Trials Bike

[-R3D-]

Hey guys,

Well I am well and truely back into modelling after a long absence.
I've decided to model something from one of my favourite hobbies; A trials bike..

I'm not sure if there are any fellow riders here, but I'm sure some non-riders will like what I've just started.

It's basically a high spec, high strength, light weight bike that you go nuts with over obsticals, walls, fences, rail, you name it.

I'll be modelling the bike in pretty much the same order you'd build the bike up in real life. I will be adding welds to the frame and other relevant places, so it's should come out very life-like hopefully

Comments very welcome :-)

Anyway, this is a photo of what I'm modelling:


Me riding it:


And this is my progress so far:





Wires:






Regards, Rob.

[Zlatovous]

Sweet, looking very clean.

One suggesting - try to actually connect all the parts, don¨t just let them intersect. It looks bad and drags your model down. Especially at the front part

Edit: Now read the description and saw you are going to do that. That's for posting before reading

Looking forward for updates!

[ClassicGamer-3DT]

Great start there, are you using booleans? Could run into some problems later on, but so far so good, looking nicely detailed and clean

Looking forward to seeing this progress.

Kind Regards,
CG.

[McFly]

Very good start, looking forward to more from you.

[-R3D-]

Zlatovous: Thankyou. I was reading your post and thought to myself "I swear I mentioned the welds" haha

ClassicGamer-3DT: I'm using booleans for the CNC machined parts, but cleaning them as I go, so shouldn't have any trouble with a bit of luck.

I will be using hyper nurbs on the parts that warrant it etc..

I've used loft nurbs for the lower thick tube as it shape changing throughout it's length, and sweep nurbs for the other 5 tubes as their profile remains the same throughout their length.

McFly: Cheers, should get some more done today.

[Bob Marley]

Nice so far!!! Did you model this peices with the exact same dimensions as the real one?? So you wont have any bad surprises later on : ) Good Luck

[-R3D-]

Bob Marley: Thanks.. Yes mate, I have the bike right next to me so I can measure thing easily



I have actually modelled more of the frame which I'll update in a bit. But for now I just wanted to show you a weld test render.

Used a custom Hi-res displacement map as shown below to get these results..

Regards, Rob.

[I_AM_DAVE_COX]

Nice effect but that isn't how you would weld those seams.

[poopipe]

^^true that

I think the middle of the blobs wants raising up or something - the weld pattern is a bit too sharp
also, I've seen the welds on a zoo frame and they're nowhere near that regular



incidentally, have we met? i used to frequent TF til my knees said no (well, I say frequent - more hang around and make jokes about underage girls)

[StefanC]

Hey,

the bike looks good but I do want to point some things out about the welds, I followed a Metalworker study and got a diploma for it so I worked at companys that work with metal etc... anyway what I am trying to say is is that I know how weld seams look like since I have done it before and yours don't look right :P when welding u add metal to the existing contraption so instead of weld seams looking like it goes inwards is actually supposed to go outwards like a bump, the finger nail shape u did is correct though since thats the effect when molded metal stacks up + the movement u make with the welding torch. also the way u made it the pipes welded is wrong, here is a picture of how it should be and a weld model I did, its not perfect but it should be a bit bumpy and uneven like u see in the pic :

[-R3D-]

Hey all,

Yea I realise the way I "welded" them together isn't correct and it should be the u shape like StefanC FS said. It was only to see the weld "pattern" itself not the weld method.

Now, I've taken a closer look at the frame weldings and am currently in the proccess of creating another displacement map to try out.

poopipe: We may have met, not really sure. Erm, only significant thing you'd know me from was when I went to a big meet in 2007 in Southend. Ended up taking a dive off a rail mid move lol. But made it when I went back 3 months later. I was a stock rider back then.

Some photos of the welding on this frame:
(frame is alluminium by the way. I don't know if that makes a difference in the characteristics of the weld)





Will post back soon on the new displacement map.

Regards, Rob.

[I_AM_DAVE_COX]

Are you using nurbs?

[-R3D-]

Yes and no.. Im doing all this in Cinema 4D

Im using sweep and loft nurbs to do the frame tubes. I will be using sweep to make the base mesh for the welds.

I'm using poly modelling & booleans to make the CNC'd parts as C4Ds boolean modifyer is quite clean if used correctly.

I will be using hyper nurbs to model parts that will require it, like the handle bars stem, pedals and tyres etc.


EDIT: New weld. It looks better to me, but then I have been staring at it for ages so I don't know. Turning off AO also helped make the weld seem part of the metal and not just stuck on (See attatchments)


Regards, Rob.

[-R3D-]

Update:

Back to the modelling:

Bash guard mounting points with threads, and the bit the rubber sits in.

Rear bash guard mounting points.

Added a thread hole to the rear dropout.

Added Gussets that strengthen the front end.

Bottom

Added the 3 brake line fixing points (Used HyperNURBS for this part)

Full View. With sticker


Hope you like it so far

Forks will be next to model.

Regards, Rob.

[I_AM_DAVE_COX]

Nice man!

I have to say that you are modelling in an unconventional way but whatever, it works.