Date: Mon, 11 Apr 2011 11:31:08

Author: Paul Nord

Subject: Re: cutting thin plywood with laser?

Post:


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Tom,

I skimmed through some listings. The price you mentioned seems to be =
missing at least one zero. That looks like a typo since you probably =
wouldn't be calling $300 "pricey."

Paul


On Apr 11, 2011, at 9:03 AM, George Herold wrote:

> Interesting Tom, about how much did it cost? (A CO2 laser I assume)
> =20
> George
>=20
> From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] =
On Behalf Of Thomas J. Bauer
> Sent: Saturday, April 09, 2011 11:55 AM
> To: tap-l@lists.ncsu.edu
> Subject: Re: [tap-l] cutting thin plywood with laser?
>=20
> Hi Brian,
>=20
> We have a Trotec 32x28" laser cutter with a 100W laser. Can cut
> up to 3/8" birch ply and 1/2" balsa and plastics. I use AutoCAD to =
generate the drawings. Even the educational version is pricey, about =
$300 when I last bought it. However, There is a piece of drafting =
software called DraftSight which is AutoCAD compatible
> If your an AutoCAD user you would feel right at home.
> The first time you print with it you need to register it by sending an =
email. I got one email requesting I join the draftsight community, said =
no thanks, and haven't gotten any more emails.
>=20
> "ttp://www.3ds.com/products/draftsight/free-cad-software/
>=20
> There is a very good tutorial that will get you up and drawing, =
dimensioning, and printing in an hour or so.
> . =20
> Here is a link to a site that does cutting with the idea of making =
model airplane kits
>=20
> "ttp://ak-models.com/lasercutservices.htm
>=20
> They have a very good description of what you need to do to
> send them a drawing that they can cut from. One thing they don't
> describe is offsetting the size of the drawing to take into account =
the diameter of the laser beam. Our beam is 0.020" in diameter
> so I made "holes" 0.020 smaller in diameter and "plug" 0.020 diameter =
bigger. They don't say the size of their beam ,but I am guessing it =
about this size.
>=20
> One thing I made recently is a V-Block mount to hod a tube from 1 to =
maybe 3" in diameter on a camera tripod. It is about 1.5 Inches wide, 6" =
long, and has V's about 2" tall. I made it out of
> 1/4" birch ply. Glued it together with Super Glue, tapped a 1/4-20 =
hole in the plywood, and screwed it onto the tripod. Different size =
tubes can be clamped by using different sized hose clamps.
> We use it to aim a ping-pong ball gun.
>=20
> If you interested in going this route let me know and I can provide =
you some tricks for making the drawings a lot easier.
>=20
> Plasma cutters will cut metals, don't know about wood. You need an =
electrical current. I've only seen ones on TV and these were working =
under water to cut 1" steel plate for welding. The water was to reduce =
noise and gas emission from the cutting process.
> Our laser uses an airblast to help clean the super heated material out =
of the way. You need to adjust the power very carefully for the density =
of wood and thickness. Too much power and you have a charred mess.
>=20
> Tom
>=20
> Tom Bauer
> Physics Department
> Wellesley College
> Wellesley, MA 02481
>=20
> tap-l@lists.ncsu.edu writes:
> I thought most of the devices that cut metal and wood along these =
lines are plasma cutters. Some larger industrial folks do use lasers, =
but i believe that most schools use plasma cutters.
> I've been wrong before.
> =20
> Paul Lulai
> Physics Teacher
> St Anthony Village S.H.
> 3303 33rd Ave NE
> St Anthony Village, MN 55418
>=20
> 612-706-1146
> plulai@stanthony.k12.mn.us
> "ttp://www.stanthony.k12.mn.us/hsscience/
>=20
> ________________________________
>=20
> From: tap-l-owner@lists.ncsu.edu on behalf of david kardelis
> Sent: Fri 4/8/2011 11:21 PM
> To: tap-l@lists.ncsu.edu
> Subject: Re: [tap-l] cutting thin plywood with laser?
>=20
>=20
> The drafting department has one, The local high school has one and the =
school for the disabled has a laser cutter that can cut wood and =
plastic. They cost about 5-10k
> dave
>=20
>=20
> On Fri, Apr 8, 2011 at 10:05 PM, Paul Nord =
wrote:
>=20
>=20
> You're talking about industrial laser cutting. If price is a =
consideration, I doubt you really want to do this.
>=20
> I've got one game from these folks:
> "ttp://www.gamepuzzles.com/
> They make woodcut games and artworks in their garage:
> "ttp://www.gamepuzzles.com/kadon.htm#mfg
>=20
> It says they outsource some of it. So, it's possible you =
could order some custom-cut parts made this way.
>=20
> =20
> Paul
>=20
>=20
> On Apr 8, 2011, at 10:34 PM, Brian Holton wrote:
>=20
>=20
> I was thinking of making some kits made of =BC" wood =
for some local schools, and thought, hmmmm, might be nice to cut this =
stuff with a laser cutter. I wonder if you can get a laser strong =
enough, them build some computer control.....
> =20
> So, question 1. Anyone do this yet? Advice please.
> =20
> Question 2. Any ideas on a laser to do so (price IS a =
consideration)
> =20
> Question 3. What do people think of this laser in =
general =
http://www.wickedlasers.com/lasers/Spyder_III_Pro_Arctic_Series-96-37.html=

> =20
> Thanks in advance,
> Brian
>=20
>=20
>=20
>=20
>=20
>=20


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Tom,I skimmed through some =
listings. The price you mentioned seems to be missing at least one =
zero. That looks like a typo since you probably wouldn't be =
calling $300 =
"pricey."Paul=
On Apr 11, 2011, at 9:03 AM, George Herold wrote:Interesting Tom, about how much did it =
cost? (A CO2 laser I assume) GeorgeFrom: tap-l-owner@lists.ncsu.edu<=
span =
class=3D"Apple-converted-space"> [mailto:tap-l-owner@lists.ncs=
u.edu] On Behalf =
Of Thomas J. =
BauerSent: Saturday, April 09, 2011 =
11:55 AMTo: tap-l@lists.ncsu.eduSubjec=
t: Re: [tap-l] =
cutting thin plywood with laser?Hi =
Brian,We have a Trotec 32x28" laser cutter with a 100W =
laser. Can cutup to 3/8" birch ply and 1/2" balsa and plastics. =
I use AutoCAD to generate the drawings. Even the educational =
version is pricey, about $300 when I last bought it. However, There is a =
piece of drafting software called DraftSight which is AutoCAD =
compatibleIf your an AutoCAD user you would feel right at =
home.The first time you print with it you need to register it by =
sending an email. I got one email requesting I join the draftsight =
community, said no thanks, and haven't gotten any more =
emails."ttp://www.3ds.com/products/draftsight/free-cad-software/=
There is a very good tutorial =
that will get you up and drawing, dimensioning, and printing in an hour =
or so.. Here is a link to a site that does cutting with the idea of =
making model airplane kits"ttp://ak-models.com/lasercutservices.htmThey have a very good description of what you =
need to do tosend them a drawing that they =
can cut from. One thing they don'tso I made "holes" 0.020 smaller =
in diameter and "plug" 0.020 diameter bigger. They don't say the size of =
their beam ,but I am guessing it about this size.One thing I made recently is a V-Block mount to hod a tube from =
1 to maybe 3" in diameter on a camera tripod. It is about 1.5 Inches =
wide, 6" long, and has V's about 2" tall. I made it out =
of1/4" birch ply. Glued it together with Super =
Glue, tapped a 1/4-20 hole in the plywood, and screwed it onto the =
tripod. Different size tubes can be clamped by using different sized =
hose clamps.We use it to aim a ping-pong =
ball gun.If you interested in going this =
route let me know and I can provide you some tricks for making the =
drawings a lot easier.Our laser uses an airblast to help clean the super heated =
material out of the way. You need to adjust the power very carefully for =
the density of wood and thickness. Too much power and you have a charred =
mess.TomTom BauerPhysics =
DepartmentWellesley =
CollegeWellesley, MA =
02481tap-l@lists.ncsu.edu writes:I thought most of the devices that cut metal and wood =
along these lines are plasma cutters. Some larger industrial folks =
do use lasers, but i believe that most schools use plasma =
cutters.I've been wrong =
before. Paul LulaiPhysics =
TeacherSt Anthony Village =
S.H.3303 33rd Ave =
NESt Anthony Village, MN =
55418612-706-1146plulai@stanthony.k12.mn.us<=
/font>"ttp://www.stanthony.k12.mn.us/hsscience/From: tap-l-owner@lists.ncsu.edu<=
span class=3D"Apple-converted-space"> on behalf of david =
kardelisSent: Fri 4/8/2011 11:21 =
PMTo: tap-l@lists.ncsu.eduSubject: Re: [tap-l] cutting thin plywood with =
laser?The drafting department has one, The =
local high school has one and the school for the disabled has a laser =
cutter that can cut wood and plastic. They cost about =
5-10kdaveOn Fri, Apr 8, 2011 at 10:05 PM, Paul Nord =
wrote:ttp://www.gamepuzzles.com/ They =
make woodcut games and artworks in their garage: "ttp://www.gamepuzzles.com/kadon.htm#mfg It =
says they outsource some of it. So, it's possible you could order =
some custom-cut parts made this way. On =
Apr 8, 2011, at 10:34 PM, Brian Holton =
wrote:http://www.wickedlasers.com/lasers/Spyder_III_Pro_Arctic=
_Series-96-37.html

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