Yes, as Grant Darby just said, this is The Simple Spiral method, The "Bumper Wrap", as described by Colby & Kirkman. That is, space the guides as you normally would with the guides on top. Flip all except the butt guide. Then insert, at a 90-degree offset, a low-frame, small-ring bumper guide halfway between the butt guide and the next guide. -Done!
If you have read some of the other Posts in which Tom Kirkman has addressed this very question, TK has referred to this methodology as a convenient means to communicate the technique, using a commonly agreed upon method. (Space normally, then flip.)
You MAY find it beneficial on lighter rods to examine the guide layout a 2nd time to see if it is possible to eliminate one of the forward running guides. It may be worth saving the weight of one guide here on a lighter rod. That is up to you. ...
I just wanted to interject the fact that now that the line guides are UNDER the rod, there is no concern about using the guides to act as the supports of a suspension bridge that has to hold the line "ABOVE" the rod blank. ... Now that the forward guides all are UNDER the rod, like a SPINNING ROD, then you just want to have a very good STATIC LOAD DISTRIBUTION. That design situation is just as well suited to more of an "equal angles" or "equal intervals" spacing method, IMO.
Again, a 2nd look at the static loading may not be necessary. But for some rods and some rod-builders, it may be worthwhile as another level of fine-tuning your Bumper Spiral rod.
If this is a heavy-duty rod, where actual drag settings may exceed ~ 8#, then I would strongly recommend a 2nd Static Test after the "flip".
In one instance, one of our own RBO Fellows had a problem with the guide geometry on deep bending. In one guide, (I think it was the guide after the Bumper), on deep bending, the line was no longer touching the guide ring. It was no longer carrying any of the line-load. ... You guessed it, ... When he used scales to set his drag at ~ 15# for his fishing trip ... KaBAM ... the rod snapped somewhere in the middle, because the effective distance between the guides was now ~ 24" instead of ~ 12", and the rod caved in.
Just pay attention, whenever mixing guide layout methodologies, to what are the limits and the assumptions and the applications of the original methods.
-Cliff Hall+++, Gainesville, FL-USA*****
Re: Spiral Wrap Breakage ... Billy Vivona ... Oct. 17, 2005 09:31AM
[
www.rodbuilding.org] "Tom - I know I typed a lot and it's all over the place, I just want everyone to be clear - I never said the rod which broke had the Bumper system, I said when I tested the Bumper system on a similar blank, the same thing happened. " ETC, etc, etc.
Edited 2 time(s). Last edit at 03/21/2006 04:03PM by Cliff Hall.
