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We found this in our HS robotics closet, no clue where it came from or how long it has been there? Any idea what it actually does in whatever machine it belongs to?

I have a water line running underground to a dock. The shutoff is in the crawlspace but I want to add a second shutoff underground near the dock so I can easily turn off the dock when done for the day (probably overly-cautious, but the dock uses plastic connections and it would be hard for me to...

My son occasionally comes up with a surprisinfly interesting question, the latest is "what happens if you smelt down rust, do you get iron?" I’m thinking the answer is yes, rust is Fe2O3 so the iron should still be there, but is that 100% true or do you lose some somehow? FWIW a Google search...

And my kids say that I’m not funny….anyone got a better caption? https://www.upi.com/Odd_News/2023/12/08/canada-Halifax-Nova-Scotia-Elmwood-building-moved-soap/2971702059148/

I’ve been casually looking and this came up for $250. What do you think? What should I look for when I check it out? I don’t have any specific use cases, just general parts cleanup etc. A bench top unit would also work for now, but I figure this would be better long-term (assuming I get the...

I bought 2 assortments of o-rings but I can't match them to a Delta faucet. I've found a matching diameter and a matching cross-section, but not the right combination. I have these 2 assortments: Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes and Metric O Ring Assortment, 32 Universal...

Our thermostat started behaving erratically so I got a replacement & installed it but it was providing heat when it should have been cooling. No worries, this t-stat probably has slightly different wiring, so I opened the air-handler to verify the connections there. That's when I saw this: If...

I need to replace a concrete pool deck, does anyone have any contractor recommendations for the NoVA area? Thanks!

I went to the last day of an estate sale, hoping that the MiniMill would still be there…and it was! But after listening to other potential buyers discuss what was missing ( and they passed), I wasn’t so sure about purchasing it. It seems to be missing the spindle and a few other parts that hold...

After removing a dozen pendant lights, it finally hit me - why do the screws inside electric outlets and boxes use slotted heads instead of Philips? Slotted head screws are such a pain and it seems like Philips would work, or am I just dealing with older installations? I can understand slotted...

How much does a column for a 4 post lift weight approximately? I’m considering buying a used one and would need to move it. A lot of the threads on GJ suggest lowering the ramps onto a trailer, so I’m not worried about that aspect, but I am concerned about lowering a vertical post horizontally...

This 1926 (1929?) Oliver 36 bandsaw went for $100 at auction in VA yesterday and the buyer is going to scrap it. What a shame 😔