Bigman

I basicaly did all the modelling as other people were busy with paperwork parts of the project, and within the group i am the most proficient in using solidworks. My course title is, BEng (hons) Offroad Vehicle Deisgn, Bascialy engineering but with modules such as vehicle technology, offroad vehicle design etc. In my first year we used to spend 4-6 hours a week either driving or taking apart/re-assembling tractors, landrovers, tanks etc it was loads of fun. This year (2nd) has not be so much practicle but alot more maths although we did recently break the steering on a Tactica (google it) armoured vehicle, lets say that the college people were not happy Adam

I steered clear of the idea of a diff, seeing what the terrain is like which we will be traveling on (mud, grass, up, down and cross slopes) i felt a solid rear axle would be fine. I also thought of the idea of using a shaft with 2 freewheels then a chain to each wheel form each of th efreewheels, but you have to remember using that process would mean that unless you were in a straight like only one wheel would be driven, and that would always be the slowest wheel (inner wheel when turning a corner....) I also had problems with the chain clearing the seat, and i will have to add in some bits to hold the seat up higher in the final build, this was not neccesary with this milestone as the seat is something we will not be making it didn';t have to modeled overly well (although Guy got carried away) And yes, we are most deffiantly be making this! (read a couple of posts above, it explains the whole project things) Adam

Um, basicaly you can build anything to get across a set course, it has to pass some scrutineering where it has a climb a slope of 15degrees and stop/hold on the slope, then decend a 20degree slope and also stop/hold (hence having the vee mounts on the forks rear facing), it must have a turning radius of 3m maximum, and it must be human powered. If wanted you can try the extreme test where an up slope of 35 degrees and a downslope of 40 degrees. Once the vehicle has passed the scrutineering the vehicle wil be put into a timed race around a set track on the colleges offroad course at college, this consists of one rider riding across the set course, then 2 team members carrying the vehicle back to the start (around 50m) and the the last team member riding back across the set course, winner is in the fastest time etc, top vehicles will be taken to the Royal Show (agricultural) The vehicle can have any number of wheels apart from 2 (so no bikes) 3 wheels would be simple but we get slightly better marks if we are more inventive, also things like making the forks instead of sourcing them from scrap bikes etc scores extra marks. We get a budget of £200 to buy parts like cassettes, wheels, cranks etc. and things like steel, chain and cables are free from the college stocks Um, that is it basicaly, can't think of much at the moment. Adam

I know the disc is on the wrong way around, but when we do the brake test on eht vehicle it is holding it on an upslope, and hence the disc rotor would be better in that direction, and the caliper is mounted like that as it was the only way it could get it to fit correctly so that it would work with my chassis design....... RR-trials: The brake is still only a VERY basic model, it has no pistons etc, if i wanted/had the time i could easily create one with all the working components, all to scale too Adam

Right as part of the 2nd year of my Offroad Vehicle Design degree one of our group projects is to design and build ahuman powered offroad vehicle (no bikes allowed!) Over the past 2 days ish i ahve spent around 17hrs on solidworks to complete the 2nd milestone of the project, this was to produce a full 3d working model of the chosen design for the vehicle. The model had to consist of a high detail model of each component which has to be made by ourselves, items such as cranks, brakes etc only had to be modeled to a basic level, but i got abit carried away. (see brake and rear chainring) Out of the 17hrs, 10hrs was spent modelling each seperate component and then assembling them around the chassis, one of our group members had to leave for something and i basicaly had to completely re-model all his stuff, i also had to completely alter the chassis i was given to work with my drive train. The last 7hrs was spent creating the 2d drawings for each of the components, this made today a VERY long day, along with having to throw together some calculations and research to also hand in, In total there was 30ish 2d drawings, and a following 30pages for the related report...... The products of my labour (missing a few bits as i left them on my space at college), the steering works (i was up to gone midnight last night getting it to!), everything turns like you would expect it to New pics, here are some of the full built vehicle, we passed scrutineering meaning we can now start the competition on thursday! The bike with me driving whilst conducting the drawbar pull test: And when weight testing to see if the bike was within regulation weight, came in at 49kg which is very light compared to some of the other vehicles Competition day on thursday, there will be a vid to follow!! Enjoy. Adam

You may laugh, Tunni did it to a CK classic Adam

From what i can see is that there are not realy many advantages realy, yes it means you don't have to run a mech but then again with a tensioner such as the 74kingz you will not snap any hangers, 26 mod does not have the vast choice of hubs that standard 135mm frames do, for example 135mm you have pro-2's cheap kings etc for 26 mod (110mm) it is either echo freehubs (not heard much great about them) CK BMX hub (£400ish) and profiles (die on stocks due to different forces) So i would go with a standard 135mm frame, MANY more options, also it would have a much higher re-sale value Adam

Please tell Alex, i want to know how far it is from me Adam

WOOOOOOOOOOOO, where is it? Adam

That looks very nice. Glad to see someone else who is using vee's, are those home made adapters? Adam

Wow, glad to see that the wheel i drilled and built is still going strong Bike looks awsome dude Adam

Weather looks shite dude......... I will see what i feel like laters......... Adam

The frames that Ali and Gav are going to be riding will be prototypes for a new ashton competition style frame (from what i have understood) and as far as i am aware the new justice is pretty much the same as the previous just with a few alteration (not sure what though) Adam

hehe, mine haven't frozen yet, being that they are vees Adam

Echo forks are a deffiante go ahead, they are awsome, i have not seen any echo forks brake there........ For bars, i am nore sure...... Adam

HAHA, you both saw my koxx rim on sunday Echo all the way Adam

Go for the new Echo, tis what i have just ordered, and from what i have heard is that they are AWSOME Adam

Wow, for a minute then i thought i had clicked on New Members Chat wooooo go trials-forum tape measure.......... Adam

Tis a cool little vid there dude Deffinately getting used to the stock. Adam

Twas an AWSOME weekend, realy enjoyed it...... Killed my rear rim on sunday, but i am now one of 3 to make the massive static to back wheel Adam

I saw this on OTN AAAAAAAAAAAAAAAAAAAAGES ago, tis a fake guys Adam

Gender: Male/ Female Age: 0 – 10 11 – 14 15- 19 20 – 24 25+ Occupation/ Employment Status: layabout/student Annual household income: 0-15k What are your hobbies? (State more then one if necessary): Bike trials Dirt jumping/light freeride Do you participate in any extreme sports, or have done? (Please list) Bike trials Dirt jumping/light freeride What is it you love about your sport/s? – (if you don’t participate in your sport anymore then state why) Being around mates Enjoying myself Do you enjoy watching Extreme sports? I.e. Bmx, Surfing, MTB, skating, Breakin’ etc YES Have you ever been injured or hurt in anyway through being apart of your sport? – (If so state what happened and what injury you sustained) Not realy, only cuts to my shins. Which channels do you regularly watch? C4 BBC1 BBC2 ITV Adam

The boss thread size is M10 x 1.25 which is a b*****d of a size as it is not a very common size, fortunatly my grandad has most things so i was able to get it. If you get stuck i have some home made ones here i would lend you to get you going....... Adam

Is there any info on the net about them? Adam

WOOOOOOOO Oli see you there Adam