Glass can store alot of energy in the stresses created as the piece cools. Its entirely dependent on the Glass type/composition and how it's Annealed. Glass...
Greetings, I am about to pour the single biggest part I have ever attempted - it will be close to 40 pounds itself, plus sprue, risers, etc. It is one of two...
Two man operation to lift the cope.... I think your on the right track but I doubt anyone knows for sure. Your risors look good but I'd also gate it from more...
Ok here goes, first the pattern will probably not pull cleanly from the sand. If you have fillets they are too small. If the step heights in the web are 1/4"...
... Thanks for your advice Lyle! For sure - unless I just burn the foam. ... I was kind of thinking the same thing - but it almost seems better to have one big...
... Thanks for your advice David! I was just planning on doing a lost foam - so you are correct - there are no fillets. But the more I think about it, the more...
Jeshua, gating is normally a 1-4-4 ratio in square measurement. by looking at the size of the pattern you may need a 1.5 diam sprue, which would be 1.77 square...
Dave, Is this a good rule of thumb for all metals (or at least those that would normally be cast by a hobby caster)? ... Dick Morris Anchorage, Alaska...
Hi Dave, I'm a new member (& I'd like to thank the group for letting me join), I've had my furnace made for quite some time (#10 crucible). I still need to...
I believe that the 1-4-4 is actually the relationship of the 1= the sprue, 4= the?runners and the last, 4= the gates. so the?runners are 4x the area of...
Hi Dave, I realized when I just opened this that I really meant to ask Dick Morris, he was actually answering a question that a Dave had asked. Anyway Thanks...
Group, Rex's description of a "Can in a Can" furnace crystallized for me what I was trying to do. So I am ready to test fire this thing, but would like ideas...
Greetings, I have been collaborating with Tim Williams who has a working home- built, induction heater. He is gearing up to make kits available that will be...
Group, I've posted this thing on EBAY a few times. I was going to try and set it up running woodgas but I have WAY too many irons in the fire to mess with it....
Thank you all for your help- there were three of you that gave some nice, helpfull advise. Please let me know when you plan on another of your casting...
Learn the most efficient technologies in the field of casting. [http://www.allproducts.com/manufacture8/shinlong/02-zinc_die_casting-l.\ jpg] Die Casting. Die...
... Greetings, As it turns out, I have redesigned the CNC machine to what looks like a better design. Rather than having the gantry rails at the table level,...
... Tim posted a new video: http://www.youtube.com/watch?v=ro6Dt9g7Ohw It is running around 2.5kW, so it is about a quarter of the power of a 10kW version....
Not to complicate your project, but sometimes I get stuck in a rut and use what ever process I've just spent some time with to "solve" a problem at hand. Is a...
... I can appreciate what you are saying. But there are many reasons why I prefer to cast. One is that it is something I really enjoy doing, and casting a fine...
