Modified CPAP mask for outdoor Coronaviris mask?

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I have a few CPAP masks of the type that covers my complete nose/mouth area & seals up really well. The outflow flap valve is in the hose. I was thinking...

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Wow Michael, I'm so impressed on with this on many levels. Good on ya' dude!

I want to do the 3d print thing *BAD* but there's...

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Hey Jerry, all that good maintenance helps a lot but what really works every time is to heat the head, intake manifold & carb with a hair dryer to...

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Yep, it's for testing used steppers & driving various motion control projects back & forth during construction Mike. It's a DM-542 Leadshine clone...

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Alright! Got the first post-stroke project under my belt. The bum hand is doing great other than the atrocious typing.

I’ve been buying...

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You're right OM. I just finished a 2 mile walk & it's sunny & 80F. My little neighborhood is teeming with lawn mowers, string trimmers, leaf...

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Wait, what? Did I have a previously unseen brain glitch during the stroke that left me brilliant? Perhaps a power surge during one of the MRI's? Thanks...

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Thanks for the info G, you are very knowledgeable about it! I went through a week of inpatient PT when I had the bad stroke in 2015 & they had me...

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Thanks all for the well wishes fellers!

My right hand is slowly getting better & I can't tell you how happy that makes me. I spent...

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I had a minor one 2 weeks ago & a bigger on Friday @ 6:30 AM. The EMT's were fantastic & took me straight downtown to the stroke center. The Docs...

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For the umpty-leventh time, you guys should put your locations in your profile. (Not you Mark)

You guys ashamed of where you live?
...

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Isn't that a compressed air engine? Shouldn't need to worry about throwing a blade off a drilled hub.

If you can't find a prop with a large...

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The direction of action is correct. It's for adjusting the attitudes of recalcitrant lambs & calves. Usually just approaching them with the tool...

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I can't remember ALT codes anyhow so I just get them from the Windows "Character Map."

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Oops, never thought to look on ebay...I should'a known!...

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Rather than fabricate a wall mount bracket, I stuck it down to a nearby table top with 3M VHB tape. Insert pencil with left hand, turn crank with right....

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OK, here’s my entry into the 2020 Frugalman® award. My trusty old 1986 Boston electric pencil sharpener suffered a sudden fracturing of its main drive...