jigman2 Posted January 2, 2009 Report Share Posted January 2, 2009 Can anyone tell me where I can get som sprue's? Thanks ahead of time Jigman2 Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted January 3, 2009 Report Share Posted January 3, 2009 I don't really understand the question. The sprue, as I understand it is the cone shaped depression, designed to take excess plastic during the pour, to combat shrinkage, but the important part is to pour the plastic down the centre of the pour hole, without touching the sides. Dave Quote Link to comment Share on other sites More sharing options...
jigman2 Posted January 3, 2009 Author Report Share Posted January 3, 2009 Yes Vodkaman you are right, but you have to have the sprue in place when you pour the mold so it it there when the material has set. Do you understand that? I don't really understand the question.The sprue, as I understand it is the cone shaped depression, designed to take excess plastic during the pour, to combat shrinkage, but the important part is to pour the plastic down the centre of the pour hole, without touching the sides. Dave Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted January 3, 2009 Report Share Posted January 3, 2009 Can anyone tell me where I can get som sprue's? Still confused, you cannot buy sprues. The sprue is a shape you have to form into the mold. Dave Quote Link to comment Share on other sites More sharing options...
Basseducer Posted January 3, 2009 Report Share Posted January 3, 2009 Jigman2, The sprue is the result of pouring the mold. You fill the entire cavity (fill hole) to the top of the mold then when you de-mold the sprue is the part you cut off of the end of the bait. Hope this helps. Quote Link to comment Share on other sites More sharing options...
jigman2 Posted January 3, 2009 Author Report Share Posted January 3, 2009 Vodkaman I need them to put in my media so that when It dries I can remove the sprue's and have a hole to pour the plastic into to creat a bait. Too much vodka or what? Quote Link to comment Share on other sites More sharing options...
weighinalimit Posted January 3, 2009 Report Share Posted January 3, 2009 What you're asking isn't a "sprue" as such, it's a model of a sprue hole to add to the moldmaking right? If so, you can use just about anything you want for it. Wax, clay, carved piece of soap, etc. I use a propane torch to heat an area on a plastic 1 gal milk jug till it's clear then push a plumb bob into the clear area & hold for a few seconds, forms a perfect plastic cone that can be cut to the desired length & makes a good pour hole for the mold. Quote Link to comment Share on other sites More sharing options...
jigman2 Posted January 3, 2009 Author Report Share Posted January 3, 2009 I guess I wasn't asking the right question, LOL sorry vodkaman, what I wanted was (a mold for a sprue) not a sprue. I thank you all for the info and am sorry I was not clear, LMAO on what I wanted. Please forgive me for my frustration, as I should not take it out on any one here you are and have been so much help to me in the past. Well I guess I will have another one. Thanks for clearing up what I really was looking for. As always the injunity on this site is remarkable. Thanks:whistle: Jigman2 Quote Link to comment Share on other sites More sharing options...
HJS Posted January 3, 2009 Report Share Posted January 3, 2009 I guess if they can make donut holes then they can make sprue holes too. I've tried several approaches. Mostly I drill out a smaller pour hole first then drill out a larger reservoir (sprue) hole using a drill press with mold halves bound tightly together. Works fairly well and I've done many this way. I've also tried making reservoir holes from Sculpy clay then bake them in an oven until hard. (see pic) After baking I stick a toothpick in the side of each for easy insertion into the first layer of DPW. Then remove toothpick before pouring the second layer. That worked ok too but I pretty much made the sprue holes on a whim and shoulda spent more time fine tuning the Sculpy clay before baking. Then my lovely daughter gave me a sack of fireworks for my birthday. She really knows how to please her redneck Daddy. I was outside shooting bottle rocks at the chickens (without a helmet... but at least I went outside) when I noticed they came tipped with a really kewl removable nose cone (or heat shield) that would make a perfect mold for making sprue holes outta plaster, Sculpy or whatever I can pack inside and let get hard. I had kind of a eureka moment in the backyard. Haven't gotten around to working with them yet but I think they hold great promise at making uniform sprue holes. Quote Link to comment Share on other sites More sharing options...
Bogbaits Posted January 3, 2009 Report Share Posted January 3, 2009 Get yourself some modeling clay,roll out some balls of clay and form them in cone shapes,cut them to the size you need,thats all i use,they work perfect,no need to make a mold for any,make sure you get the modeling clay,comes in colors,does not dry,it works better,it stays wet,you just pick it out the mold and reuse time after time. Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted January 3, 2009 Report Share Posted January 3, 2009 No problem Jigman2, I probably did have one too many vodka's, as I forgot what a sprue was, thanks to Basseducer for reminding me. I think I am getting Altzeimers, I make appointments to see the doctor, but keep forgetting to go. I use Prochallengers method with modelling clay, for the sprue shape, vents and locators. Well I am relieved that we got that one sorted out. Dave Quote Link to comment Share on other sites More sharing options...
Angler310 Posted January 3, 2009 Report Share Posted January 3, 2009 try a golf tee to start. you will have to cut it down to size and modify the holes after your mold sets Quote Link to comment Share on other sites More sharing options...
MTfishingrods Posted January 4, 2009 Report Share Posted January 4, 2009 I can sell ya some sprues. How much money do ya have, and what else do ya need?. Quote Link to comment Share on other sites More sharing options...
Richard Prager Posted January 4, 2009 Report Share Posted January 4, 2009 Just melt a piece of worm onto the end. Then widen the hole after it sets up. Quote Link to comment Share on other sites More sharing options...
