stephen Posted June 18, 2011 Report Share Posted June 18, 2011 Ok so my 2 part mold turned out near perfect, its the first one I have ever made so I am contributing that to beginner luck. I read a little on this site where you guys are using a turkey injector to install the soft plastic, got one. The only way I can get a perfect pour is to fill the back end of the injector, install the push rod, flip it upright, push all the air out, then inject. I quickly realized you have to do this lightning fast in order for the plastic not to clog up the hole. I have tried numerous times to simply pour the plastic. I have opened up the pour hole in the rtv as large as i can 1.5" on the outside and the pour hole to the mold is as large as i can go (about the size of a pea) I have cut an air vent next to the pour hole which seems to work fine. Part of the problem (I think) is the bait is so long 5.5", when i "pour" the bait and open up the mold it doesn't get all the way to the tips of the tail. Injecting is the way to go. Is there a trick to getting the air out of the cylinder? Do i need to order a custom injector, I tried to pull the material through the tip like you would fill up a hypodermic needle but it just clogged the spout and ruined my timing..........Help......thanks Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted June 18, 2011 Report Share Posted June 18, 2011 You need to cut a vent at the tip of the tail. Dave Quote Link to comment Share on other sites More sharing options...
stephen Posted June 18, 2011 Author Report Share Posted June 18, 2011 Its a forked tail, i already have two vents, each about the diameter of a toothpick, I pour from the tip of the nose down, I created an air vent right by the pour spout where I later attach the eyes ( I can cut the remaining plastic off). So make the air vents larger?. I just came up with an idea, tell me what you think. I took a 22magnum shell and drilled out the back end leaving the rim. cut off the small plastic hole from the syringe and jb welded the casing to the tip of the syringe. Now maybe the hole spout is large enough I can draw the hot plastic into the syringe limiting air bubbles?????? Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted June 18, 2011 Report Share Posted June 18, 2011 Its a forked tail, i already have two vents, each about the diameter of a toothpick, I pour from the tip of the nose down, I created an air vent right by the pour spout where I later attach the eyes ( I can cut the remaining plastic off). So make the air vents larger?. I just came up with an idea, tell me what you think. I took a 22magnum shell and drilled out the back end leaving the rim. cut off the small plastic hole from the syringe and jb welded the casing to the tip of the syringe. Now maybe the hole spout is large enough I can draw the hot plastic into the syringe limiting air bubbles?????? I see no point in making the tail vents larger, tooth pick size is already larger than required. You modification sounds good and has a chance. Please be careful though, always assume that something will go wrong and make sure you are well protected. You would do better to invest in an injector that was designed and built for the job. Keep us posted of progress. Dave Quote Link to comment Share on other sites More sharing options...
stephen Posted June 18, 2011 Author Report Share Posted June 18, 2011 I have a 99% success rate in the category of "anything can go wrong" If I'm not mistaken I led the league last year in "Oh crap's" Thanks for the help will let you know..... Quote Link to comment Share on other sites More sharing options...
stephen Posted June 18, 2011 Author Report Share Posted June 18, 2011 Well long story short it worked. The 22 shell was not long enough and I kept getting an air pocket half way up. So I called a friend and he had a telescoping metal automotive magnet that was broken. I cut off about 3 inches of the metal tubing, attached it to the syringe so when I poured the bait I was injecting better than half way down, continued injecting while slowly pulling the syringe out and I knew I pretty much had it when I saw plastic coming out of all the air vents. Pulled the mold apart and success, God bless America. Vodkaman educate me. The commercial injectors, are they designed to draw the plastic through the tip, or do you fill them from the back end????? Quote Link to comment Share on other sites More sharing options...
Frank Posted June 18, 2011 Report Share Posted June 18, 2011 Glad you had good results. I believe all of the current injectors fill from the tip, at least all the ones I have. Having done alot of injecting and had a few that just did not fill right seams to me that the flow is the most important. If it flows to slow it cools to fast and you get a cavity that is incomplete. There is another injector that some get from Napa auto parts that seams to be OK if you change the o rings to high heat ones. Maybe you can post a pic in the gallery when you get time. Frank Quote Link to comment Share on other sites More sharing options...
Jig Man Posted June 18, 2011 Report Share Posted June 18, 2011 stephen I have some homemade single molds that have to be injected. I get cathetor injectors from a vet and use a brass tube in the end. I always oil the rubber cap on the plunger so it slides easily. The injectors are good for a few dozen runs then I discard them as I fear they will fail. Here are a couple of pics of what I have done. Quote Link to comment Share on other sites More sharing options...
powerworm Posted June 18, 2011 Report Share Posted June 18, 2011 jigman where are you located? reason i ask is i keep seeing those same lil crappie tubes on craigslist back where i used to live. the guys company is named shooger booger baits and he makes the same lil jigs Quote Link to comment Share on other sites More sharing options...
Jig Man Posted June 18, 2011 Report Share Posted June 18, 2011 (edited) jigman where are you located? reason i ask is i keep seeing those same lil crappie tubes on craigslist back where i used to live. the guys company is named shooger booger baits and he makes the same lil jigs Powerworm I'm in the Show me state 3 rock throws and a good spit west of John Ls main store. We have some mfgs at Truman (Slab Hunters and Slab Busters) and it is a 200 mile round trip plus a 3-6 month wait for customs. Last custom order took 5 months and was wrong when it go here. So I make my own now-----NO WAIT. Edited June 18, 2011 by Jig Man Quote Link to comment Share on other sites More sharing options...
powerworm Posted June 19, 2011 Report Share Posted June 19, 2011 thats cool i grew up in springfield and spent slot of time between stockton, table rock bull shoals and LOZ growing up and as an adult. hope to be back there by the time my 6 month old starts school!! when it happens we will have to hook up and talk baits for sure!1 Quote Link to comment Share on other sites More sharing options...
