The new receiver for my entertainment centre is 20Kg or about 45 pounds. I'd
like to have all the components supported by some type of lexan or
plexiglass or similar product. Which of these products are the strongest and
able to exist as a 19" span and be able to support this 45 pound AV receiver
using brass shelving supports and sleeves?
http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,43649&ap=1
On Sun, 25 May 2008 19:07:15 -0500, "Upscale" <[email protected]>
wrote:
>The new receiver for my entertainment centre is 20Kg or about 45 pounds. I'd
>like to have all the components supported by some type of lexan or
>plexiglass or similar product. Which of these products are the strongest and
>able to exist as a 19" span and be able to support this 45 pound AV receiver
>using brass shelving supports and sleeves?
>
>http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,43649&ap=1
>
Lexan is probably stronger for the same thickness, but is also more
expensive. You need to discuss this with a supplier - material
thickness needed for X weight over Y span.
John
On May 28, 2:37 pm, "Dave in Houston" <[email protected]> wrote:
> "charlie" <[email protected]> wrote in message
>
> news:e7fd4819-f58c-4c7b-8091-4cadf75f7ec5@k13g2000hse.googlegroups.com...
>
> > On May 28, 2:06 pm, "Upscale" <[email protected]> wrote:
> >> "Myxylplyk" <[email protected]> wrote in message
> >> > You want clear shelving with no sag and heat resistance. (Stero equip.
> >> > throws some heat)
>
> >> > tempered safety glass, pencil polished edges
>
> >> And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was
> >> quoted
> >> from $50 per piece all the way up to $135 per piece with a two week
> >> delivery
> >> time.
>
> The two week delivery time is because the glass has to get cut before it
> gets tempered. You can't cut tempered glass.
> I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
>
> >> quote me the wrong price considering how much cheaper he was than
> >> everyone
> >> else.
>
> > can you cut thick glass? look for old dining room tabletops in yard
> > sales. i
> > just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
> > gray
> > even. you can use a silicon carbide belt in a beltsander (with a very
> > light
> > touch) to break the sharp edges. do that on a windy day, standing
> > upwind.
>
> Repeat: You can't cut tempered glass.
>
> Dave in Houston
dining room tabletops aren't tempered, so i'm not quite sure what your
statement is referring to.
i submit that 1/2" glass isn't going to be broken with normal means.
without special breakers, one would be hard pressed to break .5", let
alone .75", thick glass. i've scored that thickness glass, placed a
dowel under the break, and jumped on the end without having it break.
On May 25, 8:01 pm, John <[email protected]> wrote:
> On Sun, 25 May 2008 19:07:15 -0500, "Upscale" <[email protected]>
> wrote:
>
> >The new receiver for my entertainment centre is 20Kg or about 45 pounds. I'd
> >like to have all the components supported by some type of lexan or
> >plexiglass or similar product. Which of these products are the strongest and
> >able to exist as a 19" span and be able to support this 45 pound AV receiver
> >using brass shelving supports and sleeves?
>
> >http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,4...
>
> Lexan is probably stronger for the same thickness, but is also more
> expensive. You need to discuss this with a supplier - material
> thickness needed for X weight over Y span.
>
> John
You may want to consider some design techniques with Lexan.
Two ideas that come to mind are:
A) Arrange for a support along the 19" span at the back side of the
shelves even if this means providing a vertical column in the shelf
design at the back. There are ways to make such things look rather
slick in a design. I've even seen taught vertical cables used.
B) Consider hot forming a front side lip on the Lexan that acts as a
right angle stiffener.
- mkaras
"charlie" <[email protected]> wrote in message
> can you cut thick glass? look for old dining room tabletops in yard
> just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
Possibly, but one of the greatest detriments to my using a wheelchair is not
being able to get around easily to get to things ~ like yard sales. All in
all, it's easier and much less time consuming to just buy something. I don't
like it, but there it is. It is a confirmed fact that's it's considerably
more expensive to have a disability than not. I wouldn't have thought much
about it before being in the chair, but it surely hits me right in the
forehead now.
"Upscale" <[email protected]> wrote in message
news:[email protected]...
> The new receiver for my entertainment centre is 20Kg or about 45 pounds.
> I'd
> like to have all the components supported by some type of lexan or
> plexiglass or similar product. Which of these products are the strongest
> and
> able to exist as a 19" span and be able to support this 45 pound AV
> receiver
> using brass shelving supports and sleeves?
>
> http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,43649&ap=1
>
>
You want clear shelving with no sag and heat resistance. (Stero equip.
throws some heat)
tempered safety glass, pencil polished edges
:)
Myx
On Wed, 28 May 2008 19:00:10 -0500, "Upscale" <[email protected]>
wrote:
>
>"charlie" <[email protected]> wrote in message
>> have your neighbor look for things? i have a set of people who look
>> for kilns and other glass or ceramic related items in local yard
>> sales, and they call me up if they find anything interesting.
>
>It's a possibility and maybe I'll look around a bit. In all honesty though,
>I'm not sure I want to. At least not for supporting my new 45 pound AV
>receiver that cost me over $1800. I'd have a coronary if the thing dropped
>through some recycled glass because I was too cheap to buy the tempered
>stuff. Of course, the rest of the components aren't near as heavy, so what
>you suggest may be a viable option.
>
The only difference is the tempered glass would be in about 10,000
peices insted of just a hundred - - - - .
** Posted from http://www.teranews.com **
"Doug Winterburn" <[email protected]> wrote in message
> They do have other sizes, up to 48" x 96".
Sure, I know that. A little online research showed polycarbonate to be
exceptionally strong, so I'm trying to find some place local to me in
Toronto that has it.
On May 25, 7:07 pm, "Upscale" <[email protected]> wrote:
> The new receiver for my entertainment centre is 20Kg or about 45 pounds. I'd
> like to have all the components supported by some type of lexan or
> plexiglass or similar product. Which of these products are the strongest and
> able to exist as a 19" span and be able to support this 45 pound AV receiver
> using brass shelving supports and sleeves?
>
> http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,4...
Visit or call a mid-level furniture store (c.f. Ashley in the
midwest) and see what they have for entertainment centers. Assuming
you are talking about standard width receiver, then standard width
entertainment centers should have standard width glass (around
21-1/2"). It's likely that they can sell you replacement glass for a
given model of entertainment center. If the glass is a little
narrow, then trim the left and right edges with wood. Just an
idea.... doesn't cost more than a couple of phone calls.
hex
-30-
On Wed, 28 May 2008 14:17:10 -0700 (PDT), charlie
<[email protected]> wrote:
>On May 28, 2:06 pm, "Upscale" <[email protected]> wrote:
>> "Myxylplyk" <[email protected]> wrote in message
>> > You want clear shelving with no sag and heat resistance. (Stero equip.
>> > throws some heat)
>>
>> > tempered safety glass, pencil polished edges
>>
>> And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was quoted
>> from $50 per piece all the way up to $135 per piece with a two week delivery
>> time. I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
>> quote me the wrong price considering how much cheaper he was than everyone
>> else.
>
>can you cut thick glass? look for old dining room tabletops in yard
>sales. i
>just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
>gray
>even. you can use a silicon carbide belt in a beltsander (with a very
>light
>touch) to break the sharp edges. do that on a windy day, standing
>upwind.
>
>regards,
>charlie
>http://glassartists.org/ChaniArts
As long as it's not tempered - which MOST glass table tops are (and
the MUST be to be legally sold here)
** Posted from http://www.teranews.com **
In article <[email protected]>,
[email protected] says...
> The new receiver for my entertainment centre is 20Kg or about 45 pounds. I'd
> like to have all the components supported by some type of lexan or
> plexiglass or similar product. Which of these products are the strongest and
> able to exist as a 19" span and be able to support this 45 pound AV receiver
> using brass shelving supports and sleeves?
>
> http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,43649&ap=1
>
I can virtually guarantee that 1/4" plexiglass would bend very
badly, if gradually. I built a case for a turntable from that
stuff once and it could not support the weight of the (heavy)
turntable for long until it deformed. You may need to glue some
vertical supports underneath to strenghen it. No idea what
thickness would be sufficient for the weight you have there,
but I think it'd be hefty.
-P.
--
=========================================
firstname dot lastname at gmail fullstop com
Upscale wrote:
> "Doug Winterburn" <[email protected]> wrote in message
>> A 12" x 48" runs $112, but you could get several shelves out of it. I
>> would think 1/2" in a 19" span would do the job, particularly since the
>> feet of the receiver will be close to the support pegs. If it sags
>> slightly over time and gets on your nerves, flip it over.
>
> The receiver is about 17"x17" so 12"x48" isn't wide enough, but I'm still
> considering something similar. The greatest benefit is that it would be much
> lighter.
>
>
They do have other sizes, up to 48" x 96".
"mkaras" <[email protected]> wrote in message
news:1f145957-e30e-41e7-bb67-10c79e09fba6@p25g2000pri.googlegroups.com...
> On May 25, 8:01 pm, John <[email protected]> wrote:
>> On Sun, 25 May 2008 19:07:15 -0500, "Upscale" <[email protected]>
>> wrote:
>>
>> >The new receiver for my entertainment centre is 20Kg or about 45 pounds.
>> >I'd
>> >like to have all the components supported by some type of lexan or
>> >plexiglass or similar product. Which of these products are the strongest
>> >and
>> >able to exist as a 19" span and be able to support this 45 pound AV
>> >receiver
>> >using brass shelving supports and sleeves?
>>
>> >http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,4...
>>
>> Lexan is probably stronger for the same thickness, but is also more
>> expensive. You need to discuss this with a supplier - material
>> thickness needed for X weight over Y span.
>>
>> John
>
> You may want to consider some design techniques with Lexan.
>
> Two ideas that come to mind are:
>
> A) Arrange for a support along the 19" span at the back side of the
> shelves even if this means providing a vertical column in the shelf
> design at the back. There are ways to make such things look rather
> slick in a design. I've even seen taught vertical cables used.
>
> B) Consider hot forming a front side lip on the Lexan that acts as a
> right angle stiffener.
>
> - mkaras
Actually, Lexan (polycarbonite) cold forms...Pexiglas (acrylic) uses heat
for forming.
Lexan doesn't like heat...looks like a sheet of hard pudding...like my
ex-wife used to make.
Mike
"Doug Winterburn" <[email protected]> wrote in message
>
> A 12" x 48" runs $112, but you could get several shelves out of it. I
> would think 1/2" in a 19" span would do the job, particularly since the
> feet of the receiver will be close to the support pegs. If it sags
> slightly over time and gets on your nerves, flip it over.
The receiver is about 17"x17" so 12"x48" isn't wide enough, but I'm still
considering something similar. The greatest benefit is that it would be much
lighter.
"hex" <[email protected]> wrote in message
> Visit or call a mid-level furniture store (c.f. Ashley in the
> midwest) and see what they have for entertainment centers. Assuming
> you are talking about standard width receiver, then standard width
> entertainment centers should have standard width glass (around
> 21-1/2").
I ended up buying a full sheet of tinted 3/8" acrylic. Once the total square
footage of shelving exceeded 50% of a 4x8 sheet, it was cheaper to just buy
the full sheet. I asked about lexan and the salesman was confident that the
acrylic would support my 50 pound receiver with the dimensions that I gave
him. Total cost including cutting, and polishing of the front side of the
shelf sections with taxes included was $339.00. Not cheap, but considerably
cheaper than the lexan would have been and most certainly lighter than glass
would have been.
On May 28, 3:43 pm, "Upscale" <[email protected]> wrote:
> "charlie" <[email protected]> wrote in message
> > can you cut thick glass? look for old dining room tabletops in yard
> > just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
>
> Possibly, but one of the greatest detriments to my using a wheelchair is not
> being able to get around easily to get to things ~ like yard sales. All in
> all, it's easier and much less time consuming to just buy something. I don't
> like it, but there it is. It is a confirmed fact that's it's considerably
> more expensive to have a disability than not. I wouldn't have thought much
> about it before being in the chair, but it surely hits me right in the
> forehead now.
have your neighbor look for things? i have a set of people who look
for kilns and other glass or ceramic related items in local yard
sales, and they call me up if they find anything interesting.
thick glass is pretty heavy and you do need special tools to cut and
handle it, so yes, it'll be easier to purchase it premade directly.
otoh, a stained glass store may be able to cut down a tabletop if one
was delivered to them by a helpful assistant. i doubt that the glass
shop you approached would do this; they'd want to sell you the new
glass instead of recycled.
btw: another good place is craigslist. i see glass shelves (and
tabletops too) on my local frequently that come out of store closings.
perhaps something close enough in size would do.
"Myxylplyk" <[email protected]> wrote in message
> You want clear shelving with no sag and heat resistance. (Stero equip.
> throws some heat)
>
> tempered safety glass, pencil polished edges
And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was quoted
from $50 per piece all the way up to $135 per piece with a two week delivery
time. I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
quote me the wrong price considering how much cheaper he was than everyone
else.
"charlie" <[email protected]> wrote in message
> have your neighbor look for things? i have a set of people who look
> for kilns and other glass or ceramic related items in local yard
> sales, and they call me up if they find anything interesting.
It's a possibility and maybe I'll look around a bit. In all honesty though,
I'm not sure I want to. At least not for supporting my new 45 pound AV
receiver that cost me over $1800. I'd have a coronary if the thing dropped
through some recycled glass because I was too cheap to buy the tempered
stuff. Of course, the rest of the components aren't near as heavy, so what
you suggest may be a viable option.
On May 28, 2:06 pm, "Upscale" <[email protected]> wrote:
> "Myxylplyk" <[email protected]> wrote in message
> > You want clear shelving with no sag and heat resistance. (Stero equip.
> > throws some heat)
>
> > tempered safety glass, pencil polished edges
>
> And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was quoted
> from $50 per piece all the way up to $135 per piece with a two week delivery
> time. I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
> quote me the wrong price considering how much cheaper he was than everyone
> else.
can you cut thick glass? look for old dining room tabletops in yard
sales. i
just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
gray
even. you can use a silicon carbide belt in a beltsander (with a very
light
touch) to break the sharp edges. do that on a windy day, standing
upwind.
regards,
charlie
http://glassartists.org/ChaniArts
Upscale wrote:
> "charlie" <[email protected]> wrote in message
>> have your neighbor look for things? i have a set of people who look
>> for kilns and other glass or ceramic related items in local yard
>> sales, and they call me up if they find anything interesting.
>
> It's a possibility and maybe I'll look around a bit. In all honesty though,
> I'm not sure I want to. At least not for supporting my new 45 pound AV
> receiver that cost me over $1800. I'd have a coronary if the thing dropped
> through some recycled glass because I was too cheap to buy the tempered
> stuff. Of course, the rest of the components aren't near as heavy, so what
> you suggest may be a viable option.
>
>
These guys have lexan in 1/2" thick sheets:
http://www.professionalplastics.com/LEXANSHEET9034
A 12" x 48" runs $112, but you could get several shelves out of it. I
would think 1/2" in a 19" span would do the job, particularly since the
feet of the receiver will be close to the support pegs. If it sags
slightly over time and gets on your nerves, flip it over.
Peter Huebner wrote:
> In article <[email protected]>,
> [email protected] says...
>> The new receiver for my entertainment centre is 20Kg or about 45
>> pounds. I'd like to have all the components supported by some type
>> of lexan or plexiglass or similar product. Which of these products
>> are the strongest and able to exist as a 19" span and be able to
>> support this 45 pound AV receiver using brass shelving supports and
>> sleeves?
>>
>> http://www.leevalley.com/hardware/page.aspx?c=1&p=52895&cat=3,43648,43649&ap=1
>>
>
> I can virtually guarantee that 1/4" plexiglass would bend very
> badly, if gradually. I built a case for a turntable from that
> stuff once and it could not support the weight of the (heavy)
> turntable for long until it deformed. You may need to glue some
> vertical supports underneath to strenghen it. No idea what
> thickness would be sufficient for the weight you have there,
> but I think it'd be hefty.
Tempered glass is probably a better bet if you want that look--it will
either carry the load or break but it's not going to sag noticeably,
public-education notions about "supercooled liquid that creeps slowly"
notwithstanding. But 1/4 inch is going to be too thin regardless.
Lexan has about 60 percent of the elastic modulus of MDF, acrylic
about 80 percent, glass is about ten times higher (all _very_
approximate).
The Sagulator http://www.woodbin.com/calcs/sagulator.htm will let you
easily calculate approximate sag for many kinds of wood and for
glass--it doesn't have acrylic or polycarbonate, but if you use
"MDF-LD" I don't think you'll be too far wrong for those materials.
--
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)
<clare at snyder dot ontario dot canada> wrote in message
news:[email protected]...
> On Wed, 28 May 2008 14:17:10 -0700 (PDT), charlie
> <[email protected]> wrote:
>
>>On May 28, 2:06 pm, "Upscale" <[email protected]> wrote:
>>> "Myxylplyk" <[email protected]> wrote in message
>>> > You want clear shelving with no sag and heat resistance. (Stero equip.
>>> > throws some heat)
>>>
>>> > tempered safety glass, pencil polished edges
>>>
>>> And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was
>>> quoted
>>> from $50 per piece all the way up to $135 per piece with a two week
>>> delivery
>>> time. I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
>>> quote me the wrong price considering how much cheaper he was than
>>> everyone
>>> else.
>>
>>can you cut thick glass? look for old dining room tabletops in yard
>>sales. i
>>just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
>>gray
>>even. you can use a silicon carbide belt in a beltsander (with a very
>>light
>>touch) to break the sharp edges. do that on a windy day, standing
>>upwind.
>>
>>regards,
>>charlie
>>http://glassartists.org/ChaniArts
> As long as it's not tempered - which MOST glass table tops are (and
> the MUST be to be legally sold here)
>
> ** Posted from http://www.teranews.com **
in the US, only outside patio table glass tops are tempered. normal dining
room tabletops are almost never tempered. i've never run into one, never
heard of one, and i've cut up a lot of them. for that matter, would you want
a dining tabletop to shatter if you dropped a knife on the edge? i tend to
doubt it.
"Upscale" wrote:
> Sure, I know that. A little online research showed polycarbonate to
> be
> exceptionally strong, so I'm trying to find some place local to me
> in
> Toronto that has it.
SFWIW:
While very strong, Lexan will scratch and price will be tied to crude
oil.
Might take a look at 1/2" laminated safety glass, cut to size with a
water jet.
That way, edges will be polished.
HEAVY, but very strong.
Have fun.
Lew
"charlie" <[email protected]> wrote in message
news:e7fd4819-f58c-4c7b-8091-4cadf75f7ec5@k13g2000hse.googlegroups.com...
> On May 28, 2:06 pm, "Upscale" <[email protected]> wrote:
>> "Myxylplyk" <[email protected]> wrote in message
>> > You want clear shelving with no sag and heat resistance. (Stero equip.
>> > throws some heat)
>>
>> > tempered safety glass, pencil polished edges
>>
>> And expensive. For tempered safety glass, 20.75" x 17" x 3/8" I was
>> quoted
>> from $50 per piece all the way up to $135 per piece with a two week
>> delivery
>> time.
The two week delivery time is because the glass has to get cut before it
gets tempered. You can't cut tempered glass.
I'm going to check out the $50 guy tomorrow. I'm hoping he didn't
>> quote me the wrong price considering how much cheaper he was than
>> everyone
>> else.
>
> can you cut thick glass? look for old dining room tabletops in yard
> sales. i
> just bought a 4'x6'x.75" tabletop for $20. not a scratch on it. tinted
> gray
> even. you can use a silicon carbide belt in a beltsander (with a very
> light
> touch) to break the sharp edges. do that on a windy day, standing
> upwind.
Repeat: You can't cut tempered glass.
Dave in Houston