Author Topic: Twinjector  (Read 16893 times)

Offline pjmcla

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Re: Twinjector
« Reply #30 on: 01/05/13 14:17 UTC »
A hook slot ( especially ), or any other mold bulge ( belly ) or choke point will impact how the plastic flows into the mold. This will inherently create a vortex spot. ( Like smoke in the wind tunnel going over a car top or plane wing ).  Add to that the differing viscosity of transparent versus pearl colors.
Some molds, due to their design,  will not lend themselves to a really clean twin-jector laminate.  If you look at the DD gill mold; it is almost a perfect mirror image mold between the halves; and that is reflected in the really clean laminates that several have posted pictures of.   But;  I don't think many fish care nearly as much about clean laminate lines as I do.   

Offline CrabbyBass

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Re: Twinjector
« Reply #31 on: 01/05/13 14:53 UTC »
A hook slot ( especially ), or any other mold bulge ( belly ) or choke point will impact how the plastic flows into the mold. This will inherently create a vortex spot. ( Like smoke in the wind tunnel going over a car top or plane wing ).  Add to that the differing viscosity of transparent versus pearl colors.
Some molds, due to their design,  will not lend themselves to a really clean twin-jector laminate.  If you look at the DD gill mold; it is almost a perfect mirror image mold between the halves; and that is reflected in the really clean laminates that several have posted pictures of.   But;  I don't think many fish care nearly as much about clean laminate lines as I do.
The Wittle Wutz has a hook slot so that may be the cause of my issue. As you said as the plastic goes over the slot it swirls the plastic. The lure at least come out pretty consistent. Back to the lami plate it is!!!

Offline TheDreamer

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Re: Twinjector - Skinny
« Reply #32 on: 01/07/13 11:44 UTC »
Here you go guys, this is the skinny vein in the Swim Shad. Hope you like it, bad pic but it was the only one that really showed the vein. This vein is the width of a stick pin.



Drew

PS: No lami plate, no foil no crazy additions. This was mold/injectors/blending block/griddle.

Offline Frank

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Re: Twinjector
« Reply #33 on: 01/07/13 23:24 UTC »
I know it seems you tried everything but try warming up the blending block to hot temp and warm up the Twinjector. Get the temps as low as you can and try again. In the pic the green is to hot so try and get the belly a little hotter. Slow and steady with the pressure should get you the results you want. The Twinjector should be smoother with them warm and the block hot. Loosen the tops of the injectors, one of the knobs and turn the  shafts of the plungers about 1/8 of a turn. This should smooth out the unit. Use it more and it will smooth out.

Offline CrabbyBass

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Re: Twinjector
« Reply #34 on: 01/07/13 23:35 UTC »
Nice job on the thin vein Drew! Your pic is a little blurry, but I can still see it.

Thanks for the tips Frank! I went back to using the lami plate for that mold for now.  I will practice again as I go through my remelts.