Sprue Plate Knocker

  • 6.4K Views
  • Last Post 02 May 2014
Pigslayer posted this 27 April 2014

Since I started casting in 1972 and as instructed by lyman when I purchased my first mold . . . a 358156 I have always used a thick dowel to rap on the sprue plate and the hinge pin. Every once in a while I have to replace one due to it turning to splinters. Made this one on my wood lathe the other night.

If someone else had of done to me what I did to myself . . . I'd have killed him. Humility is an asset. Heh - heh.

Attached Files

Order By: Standard | Newest | Votes
csparks1106 posted this 27 April 2014

Very nice. I'm kinda jealous. Mine is a piece of closet rod.

Attached Files

pat i posted this 27 April 2014

Real nice Pat and could see it having a second job as an upper crust head knocker.

Attached Files

gnoahhh posted this 27 April 2014

...or a “priest” to use on a fish head. My problem is whenever I make a pretty tool like that I'm reluctant to use it and go back to the splintery old one.

For a while I switched to bumping the sprue plate with the heal of my gloved hand. But the pain and suffering therein lead me back to the stick.

Attached Files

delmarskid1 posted this 27 April 2014

Is that ash?

Attached Files

LWesthoff posted this 27 April 2014

I've been using a rawhide mallet for 40 odd years. I'm on my second mallet now, and it probably will last 'til I'm too old to use it anymore.

Wes

Attached Files

Pigslayer posted this 27 April 2014

delmarskid1 wrote: Is that ash?
No, it's red oak. I have some ash in the shop but didn't want to cut into it yet so I used the red oak scraps.   Pat

If someone else had of done to me what I did to myself . . . I'd have killed him. Humility is an asset. Heh - heh.

Attached Files

Pigslayer posted this 27 April 2014

pat i. wrote: Real nice Pat and could see it having a second job as an upper crust head knocker. That thought crossed my mind. Sshhhhhhhh! LOL

If someone else had of done to me what I did to myself . . . I'd have killed him. Humility is an asset. Heh - heh.

Attached Files

CB posted this 27 April 2014

I only use a gloved hand myself.

Attached Files

norm posted this 27 April 2014

Glue a piece of leather on the wood sprue knocker and you get less splinters

Attached Files

R. Dupraz posted this 27 April 2014

Hey Norm:

I carried one for 20+ yrs almost just like Pigslayer's only it was a different color and a little longer. I never got any splinters when it was used!

Attached Files

JeffinNZ posted this 28 April 2014

anachronism wrote: I only use a gloved hand myself. Same.  The more casting I do the softer the alloy I use so I can 'hand' open.

Cheers from New Zealand

Attached Files

norm posted this 28 April 2014

RD, I bet somebody else got the splinters.

Attached Files

R. Dupraz posted this 28 April 2014

The only thing I can say norm, is, I never did!

Attached Files

joeb33050 posted this 28 April 2014

anachronism wrote: I only use a gloved hand myself.Is it still a sin? Glasses?

Attached Files

argie1891 posted this 30 April 2014

I to am on my second rawhide mallet the first one had been used for many years by the caster who gave me his equipment. Right after I got the second one my dog tried to chew it up. I don't think I will ever have to buy another as they last for decades of hard use. argie1891

if you think you have it figured out then you just dont understand

Attached Files

Brodie posted this 30 April 2014

I'm like Anachroism and Jeff I do it by hand.  I don't strike the sprue cutter just grasp it with my palm and twist the mold open. I have found this much quicker and more fluid than stopping to pick up a hammer or knocker, although I do use an OLD leather mallet to tap the hinge if a bullet should be so unwise as to dare to stick in the mold.  I have not gone blind yet although at 68 I do need glasses now due to arm shortening disease (presbiopea).  Brodie

B.E.Brickey

Attached Files

csparks1106 posted this 30 April 2014

I use my “stick” to open the flow valve, knock open the sprue plate, tap the die to release the bullets, and then to close the sprue back up. My hands don't touch anything but the handles and stick. 

Attached Files

Pigslayer posted this 01 May 2014

csparks1106 wrote: I use my “stick” to open the flow valve, knock open the sprue plate, tap the die to release the bullets, and then to close the sprue back up. My hands don't touch anything but the handles and stick.  Same here. Don't like the potential of burns.

If someone else had of done to me what I did to myself . . . I'd have killed him. Humility is an asset. Heh - heh.

Attached Files

gnoahhh posted this 01 May 2014

Ditto. I keep the stick in my hand throughout the whole process, never laying it down. I do take care knock the sprue plate straight on so as not to damage anything.

Attached Files

csparks1106 posted this 01 May 2014

Please allow me to segue for a moment. Does anyone put Loctite or some sort of thread locking substance on their sprue pivot bolt? I noticed that when I rotate the sprue out of the way, the head of the bolt moves along with it. It appears to return back, and doesn't seem to be backing out, but in theory it could, and then the cut would not be flush with the base of the bullet. Also, the Lee .45 mold of mine has left handed threads for the sprue bolt. Why is it left handed threads?

Attached Files

Show More Posts
Close