Building a xst1024f Rainshadow. Using concept method ,from the choker guide to the tip of the rod is 43 inches. Using little more than 4 inches between each guide it will take 10 guides . The total length of the rod is 8 1/2 ft using 9ft for calculations.
Using the tip top and 3 running guides the total amount of guide comes out to 14 guides does that sound right?



Edited 2 time(s). Last edit at 06/23/2013 02:44PM by Maryann Cohen.

Not sure why you would use 9 feet for calculations if the rod length is 8 feet, 6 inches. Something is amiss here.

Can you provide the length of your handle to the front of the reel seat, and the diameter of your reel spool?

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For instance, a rod 7 feet in length is going to require about 8 guides
plus a tiptop. On half foot sizes, say, 7 and 1/2 feet, round up to the next full
length. So a 7’6” rod would require about 9 guides plus a tiptop. sorry for the confusion Tom

Generally, yes. But on very long rods you might choose to use progressive spacing on the running guides which would reduce the total number of guides.

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length of handle to the front of reel seat 10 3/4 inches diameter of spool 2 inches thanks

Okay, if you set the choker guide at 54 inches from the reel, adding in the roughly 11 for the distance to the front of the reel seat/reel, you're left with 37 inches to cover with the running guides.

I'd probably choke down in 4, and then use about 6 running guides for a total of 10 plus a tiptop. Give or take a guide perhaps.

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Tom did I do the math wrong? How did you come up with the new calculations? I would like to learn how to do it with out bothering you.
Im going to run into the same problem with a Rainshadow xst 1143 Using the same reel and probably the same handle Any suggestions on this one ? thanks for your help

Maryann,

Tom's method is to place the choker 27 times the spool diameter (based on statistics for a variety of spinning blank/reel combinations optimized for casting distance) from the reel face (in center of oscillation). The choker is the first of the smallest guides, and you place the reduction guides so the outside of the guides fall on a straight line between the center of the spool or reel shaft and the choker.

Personally, I select reduction guides that give a progressive spacing, check them with a static test, and use the static test to place the running guides. I also tend to err on the side of adding an extra guide rather than pushing the lower limit, but I typically use micros when I can and will go to Minimas or Ti frames when larger guides are needed to keep the weight penalties in check.

Joe



Edited 1 time(s). Last edit at 06/23/2013 03:50PM by Joe Vanfossen.

[www.rodbuilding.org]

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Hi Joe
. Its not the reduction guides that gave me the problem. Its the running guides that were way too many for the rod. Not unless I measured wrong. I checked both in inches and in metric several times.
My question to Tom was how he arrrived at the new calculations so I can learn from my mistakes.
I agree with your reply thanks

You don't have to put the running guides at 4 inch intervals. You could use 5, or use a progressive spacing of 4, 5, 6, etc.

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My apologies its my mistake sorry abt all this

Check out the way to Static Test a guide train
An 8 1/2 ' rod I would start with 9 guides plus tip From the tip first guide about 4" then for the next 2 or three 1/4" then after that about 1/2" space - Just to start 4 - 4 1/4 - 5 - 5 1/4 Then add 1/2" instead of a quarter inch

Then after placed A static test will show you if you need another or not

OR

You can start with a spacing chart from whoever say St Croix MudHole And static test from there

Bill - willierods.com



Edited 1 time(s). Last edit at 06/23/2013 04:53PM by bill boettcher.

Maryann,

No worries, nor need for an apology. There are lots of ways to skin the cat when it comes to spacing the running guides. You can use equal spacing, progressive spacing by adding say 1/4" or 1/2" to the distance between each pair of guides starting at 4"-5" for the distance from the first guide to the tip. You can use the static test to let the blank tell you where to put them, or you can use a spacing chart. In addition to the ones mentioned by Bill, Batson has spacing recommendations for each blank model. Find something similar, and that can be a great starting point as well.

A progressive spacing model that would work well for 6 running guides (including choker) would be this (gaps between each pair of guides):

5"+5.9"+6.8"+7.6"+8.4"+9.2"=42.9"

A second option with an extra running guide (7 including choker):
5"+5.4"+5.8"+6.2"+6.6"+7"+7.4"=43.4"

A third option with yet another running guide (8 including choker):
5"+5.1"+5.2"+5.3"+5.4"+5.5"+5.6"+5.7"=42.8"

The trick is to just sit down and tinker with the numbers. As much as I love calculations and numbers, being an experimentalist, I like to do things experimentally, hence my bias toward the static test. Not to mention, it's quick and easy to do.

Joe



Edited 2 time(s). Last edit at 06/23/2013 07:07PM by Joe Vanfossen.