Table Top Injection Machine

[smallmouthaholic]

I was more wondering about the port at the end of the mold and having multiple cavities (ie 10/20 cavities). Seems the lamination process would not be as efficient as if the port was moved to the center of the mold. Hate to have to buy 100 single cavity molds vs 10-10 cavity molds.

I am sure they have thought all that through though. The design seems very well thought out.

Jim

I hand inject,multiple cavity molds w/ a center inject port and they two-color inject just fine. The machine has to be the cat's meow for this w/ consistent temperature,viscosity and pressure.

[carolinamike]

Jim, you and Dave are both right. The mold really needs to be set up for a laminate shot to do multi cavity laminates. There's usually a device inside the mold that actually does the dividing. The big thing with the machine would be your three standard variables, which are time, temperature and pressure. And take my word for it, each color is different. Pearl colors and dark colors absorb more heat, therefore adjustments have to be made. On a single cavity mold, the main thing to worry about is that both colors exit the injection nozzle at the same time. If wrapping occurs, that's when you'll have to start adjusting temperature. As far as recovery time, the best rule of thumb is you want twice as much heat exchanger than you actually need. In other words, to keep from having recovery time, I suggest not to shoot anything that takes more than a half pound of plastic for a 1 lb heat exchanger. But remember on a two color machine, you would have 2 lbs of plastic at your disposal. You could run the same color in each heat exchanger and shoot the baits in the laminate mode, that way you could shoot up to a pound at a time without losing too much in recovery. I actually shoot one bait that I have to put two 4lb heat exchangers together and shoot in a laminate mode, and I still might have to wait 3 or 4 minutes for recovery. And from what I can tell from the video, you can hold continual pressure on the shot, this will elminate shrinkage dimples. Also, with heat exchangers, you eliminate the problem of foaming and bubbling. As long as your plumbing is air tight, they'll be no air in the system. It's exciting to see something come out like this. I just wonder who'll be the first to knock it off.