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Small world, indeed! -- Bruce Johnson The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

No, I can machine manually with precision, so long as I don't get distracted. From previous experience with programming computers, I could do a simple part in CNC, probably, but if it were a very

Sterling silver melts at 893C, pure silver 991, Brass is 905-1025 depending, Platinum is 1773, cast iron is 1127-1204, carbon steel 1371-1540, and stainless steel is 1510, all those also in degrees

so ya can manually machine with precision , but there's no precision in CNC ? ??? ??? anima;

Up to 50% Plaster of Paris. Not to be used above 1450C. At what temperature do the jewelry silver alloys melt? John

https://www.riogrande.com/article?name=701610-SDS is the Safety Data Sheet for Fogor's Premium Blend Investment. Among other things, it lists the ingredients, and approximate percentages. A 10.5# bag

Just remember to think outside the box. There's nothing in the rules that says your pattern has to fit on the build plate. Only pieces of it. Then glue them together. If you are using lost PLA I'll

Reading that, I started hearing the Disney "It's a small world after all..." earworm. I haven't been to Disneyland since 1968 or so. Before I started high school. :) Bill in OKC William R. Meyers,

John, would they fit on a 300mm cube printer? That is approximately what mine is rated for . Largest object I've printed so far is a 127tooth mini-lathe change gear, about 5" diameter. Actual is

Probably have that document, but downloaded it again anyway, just in case! I did lose a hard drive some years ago, and a bunch of my data with it. An MPCNC is on my todo list, and I may have to bite

From my earlier posting: " One of our local guys has lost foam with the floating sand bed down to an art form. He uses his JGRO CNC router to create the patterns out of foam. And used it for

Bruce I like the link. Lots of goodies to print. Thanks John

Years and years ago, long before I moved to Oklahoma, I was doing a little jewelry work, and was learning to carve wax for lost-wax casting. I learned that plaster of paris doesn't work well for such

From: [email protected] [mailto:[email protected]] On Behalf Of Bruce J

I found this linked in the old Yahoo Gingery Lathe group, it looks very useful for doing LFC. Note the ‘cnc’ needed to carve foam doesn’t need to be extremely robust an MPCNC or lightweight

Too cool! I've been pretty busy for the past nearly 8 years, and lost track of SuperDave, among others. Maybe we can reconnect, if I can find him! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A

Lost PLA is cast like lost wax…in a plaster mold, not sand; at least every description of it I've seen has been done that way. -- Bruce Johnson "Wherever you go, there you are." B. Banzai, PhD

Shrinkage is a known constant and the great thing is that you can design to correct size in the 3D app, then tell it to scale up in all directions by the shrinkage % …

Hi Bruce, Thanks for the links and your answer. Carl

I love photos, but often some photos just show an object not the details needed to understand the operation.