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Comments on Puzzle #35037: Orthographic Projection
By Brian Bellis (mootpoint)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: line logic only  

Puzzle Description:

Top, front, and right side view of the same part

#1: Koreen (mom24plus) on Apr 11, 2021

wow, gotta think about it, but I really have no clue
#2: Koreen (mom24plus) on Apr 11, 2021
love the idea, though, Brian!
#3: David Bouldin (dbouldin) on Apr 12, 2021 [SPOILER]
Koreen, he did three views of the same part. Top-left is a view from above. The two at the bottom are front and side views. The trickiest part to seeing it is knowing that in those two there are "hidden lines" that are dashed in column 6, 10, 31 and 35...they represent the "hole" through the middle that you wouldn't be able to see otherwise. Hope that helps :)
#4: Yonah Kondor (yokon965) on Apr 12, 2021 [SPOILER]
But what looks like a stack of CDs with a squared extension about half as high wrapped 1/3rd around them?

... Or is this a baseball hat from an 8-bit low-res game?
... Or an honest if less-than-perfect Madison Square Garden?
... Or part of a bagel slicer?
#5: Brian Bellis (mootpoint) on Apr 12, 2021
The isometric view puzzle is of the same part.
#6: Yonah Kondor (yokon965) on Apr 13, 2021
Got the isometric view, but still cannot think of any real-world object that shares its likeness. Anxiously awaiting the reveal!
#7: David Bouldin (dbouldin) on Apr 13, 2021 [SPOILER]
Same. It looks very familiar. In my head it's black plastic about an inch long and is secured to something else with a screw/bolt/rivet through the hole. Just can't put my finger on it.
#8: Brian Bellis (mootpoint) on Apr 13, 2021
Oh, sorry for the confusion. When you learn drafting/mechanical drawing you have these objects that are problems for you to draw. They might not be for anything real except to teach the lesson. As you progress, the problems get more complicated. You have to make choices about which three sides present the clearest views and what is the best way to draw in the dimensions. There are rules to follow, but also decisions to be made that change the overall effectiveness of the drawing. A machinist can look at a well done blueprint and envision how the final part will come out.
#9: Yonah Kondor (yokon965) on Apr 14, 2021
Ah! Ok! In that case, I'm going to invent something that conforms to that hypothetical object:

A battery(pun)-operated CD/DVD launcher for home defense! On motion activation (motion sensor in the flat/forward-facing edge as illustrated bottom/right), an internal rubberized conveyor belt rolls the bottom-most CV/DVD from the stack (cylindrical area) forward along the base of the unit until the disc comes in contact with slow-spinning rollers above (hence the height of the square-edged extension part), removing the disc from the rubberized conveyor below until the disc comes in contact with a series of faster-spinning rollers above and below it (hence the added depth of the square-edged part), accelerating the disc through a front-facing slot.

... Far better than its predecessor, the VHS Cassette launcher!
I'm off to pitch this to Macaulay Culkin, Joe Pesci, and Daniel Stern.
#10: Koreen (mom24plus) on Apr 14, 2021
David, I understood the three views. Just didn't recognize the home defense launcher. Now, of course, it's obvious. Can't believe I missed it.
Yonah, we purchased the VHS Cassette launcher when it first came out, but the tapes kept getting tangled and acted as a boomerang.
#11: David Bouldin (dbouldin) on Apr 15, 2021
Gotcha Koreen and, funny enough, same here! The part I always hated having to rewind the ammunition
#12: Valerie Mates (valerie) on Apr 17, 2021
So *that's* what all those endless AOL CDs could have been used for. Home defense!
#13: Kristen Vognild (kristen) on Apr 18, 2021
In college, they made excellent ephemeral frisbees. (Toss one until it breaks, then wait for the next delivery)
#14: Yonah Kondor (yokon965) on Apr 18, 2021
In college, they made my dorm windows nice and reflective-looking from the outside while providing ample shade in lieu of curtains.
#15: David Bouldin (dbouldin) on Apr 19, 2021
In college, they made amazing light shows in the dorm-owned microwaves.
#16: Valerie Mates (valerie) on Apr 19, 2021
In college, someone figured out that if you took a green (not red!) grape and cut it across horizontally so that it was almost cut through but a bit of skin still attached the two hemispheres, and then put the cut side down on a plate and microwaved it, that would arc. I have never personally tried this, but classmates talked about it a lot.
#17: Kristen Vognild (kristen) on Apr 20, 2021
I had friends who did this on occasion. They'd spark, then burst into flame.
#18: David Bouldin (dbouldin) on Apr 22, 2021
ouch! poor friends :(
#19: Yonah Kondor (yokon965) on Apr 23, 2021
LOL David!
#20: Kristen Vognild (kristen) on Apr 23, 2021
Those were dark times. (except for the bright moments when my friends caught fire)
#21: Valerie Mates (valerie) on Apr 23, 2021
Ha!

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