hinge ideas please
3 replies to this topic
Posted 30 May 2009 - 09:27 PM
Looking for the right hinging system for making swimbaits i ve used eye hooks and thay have good action but want something that is a liitle tighter so there is not a huge gap if anyone can help would be most appreciated thanks.
Posted 30 May 2009 - 11:19 PM
Hi Johnny- There are too many variations to explain/describe them all, but if you go here and start reading: Tackleunderground - Search Results
then fire a few questions I am sure there will be heaps of answers.
I done a 'search' for you, start with the 'thread titles' with 'HINGE' in them and work back.pete
Posted 30 May 2009 - 11:49 PM
Swimbait hinges have been a very busy subject over the last year or so, with lots of new and innovative ideas. As I see it at the moment, here are the alternatives:
1. Eye to eye - you have already tried this one and realize the down side, ie, the gap. It is generally constructed from an open eye and a closed eye. It can also be manufactured from twisted wire, this would reduce the gap slightly, but also make fitting more tedious. Not suitable for small baits, due to the screw eye intrusion into the segments, making hardware fitting very awkward.
2. Eye to pin closed eye or twisted wire, pin can be anything from brass tube to bicycle spokes. Issues need resolving about brass, as wear is a possibility. This method allows a closer joint and the ability to dismantle the segments for repair and/or top coating. Saves space on the pin side, for other hardware.
3. molded door hinge this method is more for molded applications, were the hinge form is molded into the body. The pin is inserted through the molded hinge as the final operation. This method eliminates all gaps and is a very tidy and strong solution. Although mainly used for molded baits, it can be made from wood, but labor intensive. Hardware space is maximized, no intrusion into the segments, beyond the pin.
4. metal hinge using pre-formed, off the shelf metal or plastic hinges. This requires a split body construction. A tidy solution as for No3, but with a few issues. Weight and corrosion, for the metal hinges, durability for the plastic hinges. Also, the hinge pin is generally off centre, not a major issue, but none the less, an issue. Hardware space is a problem on small baits.
5. manufactured hinge as per No4, only hand made. See recent tutorial from Diemai. Advantages are that you get to choose a suitable material, manufacture to the ideal size and solve the offset pin issue.
6. DNA hinge a recent innovation from Hazmail (Pete). Formed from twisted wire, it performs similar to a door hinge. Good stability, very light and easy to manufacture. Again, space intrusion issues.
7. double pin I introduced this design recently. Good space saving, no intrusion into the segments beyond the pins. Good flexibility of movement, enabled by having two pivot axes. Can be disassembled for service and painting. More vertical play, due to two hinge axes, but this was not an issue.
8. Kevlar material any type of material, but only Kevlar has been discussed. Good hige flexibility and vertical stability. Some issues have been raised as to its fatigue life. Other problems are keeping the top coat from permeating the material fibers.
9. chord or wire similar to No7, only using a nylon type material chord or 7 strand wire. I believe the chord to be very suitable, with good fatigue properties, but the wire is suspect, but not tested.
I am sure I missed a few, if so I apologize. Feel free to append.
Posted 31 May 2009 - 12:35 AM
Dave -that's what I wanted to say, but the thought of typing all that was a bit daunting:eek:
Also the 'Velcro webbing is O.K, would be better on a larger lure and have been looking at Dyneema rope (used on winches/yachts/climbing), this stuff is strong too, same strength as steel cable at a fraction of the weight see - OKoffroad - 4x4 Recovery Gear - News 'N Views - 4x4 Accessories -Click top right "winch rope info" the go to the bottom of page and click "click here for technical info"
I would like a few strands or this stuff to try out - might have to cut some from the new winch rope!!!!!!!!!!!!!.
Looks like it is similar stuff to braided line, they make bullet proof vests out of it, but I don't think it is 'Kevlar'.pete