Snap a line!

Last Updated on Friday, 29 May 2009 15:30 Written by Laura Crichton Thursday, 28 May 2009 18:00

Snap a chalkline down the length of the PVC. This will serve as a guide when it comes to drilling the holes, and keep all the holes roughly on the same side of the PVC.

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Measure!

Last Updated on Saturday, 06 June 2009 15:55 Written by Administrator Thursday, 28 May 2009 18:11

If you are going to be putting an end cap on for the trellising system, mark 3 inches from the top of the PVC. All measurements will then go from here. If you are not planning on doing the trellis, skip this steps and all measurements will be made from the end of the PVC. I highly recommend not skipping this step...even if you're not using the trellis now, you may want to try later!

 

Measure and mark for the drilling of holes. Please see "Considerations" for how far apart to space your holes. Remember to stay on your chalk line!!

 

For those who would like to get all math geeky, here are some equations from www.mathworld.wolfram.com.  I have no idea what they mean, but they may help if you need to figure out specifics.

The helix is a space curve with parametric equations

			(1)
			(2)
			(3)

for , where is the radius of the helix and is a constant giving the vertical separation of the helix's loops.

The curvature of the helix is given by

and the locus of the centers of curvature of a helix is another helix. The arc length is given by

The torsion of a helix is given by

so

which is a constant. In fact, Lancret's theorem states that a necessary and sufficient condition for a curve to be a helix is that the ratio of curvature to torsion be constant.

The osculating plane of the helix is given by

The minimal surface of a helix is a helicoid.

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Drill!

Last Updated on Thursday, 28 May 2009 18:39 Written by Administrator Thursday, 28 May 2009 18:29

Drill holes with the 5/8 drill bit. Remember to stay on the top (the chalkline) and drill straight up and down!! Do not apply too much pressure, or the PVC may crack and take out a large chunk! Let the drill do the work and do NOT force it.

 

Drill all the way through the other side. The pex will be sliding through here.

Now you have something resembeling a very large flute! Go back with the drill and make sure your holes are round, but do NOT take off too much PVC. The PVC will be holding the Pex firmly in place, so you do not want this to be a loose fit!

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Assemble!

Last Updated on Tuesday, 30 November 1999 00:00 Written by Administrator Thursday, 28 May 2009 18:40

 

 

Start threading the tubing! Select a hole that is roughly in the center and thread roughly half of the tubing through it. It may be tempting to start at one end and work toward to the other, but I've found this to be the easy way!

Keep on threading!!

 

Spend a little time adjusting the loops, and it should look something like this!!

 

There! Almost done!  Just a few more simple steps! (and they are S.I.M.P.L.E)

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