In the last post we looked at creating a four sided box that could be used as a bucket or planter box. The idea is to build a wooden cask or barrel by eventually increasing the number of sides or staves required to help the cask stay together and hold water without using glue. We build two versions. The first has straight sides and creates a 4x4x4 cube. The second is a little more complex and creates the same cube but reduces the bottom of the cube to 3 inches.

What would it take to make a six sided box of the same design? If we go to our on-line angle calculator we see that we need to cut the angle at 30 degrees rather than 45 degrees. The big question becomes how wide each side or stave should be.

We want the entire piece to fit into a 4 inch square so we need to use geometry to calculate the length of each board. Two things that we know from the design are that three of these sides need to fit into four inches. This gives us The total width of the three sides combined. We also know that the total height of the three sides combined needs to fit into two inches. From this we can calculate the length of each board.

There are a few things to note. First the middle piece is parallel to the centerline. From this we can create a right triangle from the inside edge cut. We know that the thickness of the wood is 3/4 of an inch so we know one side of the triangle. We also know the angle of the resulting cut to be 60 degrees because we move the 30 degree part with the table saw. Using an online geometry assistant we can calculate the length of the wood remaining from the cut. If we draw a straight line at 90 degrees to the centerline we know the angle is 30 degrees and the height of the triangle is two inches. From this we know the angle and adjacent and want to calculate the hypotenuse.

We can calculate the Hypotenuse with one of the following equations:

SOH… |
Sine: sin(θ) = Opposite / Hypotenuse |

…CAH… |
Cosine: cos(θ) = Adjacent / Hypotenuse |

…TOA |
Tangent: tan(θ) = Opposite / Adjacent |

H = A / cos(angle). We know that A is 2 inches and the angle is 30 degrees. It is important to realize that Excel uses radians so the outer length of the wood (hypotenuse) = A / cos (angle / 180 * pi()) = 2 / cos(30/180*pi()) = 2.3094. This is perfect because we can use this to cut the width of our board. We need to cut it 4 inches high with a 90 degree cut. We then reset the table saw blade to 30 degrees and cut one edge then set the blade guide to make the second cut 2.31 inches wide. The outer edge to outer edge will be 2.31 inches long. The inner edge will be (2 – 3/4) / cos(30/180*pi()) or 1.443 inches.

The next exercise is to build the tapered bucket where the top is four inches and the bottom is three inches.

The angle that we used for the four sided box translates here as well. The top of the box ends up being 2.31 inches. The bottom of the box can be calculated by using the 1.5 inch centerline with a 3/4 inch thick wood at a 30 degree angle. This calculates out the width of the bottom of the taper to be 1.732 inches. Using the on-line calculator the blade tilt should be 29.7 degrees. This results in a cut of six pieces that should fit together.

The resulting physical boxes look like

Note that we use blue painters tape to hold the pieces together. We are close to being a round so a metal band might or might not hold the box together. We are getting close. Next up, an eight sided box is the next project. We might need to increase the size of the box because the width of each board is getting a little small when you try to cut it with a table saw. We will probably try to fit this into a 8 inch square because it basically just doubles all of the measurements.

order viagra 50mg pills – cheap sildenafil 50mg cheap viagra sale

cheap viagra sale – buy sildenafil buy viagra 100mg generic

buy viagra tablets – sildenafil 150mg canada order viagra sale

generic prednisolone 40mg – cialis buy online cost tadalafil 10mg

generic prednisolone 10mg – how to get cialis buy cialis 20mg online

order prednisolone 10mg without prescription – gabapentin 800mg brand cialis pills 5mg

augmentin 1000mg tablet – cialis brand tadalafil 10mg pills

order augmentin online cheap – order cialis 10mg sale pfizer cialis

order augmentin for sale – buy cialis 20mg sale cialis pills

buy bactrim 480mg without prescription – viagra sale sildenafil us

buy bactrim 480mg for sale – viagra 150mg pill us pharmacy viagra

bactrim uk – viagra 100mg cost order generic sildenafil 150mg

brand cephalexin – oral erythromycin 500mg order erythromycin pills

cephalexin online order – cleocin 150mg canada erythromycin 250mg for sale

generic cephalexin 250mg – cleocin 150mg pill erythromycin tablet

buy sildenafil 50mg – ivermectin 3 mg oral ivermectin ebay

buy fildena 100mg generic – ivermectin pills buy ivermectin for humans australia

fildena pill – buy fildena 100mg generic ivermectin oral

budesonide sale – buy antabuse sale purchase antabuse generic

budesonide online buy – cheap cialis 10mg oral antabuse

budesonide online order – buy disulfiram sale antabuse cost

buy cefuroxime 250mg sale – buy cefuroxime 500mg for sale tadalafil 40mg sale

cefuroxime uk – buy cialis 10mg pill order cialis 20mg pill

buy ceftin sale – order robaxin 500mg sale buy tadalafil without prescription

ampicillin 500mg drug – cipro 1000mg generic buy cialis 40mg for sale

order ampicillin 250mg online – order ampicillin 500mg without prescription generic tadalafil 20mg

acillin canada – order cipro generic order generic tadalafil 5mg

generic amoxil 250mg – levitra medication buy vardenafil 20mg generic

order amoxil 250mg for sale – buy generic levitra buy generic vardenafil

buy amoxil 250mg pills – levitra 20mg without prescription vardenafil 10mg over the counter

ivermectin drug – buy ivermectin for humans order vardenafil 10mg for sale