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DaveC426913's latest activity
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
I don't want it explained. I want a formal solution.
Jul 23, 2025
DaveC426913
replied to the thread
Wood/Glass/Metal
DIY lifting concrete blocks with a lever and a grabber
.
Yeah. That's the kind of thing I'm thinking of.
Jul 23, 2025
DaveC426913
reacted to
Rive's post
in the thread
Wood/Glass/Metal
DIY lifting concrete blocks with a lever and a grabber
with
Informative
.
There is this kind of self-locking thing...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
I get that, if you hung a 10kg mass from the ceiling, there is 10kg pulling down and 10 kg pulling up. I think that's the crux. All the...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
No, it would read 6lb if I had 3lb of bananas hanging off one side and 3lb off the other side.
Jul 23, 2025
DaveC426913
posted the thread
Wood/Glass/Metal
DIY lifting concrete blocks with a lever and a grabber
in
DIY Projects
.
Building a pool deck on a frame over concrete footings: ~ 12"x12"x8" 50lb. I am ruining my back trying to lift, place and fine-tune...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
OK. I see that explains why it's not moving, but that still doesn't really explain why it's 10 and not 20. Well, if I added 10 kg to...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
I know, right? I mean, I am satisfied that it is 10kg, but only because of the way I went about it: It obviously shows 10kg in...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
But ... there's 20kg pulling on it!
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
Let me rephrase: Can you show - formally, and without using an alternate scenario for contrast - why the scale shows only 10kg, when it...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
Right. That's the same as my opening analysis. But it's not elegant because it requires saying "OK, let's look at this alternate layout...
Jul 23, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
Yes. That was exactly my logic in the opening post. (Ijust glued the left pulley and cable solid.) What I'm not grasping is Russ'...
Jul 23, 2025
DaveC426913
reacted to
WWGD's post
in the thread
Collection of Lame Jokes
with
Haha
.
I'm alright, don't need to worry about me.
Jul 22, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
I don't follow. Who says it would be 10kg by each weight?
Jul 22, 2025
DaveC426913
replied to the thread
B
Simple mass/scale puzzle
.
Sorry, you're right, what I wrote was ambiguous. I meant a giant glob of glue that affixes both pulley and cable in place.
Jul 22, 2025
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