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Find the spine on a four piece
Posted by:
John Wright
(---.om.om.cox.net)
Date: July 17, 2015 10:09PM
How do you determine the spine of a 4 piece rod. Do you determine the spine of each segment, which is what I would expect, or is there another way. What about the lower sections. I have not had too much luck finding the spine on these sections, but I feel it probably isn't too significant for these sections since most flex is in the upper half.
Thanks. Re: Find the spine on a four piece
Posted by:
bill boettcher
(---.nwrknj.fios.verizon.net)
Date: July 17, 2015 10:13PM
I put each section on my rod wrapper rollers and turn If they have a little bend I mark the top when the bend is UP then put each section together Bill - willierods.com Re: Find the spine on a four piece
Posted by:
Tom Kirkman
(Moderator)
Date: July 17, 2015 10:27PM
The bottom two can be difficult. You should determine them individually, of course, and sometimes all you can do on those lower couple are to use the straightest axis, assuming that the outside curve will be in line with the effective spine. It may not be, but it will suffice, particularly considering the overall unimportance of the spine anyway.
Once you find the spine of each section, assemble and recheck. The overlap of the ferrules will shift it a bit and you can remark the overall spine at that point. It'll only move a few degrees. ............ Re: Find the spine on a four piece
Posted by:
Buzz Butters
(---.dhcp.fdul.wi.charter.com)
Date: July 18, 2015 02:15PM
From Tom's post "Once you find the spine of each section, assemble and recheck. The overlap of the ferrules will shift it a bit and you can remark the overall spine at that point. It'll only move a few degrees."
Yup just the way we teach it in the Mud Hole rod building class. Check each piece, mark and assemble, check again. Some of the grips sections might not flex to allow spine to be located, in those cases don't worry about it. Wrap the ferrules (mandatory, you didnt ask that part but I thought I would post it anyway) and you should be good. Buzz Re: Find the spine on a four piece
Posted by:
Mike Bradford
(---.bois.qwest.net)
Date: July 20, 2015 06:43PM
Like the above said. Spin each section. I then put 2 sections together, and spin them, and then the whole rod. I used to put the ferrule end on a table, and then flex and roll the rod section until I felt the "kick". A couple of years ago I did this and ended up with a shattered farrule end. I don't know if it was a defect in the blank, or not. I now put the tips on the table, and flex rod section. I haven't had a problem since. Mike Bradfrod R.M.B. Fishing Rods Nampa, Idaho Sorry, only registered users may post in this forum.
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