Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database.


Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes


2.5 Watt Blue Thor M 2 Laser Pointer











Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Experiments & Modifications

List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 12-15-2015, 04:52 PM #1
Doucesti's Avatar
Junior Member
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Doucesti Doucesti is offline
Junior Member
Doucesti's Avatar
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Default Cutting white polyester fabric with 1.7W 445nm

Hi great people of lpf

I've built my own cutting table to cut big squares of polyester fabrics for my start-up cie (fabrication and installation of thermally insulating shades). Dimensions are 48'' x 88''. It's almost redneck but is working like a charm!
See the pictures attached! The cutting surface is now coated with aluminium.

The problem that I have: My laser doesn't cut white fabrics! The light is almost all reflected. I'm thinking of using a chalk line prior to cutting but figured that you guys might have ideas to help me!
(I've searched the forums but can't find anything related)

Peace!

Edit: "Why a laser!?" -To prevent fraying of the plastic fabric!
Attached Thumbnails
Cutting white polyester fabric with 1.7W 445nm-1.jpg   Cutting white polyester fabric with 1.7W 445nm-2.jpg   Cutting white polyester fabric with 1.7W 445nm-3.jpg   Cutting white polyester fabric with 1.7W 445nm-4.jpg  



Last edited by Doucesti; 12-16-2015 at 07:53 PM.
Doucesti is offline   Reply With Quote










Old 12-15-2015, 05:53 PM #2
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,049
Rep Power: 3898
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,049
Rep Power: 3898
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Lasers are light based of course. White reflects most visible light. It's a fundamental issue you can't avoid. You either have to use a lot of power, or color the fabric (or at least the cut-line).

Neat project either way.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 12-15-2015, 06:09 PM #3
doubleone44's Avatar
Class 2 Laser
 
Join Date: Aug 2014
Location: Leiden, The Netherlands
Posts: 256
Rep Power: 115
doubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond repute
doubleone44 doubleone44 is offline
Class 2 Laser
doubleone44's Avatar
 
Join Date: Aug 2014
Location: Leiden, The Netherlands
Posts: 256
Rep Power: 115
doubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Or you can use a laser which wavelength is absorbed well. (First thing that comes to mind is a CO2 laser, but I don't know if that would work)
doubleone44 is offline   Reply With Quote
Old 12-15-2015, 08:23 PM #4
Doucesti's Avatar
Junior Member
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Doucesti Doucesti is offline
Junior Member
Doucesti's Avatar
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Default Re: Cutting white polyester fabric with 1.7W 445nm

Quote:
Originally Posted by Cyparagon View Post
You either have to use a lot of power, or color the fabric (or at least the cut-line).
Thanks! I was wondering what kind of coloring I could add. If I had a dark layer of fabric over the white one, it burns only the dark one.. :/


Quote:
Originally Posted by doubleone44 View Post
Or you can use a laser which wavelength is absorbed well. (First thing that comes to mind is a CO2 laser, but I don't know if that would work)
I should have tought of that before, no place for a CO2 laser module haha!
Doucesti is offline   Reply With Quote
Old 12-15-2015, 11:06 PM #5
Gabe's Avatar
Class 3R Laser
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Gabe Gabe is online now
Class 3R Laser
Gabe's Avatar
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

What's preventing you from using a blade, or a hot wire even? Shapes too intricate?
__________________
More light, more better.
____________________________________________
650nm 5mW pointer (solid! Lasted me almost seven years!)
650nm 300mW SL build (ruined) link
635nm 250mW pocket flashlight build
593.5nm 2-9mW Laserglow Rigel
532nm ~25mW flashlight mod! (Barely working, needs modification) link
532nm 300+mW Jetlasers PL-E Pro review
473nm 177mW peak Jetlasers Pl-E Pro review
473nm 45mW labby
450nm 65mW mini focusable laser from Lazerer

To Do List

589nm 50mW Dragon Lasers Spartan
515nm 70mW Jetlasers Titanium B
Custom wooden hosts coming sometime this lifetime.
something something NUBM07E
Gabe is online now   Reply With Quote
Old 12-16-2015, 03:59 AM #6
Doucesti's Avatar
Junior Member
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Doucesti Doucesti is offline
Junior Member
Doucesti's Avatar
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Default Re: Cutting white polyester fabric with 1.7W 445nm

Quote:
Originally Posted by Gabe View Post
What's preventing you from using a blade, or a hot wire even? Shapes too intricate?
The laser will seal the edges of the fabrics I cut, preventing fraying of the fabric normally given by cutting (permitting less sewing after).

Hot wire may work, but would need another system to mesure and square the whole cut. I'll think about it!
Doucesti is offline   Reply With Quote
Old 12-16-2015, 04:07 AM #7
Gabe's Avatar
Class 3R Laser
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Gabe Gabe is online now
Class 3R Laser
Gabe's Avatar
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Quote:
Originally Posted by Doucesti View Post
The laser will seal the edges of the fabrics I cut, preventing fraying of the fabric normally given by cutting (permitting less sewing after).

Hot wire may work, but would need another system to mesure and square the whole cut. I'll think about it!
Ah, never bought of the fraying issue, smart. I feel like a hot wire would heave a nasty edge though, but I have no experience w/ polyester. A hot knife though?
__________________
More light, more better.
____________________________________________
650nm 5mW pointer (solid! Lasted me almost seven years!)
650nm 300mW SL build (ruined) link
635nm 250mW pocket flashlight build
593.5nm 2-9mW Laserglow Rigel
532nm ~25mW flashlight mod! (Barely working, needs modification) link
532nm 300+mW Jetlasers PL-E Pro review
473nm 177mW peak Jetlasers Pl-E Pro review
473nm 45mW labby
450nm 65mW mini focusable laser from Lazerer

To Do List

589nm 50mW Dragon Lasers Spartan
515nm 70mW Jetlasers Titanium B
Custom wooden hosts coming sometime this lifetime.
something something NUBM07E
Gabe is online now   Reply With Quote
Old 12-16-2015, 05:20 AM #8
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,276
Rep Power: 8261
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is online now
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,276
Rep Power: 8261
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Wouldn't a 405nm work better, you would get a tighter rounder focus as well.
__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.
RedCowboy is online now   Reply With Quote
Old 12-16-2015, 05:27 AM #9
Gabe's Avatar
Class 3R Laser
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Gabe Gabe is online now
Class 3R Laser
Gabe's Avatar
 
Join Date: Jan 2015
Location: Edmonton, Canada
Posts: 1,141
Rep Power: 1905
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Quote:
Originally Posted by RedCowboy View Post
Wouldn't a 405nm work better, you would get a tighter rounder focus as well.
Eh, it will cut coloured fabrics much better, but with the issue of white polyester... Better beam specs and sharper focus won't really help.

What's the deal with CO2 lasers and absorption? I never really understood that. Is white the colour its best absorbed by? Thanks.
__________________
More light, more better.
____________________________________________
650nm 5mW pointer (solid! Lasted me almost seven years!)
650nm 300mW SL build (ruined) link
635nm 250mW pocket flashlight build
593.5nm 2-9mW Laserglow Rigel
532nm ~25mW flashlight mod! (Barely working, needs modification) link
532nm 300+mW Jetlasers PL-E Pro review
473nm 177mW peak Jetlasers Pl-E Pro review
473nm 45mW labby
450nm 65mW mini focusable laser from Lazerer

To Do List

589nm 50mW Dragon Lasers Spartan
515nm 70mW Jetlasers Titanium B
Custom wooden hosts coming sometime this lifetime.
something something NUBM07E

Last edited by Gabe; 12-16-2015 at 05:27 AM.
Gabe is online now   Reply With Quote
Old 12-16-2015, 11:35 AM #10
trussmonkey25's Avatar
Class 2M Laser
 
Join Date: Nov 2011
Location: florida
Posts: 809
Rep Power: 429
trussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond repute
trussmonkey25 trussmonkey25 is offline
Class 2M Laser
trussmonkey25's Avatar
 
Join Date: Nov 2011
Location: florida
Posts: 809
Rep Power: 429
trussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond reputetrussmonkey25 has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

A lot of seemingly clear materials to us are opaque to the 10200 nm wave length. A little 30/40 watt CO2 might do the trick.you could put a mirror* on the trolley instead of the whole laser. Check out some of the old gas laser threads for tips and ideas.
*This mirror should be one for co2 laser
trussmonkey25 is offline   Reply With Quote
Old 12-16-2015, 12:24 PM #11
DashApple's Avatar
Class 3R Laser
 
Join Date: Jan 2009
Posts: 1,319
Rep Power: 1573
DashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond repute
DashApple DashApple is online now
Class 3R Laser
DashApple's Avatar
 
Join Date: Jan 2009
Posts: 1,319
Rep Power: 1573
DashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond reputeDashApple has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Nice Work , ^ 10600nm : P


You can get small 35cm ish long Co2 laser tubes , I have one that dose about 15W and it would be possible to mount vertically , but there's the hassle of the water cooling and added weight
__________________
Now the tide is rising
And Iím staring at the wake
I get this feeling inside and
I think that it might be too late
Thereís nothing left to confide in
The only thing concrete is this weight
So Iím stuck here deciding
How much more before I break

My heart is sinking like a stone
In an ocean of itís own
You said Iíd never be alone
I guess I shouldíve known

Last edited by DashApple; 12-16-2015 at 03:03 PM.
DashApple is online now   Reply With Quote
Old 12-16-2015, 04:01 PM #12
Trendkilla254's Avatar
Dark Lord of the Sith
 
Join Date: Mar 2015
Location: Troy, Texas
Posts: 873
Rep Power: 2215
Trendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond repute
Send a message via Skype™ to Trendkilla254
Trendkilla254 Trendkilla254 is offline
Dark Lord of the Sith
Trendkilla254's Avatar
 
Join Date: Mar 2015
Location: Troy, Texas
Posts: 873
Rep Power: 2215
Trendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond reputeTrendkilla254 has a reputation beyond repute
Send a message via Skype™ to Trendkilla254
Default Re: Cutting white polyester fabric with 1.7W 445nm

I must say that I was reading this going "Why a laser". You should add that part about fraying into the OP. I could see this getting quite a bit of comments and attention and it could be easily missed. It is a wonderful idea. What if you added a system to "spray paint" a line with a fine spray nozzel from a air gun designed for detail graphics? It could be mounted to the same trolley system with minimal modifications. You might even be able to find a washable paint that would work.
__________________
New to Lasers? Click Here! THIS is the thread that answers all your "Where can I..." "Is this..." "How do I..."
Laser Safety
Eye Safety First:Uvex S1933X Skyper Safety Eyewear, Black Frame, SCT-Orange UV Extreme Anti-Fog Lens
"5mw"* 405nm Gearbest Pointer - Highly Unlikely to be 5mw
5mw 445nm Custom Pointer in a former Cordless Drill "Gun Style" Host - proof of concept before going into Nerf Gun
5mw ~515nm Bladed LightSaber Osram pl515 with "Growing Blade" Video attached (Host by Ehgemus)
5mw 532nm Pointer Broken? After months of no use it works now... can't explain.
5mw 685nm from 10fenny in Pen Host - Link - Broke Driver taking it apart
Graveyard
0mw 450nm Osram PL-450 RIP 11/25/2015
Two Laserlands 5mw 445nm Pens

Communication methods: Xbox Live\Skype\Steam\Gmail\Google Plus\Youtube - Trendkilla254
Trendkilla254 is offline   Reply With Quote
Old 12-16-2015, 05:01 PM #13
Pi R Squared's Avatar
Class 3B Laser
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 1577
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Pi R Squared Pi R Squared is offline
Class 3B Laser
Pi R Squared's Avatar
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 1577
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

I think a much more powerful blue laser could still do it. I have tested my 1.5W 445nm, and my 1913mW 450nm, and my 3W or so 445nm, I don't have any white polyester, just plastic, cardboard, paper, and wood painted white. The 1.5W burns most things real easy but not if its white, takes forever to make a burn mark on white plastic. The 1913mW 450 surprisingly does much better. The 3W will instantly burn or smoke anything white, I suspect though that it would take far too long to cut large pieces of polyester. I would try one of these: https://sites.google.com/site/dtrlpf...nm-laser-diode
Run it at 4.5A with a G2 lens, I suspect that it will cut the white polyester, but no guarantee, it may again do it too slow, am sure you don't want it to take an hour or two. If anyone reading this has one of these in the neighborhood of 6.8W and some white polyester then please do a test.
I guess before spending the money though you should first try the line with black ink or paint, I wonder if this would work though, polyester is a type of plastic, you can't dye it like other fabric, it doesn't soak in, you can't even stain it by spilling something on it, it will wash out. I wonder if the ink or paint would burn away leaving the white underneath it? It's worth a try though, it might work.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter


Everyone please post here: Countries of LPF. Where are you? <link>
___________________________________________
The light that shines twice as bright burns half as long.
Pi R Squared is offline   Reply With Quote
Old 12-16-2015, 07:36 PM #14
WizardG's Avatar
Class 2 Laser
 
Join Date: May 2011
Location: Oregon
Posts: 377
Rep Power: 1651
WizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond repute
WizardG WizardG is online now
Class 2 Laser
WizardG's Avatar
 
Join Date: May 2011
Location: Oregon
Posts: 377
Rep Power: 1651
WizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond reputeWizardG has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

I built a 405 cutting head for my wife's cutting machine (google 'silver bullet') and the 405 seems to cut white fabrics fine at a reduced speed (800mm/min).

Two ideas:

1.) Fashion a jig to hold a pen such that the tip of the pen will land at the same spot the laser does. "Cut' the work peice twice; once with the pen to draw a black line, and again with the laser going over the same line.

2.) Polyester does not take most dyes well sooo.... go to Dharma trading company and get some yellow (absorbs blue light) dye. Soak the fabric to be cut and let it dry without rinsing. Cut the fabric with the laser then wash the dye out.
__________________
125mW 405
1.157 watt 447
2 meter long hene @ 57mW
Assorted greenies, best @ 244mW of 520
WizardG is online now   Reply With Quote
Old 12-16-2015, 08:12 PM #15
Doucesti's Avatar
Junior Member
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Doucesti Doucesti is offline
Junior Member
Doucesti's Avatar
 
Join Date: Aug 2015
Posts: 10
Rep Power: 0
Doucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to beholdDoucesti is a splendid one to behold
Default Re: Cutting white polyester fabric with 1.7W 445nm

Hi everyone, thanks for your messages!
This community is pretty sharp, hehe.

I've tested normal pencil, permanent marker, non-permanent pen, everything works sorta good. I think that the ink or the matter that sits on top of the fabric becomes really hot and burns the polyester that it is touching.

I'll test the chalk line tomorrow, unfortunately it seems that red and black carpenter chalk line are permanent and blue isn't (please god let that blue be another wavelenght then 445 lol). Or maybe grind some colored black board chalk!

I think that dying the fabric would work but add a lot of fabrication steps (washing hot, rinsing, washing again)... Chalk lines would (I think) only require a humid sponge.

I did buy my 445nm laser component from DTR and he said to run it at 7 to 12 volts.
In my testing, I runned it from 5 to 8.4 volts with short wires.
I am running it, on my table, as recommended at 7volts, but since I have 50 feet of electrical cable, could I run it safely a little higher for extra burn speed?

Last edited by Doucesti; 12-16-2015 at 08:12 PM.
Doucesti is offline   Reply With Quote
Old 12-16-2015, 08:31 PM #16
Pi R Squared's Avatar
Class 3B Laser
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 1577
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Pi R Squared Pi R Squared is offline
Class 3B Laser
Pi R Squared's Avatar
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 1577
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Default Re: Cutting white polyester fabric with 1.7W 445nm

Quote:
Originally Posted by Doucesti View Post
I did buy my 445nm laser component from DTR and he said to run it at 7 to 12 volts.
In my testing, I runned it from 5 to 8.4 volts with short wires.
I am running it, on my table, as recommended at 7volts, but since I have 50 feet of electrical cable, could I run it safely a little higher for extra burn speed?
What diode is it?
An M140?
What driver are you using?
Did you buy it from DTR with a driver?
Or are you using a different driver?

If you bought it from DTR with a driver then it should be an X-drive set at 1.8A, I think the max voltage should be 9V. It won't make any difference if you bump it up to 9V, it is a constant current driver. That diode only needs 4.xV, the driver adjusts the voltage to keep the current constant.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter


Everyone please post here: Countries of LPF. Where are you? <link>
___________________________________________
The light that shines twice as bright burns half as long.
Pi R Squared is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading












Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 08:25 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC