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Started making a shotmaker


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I found that if you are going to use a boiling ring as the heat source you want it as far forward as possible to get as much heat as possible into the ramp so you don't want the ramp to go too far underneath the pot unless you cut out a portion for the boiling ring to fit into.

I also fitted a countersunk m6 bolt into the centre of the pot that protruded out of the bottom and fitted into a socket in the firebrick base to keep it fixed whilst still able to be lifted off for emptying etc. You certainly don't want a pot full of lead sliding into a bucketful of coolant.

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Hmmm, I think I must have misunderstood the sticky on the ramp and thought it needed to be under the tray. Perhaps I should peel it off and refix. Yes its a 1350watt boiling ring. Yes Sits, will put a fixing underneed to stop it sliding off, hot lead everywhere is not such a great idea!!

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Hmmm, I think I must have misunderstood the sticky on the ramp and thought it needed to be under the tray. Perhaps I should peel it off and refix. Yes its a 1350watt boiling ring. Yes Sits, will put a fixing underneed to stop it sliding off, hot lead everywhere is not such a great idea!!

 

The chap who made my stainless pots stuck the top corner of the ramp to the bottom corner of the dripper wall which creates a lip underneath. When the firebrick base is made and the boiling ring sat on it I slide the pot up the boiling ring until it touches this lip then make a mark thru the hole in the pot center and this is the point in the firebrick base where a socket is fitted to accept the m6 bolt that fits into the pot.

 

The firebrick base depth is the measurement from the plate on the back of the boiling ring where the electrical tabs are to the front of the ring itself less a few mm so it just overhangs at the front. The tails are carefully cut into the soft firebrick with an old saw and chisel.

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have you filled it with water to see if it leaks the welding is shocking

 

I ran round the outside with the mig, so its fine, the mig wire is a bit old so wouldn't run, probably didn't need to bother with the inside, but hey its not a beauty contest :no: And at 300 quid less than the one you bought from the states, and your're a welder, who's having the last laugh :yes:

Edited by turbo33
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Still at it with the shotmaker and making a bit more progress. The pics show a celcon block sawn to the correct size and angles. Channels have been cut out to fit the element and holes drilled through the back to pass the wires through and protect them from heat. The simmerstat is housed in a deep pattress box.

 

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Here's a very short clip of it working.

 

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I have done about 3 runs now with variable results, but improving. The first problem was not fluxing the lead adequately. Following the help from the above PW members on how to flux, the alloy is much cleaner and consistant flowing. I had a few bits of roofing lead lying around, so have been using that. The next problem was that on exiting the ramp, a lot of it was popping as it dropped into the tank. The last few minutes of the batch it was much better, so I thought maybe the fabric conditioner it was dropping into was bettter when warm. So the bucket went on a camping stove for 5 mins. I kept repeating this process until the optimum temperature seemed to be 40 degrees.

This is a pic of the last batch.

 

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I'm not there yet I know, the size is consistant but it lacks roundness. I'm assuming its because its roofing lead. I would appreciate any help and advice.

( but don't want my palm read :lol: )

Edited by turbo33
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Dry it, tumble it, graphite it and shoot it. You'll never have to buy lead shot again :yahoo:

 

As far as roundness goes I think a lot of that is down to what is in the lead alloy, mixing some scrap linotype should help all round but having the ramp closer to the coolant helps too by making a gentler splash as the lead hits the coolant.

 

Tumbling the dried shot in a bucket with a paint stirrer on an electric drill with a minimum amount of graphite will make it look a lot better but you're about there now to be honest.

 

Love to see a new shotmaker turning out their first batch of useable shot, now go and kill something with it :good:

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