chamfer cavity base and bottom sprue plate holes

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castmiester

Active Member
wouldn't doubt you do things that nobody else does that's a waste of time too.

Or you could have just said this....
I'm still stuck on this think about using a cricket to chamfer the base of the cavities, that's not what I do at all....but it works?. I leave the edges of the holes razor sharp and break the edges of the blocks with a file as per Ben's photo, that way the air can escape from around the bases. This is something I learned to do with Accurate moulds because the top of the blocks and sprue plate close together literally air tight and it seemed that I was always chasing a bubble right around the edge of the bullet base, or would have one just under the surface
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Whadda think of that comment ? I think just the block edges around the sprue plate is where the venting matters most.
 
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castmiester

Active Member
now you're not making any sense.....

If it's not a waste of time then it has to be doing what he wanted, right or wrong ? ? So how can he being ruining the mould ?

What do you think about the quote I posted?
 
Ian

Ian

Notorious member
castmiester said:
Whadda think of that comment ? I think just the block edges around the sprue plate is where the venting matters most.
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Regarding Accurate molds, and only Accurate molds which are machined so perfectly that they are literally airtight, just barely breaking the edges of the BLOCKS with a file will provide just enough venting to fix that annoying bubble. Never really had that problem with any other mould. Anyone who thinks beveling the base edge of the cavity will help venting is not real good at thinking.
 
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castmiester

Active Member
and this?
One reason for rounded bases and even poorly defined lube groove bottoms is those sharp edges of the mould cool off quickly when the mould is open, so you get "cold mould syndrome" in just those spots?????. If your casting routine involves the blocks being open for any amount of time beyond the minimum to shuck the bullets and get it closed again rapidly, this can happen.
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Yeah.. ok. What a load of nonsense.
Pot temp, sprue cooling time, with a good sprue plate made well filled out bases and driving bands look really well on another mould I have.

I'd post pics but I know you'd look at them with a magnifying glass.
 
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Ian

Ian

Notorious member
Jeff H said:
Made perfect sense to me, unless your other comments meant something other than what their construction and syntax indicated.
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He only started this thread to troll me and try to catch me in a trap because he got butthurt over some truth darts I sent his way last night. He later edited all of his snotty posts to me on that thread after waiting nearly two hours for me to take his bait, refershing the thread every few minutes, and then today asked to have that thread closed when I didn't bite. I have all the screenshots and so forth.
 
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castmiester

Active Member
Ian said:
He only started this thread to troll me and try to catch me in a trap because he got butthurt over some truth darts I sent his way last night. He later edited all of his snotty posts to me on that thread after waiting nearly two hours for me to take his bait, refershing the thread every few minutes, and then today asked to have that thread closed when I didn't bite. I have all the screenshots and so forth.
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listen to you..... !!! LMAO I started this thread for guys who can contribute and name call ! SIr !
 
Rick

Rick

Moderator
Staff member
Playing favorites? Really? Now your trying to pick a fight with me? Do you think for a second you could win that?

You stop this now or I will.
 
Rick

Rick

Moderator
Staff member
Shadow box with this . . . You have shown your true intent here.

Name calling is not permitted on this forum. No, not even by you.
 
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castmiester

Active Member
Ian said:
Regarding Accurate molds, and only Accurate molds which are machined so perfectly that they are literally airtight, just barely breaking the edges of the BLOCKS with a file will provide just enough venting to fix that annoying bubble. Never really had that problem with any other mould. Anyone who thinks beveling the base edge of the cavity will help venting is not real good at thinking.
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pour a glass of soda or water and where do air bubbles travel, sideways ? 9Although. that's what venting is for, but any other help can work better) Up. So it would make sense that lightly beveling the cavity bases would help. You don't agree, it's ok. of course I wouldn't do it unless I had to. We'll see.
 
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castmiester

Active Member
Rick said:
Shadow box with this . . . You have shown your true intent here.

Name calling is not permitted on this forum. No, not even by you.
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oh.... ok, just checking in with you Rick ! LOL Are you listening Ian ? or dosen't it matter that the "old timer" isn't here ?
 
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