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Randall
10-12-2008, 11:26 PM
I bought a new Lyman 452460 and was having trouble with the bases not filling out. I tried a loose sprue plate and hotter alloy with little improvement. Then I remembered somone here suggested breaking the top edge of the inside of the mould with a stone. I did that and instantly got complete fillout.
Thanks to whoever posted that.
Randall
45nut
10-12-2008, 11:30 PM
I SO enjoy reading this type of post! Thanks!
Cayoot
10-13-2008, 12:04 AM
IThen I remembered somone here suggested breaking the top edge of the inside of the mould with a stone. I did that and instantly got complete fillout.
Thanks to whoever posted that.
Randall

So Randall, are you saying that you just broke the edge under the sprue plate?
Bret4207
10-13-2008, 08:35 AM
IIRC you use a very fine stone and just take a pass or 2 at the top angle of the blocks where they meet. This allows a little venting in that area and lets the alloy fill out better.

Glad you mentioned this, I'd forgotten it.
Randall
10-13-2008, 10:20 AM
So Randall, are you saying that you just broke the edge under the sprue plate?

Thats it, I ended up with a barely visible white corner instead of blued.
Randall
Cayoot
10-13-2008, 02:14 PM
Thank you Randall, that helped alot.
leftiye
10-13-2008, 02:42 PM
Need a bigger dog and an Osama Obama sign (or the iatola hisself).
spur0701
10-13-2008, 06:05 PM
I've got a Lee that has poor bottom fill out, where do I stone? The edge of the cavaity where the two halfs meet?
Randall
10-13-2008, 11:39 PM
I've got a Lee that has poor bottom fill out, where do I stone? The edge of the cavaity where the two halfs meet?

Yes, I stoned the top of the blocks where they meet, it doesn't take much on the Lyman blocks, I have never tried it on any other moulds or aluminum.
Randall