when you are injecting cnc molds with the injector.  once you inject all the plastic and need to refill to continue on, can you keep filling the injector up with more plastic even though you have the left over plug from the previous injection?

 

right now, after each injection, i am opening the injector to remove that leftover plug.  then i fill back up and proceed.  is this plug removal needed during the process?  the only thing I think that it does, is decrease the amount of plastic you can draw in for the next injection.

 

anyone have any thoughts on this?

Take it out lay it aside for future melting.

Which i do, but right now I remove it after every injection. Slows down the process 😊

What size injector are you using. and how many molds are you looking to shoot at a time?The new Angling AI preimium injector is supposed to keep plastic warmer longer but it is spendy. The videos on it look cool, but the blending block looks annoying imo. The other way to not have a plug left over would be to get a shooting star, or jacobs injection machine which are expensive as well.

I've gotten around this in two ways. 

 

First, I have 3 injectors-my first and then the dual injector that I bought later. 

 

Second,  I leave the injector in my presto pot and it stays hot enough to not set up. If I'm doing small runs with a microwave this obviously isn't an option.  

 

Otherwise I just go slow and waste time pulling the plug out. 

Keep it hot, you won't get plugs. Here's how I go about it.