However, there's still plenty of room for buying a blank from anywhere, correctly identifying the spine and setting the guides so they make the line follow the blank for an Overhead reel.

 

Spinning reels are less of an issue given everything is underneath the rod.

 

That's one area that I overlooked when looking at the Acid wrapping thing. You can use less guides which means that you're not impinging the natural action of the blank. That explains why some guys are using it on their lighter rods and really liking 'em.

Starting to make sense for me now, seems logical and explains the next question I had

(Why the line is kept so close to the blank at point of transition to underside)

There is such a wealth of knowledge on this forum........And

 

Thanks Big Fish Bob blank technology is a whole nother kettle of fish on its own.......

Sorta eludes to what you are getting from the likes of synit 

When they are involved in blank testing and manufacter right through to the finished rod.

A lot more to it than buying a blank of mudhole and tying up some guides and fitting a seat.

The spine is a result of the perpendicular edge of the "flag" running along the centreline of the mandrel as the "flag" is wrapped around the mandrel the perpendicular edge under the wrap becomes a bump and after curing and post-cure finishing becomes the spine.  You never see the bump because the centreless grininding operation after curing removes it.

 

Blank makers may be able to cause the spine to wrap around the blank instead of running straight along it, by not laying the perpendicular edge of the flag along the mandrel spine......maybe some do? Perhaps making the flag shape as an isoceles triangle or something other than a right angle triangle.

 

The really tricky thing would be to wrap the mandrel such that the spine goes one way and the line stress goes the other to cancel each other out.

 

I'm now even more convinced that Acid wrapping is done more for reasons of personal preference and aesthetic quirkiness than real performance improvement. I haven't done the math, but very roughly a turning moment is created by a force applied at a distance from the blank centre. The small distances involved, 10-15 mm lead me to supect that twisting torque is sweet FA.

 

I'd go on to suggest that in most cases when people experience rods trying to twist themselves out of their hands, is because the rod has been built off the spine which as somebody else said is extremely common with shop bought rods.  

 

The conclusion, a rod that handles really nicely from a really good custom rod builder probably does so because it's just been built well, rather than being an acid wrap.

 

Correct.

 

The Dog wrote: If the spine of the rod is the most crucial thing to consider when building then what effect does it play when you wrap the load around the blank i.e not following the spine ?

If don't incorrectly the bumper guide could most certainly cause more problems than it solves. Thats why its so important to keep the line as close to the blank without touching as you can as it transitions from the top to the bottom.

 

The Dog wrote: Also does the acid/spiral wrap put a twist type load into the blank when load is applied through the guides?

 

It could if not done correctly. This is where guide choice (ie size and frame)

 

The Dog wrote: If in fact it does twist the blank slightly when loaded what effect does this have on the action and life of said blank?

 

If you get it wrong you can most certainly bugger the rod up and lessen it's strength!

 

The Dog wrote: Is there a blank that has been specifically designed for acid/spiral wrapped guides i.e the spine is built around the blank along its length? Very interesting subject this.

]]> Fri, 02 Dec 2011 14:49:51 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1039359&title=acid-wrapping-why#1039359 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1039255&title=acid-wrapping-why#1039255 Author: The Dog
Subject: 72900
Posted: 02 Dec 2011 at 12:37pm

I still dont get the acid/spiral wrap thing.(Other than removing the twist sensation when you have the rod loaded) 

I thought the spine/backbone of a rod blank ran down one side in a straight line? (not a rod builder)

If the spine of the rod is the most crucial thing to consider when building then what effect does it play when you wrap the load around the blank i.e not following the spine ?

Also does the acid/spiral wrap put a twist type load into the blank when load is applied through the guides?

If in fact it does twist the blank slightly when loaded what effect does this have on the action and life of said blank?

Is there a blank that has been specifically designed for acid/spiral wrapped guides i.e the spine is built around the blank along its length?

Very interesting subject this.

 

]]> Fri, 02 Dec 2011 12:37:42 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1039255&title=acid-wrapping-why#1039255 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038959&title=acid-wrapping-why#1038959 Author: Panga
Subject: 72900
Posted: 01 Dec 2011 at 10:41pm

Red Hunter wrote: If you guys are interested have a look at this , by a bloke called Denis Brown , known on this forum by some  http://www.360tuna.com/forum/f74/spiral-not-spiral-12165/index3.html  it will help understand a lot .

Hells bells that is a in depth discusion, thanks for the link]]> Thu, 01 Dec 2011 22:41:16 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038959&title=acid-wrapping-why#1038959 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038878&title=acid-wrapping-why#1038878 Author: Red Hunter
Subject: 72900
Posted: 01 Dec 2011 at 9:26pm

If you guys are interested have a look at this , by a bloke called Denis Brown , known on this forum by some  http://www.360tuna.com/forum/f74/spiral-not-spiral-12165/index3.html  it will help understand a lot .]]> Thu, 01 Dec 2011 21:26:39 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038878&title=acid-wrapping-why#1038878 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038819&title=acid-wrapping-why#1038819 Author: Jet_ski_fisher
Subject: 72900
Posted: 01 Dec 2011 at 8:16pm

Ahhh i see.. now i know why.. funky name alright ]]> Thu, 01 Dec 2011 20:16:16 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038819&title=acid-wrapping-why#1038819 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038795&title=acid-wrapping-why#1038795 Author: Kenshin
Subject: 72900
Posted: 01 Dec 2011 at 7:31pm

Hard_core_gamer wrote: Why do they call it acid wrap rods?

Coz the guy that came up with it was thought to be on 'acid'.

]]> Thu, 01 Dec 2011 19:31:07 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038795&title=acid-wrapping-why#1038795 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038786&title=acid-wrapping-why#1038786 Author: Jet_ski_fisher
Subject: 72900
Posted: 01 Dec 2011 at 7:21pm

Why do they call it acid wrap rods? ]]> Thu, 01 Dec 2011 19:21:38 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=72900&PID=1038786&title=acid-wrapping-why#1038786