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Building a Custom Bowl

Blogs > Bockit
Post a Reply
Bockit
Profile Blog Joined November 2004
Sydney2287 Posts
Last Edited: 2008-05-06 04:45:45
May 06 2008 04:21 GMT
#1
Yes, literally, I'm trying to build a bowl, and I'm looking for some advice/help.

This is however, no ordinary bowl. It needs to:
  • Have a hole in the bottom that we can insert a small propellor into, that would then be attached to a motor.
  • Be circular, however one 'side' needs to be flat, as it will be placed flush against a wall. So it needs to be as if we cut off a section of the bowl.
  • Be watertight once we attach the propellor/motor.


As background, this is part of a digital/physical installation a group of students and I are making for an assignment. Basically we are planning to find a big bowl and then cut it, however worst case scenario is that we can't find one so I'm asking for advice/ideas on how we'd go about building one in that case.

So yeah, any reccomendations on materials, etc would be awesome


Oh, also needs to be relatively large, maybe looking for 1-2m diameter and 30-50cm deep.


EDIT: Here's a basic pic of what we are looking for.

[image loading]


Their are four errors in this sentance.
Steelflight-Rx
Profile Blog Joined July 2007
United States1389 Posts
May 06 2008 04:35 GMT
#2
obligatory "best blog ever" post
yubee wrote: you know? it's a great night you should all smile no matter what harddships, because grass grows and the sky is blue and it's a good life.
Lemonwalrus
Profile Blog Joined August 2006
United States5465 Posts
Last Edited: 2008-05-06 04:40:20
May 06 2008 04:37 GMT
#3
Do you think you could mspaint up a rough outline of what you are talking about with the cutting? I can not picture it at all. Also, 1-2m is a really big freaking bowl.

Edit: Actually, unless other people want it, you can scratch the mspaint thing, I am going to sleep anyways. Good luck.
Bockit
Profile Blog Joined November 2004
Sydney2287 Posts
May 06 2008 04:46 GMT
#4
Good point, I've updated the OP with a picture, sorry I didn't check back quickly, we're in class doing presentations atm heh.
Their are four errors in this sentance.
Nitrogen
Profile Blog Joined February 2008
United States5345 Posts
May 06 2008 04:58 GMT
#5
wat
UNFUCK YOURSELF
MarklarMarklar
Profile Blog Joined August 2007
Fiji1823 Posts
May 06 2008 05:28 GMT
#6
thought this thread was about some weed smoking device
hello there
gusbear
Profile Blog Joined September 2004
333 Posts
May 06 2008 06:06 GMT
#7
does it need to be transparent? i dont think it is easy to find a spherical bowl of that size. Perhaps you could use one of those huge excercise balls as a mold for a fiberglass contruction. Contact some people who make fiberglass boats/canoes to do the job for you if you are not confident doing it yourself.
VIB
Profile Blog Joined November 2007
Brazil3567 Posts
Last Edited: 2008-05-06 07:29:05
May 06 2008 07:25 GMT
#8
I have no idea what do you mean with "bottom" or "side" or part is "30-50cm deep" or what size is the hole if you don't tell us exactly what it is. I can imagine thousands of different things that would fit in your description. Just put all the info in the picture already.

And I can't tell you what a good material is if I don't know what is gonna happen to it. Does it need some heat resistance? How much? Does it need to be strong? How much? Are you gonna burn it? Electro-shock it? Put an elephant on top of it? Eat it with cereals?
Great people talk about ideas. Average people talk about things. Small people talk about other people.
Bockit
Profile Blog Joined November 2004
Sydney2287 Posts
Last Edited: 2008-05-06 09:09:52
May 06 2008 09:07 GMT
#9
Ok, sorry if I had a lack of details before, I'll explain now I'm out of class and back home.

Basically the brief is, make a digital/physical installation to place into the new library being built on campus. There are 10 groups of 3 in the class and best one gets in. A lot of the stuff people are coming up with is pretty wanky stuff that you'd expect from a class of 'designers', and tbh I don't even know what to classify ours as. An early picture of our concept is this:

[image loading]


There have been some small changes to the concept since it's inception, bringin a more recent and technical drawing to this:

[image loading]

The blue-grey colour is the bowl, and the black circle is the hole which the propellor will be shoved through.

If you want I can explain everything, but suffice to say that what's gonna happen to it is that it will be filled with water, which will spin around inside the bowl every 10-20 seconds due to the propellor spinning for a small period of time every 10-20 seconds. It will also have a constant vertical projection onto the water/bowl.

Hope that further explains what we're trying to do. Thanks for any help!

EDIT: The drawings aren't perfectly to scale or anything, by depth I mean from the top of the bowl to the bottom in the center. The side is the part of the bowl that will touch the wall.
Their are four errors in this sentance.
Bockit
Profile Blog Joined November 2004
Sydney2287 Posts
May 06 2008 09:10 GMT
#10
On May 06 2008 15:06 gusbear wrote:
does it need to be transparent? i dont think it is easy to find a spherical bowl of that size. Perhaps you could use one of those huge excercise balls as a mold for a fiberglass contruction. Contact some people who make fiberglass boats/canoes to do the job for you if you are not confident doing it yourself.


Thanks for the advice I'll def look into that.
Their are four errors in this sentance.
bustaBust
Profile Blog Joined December 2006
Canada469 Posts
May 06 2008 09:33 GMT
#11
This thread has made a lot of stoner's disappointed.
gusbear
Profile Blog Joined September 2004
333 Posts
May 06 2008 13:12 GMT
#12
ok the new pics was totally not what i had imagined. It looks like your in need of a shallow basin rather than a bowl so maybe kitchen or bathroom suppliers have something you might be able to use.

Also, if its going to be placed in a library i doubt they would allow you to make it a water feature due to the humidity and risk of mould growing in the books.

i dont understand what you mean by a constant vertical projection into the water.. you mean projecting an image into the basin from above?

And lastly, if you want to achieve some ripples in the water it may be easier to make a vibrating diaphram (like a loudspeaker) instead of a hole with a propeller i imagine it would look less conspicous and much easier to get the water seal done. Alternatively you can send vibrations from the side or just virbrate the entire dish.
VIB
Profile Blog Joined November 2007
Brazil3567 Posts
May 06 2008 14:29 GMT
#13
On May 06 2008 22:12 gusbear wrote:
ok the new pics was totally not what i had imagined. It looks like your in need of a shallow basin rather than a bowl so maybe kitchen or bathroom suppliers have something you might be able to use.
I totally agree here. It looks just like a bathroom sink If you look for bathroom suppliers you might as well find something ready that fits your purpose and you won't even need to build one. Which would save you some money and time.
Great people talk about ideas. Average people talk about things. Small people talk about other people.
Bockit
Profile Blog Joined November 2004
Sydney2287 Posts
May 06 2008 16:12 GMT
#14
On May 06 2008 22:12 gusbear wrote:
ok the new pics was totally not what i had imagined. It looks like your in need of a shallow basin rather than a bowl so maybe kitchen or bathroom suppliers have something you might be able to use.

Also, if its going to be placed in a library i doubt they would allow you to make it a water feature due to the humidity and risk of mould growing in the books.

i dont understand what you mean by a constant vertical projection into the water.. you mean projecting an image into the basin from above?


Haha sorry I probably didn't describe it very well in the op. Yeah that's one thing we're looking into for buying something (basin idea). as I said in the OP this post is mainly so that if we can't find anything suitable we have a backup.

As for the water aspect, that's a valid concern and we were worried about it too so we checked with the library and they were fine with it. And yeah "projecting an image into the basin from above" that's what I mean.

On May 06 2008 22:12 gusbear wrote:
And lastly, if you want to achieve some ripples in the water it may be easier to make a vibrating diaphram (like a loudspeaker) instead of a hole with a propeller i imagine it would look less conspicous and much easier to get the water seal done. Alternatively you can send vibrations from the side or just virbrate the entire dish.


We wanted a spinning effect, however this might be more effective so I'll bring this up with the others tomorrow.

On May 06 2008 23:29 VIB wrote:
Show nested quote +
On May 06 2008 22:12 gusbear wrote:
ok the new pics was totally not what i had imagined. It looks like your in need of a shallow basin rather than a bowl so maybe kitchen or bathroom suppliers have something you might be able to use.
I totally agree here. It looks just like a bathroom sink If you look for bathroom suppliers you might as well find something ready that fits your purpose and you won't even need to build one. Which would save you some money and time.


Yeah, same as I just said a bit earlier, that's one thing we're looking into before we go ahead and build this, I'm just making sure we have a backup.

Thanks everyone for your help!
Their are four errors in this sentance.
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