类型: IC
作者: granatenheinz
发布时间: 2021-11-08
11:25:56
更新时间: 2021-11-08 11:25:56
原链接:
https://geekhack.org/index.php?topic=115247.0
Have you ever dreamed of beating a burglar to death with
your keyboard?
Even if you didn’t it might be worth to
look at my full concrete keyboard set!
Jokes aside, Hi
and welcome to my first ever geekhack IC! I am more than
proud to present you today my full concrete keyboard set
that I produced and now plan to produce for all of you if
there is some interest in the project.
What I will
present you today is set (case, wristrest and mousepad) made
out of solid concrete. Lets start off with some pictures of
my real prototypes:
Now lets focus for a bit on concrete and why I chose
it as a material:
Technical insights:
What kind of concrete is used?
I use self-compacting glass fiber reinforced fine
concrete approx. 70N/mm² compressive strength. Standard
concrete averages approx. 35N/mm². In the picture below you
can see a cross-section of the used concrete. As you can
observe there are no air inclusions in that special concrete
which of course increases stability.
What is so special about concrete?
Concrete has very high damping properties, which are
used, for example, in hi-fi loudspeakers and machine beds.
On the one hand, the minimal vibration or oscillation
absorption of concrete, in contrast to wood, results in a
much clearer sound image in the higher tonal range of hi-fi
loudspeakers, such as classical music. On the other hand,
this warm, vulominous sound depth, as known from other
resonating speaker materials such as wood, is greatly
reduced in bass-heavy electronic music. On the other hand,
in the case of machine beds for industrial production
facilities, the higher damping compared to the otherwise
usual steel constructions increases the processing
accuracy.
Surface treatment:
All
the products are finished with a tough, silky, water-based
wax emulsion as standard. For cleaning, it is best to use
only warm water, with a little detergent if necessary.
Similar to furniture made of wood. Harsh detergents such as
acids or vinegar, because they react with the cement, can
cause the surface to dissolve. Must therefore be avoided at
all costs. For subsequent care, beeswax or canauba wax,
which is also used for wooden furniture, has proven
successful in our case.What you should know is that through
secretions of our skin-protecting fats, etc., a very
personal patina will gradually form at the points of contact
of the concrete enclosures.
How does the production
look like?
All our products are 100% handmade, built
and designed MADE IN GERMANY. Every single one delivered
will come with its very own characteristics and will be
absolute unique.
Quality is our number one goal.
You can see additional pictures of my production process
on the already created website:
www.keebconcrete.com
When and how will this product be avaiable?
Now
we come to the fun part. To make this available to all of
you I created the website
www.keebconcrete.com! On this website I will start the pre-order process for
the set in the upcoming weeks. A specific point in time is
not yet defined. Nevertheless the goal is to ship the first
sets in 2021, which is very much achivable.
In the
coming days I will also add updates on the website linked
above plus you are able to reach out to me directly if you
have any kind of question.
To also reach out to me I
have created a Discord server. Feel free to join me here and
to hit me up with all your questions, remarks and
suggestions! Link:
https://discord.gg/DHCR5mwVDD
Are there any other layouts / surfaces / etc.
planned?
Yes! At the moment we are already working on a
acid treated surface. Which will probably look like this.
The left side has been acid treated and the right side is
our “standard” surface.
More layouts will of course follow!
Thanks to
all of you and I hope you enjoy this IC!
BTW: Just saw
the other IC regarding a concrete keyboard case. Just as a
proof, I did my first one already on 11/02/2021
https://www.reddit.com/r/mechmarket/comments/qklibb/ic_concrete_keyboard_set/