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rugerman1
10-30-2008, 11:02 AM
Who makes a Lyman 2-cavity sprue plate with a raised border to hold the sprue puddle like LBT moulds has? I tried to cast yesterday with a Lyman 401638 and my Mag20 furnace is pouring alloy too fast for puddles to form on the sprue plate.I need a sprue plate that has a raised area to hold the puddle.

docone31
10-30-2008, 11:32 AM
I silver soldered some washers on my sprue plate.
to make button removal easier, I put a taper on the inside edge of the washer.
As I used the mold more, I could make smaller and smaller buttons within the adaptation.
I wouldn't use lead solder as the washers will ultimately move.
The low temp silver solders should be enough.

Echo
10-30-2008, 11:53 AM
I believe the 20-pounder may be adjustable for flow rate...

jameslovesjammie
10-30-2008, 04:41 PM
Red River Rick makes custom replacement sprue plates. If you contact him, he may be able to machine what you desire.

Here's his site. http://kal.castpics.net/

TAWILDCATT
10-31-2008, 03:01 PM
I mill mine with a ball mill from hole to hole.like H&G:coffeecom[smilie=1:

rugerman1
10-31-2008, 03:24 PM
I mill mine with a ball mill from hole to hole.like H&G:coffeecom[smilie=1:

now THAT'S what I'm talking about! A H&G type trough :drinks:

JeffinNZ
10-31-2008, 04:26 PM
I have made a couple for my .22 moulds. Not at all hard. I am no machinest.

http://img.photobucket.com/albums/v505/JeffinNZ/Shooting%20stuff/225462.jpg

leftiye
11-01-2008, 12:54 PM
Good nuff machinist I thimk.

LIMPINGJ
11-02-2008, 09:49 PM
Jeff what size holes did you drill? They look smaller than the ones in a standard Lyman plate.

JeffinNZ
11-03-2008, 04:40 AM
2mm. Made them real small to minimise the cut off mark. Bullets are now more consistent and variation down to +/- 0.1gr.

docone31
11-03-2008, 08:52 AM
You did GREAT on the sprue plate.
Now we got to get you to sharpen your screwdrivers....
I find on my sprue plates, as I use a wooden dowel to push them, I cut on the other side of the plate an half moon so the dowel can push the plate back without slipping off. That helps a lot when I am casting.

JeffinNZ
11-03-2008, 03:07 PM
Now we got to get you to sharpen your screwdrivers....
.

2nd hand mould. :roll: