Random Thought Thread

Hard Knocks said:
Yes! Tactical Dillo FTW

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ha ha, a doppelgänger.

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Cool video, that guy is no virgin in the shop. Those ferrous-cutting blades are not prone to walking in the cut, so they give you nice, square cuts without a bunch of slag to fool with. You can pretty much go straight to welding. But you want to run them slow RPM, about half that of an abrasive chopsaw wheel, and they're relatively expensive and difficult to service. I always cringe a little when I get the call "Hey can you guys resharp ferrous-cutting carbide-tipped blades?" because it's most likely the tips are rounded plumb off into the steel and beyond repair. That's pretty hard to swallow when you're dropping $75 to $200 on a 14" roundsaw. Still, a very nice addition to a metal-working shop, just not quite as magical as it seems in the video.
 
Hard Knocks said:
But you want to run them slow RPM...
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Years ago I talked a guy I used to work with into getting a set of carbide hole saws. He called me a month later saying they were great at first but dulled just like his bi-metal hole saws and were five times the price.
I asked him if he was running them at slow RPM’s. He said, “No”. I told him “reading is fundamental”.
 
Odog27 said:
He was kind of blaming me - like I wasted his money.
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I hear ya brother. I get that kind of thing all of the time. One of the bigger wood component shops that is a customer called me in, madder than heck that the new super fine trim blade we had just sold them was all busted up. I showed up to take a look, and sure enough the carbide tips were trashed. Anyone could see that something other than wood had gone through that blade. They had begun to build these little teardrop trailers during the slow time, and the miter blade they used to cut the aluminum trim was about ten feet down the line from the wood trim miter.

The floor boss was facing me, and I was facing the cut line, when I asked him if it was possible someone had run a piece of aluminum through it. He literally said, 'Listen, our guys are well-trained to use that saw (pointing at the aluminum miter) for metal, and that saw (pointing at the wood trim miter) for wood" like how dare I even ask a question like that. Just as he finished the sentence a dude walks up and shoves about a .100" thick piece of aluminum in the wood miter and rams the saw blade down into the cut. I wish I could show you a video of that floor boss's face.
 
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