I need to cast this motor mount for our FIRST Robotics team CNC router. How should I orient this part in the sand? How to feed it? I have white...
Finally got around to machining the castings I made for the FIRST Robotics team CNC router. I screwed up not allowing enough for shrinkage but...
So we did a test casting of a simple part I had ready for aluminum. I didn’t have anything for a cup around the riser so it just stuck out of the...
A friend would like to cast some copper. I've only done aluminum with lost foam. My furnace is rated for bronze and aluminum. Could copper be...
A friend that gave my grandson a complete foundry setup also has a gas fired forge from a high school. Kind of rusty and ratty looking, just like...
Weather was pretty decent today so I decided to try and pour the last pieces for the CNC router we are building for the FIRST robotics team. The...
The goal of infill in 3D printing is to give a part strength with as little material as needed saving both material and lots of printing time....
I made an angle ingot mold and it is little on the small side and heavy. Made from the only angle scrap I could find 1/4” x 2” x2” stainless. So...
I am starting a new thread on this topic because I am building a 24” x 48” CNC router for the local high school Mercury 1089 FIRST robotics team....
I have these available if anyone near Hightstown, Nj is interested. Free to good home.
My steel cans holding the patterns weigh nearly 100 lbs filled. So now I see why people build tilting mechanisms to dump sand. However I’ve been...
When you pour there is a tendency for the sprue to stop taking the metal until it kind of burps. I’ve been attaching the sprue to the part at an...
On my way to get a haircut this morning I see a downed traffic light. Road crew gives me the cast aluminum base, nicely broken into manageable...
So I should thank you all for asking lots of questions, as I realized I am doing some things wrong. First was the mention of a plinth block under...
I converted our two man tongs to Grab & Pour so you never set the crucible down except in the furnace. Wanted to work alone sometimes so I made...
I am thinking some 4" stainless half pipes with tapered ends welded in. When cooled two halves would make a nice round chunk to go in a crucible.
I have a whole bunch of scrap 6061 and quite a few pieces have stainless bolts broke off in them. I am thinking just tossing them in a crucible...
I bought some shellac and tried laminating some 1” pink foam. Clamped for 12 hours and still wet inside. Do you need to sand the skin off the pink...
I am thinking of casting some pulley blanks and some hubs that are at most 4” od. I’m thinking of cutting a group of them around a central pouring...
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