12mm 8'x4' on trailer - exciting stuff
In terms of lumber, I sourced countless planks, all more or less 2"x4" of various lengths, around the farm that I reckon I could use instead of the standard 2"x4" suggested by Dahlen/Pukeboy. Screws and tools were plenty too. So far so good.
The next step was to design the sideboards. I used the string method for drawing the gradient on to the first sheet of plywood and drew the rest of the sideboard outline with a long ruler.
I opted for a 6 1/2' - 2m gradient, as all websites on the topic seem to suggest that is a mellow gradient, suitable for 3' - 1m ramps. The string method is well-explained in the Dahlen/Pukeboy manifestos.
I also spent a bit more time measuring out the exact space in the barn and revised my figures slightly:
Total length: 6.40m
Flat: 1.80m
Each platform is about 0.60m long (ca. 2') - enough to do a rock fakie with trucks all the way to coping and still have breathing space
Height from ground: ca. 1m
Vertical height, coping to flat: ca. 0.90m (3')
Width: 2.44m (8')
Transition gradient ca 2m (ca 6 1/2')
Hopefully it'll just fit (probably a bit snug, but I wanted to use all possible space to ensure a decent length of ramp).
I proceeded to cut out the first sideboard with a jigsaw. I then traced the the cut-out on to the remainder of the sheet and cut that out too. I repeated this process a few more times to leave me with 12 sideboards, all roughly identical. As I'm using thinner plywood than that recommended, I plan to have the outer sides of the four quarterpipes I make to be double layers. The insides will become double once I put the quarterpipes together. To allay confusion, I should add that the Dahlen/Pukeboy method suggests building 4 quarterpipes that, when combined, will make up the two main quarterpipes in each end of the ramp.
The next step was to design the sideboards. I used the string method for drawing the gradient on to the first sheet of plywood and drew the rest of the sideboard outline with a long ruler.
I opted for a 6 1/2' - 2m gradient, as all websites on the topic seem to suggest that is a mellow gradient, suitable for 3' - 1m ramps. The string method is well-explained in the Dahlen/Pukeboy manifestos.
I also spent a bit more time measuring out the exact space in the barn and revised my figures slightly:
Total length: 6.40m
Flat: 1.80m
Each platform is about 0.60m long (ca. 2') - enough to do a rock fakie with trucks all the way to coping and still have breathing space
Height from ground: ca. 1m
Vertical height, coping to flat: ca. 0.90m (3')
Width: 2.44m (8')
Transition gradient ca 2m (ca 6 1/2')
Hopefully it'll just fit (probably a bit snug, but I wanted to use all possible space to ensure a decent length of ramp).
I proceeded to cut out the first sideboard with a jigsaw. I then traced the the cut-out on to the remainder of the sheet and cut that out too. I repeated this process a few more times to leave me with 12 sideboards, all roughly identical. As I'm using thinner plywood than that recommended, I plan to have the outer sides of the four quarterpipes I make to be double layers. The insides will become double once I put the quarterpipes together. To allay confusion, I should add that the Dahlen/Pukeboy method suggests building 4 quarterpipes that, when combined, will make up the two main quarterpipes in each end of the ramp.
A few sideboards cut out
The rest of day one was spent cutting planks to size for the cross joists. I found a whole heap of oak planks that were of a suitable size. Oak is very hard wood and it took a while to saw enough cross joints for the first qaurterpipe.
Day one drew to a close, and I went to bed praying that this project will work.
The rest of day one was spent cutting planks to size for the cross joists. I found a whole heap of oak planks that were of a suitable size. Oak is very hard wood and it took a while to saw enough cross joints for the first qaurterpipe.
Day one drew to a close, and I went to bed praying that this project will work.
No comments:
Post a Comment