joelhains Posted December 12, 2014 Report Share Posted December 12, 2014 I've been having some issues shooting laminates using Bass Tackles Twinjector. I can't get seem to get both colors of plastic the same temperature. I cook my plastic in the microwave using measuring cups. I might be able to cook the plastics together at the same time and then I might get one good shot but I am unable to maintain the temperatures consistently. I'm thinking of setting up with presto pots. I would need two of them obviously. My problem with that is I would like to find an option that hold less volume of plastic. are there smaller electric pots with temp control? any other tips to getting the plastic to be at equal temps? Quote Link to comment Share on other sites More sharing options...
Frank Posted December 12, 2014 Report Share Posted December 12, 2014 How are you keeping the heat up when the cups are just setting there? I use two microwaves and adjust as needed. Doing the two colors in the same one could still cause a temp difference. Quote Link to comment Share on other sites More sharing options...
joelhains Posted December 12, 2014 Author Report Share Posted December 12, 2014 That's the problem...I can't keep the heat up. The cups cool to quickly. Then after reheating the temps are not the same. Quote Link to comment Share on other sites More sharing options...
Bassinfool Posted December 12, 2014 Report Share Posted December 12, 2014 If you have a griddle lying around you could set your cups on it to keep them warm once you get them up to temp in the micro. Quote Link to comment Share on other sites More sharing options...
joelhains Posted December 12, 2014 Author Report Share Posted December 12, 2014 I tried that and it really didn't make much difference. Probably doesn't help that I pour out in my unheated garage and it's winter. I guess I should just make the move to presto pots Quote Link to comment Share on other sites More sharing options...
Bassinfool Posted December 12, 2014 Report Share Posted December 12, 2014 Damn, I didn't even notice you're in Ohio when I suggested that. In that case, no, I don't think that will help your cause with it being that cold outside unfortunately. One other thing I can suggest before you make the jump completely would be to bring all your stuff inside that would benefit from not being cold. Molds, injectors, pyrex cups, plastisol, etc just to keep it at a decent room temp within the house. Quote Link to comment Share on other sites More sharing options...
Jig Man Posted December 13, 2014 Report Share Posted December 13, 2014 I don't have the twinjector I have 2 individuals with a blending block. I quit using pyrex and went to norpor silicone cups. I heat them at the same time. When I put my injectors into the block I can feel which one is flowing better and put more pressure on the other one to balance out the shoot. It works for me. Quote Link to comment Share on other sites More sharing options...
joelhains Posted December 15, 2014 Author Report Share Posted December 15, 2014 (edited) I cook in 2 cup measuring cups so usually 2 cups of each color. I'll have to try manually injecting both colors. I can just as easily remove the piece on the twin jector that connects both handles. Edited December 15, 2014 by joelhains Quote Link to comment Share on other sites More sharing options...
Frank Posted December 15, 2014 Report Share Posted December 15, 2014 With your lat statement I can see why you are having trouble. You don't have the heat mass to keep it hot for long. But with a griddle it has to help some. There is no magic way to keep plastic hot. If you use presto pots with two cups in it will be hot but after a couple of shots there won't be enough plastic in there to suck up. I stop using my presto pots when get to about two cups maybe more. Quote Link to comment Share on other sites More sharing options...
Flippin 416 Posted December 15, 2014 Report Share Posted December 15, 2014 I have the Twinjector system from BT as well.....I'm also in Ohio. One thing you might want to try is to back down to mixing one cup of each color. Two cups seems to be allot of plastisol to try and heat up at one time. I use one microwave and pyrex cups just as you are. I do notice a temp difference of the two separate cups as well. I have a digital infrared thermometer that I use to check the temps. When they get close to 350 I will remove the cup that is closer to 350 and heat the cooler one. It normally takes 20-25 seconds to get them close to a balanced temp that way. This has worked well enough for me. My garage is heated. When it gets really cold (like last winter) I wrap my injectors and molds in heating pads to help warm them up and maintain temps once they are warm. 1 Quote Link to comment Share on other sites More sharing options...
fishon-son Posted December 15, 2014 Report Share Posted December 15, 2014 I live in Michigan and use a non heated shed in the winter to play around..i have a griddle to get the molds up to temp a micro for the plastic and two pyrex cups for the plastic I have the plate up full 450 I think preheat my cups on the griddle molds and injector to..heat plastic up in cups in the micro at same time get the gloves on mix the plastic well keep heating it and mixing to get the heat even in the plastic then pull the twin off the griddle dump in plastic ,purge and shoot...I get a few shots in before I got to start all over....on the cheap side I go to the salvation army to get my pyrex griddle or anything else....check out franks video on how to use the twin jector look at the griddle he has I made a cover from aluminum plate like what he has to keep the heat in...good luck once I inject I go right outside with the mold to cool it faster....your no going to get much but a few is good DONT HEAT IN YOUR HOUSE OR USE THE SAME MICRO THAT YOU USE FOR FOOD..... Quote Link to comment Share on other sites More sharing options...
