Recent content by Artie

I guess its relevant to how you look at it. 10kg of swarf would be a pretty big volume, it comes down to how much can you pack into a crucible, Ive done it before, FILL the crucible with swarf, melt it down and you've got half a cup of melt, yes you have 10kg of swarf BUT it'll take a lot of...

The no water thing is only true IF you are adding the swarf to a hot crucible.. if you are packing a cold crucible the water wont hurt as it boils off, just exlodes (almost) if added to a hot set up. So wd40 will be no problem IF its a cold crucible. The problem with swarf is 2 fold, firstly a...

I thought Id revive this old thread as its as good a place as any for the updates. And Hi all, its been some time, work has me over a barrel these past couple of years.... no let up in sight..but...I lurk... My old furnace has seen better days, she has cracks and crumbles in spots of high wear...

Thought this may be of interest to some, my foundry is very very old (nearly 30 years) and is showing signs of age and trauma, cracks and crumble. It was also originally coke fired and therefore has a large internal volume which is now wasted and inefficient since I converted it to gas. so Ive...

Gday, fire clay itself really isnt up to the job as we have already established, and needs several additives. You can buy and weigh in these additives individually, or you can add 60% silica sand to the fireclay which has the bits we need in it already. This is the simplest way... heres a...

Gday mate, theoretically I say Yes, but in reality, I think that the manufactureres dont care much about quality control and you can get impurities in the clay (stone/small gravel etc) which may not be a good thing to have inside the wall of your crucible, and of course you need one (as you say)...

and another example, an A5, a cheaper unit, about $65 landed here. Product May Or May Not Have The Yellow/Green Sticker. Typical Metal Casting Temperature 1562-2912°F / 850-1600°C Performance Characteristics Clean Melting Good Thermal Conductivity Good Resistance To Chemical Corrosion High...

Its based mainly on gold or silver (different ratingsd), a 2 kilo crucible has a 50mm mouth, very small. The A series is what you are after, here is an example of a A12 Crucible, a useful size in my world. (a $150 crucible landed here in Aus). #12 Fire Clay Crucible, See Description Below...

Hi all, due mainly to geographics, we often have to make, rather than buy stuff, same comes to metal stock and crucibles. Ive made many crucibles over the years, all from steel and I can say that they work ok for aluminium, I understand the comments made here and accept them. When casting...

gday mate, booked in for the dawn service...

The 75 was shipped to me direct here in Aus, its almost nothing to a US address and then a simple small parcel cost from there. So its ok. As far as local stuff, in reality Aus is a relatively 'small' country (22 million) and while we have a large manufacturing base, odd or small run stuff just...

Wow, $25 worth of valve springs $75 for freight.... 8) Getting them sent to a mate in the US who will pass em on...

Just want to say thanks to Steve for the excellent plans. Very detailed (as you would expect) and clear. I also liked the details provided regarding gear and valve spring providers, in fact, even though this is a project for way way into the future (time and ability), Ive ordered these...

Hi Steve, transaction complete....

Got im mate, thanks.