Fishndooder Posted May 17, 2014 Report Share Posted May 17, 2014 Any advice would be much appreciated I have this k-mold 5.25" injection senko style mold. I heat my plastic up in the microwave and inject each individual worm and top each off. 9 times out of 10 I'm getting a half inch to inch long air pocket in the worm which obviously is no good. Is it the style of the mold or something I'm doing wrong? Quote Link to comment Share on other sites More sharing options...
DaveMc1 Posted May 17, 2014 Report Share Posted May 17, 2014 hand pour it and keep topping it off until it stops sucking the plastic in. Quote Link to comment Share on other sites More sharing options...
Fishndooder Posted May 17, 2014 Author Report Share Posted May 17, 2014 I'll give that a whirl thanks. Quote Link to comment Share on other sites More sharing options...
gone2long Posted May 17, 2014 Report Share Posted May 17, 2014 Yep that appears to be a hand pour mold no injector sprue. Quote Link to comment Share on other sites More sharing options...
ipt Posted May 18, 2014 Report Share Posted May 18, 2014 put either some copper pipe fittings ontop of the holes or a socket. fill it slowly and keep the fitting/socket topped off Quote Link to comment Share on other sites More sharing options...
carolinamike Posted May 18, 2014 Report Share Posted May 18, 2014 If you are injecting the mold it is really simple to see what the problem is, the mold has absolutley no venting. Scratch Awl or a triangular shaped jewlers file or mini file will do fine, you can buy the mini files and scratch awls at Lowes or Home Depot. The vents do not have to be very deep, make the vents on each side of the worm every 1/4" all the way down the length of the worm. As long as the vents are not too deep then there is no such thing as too many. Also put a vent coming straight out of the bottom of the tail. Looking at the mold, there is absolutley no where for the air to escape. When you inject do it slowley so the plastic has time to push the air out, even if you hand pour these I fear you wont get a quality worm without some sort of air encapsulation or incomplete worm. Proper venting will give you a quality product and production time will be cut in half. Also you only have to vent one half of the mold. 1 Quote Link to comment Share on other sites More sharing options...
DaveMc1 Posted May 18, 2014 Report Share Posted May 18, 2014 (edited) I had several of Bobs senko molds (identical to these) and poured the snot out of them, as far as my experience I had no issue with these pouring good Mike, poured a better worm than the 2 del mart molds of the same bait that I had at the same time. They are definitely not an injection mold. Like I said, hand pour it and top off the cavities as it sucks the plastic in (couple 3 times should be sufficient) and it should work out for you. Edited May 18, 2014 by DaveMc1 Quote Link to comment Share on other sites More sharing options...
Downeaster2010 Posted May 26, 2014 Report Share Posted May 26, 2014 I have one of those molds and it works good with an injector. I had the same problem but discovered my plastic was not quite hot enough. Once hot no problem. Quote Link to comment Share on other sites More sharing options...
alsworms Posted May 26, 2014 Report Share Posted May 26, 2014 I have one of those molds and it works good with an injector. I had the same problem but discovered my plastic was not quite hot enough. Once hot no problem. Good call. I'd forgotten about that. I did very little injecting, but what little I DID do was with very hot plastic and had no problems. Quote Link to comment Share on other sites More sharing options...
vaw121 Posted May 26, 2014 Report Share Posted May 26, 2014 It's funny but I was gonna post the same question. This place rocks! Thanks for the help Quote Link to comment Share on other sites More sharing options...
