Swimbait

[CasterCreekTackle]

The sprue is what holds your baits together after injecting them.



To do a core shot: close your mold, pour your outside color with measuring cup, then inject the mold with your core color.

[Jason]

Hi Wojo,

Sorry for the core shot info, I hadn't seen the mold you were talking about.  Since I mentioned core shot I'll explain it first.  A core shot is where you pour a little plastic in the spru of an injection mold, and then inject it.  The spru is the part of the mold where the injector goes.  To get a good core shot takes some practice.  If done correctly it can give an effect similar to the one in the picture you posted.

Now to the 605 mold.  I went to Bass Tackle and that appears to be a 2 piece open pour mold.  You should be able to just pour your first color in, pour a purple stream where you want in the middle, then top off the mold with you final color.  Sounds easy right?  Well, it's not.  Hand Pouring, especially different colors, is a real art.  Your plastic temps have to be pretty spot on, and your timing has to be pretty spot on or you will either get cold cracks (your plastic was to cold), or a swirled mess (your plastic was to hot).

Ultimately this is about viscosity (thickness of your plastic), which is controlled by temperature.  Every plastic is a little different, so it would be tough to give you exact temps.

There are a handful of guys who are really good at this, hopefully one has this mold or a similar one and can chime in with better words of wisdom.  However, it is ultimately going to be a trial and error process for you with your temps and timing.  Make sure you have a good thermometer and take notes so you can reproduce it.  You are going to need to keep multiple plastics hot at the same time so you will need a way to do this.

Let us know how you progress.

Jason

[Wojo]

Thank you so much Jason. Sounds like a lot of trial and error....I will let you know how it goes. this is the best forum. Everyone is awesome!!

[ghostbaits]

I poured a very similar mold for some time. This is hand pour at its finest to me...

Jason is correct, all about timing on these. If you look at the bait pictured, it has some of the "cracks" Jason mentioned.

Basically, you will pour the smoke pepper color in the mold, wait a little while, pour the purple color, wait again and then top with the smoke pepper again to complete the mold. Basically, you are pouring a vein.

One of the secrets on these is that guys will put the mold directly on a griddle set at 300 degrees or so. This will virually eliminate those cold cracks. This method makes it easy but is not necessary if you can get the timing down correctly.



Take the mold off the griddle once poured to cool. This also slows down your pouring but does make nice looking baits. PS  NEVER put mold on open flame or extremely high temp griddle/hot plate.

[Jason]

Jim,

Is that one of your pours?  That is one nice looking bait!

Jason

[ghostbaits]

Yes sir.... I would hijack the post with others but when we get the swimbait molds, you will get to see them!!!!

Jim

[Jason]

Yes sir.... I would hijack the post with others but when we get the swimbait molds, you will get to see them!!!!

Jim

I can read between the lines.  I am hopefully wrapping up the smaller ribbon tail today.  Then the grande wutz-its and maybe a small one as well.  I'm going to put a tail on a carrot or two, then the SB adventure begins.

[firetiger]

Nice core shots.  That would be awesome to learn.  Sounds like a video project for someone!

Cool swimbait also.

Go Grande!

[ghostbaits]

There is a core shot video out there on You Tube.

They are real easy to do (but time consuming) but not super consitent in results for me so I don't make them to sell. Just be sure your plastic is good and hot that you are putting in with your cup.

Jim

[Wojo]

Jim,

That is exactly what I am trying to do!! Awesome work! I agree, a video is what the doctor ordered.

I appreciate it fellas, I will give it a shot.

Tom

[ghostbaits]

Here is a link to one core shot video. Notice how hot the plastic is.

http://www.youtube.com/watch?v=ihsxlIAT2Sg&playnext=1&list=PL95CDBB9F5D737329

A couple notes... Don't need to suck plastic into your injector and then blow it out and then suck it up again. Pushing plastic back into the cup causes bubbles for sure. I would not do work on a glass table with alumimun molds either. A slip when you have one in your hand and that mold will go directly through the table with glass going everywhere.

Also, this is a simple way to laminate but just the body of the bait will laminate. If you use a blending block from Basstackle, you will laminate through the tail and you will get a far more consitent laminate.

Jim

[CasterCreekTackle]

Alot of people do this with the injector to get there injector warm to prevent clogs.

A better way to do this is especially if you using dual injectors is to take a butane torch and heat up your injector with it.

All this is just a matter of preference though.

But i agree with Ghost Baits on the glass table deal, man that looks dangerous.

Here is another core shot video(s):

http://s664.photobucket.com/albums/vv4/tylerd1994/coreshotvideo/?action=view&current=118_1538.flv
http://s664.photobucket.com/albums/vv4/tylerd1994/coreshotvideo/?action=view&current=118_1539.flv
http://s664.photobucket.com/albums/vv4/tylerd1994/coreshotvideo/?action=view&current=118_1540.flv
http://s664.photobucket.com/albums/vv4/tylerd1994/coreshotvideo/?action=view&current=118_1542.flv

[firetiger]

Cool videos.  Thanks for the info. 

[ghostbaits]

Alot of people do this with the injector to get there injector warm to prevent clogs.
A better way to do this is especially if you using dual injectors is to take a butane torch and heat up your injector with it.
All this is just a matter of preference though.

I use an injector every day as well as the duel injectors and heating is defeating your efforts. The injector will not clog if your plastic is warm enough. Heat ing with a direct heat source such as an open flame or close heat such as a toaster oven has been strongly frowned upon by most of the aluminum mold makers.

Your injector will heat up to the point where you can touch it with bare skin quick enough so adding additional heat is counter intuitive.

I guess since one manufacturer posted videos with this technique a while back many think it is what needs to be done. It is not necessary and will only continue to introduce bubbles into the plastic you are going to suck right back up and shoot.

Frank has spoken on this issue before as well and if I am remembering right, he refrains from both charging/discharging the injectors and any type of heat prior to injecting. Just is not needed.

Jim

[Wojo]

Once again, you guys are the best!! Thanks for the info