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| | | Author: | tec  | | Posted: | Feb 14, 2021 13:18 | | Subject: | transparent colors chemically react - now wha | | Viewed: | 190 times | | Topic: | Colors | | Status: | Open | |
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| https://gameofbricks.eu/blogs/news/illegal-lego-building-techniques-to-beware-of-2020
rule #6 caught me
things like "form a chemical bond", "hazard to you"
... uh?
1. I have never heard about these chemical reactions. Who knows more about it?
2. sooo... Is it illegal to mount a trans-clear brick over a trans-red one? Does
it depends on the specific trans* color?
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| | | | | Author: | hpoort | | Posted: | Feb 14, 2021 13:33 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 58 times | | Topic: | Colors | |
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| In Colors, tec writes:
Just recently LEGO has changed the type of plastic used for transparent bricks;
with this new type the problem does not occur anymore.
Stud on antistud generally is not a problem, as there is little contact surface.
So you can 'legally' stack two transparent bricks or plates together.
They might want to fuse, but I've not seen these to be too hard to detach.
What you should not do, is to insert a transparent bar in a transparent cone.
They fuse together rather soon.
The only hazard would be that you can't detach the bricks anymore. So feel
free to do whatever your fantasy leads you to. Only if you are making a professional
design for others to build, you should think of these issues of what is 'legal'.
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| | | | | | | Author: | SylvainLS | | Posted: | Feb 14, 2021 13:50 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 51 times | | Topic: | Colors | |
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| In Colors, hpoort writes:
| | In Colors, tec writes:
Just recently LEGO has changed the type of plastic used for transparent bricks;
with this new type the problem does not occur anymore.
Stud on antistud generally is not a problem, as there is little contact surface.
So you can 'legally' stack two transparent bricks or plates together.
They might want to fuse, but I've not seen these to be too hard to detach.
What you should not do, is to insert a transparent bar in a transparent cone.
They fuse together rather soon.
The only hazard would be that you can't detach the bricks anymore. So feel
free to do whatever your fantasy leads you to. Only if you are making a professional
design for others to build, you should think of these issues of what is 'legal'.
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And if you want to know WHY (some of)¹ the builds in the post your refer are
illegal, search for Jamie Berard’s presentation “Stressing the Elements.”
(¹ Not all are illegal, some are just flimsy, some are totally legal.)
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| | | | | | | | | Author: | tec | | Posted: | Feb 15, 2021 05:54 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 37 times | | Topic: | Colors | |
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| Found it! There is 1 slide on trans*
Still, Jamie's bond is a phisical one, e.g. high friction. no chemistry.
I'm still puzzled in someone can make chemical bonds by hard-pressing 2 pieces
together... that would be new to me.
In Colors, SylvainLS writes:
| | In Colors, hpoort writes:
| | In Colors, tec writes:
Just recently LEGO has changed the type of plastic used for transparent bricks;
with this new type the problem does not occur anymore.
Stud on antistud generally is not a problem, as there is little contact surface.
So you can 'legally' stack two transparent bricks or plates together.
They might want to fuse, but I've not seen these to be too hard to detach.
What you should not do, is to insert a transparent bar in a transparent cone.
They fuse together rather soon.
The only hazard would be that you can't detach the bricks anymore. So feel
free to do whatever your fantasy leads you to. Only if you are making a professional
design for others to build, you should think of these issues of what is 'legal'.
|
And if you want to know WHY (some of)¹ the builds in the post your refer are
illegal, search for Jamie Berard’s presentation “Stressing the Elements.”
(¹ Not all are illegal, some are just flimsy, some are totally legal.)
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| | | | | | | | | | | Author: | LegoLDK | | Posted: | Feb 15, 2021 07:37 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 32 times | | Topic: | Colors | |
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| So is the problem with #7 just that it is stood on end?
The actual combining of the bricks is all standard isn't it?
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| | | | | | | | | | | Author: | SylvainLS | | Posted: | Feb 15, 2021 07:45 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 40 times | | Topic: | Colors | |
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| In Colors, tec writes:
| | Found it! There is 1 slide on trans*
Still, Jamie's bond is a phisical one, e.g. high friction. no chemistry.
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Depends what you call a “physical bond.” There are stronger chemical bonds (covalence…)
and weaker ones (Van der Waals…).
Here, it’s not only (static) friction, it’s adhesion.
And a chemist would say everything is chemistry https://xkcd.com/435/ 
| | I'm still puzzled in someone can make chemical bonds by hard-pressing 2 pieces
together... that would be new to me.
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Never heard about cold welding?
(Not what happens here but it’s “creating a chemical bond by hard-pressing two
pieces together”  )
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| | | | | | | | | | | | | Author: | tec | | Posted: | Feb 15, 2021 08:48 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 34 times | | Topic: | Colors | |
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| On my way to https://en.wikipedia.org/wiki/Cold_welding
Thanks for the hint
In Colors, SylvainLS writes:
| | In Colors, tec writes:
| | Found it! There is 1 slide on trans*
Still, Jamie's bond is a phisical one, e.g. high friction. no chemistry.
|
Depends what you call a “physical bond.” There are stronger chemical bonds (covalence…)
and weaker ones (Van der Waals…).
Here, it’s not only (static) friction, it’s adhesion.
And a chemist would say everything is chemistry https://xkcd.com/435/
| | I'm still puzzled in someone can make chemical bonds by hard-pressing 2 pieces
together... that would be new to me.
|
Never heard about cold welding?
(Not what happens here but it’s “creating a chemical bond by hard-pressing two
pieces together” )
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| | | | | | | Author: | tec | | Posted: | Feb 15, 2021 05:46 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 36 times | | Topic: | Colors | |
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| I'm found a counterexample, in 2009
So the tran-clear plates (see the water) are now bonded together?
After 11 years, someone should verify...
In Colors, hpoort writes:
| | In Colors, tec writes:
Just recently LEGO has changed the type of plastic used for transparent bricks;
with this new type the problem does not occur anymore.
Stud on antistud generally is not a problem, as there is little contact surface.
So you can 'legally' stack two transparent bricks or plates together.
They might want to fuse, but I've not seen these to be too hard to detach.
What you should not do, is to insert a transparent bar in a transparent cone.
They fuse together rather soon.
The only hazard would be that you can't detach the bricks anymore. So feel
free to do whatever your fantasy leads you to. Only if you are making a professional
design for others to build, you should think of these issues of what is 'legal'.
|
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| | | | | Author: | Teup | | Posted: | Feb 14, 2021 13:52 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 37 times | | Topic: | Colors | |
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| In Colors, tec writes:
What's wrong with #7? (or #8, or #9?)
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| | | | | | | Author: | SylvainLS | | Posted: | Feb 14, 2021 14:11 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 38 times | | Topic: | Colors | |
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| In Colors, Teup writes:
| | In Colors, tec writes:
What's wrong with #7? (or #8, or #9?)
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Nothing. The post is an accumulation of building techniques, some of them illegal,
some of them flimsy, some of them totally legal.
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| | | | | | | | | Author: | Teup | | Posted: | Feb 14, 2021 14:20 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 48 times | | Topic: | Colors | |
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| In Colors, SylvainLS writes:
| | In Colors, Teup writes:
| | In Colors, tec writes:
What's wrong with #7? (or #8, or #9?)
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Nothing. The post is an accumulation of building techniques, some of them illegal,
some of them flimsy, some of them totally legal.
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"The issue with this is that there will be great strain placed on the pieces
since they are not meant to be combined this way."
Apparently, you're not supposed to make a roof out of cheese slopes. Who
knew  
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| | | | | | | | | | | Author: | yorbrick | | Posted: | Feb 14, 2021 14:40 | | Subject: | Re: transparent colors chemically react - now wha | | Viewed: | 44 times | | Topic: | Colors | |
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| In Colors, Teup writes:
| | In Colors, SylvainLS writes:
| | In Colors, Teup writes:
| | In Colors, tec writes:
What's wrong with #7? (or #8, or #9?)
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Nothing. The post is an accumulation of building techniques, some of them illegal,
some of them flimsy, some of them totally legal.
|
"The issue with this is that there will be great strain placed on the pieces
since they are not meant to be combined this way."
Apparently, you're not supposed to make a roof out of cheese slopes. Who
knew
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Putting a 1x1 cheese slope on any stud is enough to crack it. Sometimes I think
looking at them is enough.
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Italy, Marche
Netherlands, Groningen
France, Nouvelle-Aquitaine
United Kingdom, England
