Vodkaman

TU Member

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188

1. Lexan and Weight

JD - The spherical domain enclosed by the tall man's spell of 4πr³/3 is an intriguing and fascinating subject. It is the simplest shape and yet the most difficult to carve. I have actually experimented with spherically derived shapes and the resulting actions are interesting. If you pull a sphere through water you get a pure spiral action. I do most of my cranial development work while sleeping, so you could say that I work in an alternative universe Dave
2. Lexan and Weight

The forces are at the edge and rear face of the lip, but let's not make this a science class pop-quiz. Dave
3. Lexan and Weight

Often to understand a function or concept you have to take the idea to extremes. I offer up a ball and dinner plate analogy. The spherical ball can be forced through the water with very little effort, but the flat plate requires a relatively HUGE effort to move through the water even though the diameters are the same. It is natural to think that water resistance is caused by the weight or force of the water trying to get out of the way of the object, the water pressing on the lip as it is pulled through the water. The actual truth is a most unnatural concept to grasp which is why
4. Lexan and Weight

JD - I don't even know how critical or effective the chamfer is, but builders who have worked with many materials claim that the thinner fiber boards are the most effective, and this fits with theory. I like 2mm polycarbonate for all my lures. I only build small lipped lures 3" length. I don't bother with the chamfer. If I was selling and looking for a little bit extra then I would chamfer for sure. Dave
5. Lexan and Weight

Lip function – to create the vortices that cause the lure’s waggle action. It is fact that a sharp edge causes a stronger vortex than a blunt edge. This would suggest that a thin lip would be better, BUT, the knife edge can be achieved with a chamfer. Bending – lip materials do bend. The bending is a function of material thickness, free length, width and the mechanical properties of the material. How much bending is acceptable? Is some bending desirable? Weight distribution – obviously the thicker the lip then the more the COG of the lure is affected. The thicker lip dra
6. Lips for baits

I agree with Exx1976. if you can manufacture a lure body, ballast, harness, twisted eyes and all the rest, then why should lips be such an issue. Using someone else's pre-cut lip is a bit like the 'tail wagging the dog'. Dave
7. Selling Baits Online (and in general I suppose)

Good plan. I liked 10 at a time. The advantage is that you become more skilled at each operation, with an appropriate improvement in time. This will sound 'nerdy' but you need to do a time and motion study on yourself. You will be amazed with the time that can be picked up with secondary movements like tool placement; by placing the wire cutters in the same place on the bench every time, then no time is lost searching for the tool. By placing the tool on the bench at a certain angle, the tool can be picked up and ready for use without the need for a juggling act. If you record the re
8. UV Curing Problem

Mirrors are a good thing, they do help with light distribution. BUT, it is not just about lighting up the lure, it is all about the distance the light travels, it is about the light strength. If the distance doubles you might think that the strength halves. You would be wrong. The strength reduces to 1/8th. Over-reliance on mirrors could be the problem, something to consider. Dave
9. Selling Baits Online (and in general I suppose)

Good comments. Keep searching for that bit extra that will make your lure more desirable than the rest. I know, it is not easy chasing rainbows, but not impossible either. If you don't chase the rainbow then you are unlikely to stub your toe on the pot of gold Dave
10. Selling Baits Online (and in general I suppose)

People do not buy hand made baits because they are cheap, they buy because the lure is unique and of the highest quality. Your bait has to gain a reputation for catching MORE fish than the chunk of plastic on the shelf at Walmart. Yes, you need a pro angler on board who believes in your lure. A Kevin Van Dam is not going to get the job done, people will not attribute his success to the lure but to the man himself. I would take my lure to a struggling pro, get him to try the lure, prove that it is a fish magnet, then you can both retire on the lure's success. Only my opinion; cha
11. Selling Baits Online (and in general I suppose)

My charge rate is significantly higher, which is why I never entered the lure market. Dave
12. CNC Router for crankbaits

For a mechanical duplicator; the cutter has to be capable of removing the material effortlessly from the stock on a single pass. Stock removal is about 1" per minute depending on the mechanical design. A standard router bit is the worst tool for the job in my opinion. A ball end router is better, but it will blunt quickly and unless you sharpen your own, it will be a VERY costly item to replace. I do not see a Dremel cutter keeping up with the volume of material being removed or coping with the cutter depth. Dave
13. CNC Router for crankbaits

It is or will be a digital version of the mechanical duplicator, were the master is a digital 3D model. I believe the solution is only two axes (but I will leave this to the CNC engineers to define); rotation and cutter direction. It seems simple to me, I cannot believe it has not been done digitally before. Dave
14. Through Wire Methods

Band saws are relatively safe, but I certainly understand the expensive argument. The belt sander is a good choice for the first major tool investment, you will enjoy this and will find many benefits beyond fishing lures. My belt sander is the same style as JDs (above). I did actually make a jigsaw cutter for Lexan. It is featured in this video at 2'41". Not as good as a bandsaw but it worked. Dave
15. Through Wire Methods

1 - a band saw and a belt sander would make all your Lexan problems go away. But if you do not plan to tool up a man-cave then the only alternative that I see is a sanding disk attachment for a regular power drill. 2 - the swivels idea will work, but your problem is going to be drilling the hole down the center of the body. This can be achieved with a drill press, but without a press it would be a difficult task. I like the slot along the back of the body and drop holes down for the hook loops. The slot is easily filled and tidied up. Another solution is to start with two halves
16. Pre calculating lead weight?

There is no precision pouring lead into a hole. No matter how accurately you calculate the hole depth, you will be lucky to get withing 2 grams of your target weight. In addition, the hole surfaces are charred, there is no adhesion, just a loose slug of lead. I pour my lead cylinders in a wood mold, and then trim to achieve the exact weight that I require. If you want a spreadsheet, then write down a specification of what inputs you want to make and outputs you expect, pm me and I will construct the sheet for you. Dave
17. Production Efficiency Help

2Marshall8 - I freely admit that I am well beyond personal experience here, but you do not require experience to apply logic. Plastic is an insulating material, in other words, it does not transmit heat easily through the bulk. When you switch on a Presto pot, the heating element raises the temperature of the plastic in contact with the surface of the pot that is being heated. Because the heat transfer properties of the plastic is low, it cannot pass that heat energy to surrounding plastic fast enough and overheats, even though the surrounding plastic is cool. Either you stand o
18. PB European Perch

3Lb is a VERY nice fish. The biggest I ever saw was 1Lb from a bomb crater pit on the Wirral, UK. Before and after that day the water only produced 4oz perch. Dave
19. Plastic tubing to cover hook points?

Neoprene tubing. It is one of those things that are hard to find when you want it but occasionally come across when you don't. If I see it when out shopping I will always buy a meter or two. Dave
20. Screw Eyes

Big Epp - We are here for those questions and concerns, this is the whole point of the TU site. Dave
21. Heavy Joints

I like double pin joints, this gives maximum freedom to the hinge as one joint has two pivots. Strength-wise, the load is distributed along the length of the pin, perpendicular to the pull direction, you would have to rip the lure in half to break it. There are so many joint solutions and I cannot say that any are particularly bad. Whether a joint will fail or not all comes down to your design; screw-eyes too short, area around pin to thin, inadequate sealing, etc. Hinges are all about free movement, even the slightest resistance to movement will cancel out the action. Rear facing V-
22. Screw Eyes

Shouldn't be a problem as you NEVER let ANY resin product touch your skin. If you can smell it then you need ventilation, mix it outside or use a fan. Dave
23. 2021

It has been a very difficult year. It will be no surprise to you that I have applied my nerd qualities to COVID-19. I can present any statistic or graph that you could possibly request, go on, test me. The tide has turned. The light at the end of the tunnel is eliminated. Just a little more restraint and we will be rid of COVID-19. Please stay safe, and I wish you all a better 2021. Dave
24. Rod Eye Calculator

I have expanded the utility to include inches. I have added two columns to show the distance to nearest eye from ferrule. Dave
25. I'm an idiot

I caught a little grebe once. It scampered across the surface and dived down and took my bait. It stayed under until I got it to the net so I had no idea. I felt so bad! Dave
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