CrawChuck Posted February 20, 2006 Report Share Posted February 20, 2006 I was wondering if anybody here had ever explored a centrifugal mold system for pouring soft plastics? Is anyone interested in such a concept? I didn't see any talk of it anywhere. So what would be the advantage for hand pouring? Well, it might allow pouring very thin areas or very small baits. It might speed up the process with less waste and it might be very easy and relatively inexpensive to build! I have had this on my brain for several years and am wondering if any of you have seen or had the same thoughts. Quote Link to comment Share on other sites More sharing options...
Monty Posted February 20, 2006 Report Share Posted February 20, 2006 i have thought the same as well. i think it would work, just haven't come up with the extra money to make one and try it yet. Monty Quote Link to comment Share on other sites More sharing options...
millsryno Posted February 20, 2006 Report Share Posted February 20, 2006 I'm not quite sure I know how that works or what it means. Can you explain more? Quote Link to comment Share on other sites More sharing options...
CrawChuck Posted February 21, 2006 Author Report Share Posted February 21, 2006 It could consist of a motor/belt or direct drive turntable which could hold circular, two-piece molds. The top half of the molds would need a center hole for receiving plastisol with runways to each cavity. Being centered under the pour spout of a heat pot or simply hand pouring with a pyrex cup, the mold is spinning while plastic is poured thus forcing it into the cavities. Seems in theory it would require less temperature or cooler plastic could be poured and still fill even very small spaces thus keeping a good color and less smoke. Maybe a safety factor on the good side not having a hand holding the mold to pour...I've burned a few fingers in my day!!! For experimental purposes I was thinking of building a prototype to use a hand drive from an idler gear from a bicycle or turn crank from a seed spreader. Seems like a worthy project to try. My past experience limited me to pouring craws over three inches just to keep the arms in proportion and get the stuff to flow into the claws and then there's my favorite worm which was a hybrid consisting of a thick ringworm body, Mann's augertail with a sassy shad tail tip. I see alot of talk on here about tubes and how ya'll make them by dipping and cutting the tails??? I had a tube mold which used an insert that was placed in the mold to provide the hollow. Razor blades were incorporated into the mold to provide the tail seperations. It was hard to get good pours without a very hot mold. I'm thinking for those of us who can't afford injection systems might benefit from something like a centrifuge. Quote Link to comment Share on other sites More sharing options...
TAE73 Posted February 21, 2006 Report Share Posted February 21, 2006 I have heard of guy that has a simular setup but does it with hot lead pouring jig heads. I havent seen the setup but would sure like to, would be interesting to see it in action. Quote Link to comment Share on other sites More sharing options...
CrawChuck Posted February 21, 2006 Author Report Share Posted February 21, 2006 I found a link to a commercial setup with some pics. Thought I had maybe invented something...oh well!!! http://www.tekcast.com/sixeasy.htm Quote Link to comment Share on other sites More sharing options...
dlaery Posted February 21, 2006 Report Share Posted February 21, 2006 If you put glitter or salt in your plastic is will be all on the outside of your bait. When I say outside, I mean the side the fartherest away from the center. Centrifical force will push the heavy stuff to the outside. I don't think it will work. Quote Link to comment Share on other sites More sharing options...
consenko Posted February 21, 2006 Report Share Posted February 21, 2006 Hi guys, I have also toyed with the idea of building some machines for pouring. I can build the one you described with the centrifuge and I also had an idea for an automated tube making machine. I also had an idea to build a press to cut tube tails. ( I own a machine shop and can build all this equipment.) The only problem with the centrifuge idea is that someone has to make the molds, unless there is some way we can modify the existing ones on the market now. I can probably build the molds myself but I think that they will be too expensive. I might consider building this equipment if I thought I could sell a few. By the way I also think I can build a machine to pour regular molds either 1 or 2 piece. Tell me what you think. Quote Link to comment Share on other sites More sharing options...
CrawChuck Posted February 21, 2006 Author Report Share Posted February 21, 2006 I didn't consider the centrifical force pushing the glitter and such to the far ends but now I can imagine it happening. I never did add salt in any of my pouring so have no experience with it. Might still try a cheap prototype with the seed spreader gear and a plaster mold just to satisfy my curiosity. No way I can afford some of the molds and tooling discussed here so I'm stuck with whatever I can cob together and make work! Quote Link to comment Share on other sites More sharing options...
Plastic Man 1 Posted February 23, 2006 Report Share Posted February 23, 2006 If you put glitter or salt in your plastic is will be all on the outside of your bait. When I say outside, I mean the side the fartherest away from the center. Centrifical force will push the heavy stuff to the outside. I don't think it will work. This is exactly what will happen. Quote Link to comment Share on other sites More sharing options...
Plastic Man 1 Posted February 23, 2006 Report Share Posted February 23, 2006 If you put glitter or salt in your plastic is will be all on the outside of your bait. When I say outside, I mean the side the fartherest away from the center. Centrifical force will push the heavy stuff to the outside. I don't think it will work. This is exactly what will happen. Quote Link to comment Share on other sites More sharing options...
CrawChuck Posted February 23, 2006 Author Report Share Posted February 23, 2006 So have you guys tried this? Not doubting you...just wondering if it has really been tried with different spin speeds, lower temperatures and material consistencies? Seems like if there was a constant flow coming into the cavity and the rotation was stopped when filled there would be a consistant amount of salt/flake throughout the lure. Heck, I'm going to have to try it and I will say you told me so if it goes like you told me...unless somebody says they already tried variables mentioned with no success. Inquiring minds want to know Quote Link to comment Share on other sites More sharing options...
robbor Posted March 1, 2006 Report Share Posted March 1, 2006 With metal it has a much higher weight so the spinning forcer acts much more. You could use the same basic mold but put in small vents and then just inject it and wait with out spinning, then do it again. You would need to come up with a large injector or pressurized injecting pot(thrift store pressure cooker). Quote Link to comment Share on other sites More sharing options...
robbor Posted March 1, 2006 Report Share Posted March 1, 2006 Can I cast other materials besides metal? * Yes. Although zinc, tin and lead alloys are the most common materials cast using the spincasting process, other materials such as wax, resin, and thermoset plastics can also be used. These materials can be used in the same silicone rubber molds used for casting metal. Quote Link to comment Share on other sites More sharing options...
