

boofredlay

Here is the tutorial I promised. I hope this helps. Just click the image.

Elysium, I agree with Gai, just texture a tube with a rope image.

I don't know if there is a follow me twisting ruby out there, this might prove helpful if so.

alpro

Thanks Eric, your tuts are always very helpful and appreciated.

Mike

ELYSIUM

Tks Eric, i already knew this technique, and used it to make spiral columns.
I had hope that you knew a way to make it kind of follow me, so that it could make the same effect on curved sections.
Tks again.

( a ruby to do this whould be very usefull )

solo

Eric

I found another use for it....

boofredlay

Is that Gai on the other end? Ok, now I see 007.

3eighty

Thanks again for your time and help eric///Pretty cool solo..

boofredlay

Glad to help. Your welcome.

Gaieus

@unknownuser said:

I know, i have been thinking if it is really worth it, it might give too much weight to the model, for a barely visible feature, but in either case even if ultimately i don't use it, it will still be useful to learn some more sketchup skills.

I couldn't agree more. Even if a technique/trick is not used ultimately, one always wishes to knowhow it could be done (though we were cast out of the Paradise for this urge to knowthings... )

Eric: perfect as usual...

Solo: really cool. And yes, Eric, that's me!

Edson

eric,

very nice tut. it reminded me of the way ancient builders used to cut stone to make twisted columns. the process must have been the same.

Roger

A threaded tube is an interesting special case. I did a model a thousand threaded holes. SU just did not want to deal with all the geometry even though it was a component. Moves take too much math. I just painted the inside of the whole with a set of parallel lines. In that configuration it is hard to discriminate if the lines are spiral or concentric. You might also try creating an angled jpeg pattern and painting the repeating pattern on the inside of a tube. The reason this would work well is that the inside of a tube can only be seen from a very narrow angle, so the fact that the pattern is flat would not be apparent in the final work. Animation would not work, but for a static view I think it would save a lot of useless geometry.

Jean Lemire

Hi folks.

Look in Wikipedia for information about riffles. You will see smooth bore, polygonal bore (Boofredlay's tutorial) and riffled bore (see attached SU file).

The file is a bit large, sorry.

Riffled bore.zip