D

23/06/2005 3:49 PM

I need a tool, for freehand cutting thin styrofoam patterns


I would like a tool for freehand cutting 1" and larger fonts into blue 1/2 inch
Styrofoam.
Something fast and leaves a clean edge.
there are hot blades and then those little 12 volt jigsaws for gourd carving but
I've never seen either.
Anyone have experience cutting fine patterns in sheet Styrofoam, mostly
lettering.
thanks


This topic has 12 replies

wq

"www"

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 9:00 AM

> I would like a tool for freehand cutting 1" and larger fonts into blue 1/2
inch
> Styrofoam.
> Something fast and leaves a clean edge.
> there are hot blades and then those little 12 volt jigsaws for gourd
carving but
> I've never seen either.
> Anyone have experience cutting fine patterns in sheet Styrofoam, mostly
> lettering.
> thanks

What about a variable speed scroll saw on slow speed setting?

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b

in reply to [email protected] on 23/06/2005 3:49 PM

23/06/2005 4:57 PM

On Thu, 23 Jun 2005 15:49:39 -0700, [email protected] wrote:

>
>I would like a tool for freehand cutting 1" and larger fonts into blue 1/2 inch
>Styrofoam.
>Something fast and leaves a clean edge.
>there are hot blades and then those little 12 volt jigsaws for gourd carving but
>I've never seen either.
>Anyone have experience cutting fine patterns in sheet Styrofoam, mostly
>lettering.
>thanks


router

D

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 8:32 AM

On Fri, 24 Jun 2005 11:33:49 GMT, B a r r y
<[email protected]> wrote:

>I've used hot wire cutters to cut TONS of r/c model airplane parts from
>blue, pink, and white foam. Accuracy counted on the parts, and for my
>money is the best way to cut the stuff.
>
>Jigs can be built where the wire is following a wood form, if you need
>to cut a bunch of identical parts, like letters.
>
>Use proper ventilation when cutting, you're melting plastic.

Not to worry, the gallons of open Xylene based products will hide the smell.<g>

EP

"Edwin Pawlowski"

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 3:01 AM


<[email protected]> wrote in message
news:[email protected]...
>
> I would like a tool for freehand cutting 1" and larger fonts into blue 1/2
> inch
> Styrofoam.
> Something fast and leaves a clean edge.
> there are hot blades and then those little 12 volt jigsaws for gourd
> carving but
> I've never seen either.
> Anyone have experience cutting fine patterns in sheet Styrofoam, mostly
> lettering.
> thanks

Drill press with an end mill for the cutter. Layout the letters, bring the
bit down and lock it, then move the foam around. You need a fairly large
table for it. It is also good to have some air blowing away the dust. The
dust is a real PITA as it is very clingy with static electricity. After
cutting, touch up can be done with sandpaper and the usual sanding blocks
for corners, etc.

We use an old Walker Turner DP for this but any can be use on a fairly high
speed. It is the first choice for people that make pre-production samples
of this type of material for a living.
--
Ed
http://pages.cthome.net/edhome/

D

in reply to [email protected] on 23/06/2005 3:49 PM

23/06/2005 4:55 PM

On Thu, 23 Jun 2005 18:46:28 -0500, "Morris Dovey" <[email protected]> wrote:

>[email protected] expostulated:
>
>| I would like a tool for freehand cutting 1" and larger fonts into
>| blue 1/2 inch Styrofoam.
>| Something fast and leaves a clean edge.
>| there are hot blades and then those little 12 volt jigsaws for
>| gourd carving but I've never seen either.
>| Anyone have experience cutting fine patterns in sheet Styrofoam,
>| mostly lettering.
>
>Dale...
>
>You can use a router. I have bits as fine as 1/32" with a 1/2" CEL.
>They cut fast, leave only 1/64" radius in inside corners - but I
>suggest you consider using templates rather than cutting freehand.

I'll try that.
I have a router base on my Dremel.
But the Styrofoam is my template.<g>

Ba

B a r r y

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 11:55 AM

[email protected] wrote:
>
> Both are handy tools but how I'm going to carved a one inch font with either is
> a mystery.<g>


Build different sizes yourself. For the r/c stuff, I had 8-9 bows. I
had wide versions for 3-4' long wing airfoils that traveled along a
pattern for the tip and root airfoils, all the way down to tiny hand
held wands used for making small engine cowlings, including the inside
cutout. A connector on the wire allows for easy inside cuts.

Once you have a power supply, you can easily make additional, shop made
bows from wood and nichrome wire. With a variable supply, you can even
control the cutting (melting) speed to keep things comfortable.

Sometimes, shop made is the way to go. I find creating jigs and tools
to be a very enjoyable part of the craft.

Barry

MD

"Morris Dovey"

in reply to [email protected] on 23/06/2005 3:49 PM

23/06/2005 6:46 PM

[email protected] expostulated:

| I would like a tool for freehand cutting 1" and larger fonts into
| blue 1/2 inch Styrofoam.
| Something fast and leaves a clean edge.
| there are hot blades and then those little 12 volt jigsaws for
| gourd carving but I've never seen either.
| Anyone have experience cutting fine patterns in sheet Styrofoam,
| mostly lettering.

Dale...

You can use a router. I have bits as fine as 1/32" with a 1/2" CEL.
They cut fast, leave only 1/64" radius in inside corners - but I
suggest you consider using templates rather than cutting freehand.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

BB

Bruce Barnett

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 1:38 AM

[email protected] writes:

> I would like a tool for freehand cutting 1" and larger fonts into
> blue 1/2 inch Styrofoam. Something fast and leaves a clean edge.
> there are hot blades and then those little 12 volt jigsaws for gourd
> carving but I've never seen either.

If you have never seen them, MicroMark sells them.
Hot knife cuts thru styrofoam like butter:

http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82897


$58.30


There is also the hot wire foam cutter for $30.80

http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82104

It cuts styrofoam up to 4 inches thick.

I think the advantage of these is that it doesn't leave little bits of
foam all over.

--
Sending unsolicited commercial e-mail to this account incurs a fee of
$500 per message, and acknowledges the legality of this contract.

BB

Bruce Barnett

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 10:52 AM

[email protected] writes:

> Both are handy tools but how I'm going to carved a one inch font
> with either is a mystery.<g>

Ah. I missed the "carve INTO" part. I thought you wanted to cut the
outside away. Never mind.. <g>

--
Sending unsolicited commercial e-mail to this account incurs a fee of
$500 per message, and acknowledges the legality of this contract.

D

in reply to [email protected] on 23/06/2005 3:49 PM

23/06/2005 6:59 PM

On 24 Jun 2005 01:38:20 GMT, Bruce Barnett
<[email protected]> wrote:

>[email protected] writes:
>
>> I would like a tool for freehand cutting 1" and larger fonts into
>> blue 1/2 inch Styrofoam. Something fast and leaves a clean edge.
>> there are hot blades and then those little 12 volt jigsaws for gourd
>> carving but I've never seen either.
>
>If you have never seen them, MicroMark sells them.
>Hot knife cuts thru styrofoam like butter:
>
>http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82897
>
>
>$58.30
>
>
>There is also the hot wire foam cutter for $30.80
>
>http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82104
>
>It cuts styrofoam up to 4 inches thick.
>
>I think the advantage of these is that it doesn't leave little bits of
>foam all over.

Both are handy tools but how I'm going to carved a one inch font with either is
a mystery.<g>

D

in reply to [email protected] on 23/06/2005 3:49 PM

23/06/2005 4:14 PM

On Fri, 24 Jun 2005 09:00:03 +1000, "www" <[email protected]> wrote:

>> I would like a tool for freehand cutting 1" and larger fonts into blue 1/2
>inch
>> Styrofoam.
>> Something fast and leaves a clean edge.
>> there are hot blades and then those little 12 volt jigsaws for gourd
>carving but
>> I've never seen either.
>> Anyone have experience cutting fine patterns in sheet Styrofoam, mostly
>> lettering.
>> thanks
>
>What about a variable speed scroll saw on slow speed setting?

How do I get that in the middle of a large sheet?
I use my band saw and Dewalt scroll saw for some stuff but pulling the SS blade
for each letter is a pain even in small sheets.

Ba

B a r r y

in reply to [email protected] on 23/06/2005 3:49 PM

24/06/2005 11:33 AM

Bruce Barnett wrote:

>
> There is also the hot wire foam cutter for $30.80
>
> http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82104
>
> It cuts styrofoam up to 4 inches thick.
>
> I think the advantage of these is that it doesn't leave little bits of
> foam all over.
>

I've used hot wire cutters to cut TONS of r/c model airplane parts from
blue, pink, and white foam. Accuracy counted on the parts, and for my
money is the best way to cut the stuff.

Jigs can be built where the wire is following a wood form, if you need
to cut a bunch of identical parts, like letters.

Use proper ventilation when cutting, you're melting plastic.

Barry


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