jacobsbaits Posted April 27, 2010 Report Share Posted April 27, 2010 I'm working on a new 3 1/2 oz. hand injector and I'd like to hear any ideas that anyone might have to make a perfect injector. My first batch of hand injectors were made for my buddies that used Netcrafts, but they broke them as quick as they could order them. So I made them some simple but durable ones that they couldn't break. I use my own designed injection molding machines, and I've never given much though to hand injectors. Quote Link to comment Share on other sites More sharing options...
bass100 Posted April 27, 2010 Report Share Posted April 27, 2010 First and foremost you can make the best injector on the planet but if it doesn't fit the other mold makers molds then it wouldn't be much use to many of us. Most of the new injectors out there can be used in Del's, Bear's, and Basstackles molds. It needs to be able to lay on a hot plate to get warmed up, easily cleaned, easy to use, safe, and of course affordable. Quote Link to comment Share on other sites More sharing options...
jacobsbaits Posted April 28, 2010 Author Report Share Posted April 28, 2010 My injector tip design will fit all mold openings from 1/4" to 3/4" diameter First and foremost you can make the best injector on the planet but if it doesn't fit the other mold makers molds then it wouldn't be much use to many of us. Most of the new injectors out there can be used in Del's, Bear's, and Basstackles molds. It needs to be able to lay on a hot plate to get warmed up, easily cleaned, easy to use, safe, and of course affordable. Quote Link to comment Share on other sites More sharing options...
DDSBYDAY Posted April 28, 2010 Report Share Posted April 28, 2010 I'm working on a new 3 1/2 oz. hand injector and I'd like to hear any ideas that anyone might have to make a perfect injector. My first batch of hand injectors were made for my buddies that used Netcrafts, but they broke them as quick as they could order them. So I made them some simple but durable ones that they couldn't break. I use my own designed injection molding machines, and I've never given much though to hand injectors. Welcome to TU. I have seen your injectors. The insulation is a nice addition. The perfect injector-Safe, durable, holds heat, easy to load and clean, with interchangeable sized tips. (Priced right doesn't hurt either) Good luck. I think you will get good advice here. Quote Link to comment Share on other sites More sharing options...
powerworm Posted April 28, 2010 Report Share Posted April 28, 2010 i have been using bears hand injectors since last spring and i have never had to warm mine up, i just turn the stirrers off on the pots and cycle thru the plastic a few times and presto its warmed up and they dont stay warm long they get hot when you go thru 5-10 gallons of plastic on a slow day!! Quote Link to comment Share on other sites More sharing options...
DDSBYDAY Posted April 28, 2010 Report Share Posted April 28, 2010 i have been using bears hand injectors since last spring and i have never had to warm mine up, i just turn the stirrers off on the pots and cycle thru the plastic a few times and presto its warmed up and they dont stay warm long they get hot when you go thru 5-10 gallons of plastic on a slow day!! Thats a lot of plastic for a slow day. You might want to invest in an injection molding machine and then go fishing or golfing in the afternoon. For me, hand injection is to pour quality,clean baits on a small scale. I make custom jigs but some of them need a trailer. The plastic part is secondary and I don't want to have to try to purchase something that is in my mind. Large quantity is not the issue. The injector is a tool. If I change tires all day I would have an impact wrench. If I get a flat once in a while I need a jack and a tire iron. However, I do want them to work when I need them. Quote Link to comment Share on other sites More sharing options...
Piscivorous Pike Posted April 28, 2010 Report Share Posted April 28, 2010 The tip needs to be quick on and off for cleaning, for switching plastics for the small guy that has one injector. It should be useable with a heat mit or glove All the current injectors use a syringe arrangement an take two hands. Why not use a gun arrangement of the injector handle, not unlike a caulking gun. Going in increments so you can easily judge amounts for core shots or laminates. Each squeeze meters so much. One hand operation too. I think Cabelas has a jerky making gun similiar in concept. Quote Link to comment Share on other sites More sharing options...
Frank Posted April 28, 2010 Report Share Posted April 28, 2010 My injector tip design will fit all mold openings from 1/4" to 3/4" diameter I have one of yours and the thing about the tip sounds good but( there is always at least one of those) the hole is tooooo small and cools plastic to fast. The only way I could get yours to work well is to pull the plunger out and fill then inject. The insulater seems great till it gets hot plastic on it and melts. I know that this sounds kinda crazy but if you want to build a better injectoryou have to know what you are up against. Buy a Bears and a Bass Tackles then you will know what a real smooth injector is. Two differant brands but they are both a pleasure to use. By the way your molds are real nice and like that you are here now to add to the knowledge that is shared here. Frank Quote Link to comment Share on other sites More sharing options...
daveh Posted April 28, 2010 Report Share Posted April 28, 2010 hey jacob, i bought one of your molds on ebay. you said your molds will fit most injectors on the market. i have bears injector and it does not fit. the hole is so small on your mold i can`t use it, do yourself a favor. do like bear del and basstackle does and make your molds to fit there injectors that way your molds will fit most injectors. its that easy. you make a nice mold and i love your crappie baits but its worthless if you can`t use it. nothing persoal and i would buy more molds from you if they fit the injectors on the market. and welcome to the site dave huebner Quote Link to comment Share on other sites More sharing options...
TBaits Posted April 28, 2010 Report Share Posted April 28, 2010 You do have some good looking molds. I use a Bears injector and Bears and Basstackles molds. When I get more $ and the molds can be used with Bears injectors, then I will sure try your molds - have been admiring them for some time. Quote Link to comment Share on other sites More sharing options...
Fish On! Posted April 28, 2010 Report Share Posted April 28, 2010 Recently I have been inquiring about injectors under another another post, titled "Injectors Blues", where you received some constructive criticism. Maybe a larger thread design would prevent some failures. Making it idiot proof is always a good designing guideline. I think, I want a small workable tip for some of my designs. Is it feasible to have having an electric heating blanket with an outer insulting surface that wouldn't melt? Or possibly a resting holder which is electrically heated that includes multiple tip capacity might be a good alternative. A one-hand-operation on a small injector sounds like the way to go. Possibly the three ring design, if the tube is wide enough to shorten the stroke. The ratcheting one-handed-gun sounds good, but maybe the simpler the better. Would the design work with two color laminates? I would rather choose quality and ease of use, over most everything else. The thicker, beefy'er, heavier and larger the better, over thinner, skiny'er, lighter and smaller. This appears to be the rule for tools, unless special purpose functionality dictate otherwise. But, what do I know? I don't even own an injector. But rest assured, if when I do and there is any possible way to misuse or break it, I will find my way in short order! I believe "Murphy's Law" was written by one of my ancestors. If you need some one to field test it, keep me in mind. By the way, I have health insurance and my own worker's comp! Good Luck. Quote Link to comment Share on other sites More sharing options...
jacobsbaits Posted April 29, 2010 Author Report Share Posted April 29, 2010 Bears two color tip will fit my molds quote name='daveh' date='28 April 2010 - 04:27 AM' timestamp='1272446838' post='145173'] hey jacob, i bought one of your molds on ebay. you said your molds will fit most injectors on the market. i have bears injector and it does not fit. the hole is so small on your mold i can`t use it, do yourself a favor. do like bear del and basstackle does and make your molds to fit there injectors that way your molds will fit most injectors. its that easy. you make a nice mold and i love your crappie baits but its worthless if you can`t use it. nothing persoal and i would buy more molds from you if they fit the injectors on the market. and welcome to the site dave huebner Quote Link to comment Share on other sites More sharing options...
nova Posted April 29, 2010 Report Share Posted April 29, 2010 I'm working on a new 3 1/2 oz. hand injector and I'd like to hear any ideas that anyone might have to make a perfect injector. My first batch of hand injectors were made for my buddies that used Netcrafts, but they broke them as quick as they could order them. So I made them some simple but durable ones that they couldn't break. I use my own designed injection molding machines, and I've never given much though to hand injectors. Is it possible to make an injector body that can be adjusted to handle say 3 oz to 6 oz? Maybe a 6 oz. tube with extra plungers at differant lengths. Just a thought. www.novalures.com Quote Link to comment Share on other sites More sharing options...
Piscivorous Pike Posted April 29, 2010 Report Share Posted April 29, 2010 Caulking gun injector.... Hmmmm.... I like it. I think I'll make one Except I don't think I'll make the whole thing. Just make an injector that fits in a caulking gun. Make the plunger so it locks onto the plunger of the gun as you drop it in. Then folks can be as cheap or as extravagant as they want with their actual gun to drive it. Now to go find me some nice teflon o-rings. you are right on. I have seen small guns, maybe my bear or even cajun will fit it. Please post your results. I want to copy it. Even some vetrenarian instruments may fit the bill here. Quote Link to comment Share on other sites More sharing options...
daveh Posted April 30, 2010 Report Share Posted April 30, 2010 jacob i have bears 2 color injector and the tip does not fit. but i will try to drill your hole out. it does not have to be to much bigger for it to work. i can send you the tip so you can see how much bigger you need to make your port for that tip. almost fits. Quote Link to comment Share on other sites More sharing options...
nova Posted April 30, 2010 Report Share Posted April 30, 2010 The trouble I can see with a ratchet type caulking gun is that once you squeeze the trigger you are committed to the volumn that "click" is going to produce. If it's too much; too bad. In other words if it takes a click and a half to fill the cavity; for example; the rest that comes out is waste that you will have to deal with. This will slow you down, which is not what you want. www.novalures.com Quote Link to comment Share on other sites More sharing options...
Piscivorous Pike Posted April 30, 2010 Report Share Posted April 30, 2010 The trouble I can see with a ratchet type caulking gun is that once you squeeze the trigger you are committed to the volumn that "click" is going to produce. If it's too much; too bad. In other words if it takes a click and a half to fill the cavity; for example; the rest that comes out is waste that you will have to deal with. This will slow you down, which is not what you want. www.novalures.com You are correct, but it can be worked out. I have a caulk gun that goes down with a click but can be pulled back , the back pull has infinite, not notch, adjustment. It could be a friction system that is infinite adjustment forward and backward like a glue gun. Quote Link to comment Share on other sites More sharing options...
Frank Posted April 30, 2010 Report Share Posted April 30, 2010 Two things. First is the notch is a push point, not a fixed point of advance. You do not have to pull the trigger all the way to the handle. In fact those of us who find ourselves using a caulking gun fairly often never do that. We instead squueze to meter and wipe a nice uniform bead into the seam. Second is that not all caulking guns use a notch. Some are a friction or cantilever bind to push the plunger rod. Most of those actually release the rod when you let off the trigger. This lets off any pressure in the chamber which may still be releasing media. Which brings us to my original comments about people being allowed to choose how extravagant they want to get with their gun purchase. They can get a cheap $1.49 gun or a decent open frame pressure relief (dripless) $20 gun. Yes there is a difference. You can tell this post is from some one that uses one alot, Good info. Let me add one more to the list, my cordless chaulking gun at 100 bucks. And yes it is real easy to use. One thing about this is if you hesitate even for a few seconds the tip will start to cool and the dreaded tip bugger will be in the next shot. Frank Quote Link to comment Share on other sites More sharing options...
