Deep Drilling Aluminum

Richard, I realize this may be to late to help, but a 3 flute drill will deflect a lot less, and short of a gun drill may be the best tool for deep drilling aluminum with carbide of course being better than HSS.

I knew this and actually have a couple 3 flute drills for this purpose. I don't have any excuse for failing to mention it, other than I just didn't think of it. Of course you need a suitable maxhine to start it straight. I expect you could use a hand held drill if you have the skill to start it "straight enough."

-- Bob La Londe CNC Molds N Stuff

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This Portalign is on UK eBay though the seller is in Michigan.

Angle irons clamped to both sides and extended out, with a nut clamped between them, could guide a drill bit of the nut tap size straight. IIRC an M12 nut may have an 18 or 19mm hex.

I think I'm coming along with my hand metalworking skill. A 2' long 18 ga car rust patch that's all curves and bends fits the surface flush within

Several auto shops gave me some willing and some grudging acceptance of my plan to attach the patch with SS rivnuts. Apparently 'normal' people don't take their cars apart to inspect for rust. Normal people also don't fix their car, weld, own machine tools or design their own computer, while I don't have a shrink on speed dial. You are right, Bob, I don't know very many.

Took me a half second to see the cross threading. Cross threading is generally a bad thing.

Took me a half second to see the cross threading. Cross threading is generally a bad thing. Bob La Londe

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I agree. I just received an air drill with a Japanese quick connect. Fortunately a US fitting replaced it and seals with no cross or other disagreeable threading, just lots of tape.

I agree. I just received an air drill with a Japanese quick connect. Fortunately a US fitting replaced it and seals with no cross or other disagreeable threading, just lots of tape.

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The air drill inlet may be BSPP, I can't measure it like external threads. The male thread on the quick disconnect is only 3 threads long and difficult to tell whether it's 60 or 55 degrees, 18 or 19 TPI, which my thread pitch gauge omits. Anyway an HF swivel connector fits and seals 90PSI.

Just throw it on your AI driven eleventeen axis self programming CNC machine and tell it to re-machine it to match something you have in your parts bin. (I actually get customer demands that sound like that sometimes.) Just don't use Gemini AI. It won't look anything like the original part if you do, and it will deliver the part to Cambodia.

Just throw it on your AI driven eleventeen axis self programming CNC machine and tell it to re-machine it to match something you have in your parts bin. (I actually get customer demands that sound like that sometimes.) Just don't use Gemini AI. It won't look anything like the original part if you do, and it will deliver the part to Cambodia. Bob La Londe

----------------------- I would but I gave it the task to invent a new device, and when it searched in the future for the solution it got itself into an infinite loop of self-modification. From the sounds it makes I suspect it may have shifted the goal to writing a hit Broadway musical about the traumatic lives of singing and dancing robots dressed as cats.

My answer to those inventors was to ask them to define in numbers what "exactly" means, and explain the time and cost consequences. I never hear a peep again. I've demonstrated how long it takes to center work in a 4-jaw to

Just don't use Gemini AI. It won't look anything like the original part if you do, and it will deliver the part to Cambodia.

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Google AI rarely understands what I enter. I just searched for Noric iron and it insists that I meant Nordic. Noricum was Celtic Austria where the Romans obtained iron containing manganese to make superior swords.

I'm not the only well educated person around. I was at a fair today discussing 3D printing filament when the band began a song that both of us identified as Fantine's from Les Miserables.

I started playing with Grok, because its the AI that integrates to some extent with Tesla (my wife just ordered a Model 3 AWD), and I wanted to know it was as retarded as Gemini AI (which is way to integrated with Android Auto and has f***ed it all to hell). Grok is not terrible. It has a political bias, but it backs up its findings with reasoned arguments. Its not just wrong, like Gemini AI often is.

That being said, I had reason to post this today on the CamBam forumss

It's not perfect, but its a lot better than plunging at the plunge rate from clearance height when machining a feature in the bottom of a pocket.

I needed to do a 3D detail operation in the bottom of a 3D pocket. The top of the feature is at about -0.3. Now its rapiding down to -0.28 and only slowing to plunge rate for the last .02 inches.

I know most of you guys have probably had this dialed, but it was not intuitive to me, and I always had something more important to figure out.

I knew others had been using it so I asked Gemini AI for a better description of how the fast plunge height works, and in its mostly useless as t*ts on a stump fashion, it just regurgitate the same information as in the CamBam manual. That still doesn't make sense to me, so I called it a stupid f****ng AI and reminded it I said "better description," not just vomit up the manual I already read. I was stunned when it came back with a description of how to achieve usable results. It's the most brain damaged of all the AIs, okay Microsoft's CoPilot AI may be tied for retardation level, but it actually gave a useful description.

I started playing with Grok, because its the AI that integrates to some extent with Tesla (my wife just ordered a Model 3 AWD), ...

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"Field assembled and led the team that produced the Model 3 sedan, Tesla’s most affordable vehicle, designed to have mass-market appeal."

Reminds me of seeing Hessian crucibles in an old catalogue and wondered how that worked, Hessian in that case refers to the Hesse region of Germany where they were made rather than the fabric.

Reminds me of seeing Hessian crucibles in an old catalogue and wondered how that worked, Hessian in that case refers to the Hesse region of Germany where they were made rather than the fabric.

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Those regions were independent states until fairly recently. Napoleon consolidated them from thousands to hundreds. Germany wasn't united into a single nation until 1871. The united nation of Italy is only a few years older. The USA has one of the oldest continuous governments since so many others were interrupted by wars.