My shop has a steel roll-up "garage" door that faces a blistering sun
for several hrs/day. I'm determined to insulate it. The easiest way
I see is to slap some styrofoam shhet insulation onto it.
I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
door.
What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
have a "hot wire" cutting tool.
Thanks a heap,
--Zz
On Jul 4, 9:48=A0am, Larry Jaques <[email protected]> wrote:
> On Sat, 3 Jul 2010 19:30:41 -0700 (PDT), Robatoy
> <[email protected]> wrote the following:
>
>
>
>
>
> >On Jul 3, 10:16=A0pm, Larry Jaques <[email protected]> wrote:
> >> On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
> >> <[email protected]> wrote the following:
>
> >> >a bandsaw, if you don't mind a little dust flying.
>
> >> I wonder how well Toy's FesteringBeast would do on this stuff...
>
> >> --
> >> The most powerful factors in the world are clear ideas
> >> in the minds of energetic men of good will.
> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 --=
J. Arthur Thomson
>
> >Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
> >the time.
> >Then they coat it with stuff to create sculpture. Cuts just fine and
> >you can get some decent detail.
> >http://www.talkshopbot.com/forum/showthread.php?t=3D11116
>
> I wasn't talking about the CNC beast. I was referring to a certain
> TS-55, or was that a 75?
>
I didn't make that plunge yet...get it? Plunge? P L U N G E ??
On Jul 3, 4:40=A0pm, "Tom Dacon" <[email protected]> wrote:
> "Zz Yzx" <[email protected]> wrote in message
>
> news:[email protected]...
>
> > My shop has a steel roll-up "garage" door that faces a blistering sun
> > for several hrs/day. =A0I'm determined to insulate it. =A0The easiest w=
ay
> > I see is to slap some styrofoam shhet insulation onto it.
>
> > I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> > to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> > door.
>
> > What's the best way to cut 1-1/2" or 2" styrofoam sheets? =A0I don't
> > have a "hot wire" cutting tool.
>
> A metal straight-edge and a thin-bladed knife such as a fish-filleting kn=
ife
> or a carving knife,
> with the styrofoam backed up by a piece of scrap plywood, works just fine=
.
> Watch your fingers. For a 2-inch-thick piece, I take two passes: one abou=
t
> half-way through
> to define the cut, and then another one to finish it off.
>
> You can also cut it about half-way through as described above and then ju=
st
> crack it
> along the cut, if you don't mind a little imprecision in the dimensions.
This is what I do, with an Olfa-type retractable-blade utility knife
(aka box cutter of 9/11 fame) with the blade mostly all out. Either
snap the board after the first cut or go through 2-3 times.
My brother uses the fancy Italian sliding table panel saw in his
millwork shop. :-(
> I'd get "blue-board" if I were you, rather than that white styrofoam.
> Better insulation, cleaner to cut and trim.
Like Tom says, the blue (or pink) extruded polystyrene, not the white
bead-board.
Luigi
"Greg O" <[email protected]> wrote in
news:[email protected]:
> I don't recommend it, but years ago I needed to rip up a bunch of 1
> 1/2" foam into 6"x12" blocks. I used my table saw! The foam did bind,
> and kick back once in a while, but when it did jamb, I just let go and
> let 'er fly.
>
>
I'd probably use a junk blade for doing this. Cutting the foam might cause
some melted goo to stick to your blade. (Besides, you don't need a sharp
blade anyway.)
Puckdropper
--
Never teach your apprentice everything you know.
RE: Subject
Find a foam shop in your area.
They use a band saw to cut foam logs to size.
Work na deal and buy a couple of feet of the foam blade, cover the
ends with tape to make handles, put on a pair of gloves and you are
good to go.
You could also modify a bow saw if that makes you happy.
BTDT, forget the T-Shirt
Lew
Doug Houseman <[email protected]> wrote:
> [email protected] (Pinstripe Sniper) wrote:
>> I also used a utility knife, a cheapo disposable retractable, snap off
>> blade type. It also gave me about a 15 degree F reduction during the
>> Summer. (I'm in Vegas)
>>
>> This was a topic several years ago on a newsgroup (I forget which one)
>> and someone raised the issues of fire hazard and fire code. Both may
>> warrant consideration.
>There is hard coat available for foam (the Theater people use it for
>props). It goes on like a thin plaster. Once it is on, you can paint the
>foam as usual. The hard coat makes it somewhat fire resistant (I forget
>the rating, but the building code allows hard coated foam). Hard coat is
>cheap, comes in powder form and gets mixed like a thin plaster. There
>are 3 or 4 formulas, one with fire retardants in it.
Good to know Doug, Thank You. I have considered gluing a sheet of
heavy duty aluminum foil as a facing sheet. I haven't done anything
because angle grinding and welding are done in the backyard at the
open air "hot hut" not in the garage.
PsS
--------------------------------------------------------------------
A fictional account of how to drastically reform the financial world...
More at http://PinstripeSniper.blogspot.com and if that gets banned, check
www.PinstripeSniper.com
Steve Turner <[email protected]> wrote:
>Really? I did it on my garage door with two layers of 3/4" pink foam from HD
>(don't remember the cost) and it's helped immensely. Since 3/4" isn't all that
>thick I just cut the stuff with a utility knife; I'd think cutting it with any
>kind of saw would make a hell of a mess.
I also used a utility knife, a cheapo disposable retractable, snap off
blade type. It also gave me about a 15 degree F reduction during the
Summer. (I'm in Vegas)
This was a topic several years ago on a newsgroup (I forget which one)
and someone raised the issues of fire hazard and fire code. Both may
warrant consideration.
PsS
--------------------------------------------------------------------
A fictional account of how to drastically reform the financial world...
More at http://PinstripeSniper.blogspot.com and if that gets banned, check
www.PinstripeSniper.com
On Jul 3, 10:42=A0pm, "Lobby Dosser" <[email protected]> wrote:
> "Robatoy" <[email protected]> wrote in message
>
> news:9eb3046c-92c8-456c-b4c5-364a50de4d32@u26g2000yqu.googlegroups.com...
> On Jul 3, 10:16 pm, Larry Jaques <[email protected]> wrote:
>
> > On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
> > <[email protected]> wrote the following:
>
> > >a bandsaw, if you don't mind a little dust flying.
>
> > I wonder how well Toy's FesteringBeast would do on this stuff...
>
> > --
> > The most powerful factors in the world are clear ideas
> > in the minds of energetic men of good will.
> > -- J. Arthur Thomson
>
> Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
> the time.
> Then they coat it with stuff to create sculpture. Cuts just fine and
> you can get some decent detail.http://www.talkshopbot.com/forum/showthrea=
d.php?t=3D11116
>
> -------------------------------------------------------------------------=
-- --------
>
> Was the "Expedition" a circumnavigation? :p
=BFqu=E9
On Jul 3, 10:16=A0pm, Larry Jaques <[email protected]> wrote:
> On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
> <[email protected]> wrote the following:
>
> >a bandsaw, if you don't mind a little dust flying.
>
> I wonder how well Toy's FesteringBeast would do on this stuff...
>
> --
> The most powerful factors in the world are clear ideas
> in the minds of energetic men of good will.
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 -- J.=
Arthur Thomson
Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
the time.
Then they coat it with stuff to create sculpture. Cuts just fine and
you can get some decent detail.
http://www.talkshopbot.com/forum/showthread.php?t=3D11116
On Sat, 3 Jul 2010 19:30:41 -0700 (PDT), Robatoy
<[email protected]> wrote the following:
>On Jul 3, 10:16 pm, Larry Jaques <[email protected]> wrote:
>> On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
>> <[email protected]> wrote the following:
>>
>> >a bandsaw, if you don't mind a little dust flying.
>>
>> I wonder how well Toy's FesteringBeast would do on this stuff...
>>
>> --
>> The most powerful factors in the world are clear ideas
>> in the minds of energetic men of good will.
>> -- J. Arthur Thomson
>
>Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
>the time.
>Then they coat it with stuff to create sculpture. Cuts just fine and
>you can get some decent detail.
>http://www.talkshopbot.com/forum/showthread.php?t=11116
I wasn't talking about the CNC beast. I was referring to a certain
TS-55, or was that a 75?
--
It's also helpful to realize that this very body that we have, that's
sitting right here right now, with its aches and its pleasures, is
exactly what we need to be fully human, fully awake, fully alive.
-- Pema Chodron
Even a good hand saw works well.
A utility knife with a snap off blade works well if you keep it sharp.
"Lobby Dosser" <[email protected]> wrote in message
news:[email protected]...
A hacksaw blade also works ok.
"Artemus" <[email protected]> wrote in message
news:[email protected]...
>
> "Zz Yzx" <[email protected]> wrote in message
> news:[email protected]...
>> My shop has a steel roll-up "garage" door that faces a blistering sun
>> for several hrs/day. I'm determined to insulate it. The easiest way
>> I see is to slap some styrofoam shhet insulation onto it.
>>
>> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>> door.
>>
>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>> have a "hot wire" cutting tool.
>>
>> Thanks a heap,
>> --Zz
>
> The best way is a hot wire, but an electric carving knife
> works ok. A serrated bread knife will do in a pinch.
> Art
>
>
In article <[email protected]>,
[email protected] (Pinstripe Sniper) wrote:
> Steve Turner <[email protected]> wrote:
> >Really? I did it on my garage door with two layers of 3/4" pink foam from
> >HD
> >(don't remember the cost) and it's helped immensely. Since 3/4" isn't all
> >that
> >thick I just cut the stuff with a utility knife; I'd think cutting it with
> >any
> >kind of saw would make a hell of a mess.
>
> I also used a utility knife, a cheapo disposable retractable, snap off
> blade type. It also gave me about a 15 degree F reduction during the
> Summer. (I'm in Vegas)
>
> This was a topic several years ago on a newsgroup (I forget which one)
> and someone raised the issues of fire hazard and fire code. Both may
> warrant consideration.
>
>
> PsS
>
> --------------------------------------------------------------------
> A fictional account of how to drastically reform the financial world...
> More at http://PinstripeSniper.blogspot.com and if that gets banned, check
> www.PinstripeSniper.com
There is hard coat available for foam (the Theater people use it for
props). It goes on like a thin plaster. Once it is on, you can paint the
foam as usual. The hard coat makes it somewhat fire resistant (I forget
the rating, but the building code allows hard coated foam). Hard coat is
cheap, comes in powder form and gets mixed like a thin plaster. There
are 3 or 4 formulas, one with fire retardants in it.
In article <[email protected]>,
"Josepi" <[email protected]> wrote:
> Even a good hand saw works well.
>
> A utility knife with a snap off blade works well if you keep it sharp.
>
>
> "Lobby Dosser" <[email protected]> wrote in message
> news:[email protected]...
> A hacksaw blade also works ok.
>
>
> "Artemus" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "Zz Yzx" <[email protected]> wrote in message
> > news:[email protected]...
> >> My shop has a steel roll-up "garage" door that faces a blistering sun
> >> for several hrs/day. I'm determined to insulate it. The easiest way
> >> I see is to slap some styrofoam shhet insulation onto it.
> >>
> >> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> >> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> >> door.
> >>
> >> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
> >> have a "hot wire" cutting tool.
> >>
> >> Thanks a heap,
> >> --Zz
> >
> > The best way is a hot wire, but an electric carving knife
> > works ok. A serrated bread knife will do in a pinch.
> > Art
> >
> >
I prefer an old pull saw for cutting pink or blue foam up to 4 inches
thick. Each pull will cut 2 to 4 inches of foam and leave a pretty clean
edge.
This saw was too dull to cut hardwood anymore.
I keep it around to cut foam for my boy's modeling projects. For fancy
cuts I use my scroll saw with a metal (small tooth) blade in it.
I use Liquid Nails Foam Glue to attach foam to stuff.
I too would recommend an awning of 90 percent shade cloth - put it on a
home build roller and then you can roll it out on days you want to work
and in on days you don't or when it might storm.
http://www.growerssupply.com has it at reasonable prices (no affiliation
other than a customer) 20 foot wide runs about $3.50 US a linear foot -
so a 20 x 20 would run you about 70 dollars, plus a roller and
attachment to your building. I use it over my deck to great effect.
On Sat, 03 Jul 2010 16:09:12 -0700, Zz Yzx <[email protected]> wrote
the following:
>My shop has a steel roll-up "garage" door that faces a blistering sun
>for several hrs/day. I'm determined to insulate it. The easiest way
>I see is to slap some styrofoam shhet insulation onto it.
>
>I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>door.
>
>What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>have a "hot wire" cutting tool.
I did that with my olde woode gar^H^H^Hshop door and it didn't really
help all that much. (2" white with foil 1 side) I cut it with a bread
knife. I use a kitchen-style electric knife for cutting rubbery foam,
but it doesn't work on the hard schtuff. Pink 2" is $21/sheet at HD
now. <thud> http://fwd4.me/VZH
Might I suggest another tack? Drape a length of 70% shade cloth over
the door or that entire side of the shop. Cost would be similar.
http://fwd4.me/VZF or 90% shade http://fwd4.me/VZG in colors.
--
The most powerful factors in the world are clear ideas
in the minds of energetic men of good will.
-- J. Arthur Thomson
"Zz Yzx" <[email protected]> wrote in message
news:[email protected]...
> My shop has a steel roll-up "garage" door that faces a blistering sun
> for several hrs/day. I'm determined to insulate it. The easiest way
> I see is to slap some styrofoam shhet insulation onto it.
>
> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> door.
>
> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
> have a "hot wire" cutting tool.
>
> Thanks a heap,
> --Zz
The best way is a hot wire, but an electric carving knife
works ok. A serrated bread knife will do in a pinch.
Art
"Artemus" <[email protected]> wrote in message
news:[email protected]...
>
> "Zz Yzx" <[email protected]> wrote in message
> news:[email protected]...
>> My shop has a steel roll-up "garage" door that faces a blistering sun
>> for several hrs/day. I'm determined to insulate it. The easiest way
>> I see is to slap some styrofoam shhet insulation onto it.
>>
>> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>> door.
>>
>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>> have a "hot wire" cutting tool.
>>
>> Thanks a heap,
>> --Zz
>
> The best way is a hot wire, but an electric carving knife
> works ok. A serrated bread knife will do in a pinch.
> Art
>
>
A hacksaw blade also works ok.
"Robatoy" <[email protected]> wrote in message
news:9eb3046c-92c8-456c-b4c5-364a50de4d32@u26g2000yqu.googlegroups.com...
On Jul 3, 10:16 pm, Larry Jaques <[email protected]> wrote:
> On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
> <[email protected]> wrote the following:
>
> >a bandsaw, if you don't mind a little dust flying.
>
> I wonder how well Toy's FesteringBeast would do on this stuff...
>
> --
> The most powerful factors in the world are clear ideas
> in the minds of energetic men of good will.
> -- J. Arthur Thomson
Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
the time.
Then they coat it with stuff to create sculpture. Cuts just fine and
you can get some decent detail.
http://www.talkshopbot.com/forum/showthread.php?t=11116
-----------------------------------------------------------------------------------
Was the "Expedition" a circumnavigation? :p
"Robatoy" <[email protected]> wrote in message
news:6d8a7ab6-076f-49f3-9a94-cea98338acb3@k39g2000yqd.googlegroups.com...
On Jul 3, 10:42 pm, "Lobby Dosser" <[email protected]> wrote:
> "Robatoy" <[email protected]> wrote in message
>
> news:9eb3046c-92c8-456c-b4c5-364a50de4d32@u26g2000yqu.googlegroups.com...
> On Jul 3, 10:16 pm, Larry Jaques <[email protected]> wrote:
>
> > On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
> > <[email protected]> wrote the following:
>
> > >a bandsaw, if you don't mind a little dust flying.
>
> > I wonder how well Toy's FesteringBeast would do on this stuff...
>
> > --
> > The most powerful factors in the world are clear ideas
> > in the minds of energetic men of good will.
> > -- J. Arthur Thomson
>
> Guys cut blue and pink extruded (as opposed to expanded) styrofoam all
> the time.
> Then they coat it with stuff to create sculpture. Cuts just fine and
> you can get some decent
> detail.http://www.talkshopbot.com/forum/showthread.php?t=11116
>
> ---------------------------------------------------------------------------
> --------
>
> Was the "Expedition" a circumnavigation? :p
¿qué
-----------------------------------------------------------------------------------
The example you linked.
On 7/3/2010 9:14 PM, Larry Jaques wrote:
> On Sat, 03 Jul 2010 16:09:12 -0700, Zz Yzx<[email protected]> wrote
> the following:
>
>> My shop has a steel roll-up "garage" door that faces a blistering sun
>> for several hrs/day. I'm determined to insulate it. The easiest way
>> I see is to slap some styrofoam shhet insulation onto it.
>>
>> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>> door.
>>
>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>> have a "hot wire" cutting tool.
>
> I did that with my olde woode gar^H^H^Hshop door and it didn't really
> help all that much. (2" white with foil 1 side) I cut it with a bread
> knife. I use a kitchen-style electric knife for cutting rubbery foam,
> but it doesn't work on the hard schtuff. Pink 2" is $21/sheet at HD
> now.<thud> http://fwd4.me/VZH
Really? I did it on my garage door with two layers of 3/4" pink foam from HD
(don't remember the cost) and it's helped immensely. Since 3/4" isn't all that
thick I just cut the stuff with a utility knife; I'd think cutting it with any
kind of saw would make a hell of a mess. I did eventually paint it white
because I got a bit tired of having a PINK garage door... :-)
--
Free bad advice available here.
To reply, eat the taco.
http://www.flickr.com/photos/bbqboyee/
On 7/4/2010 10:37 AM, Steve Turner wrote:
> On 7/3/2010 9:14 PM, Larry Jaques wrote:
>> On Sat, 03 Jul 2010 16:09:12 -0700, Zz Yzx<[email protected]> wrote
>> the following:
>>
>>> My shop has a steel roll-up "garage" door that faces a blistering sun
>>> for several hrs/day. I'm determined to insulate it. The easiest way
>>> I see is to slap some styrofoam shhet insulation onto it.
>>>
>>> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>>> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>>> door.
>>>
>>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>>> have a "hot wire" cutting tool.
>>
>> I did that with my olde woode gar^H^H^Hshop door and it didn't really
>> help all that much. (2" white with foil 1 side) I cut it with a bread
>> knife. I use a kitchen-style electric knife for cutting rubbery foam,
>> but it doesn't work on the hard schtuff. Pink 2" is $21/sheet at HD
>> now.<thud> http://fwd4.me/VZH
>
> Really? I did it on my garage door with two layers of 3/4" pink foam
> from HD (don't remember the cost) and it's helped immensely. Since 3/4"
> isn't all that thick I just cut the stuff with a utility knife; I'd
> think cutting it with any kind of saw would make a hell of a mess. I did
> eventually paint it white because I got a bit tired of having a PINK
> garage door... :-)
Forgot to mention; I also had to do a bit of adjustment on door springs to
account for the extra weight. Be sure you know what the hell you're doing
before you start messing with those springs!
--
Free bad advice available here.
To reply, eat the taco.
http://www.flickr.com/photos/bbqboyee/
Steve Turner wrote:
> On 7/3/2010 9:14 PM, Larry Jaques wrote:
>> On Sat, 03 Jul 2010 16:09:12 -0700, Zz Yzx<[email protected]> wrote
>> the following:
>>
>>> My shop has a steel roll-up "garage" door that faces a blistering sun
>>> for several hrs/day. I'm determined to insulate it. The easiest way
>>> I see is to slap some styrofoam shhet insulation onto it.
>>>
>>> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
>>> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
>>> door.
>>>
>>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>>> have a "hot wire" cutting tool.
>>
>> I did that with my olde woode gar^H^H^Hshop door and it didn't really
>> help all that much. (2" white with foil 1 side) I cut it with a bread
>> knife. I use a kitchen-style electric knife for cutting rubbery foam,
>> but it doesn't work on the hard schtuff. Pink 2" is $21/sheet at HD
>> now.<thud> http://fwd4.me/VZH
>
> Really? I did it on my garage door with two layers of 3/4" pink foam from
> HD
> (don't remember the cost) and it's helped immensely. Since 3/4" isn't all
> that thick I just cut the stuff with a utility knife; I'd think cutting it
> with any
> kind of saw would make a hell of a mess. I did eventually paint it white
> because I got a bit tired of having a PINK garage door... :-)
>
Another use for your Fein, Bosch, Dremel or Harbor Freight Multi Tool
--
You can lead them to LINUX
but you can't make them THINK !
Mandriva 2010 using KDE 4.3
Website: www.rentmyhusband.biz
"Zz Yzx" <[email protected]> wrote in message
news:[email protected]...
> My shop has a steel roll-up "garage" door that faces a blistering sun
> for several hrs/day. I'm determined to insulate it. The easiest way
> I see is to slap some styrofoam shhet insulation onto it.
>
> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> door.
>
> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
> have a "hot wire" cutting tool.
It makes a mess, but any old wood saw will make a decent cut. I recently
did some on my table saw and it worked fine. In the past I used a jab saw
or a hand saw. More specific to your application... I recently partially
disassembled a damaged aluminum boat and found porous plant foam between the
ribs. I ripped exact fitting pieces on my table saw. Then I took a wire
brush to the aluminum and got a good rough surface. Then super grip
construction adhesive and a press fit.
Steve Turner wrote:
>> On Sat, 03 Jul 2010 16:09:12 -0700, Zz Yzx<[email protected]> wrote
>>> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
>>> have a "hot wire" cutting tool.
>
> Really? I did it on my garage door with two layers of 3/4" pink foam
> from HD (don't remember the cost) and it's helped immensely. Since 3/4"
> isn't all that thick I just cut the stuff with a utility knife; I'd
> think cutting it with any kind of saw would make a hell of a mess.
I've used a saber saw with whatever wood blade I had in it and it works
great w/o much of a mess. Last time I used a mini sawzall with the same
blade, cuts like air. Using a metal blade would likely leave zero mess.
--
Jack
When seconds count, the cops are only minutes away
http://jbstein.com
On Sat, 3 Jul 2010 16:40:50 -0700, "Tom Dacon"
<[email protected]> wrote the following:
>a bandsaw, if you don't mind a little dust flying.
I wonder how well Toy's FesteringBeast would do on this stuff...
--
The most powerful factors in the world are clear ideas
in the minds of energetic men of good will.
-- J. Arthur Thomson
"Zz Yzx" <[email protected]> wrote in message
news:[email protected]...
<respectfully snipped>
> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> door.
I just use the table saw, or cut it with a straight edge and utility knife
with some junk wood or plywood rip underneath.
With the utility knife, I make it in one pass, making sure I am all the way
through as I go.
Using the table saw is much faster for me. Also, I use some canned spray
foam on the edges to hold it in and fill in the spaces.
woodstuff
"Zz Yzx" <[email protected]> wrote in message
news:[email protected]...
> My shop has a steel roll-up "garage" door that faces a blistering sun
> for several hrs/day. I'm determined to insulate it. The easiest way
> I see is to slap some styrofoam shhet insulation onto it.
>
> I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need
> to trim the sheets down to ~ 44" X 22" to fit into the recesses of the
> door.
>
> What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't
> have a "hot wire" cutting tool.
A metal straight-edge and a thin-bladed knife such as a fish-filleting knife
or a carving knife,
with the styrofoam backed up by a piece of scrap plywood, works just fine.
Watch your fingers. For a 2-inch-thick piece, I take two passes: one about
half-way through
to define the cut, and then another one to finish it off.
You can also cut it about half-way through as described above and then just
crack it
along the cut, if you don't mind a little imprecision in the dimensions. Or
you could
make another pass along the edge to square it and finish it to dimension
with
a bandsaw, if you don't mind a little dust flying.
I'd get "blue-board" if I were you, rather than that white styrofoam.
Better insulation, cleaner to cut and trim.
Tom