Latest threads in ⏣ General Metalworkingshow only best voted threads
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Eighth-inch pipe thread puzzle
Did the standard size for one-eighth NPT threads change at some point in the past half century or so? I find myself with a few fittings that don't seem to agree with one another. In one group there's...
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16 hours ago
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Sheldon is 11" lathes
What years were the 11" ks lathes built by Sheldon
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6 days ago
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Usenet Access
Looks like AIOE might be done. Its been down for a while, and the webpage is down as well. Eternal September is still working fortunately. Hopefully I'm not forced to use Google.
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1 week ago
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Non Rellable 1 lb propane tanks
Just wondering if any of you guys has attempted to repurpose a coleman propane tank - the little 1 lb critters - and have cut one open? What thickness is the sheet metal? I need to make a replacement...
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1 week ago
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hydrogen solution and diffusion in "A small welding job"
Hi all "Index" note - a sub-conversation started about hydrogen / weld hydrogen and its investigation in the thread which is "A small welding job"
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2 weeks ago
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A little machining project
My neighbor the blacksmith has asked me to help with the hinges for a Hobbit door ... they're round and very heavy . He's forging the strap elements , I'll be machining the hinge elements to be welded...
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3 weeks ago
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Part cracking in impact test IK 08
Hello, We do injection molding for electric counter boxes. i am using a mold with crack in the cooling circuit, so while injecting there is a bit of water coming out of the ejectors, The part seems to...
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3 weeks ago
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A small welding job
A neighbor's friend brought a small welding repair over for me . It's an I beam that is the backbone of a PTO powered post hole auger . But that's not what this post is about , this post is about...
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4 weeks ago
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Article - application of "Froude Number" analysing a boat I worked on
Article - application of "Froude Number" analysing a boat I worked on. "Hydrodynamics, Froude number and a clever vessel design" I knew this in late March 2022, but wrote the article on New Year's Eve...
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4 weeks ago
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Three Form Thread Mill ???
Below are CNC applications: I use machine taps in tension compression holders. Functionally like rigid tapping, but with some fudge factor for machines that do not have a C-axis. Typically I run this...
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1 month ago
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Burned some flux core today
Finished the wiring changes in the shop yesterday to accommodate the new welder . Today I used it to repair a part for the wood stove . It's immediately apparent this machine is much more powerful...
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1 month ago
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coastbilt 8" outside caliper with micro adjustment screw.
Fun and games with search engines. Entered coastbilt 8" outside caliper with micro adjustment screw add -digital -micrometer so of course, the first things are micrometers, digital, electronic...
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1 month ago
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Steel Rule
There is a type of cutting stock blade that is just steel strips with a cutting edge. I think its mostly used to make die cutters. I think its basically soft steel with a hardened edge. You cut it in...
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1 month ago
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how to drill/mill compund angle
I have a stinker of a project - making a steering axle for a "cart" I need to fit tube for king pins at 15 degree king pin inclination and 15 degree caster. The king pin tube is 7/8" dom tube with...
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1 month ago
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New welder !
Well , new to me . Found a Lincoln Weldpak 175 in like-new condition , he was asking $375 I offered $275 and he accepted . It really is like new , contactor tip is clean and so is the nozzle . It also...
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1 month ago
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