Author Topic: My pouring rig.  (Read 4870 times)

Offline t-billy

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My pouring rig.
« on: 12/22/12 15:09 UTC »

 Here's a few pics of my pouring rig. I hope. I just spent an hour trying to figure out how to post pics. I never claimed to be the sharpest crayon in the box.
 Anyway....The wood cabinet is on casters so all I have to do is roll it from the corner over in front of the garage door. The nice powder coated top is the front panel of my old washer that gave up the ghost last year. I made the shroud from free plywood pallets my wife brought home from work.
 I keep my injector hot by setting it on a hotplate inside that old connector from a hydraulic valve. The injector is insulated by an old sock held in place by a piece of electric tape. This helps keep it nice and hot, and makes it easy to handle. I just stick a piece of foil beneath the heating element to collect the drippings for easy disposal.
 The 2qt cast pot is my $3 yard sale special. I painted it with high temp header paint from Autozone. The small pot is one of my Lodge Logic 14 oz cast pouring pots. When hand pouring more than 1 cup I heat the plastic in the big pot and pour it into the pre-heated pouring pot 1/2 cup or so at a time. I inject direct from the big pot.
 Fancy? Definitely not. Simple and effective? You bet.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline t-billy

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Re: My pouring rig.
« Reply #1 on: 12/22/12 15:11 UTC »
Well...so much for the pics. I give up. You can check 'em out in the gallery if ya want.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline MonteSS

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Re: My pouring rig.
« Reply #2 on: 12/22/12 15:26 UTC »





....Bill

Offline t-billy

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Re: My pouring rig.
« Reply #3 on: 12/22/12 15:52 UTC »
 Thank you Bill. Much appreciated. I thought I had it figured ou. Guess not.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline matt

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Re: My pouring rig.
« Reply #4 on: 12/22/12 18:36 UTC »
I put my injector in a pizza oven, it has timer and temper gauge I can put my twin injectors  and block it doesn't hart seals
hooked up, its a big one
Wild Willeys Custom Jigs.com

Offline tpalmer

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Re: My pouring rig.
« Reply #5 on: 12/22/12 19:05 UTC »
Lookin good t-billy, giving me some ideas on some things... I like that injector heater...

Offline t-billy

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Re: My pouring rig.
« Reply #6 on: 12/22/12 19:44 UTC »
 Thanks tpalmer. It's headed in the right direction. I'll have to wait for warmer weather in spring to paint it. I'm either going to make some little shelves or find spice racks or something similar for my colorants and glitter. I want to get everything off my garage wall and on/in here. ---Tim.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline TTDuckman

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Re: My pouring rig.
« Reply #7 on: 12/23/12 00:03 UTC »
t-billy,

While I don't pretend to have all the answers, I have a comment on your set up that is not meant as criticism, but pointing out a safety concern.  I am assuming that you have the glove taped to the injector as an insulator.  Based on your post, it appears that you are using that insulator without gloves.  Injecting plastics without gloves on your hands is inadvisable.  I cannot tell you the number of times I have gotten plastic on the gloves that I wear, I have to clean them off periodically.  If you are wearing gloves, please disregard.  If you are not wearing gloves, please consider it as you with out a doubt will get plastic on your ungloved hand and it is enough to make a grown man cry when you get a good squirt of 350 degree plastic on an ungloved hand.

Tim

Offline t-billy

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Re: My pouring rig.
« Reply #8 on: 12/23/12 07:42 UTC »
 I have heavy leather gloves that I ALWAYS wear when cooking plastic. They too are covered in plastic. I should have included them in the photos. They are absolutely neccesary. My injector gets HOT on that burner. That's how I like it. I can shoot multiple molds and top off all the sprues without the plastic cooling and gumming it up. They're also neccesary for handling the pouring pot and cleanup. The best way I've found to clean my cast pots is to wipe them out with paper towels while they're hot. That keeps them seasoned and prevents rust.-----Tim.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline TTDuckman

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Re: My pouring rig.
« Reply #9 on: 12/23/12 08:39 UTC »
Right on.

Offline fsh4fun

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Re: My pouring rig.
« Reply #10 on: 12/23/12 08:54 UTC »
t -billy,It seems like I always have about 1'' of plastic in the injector,if you put it back in your contraption,does it run out? I like your idea of keeping it hot. I guess I`m wondering if it runs out on the tin foil,or stays in the tube somehow? Saw some other videos where they put it back in the hot plastic to keep it from setting up in the injector,but my small 1 cup cup toppled over with the injector left standing in it. fsh4fun.

Offline t-billy

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Re: My pouring rig.
« Reply #11 on: 12/23/12 09:14 UTC »
 If you're getting plastic buildup in your injector, it's because the injctor isn't hot enough. When I'm done filling molds and topping off sprues, I shoot the leftover plastic back into the pot. Then I hold the injector tip down over the pot until it quits dripping. I then wipe the tip clean with a blue towel before placing it back on the burner. It drips a little onto the foil but it's not much. Keep that injector HOT. It works smoother and stays cleaner that way.-----Tim.
A generous man will prosper; he who refreshes others will himself be refreshed.

Offline fsh4fun

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Re: My pouring rig.
« Reply #12 on: 12/23/12 11:14 UTC »
Than I think the problem is with the injector.After I inject the mold,I inject the leftover plastic back into the remaining hot plastic.When I open the injector,there`s about 1'' of plastic still in it. Its a used injector,not sure what brand,but I just bought a new 1 from BT,and a blending block. Next time I`ll see if the new one has plastic in it after pushing the push rod all the way down to empty it. As for the sm. blending block from BT,its works great. I`ve used the 2 injectors and the block and made some great baits.A perfect 50/50 color when I push the handles down together. Started with some leftovers,and quickly got the hang of it. The drawback is the injectors need to be side by side and touching each other to put them in the sm. block.If anyone is considering getting a block,get the larger one. fsh4fun

Offline t-billy

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Re: My pouring rig.
« Reply #13 on: 12/23/12 11:47 UTC »
 If the plastic is setting up in your injector, the injectors not hot enough. Plastic can't build up in an injector that's hot enough to keep it liquified. When I'm done with a pouring session, I pop the nozzle out of my injector and wipe it, the piston rod, and the piston clean with a paper towel while it's still hot. It takes maybe 30 seconds, and is about all the maintenance needed. The only place I get any plastic buildup is on the top cap/rod guide. I have to remove it and peel the plastic buildup off maybe once every half dozen sessions. The buildup isnt much , but it's enough to act like a seal between the cap and the rod, trapping air and making it hard to draw the piston back. I use a CCM medium injector. After 3 years of heating/using my injector like I do, I'm still on the original set of o-rings. Don't worry about them. They'll take the heat just fine.
« Last Edit: 12/23/12 12:03 UTC by t-billy »
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Offline t-billy

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Re: My pouring rig.
« Reply #14 on: 12/23/12 11:59 UTC »
I put my injector in a pizza oven, it has timer and temper gauge I can put my twin injectors  and block it doesn't hart seals
Another good solution. I think this is great way to go, especially for twin injectors. A toaster oven would probably work great as well, and they're not very expensive.
A generous man will prosper; he who refreshes others will himself be refreshed.