fussy with ramp sizes

[*Tats*]

Hey guys,
Im wanting to build a ramp. I have never hit a ramp before and am very keen to do so. I dont want a standard comp rampp cause i think it would be a tad big for a beginner. I have searched this forum for some plans but havent found any that im completely happy with. I dont want anything that is like heaps kicky, just something that will give you some fair height with out going huge. I'm looking for the height to be bout 6.5 - 7'. and the length around 18', no bigger then that. I'm looking for a constant radius, but am unsure. Any ne who has had similar problems in the past, and have solved them, could u send me your plans. Or just some plans around the figures. This ramp picture below is the sort of angle i want it to be, but a tad smaller in height and length.

[Shifty]

Here is a thing i used to do when i was thinking about plans:


Decide roughly on how big, wide and high you want the ramp. Then grab a compass, ruler, rubber, paper and Pencil.

You can get an idea of what the finished ramp will look by "downsizing the units" So 1 meter becomes 1cm. Or 1 meter becomes 2cm (if you want a bigger drawing)

So if you want a 2.3 meter high ramp, you would grab ya ruler and draw up a line that is 4.6cm long Vertically( downsize the extra cms later)

Then say if you want it to be 5 meters long. You would draw a line that is 10cm long at the bottom of the first line horizontally (again downsizing the extra 5cm later)






NOW, you have you 2 line on the paper

NOW. Grab your compass and ruler. Pick a random constant radius Ie. 7.7 meter constant radius for the purpose of this post.

the explanation of contant radius is. If you had a ramp that was 9 meters long, and you put a 9 meter constant radius on it would end up going to complete verticle. Thus having a smaller length than the constant radius the radius doesnt go completely verticle.

Now back to the thing. Grab ya ruler and take the compass. Open up the compass to 15.4 cm (7.7cm doubled) Now put the Lead on the start of the horizontal length you drew (going up the ramp) Draw a circle. Then rub out all the rest except for the line curving up your ramp.

There, that is what the dimensions and constant radius would look in real life, only bigger.

You can mix and match with constat radius' and lengths/hights. Remebering to downsize the units. You could change the radius to be kickier or melower. Your choice.

And then the good thing is you can wack in your side supports on the page then measure them. And that is how long they are going to be. Remebering to upsize from CM to M.

Now i hope you all understood that. And i understand if you couldnt be botherd reading it lol. Just my way of making your own ramp plans.

You can also grab a tape measure to check out the hight and length


Cheers

Shifty

[shirefmx]

i don't get posts like yours, you say you are a beginner and have never hit a ramp, yet you tell us all these particulars about how you want your ramp... what are you basing your sizes on??

if i were you i would get an aussie comp or rev1 and get it made so you can take the top off to make it around 6-7 ft tall, then when you get used to the idea of hitting ramps you can add the top bit back on and have a full size ramp.

or just get a full size

but if you are insistent on getting a smaller ramp made, then you should make one like this one below, i'm not sure of the exact measurments but it is a good ramp to learn on....

[shirefmx]

here's a rough sketch of what would be best in the long run

[Mungoman45]

Well I was bored and came across this and it just gave me something to do for an hour or so. More detailed shell design of Todds plans above for a changable ramp, using 40x40 steel. It is not a complete design, as there are not many supports in, including any of the face supports, but Meh, ya get the idea of how it would look. There was no length givin in the above pic, so i just made it a standard 6meters or so, with a constant radius of 9meters