Author Topic: is orange Plexi safe?  (Read 1296 times)

moritz

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is orange Plexi safe?
« on: December 15, 2017, 06:22:37 AM »
i am Building my new housing for the  upcoming laserupgrade to 40x60 wonder if only a 6mm Orange plexi glass will do the trick ? for safety

ROSS

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Re: is orange Plexi safe?
« Reply #1 on: December 15, 2017, 07:42:45 AM »
Look at ZAX posts he has gone into this a number of times..so have others..its in the forum you just have to search.

See here to start.

Benbox Laser Machines/CO2 Lasers/3D Printers
« Last Edit: December 15, 2017, 07:45:01 AM by ROSS »
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Lasers are wonderful machines..not ONLY  can they cut a finger off BUT  they can also cauterise it at the same time.....

SAFETY -  IS NO ACCIDENT

Zax

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Re: is orange Plexi safe?
« Reply #2 on: December 15, 2017, 09:08:40 AM »
6mm orange (amber) plexi should offer sufficient protection from reflected light and for viewing but unless it has an OD rating for the wavelength of your laser there's no guarantee. If it is OD rated you would want OD4 (10k attenuation) as a minimum for up to a 5W laser.

Scroll down to the transmission curve, it's blocks almost all light below 540nm.
http://www.eplastics.com/ACRY24220-250PM48X96

Here's another good resource (amber transmission chart is shown on page 6).
http://www.acrylite.net/sites/lists/PM/DocumentsAP/1213g-light-transmission-and-reflectance-tech-data.pdf

moritz

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Re: is orange Plexi safe?
« Reply #3 on: December 15, 2017, 10:17:13 PM »
Found this Seller .... :o


Item#   Item Name   Our Price   Qty   Add
100-410-005   Laser Viewing Window 12x12x.125   
$1,659.00

i go with an Camera inside ;)

ROSS

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Re: is orange Plexi safe?
« Reply #4 on: December 16, 2017, 12:26:30 AM »
Where you find that???  Its a stupid price.....
.
Lasers are wonderful machines..not ONLY  can they cut a finger off BUT  they can also cauterise it at the same time.....

SAFETY -  IS NO ACCIDENT

Zax

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Re: is orange Plexi safe?
« Reply #5 on: December 16, 2017, 12:03:12 PM »
I hope that's a joke, a 12 x 12 piece should be less than $10.

nottingham82

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Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
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http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

ThothLoki

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Re: is orange Plexi safe?
« Reply #7 on: December 16, 2017, 06:29:48 PM »
Very dumb. I have a small piece of orange acrylic as a window for my enclosure and it works great against the reflection. It was scrap and I am 99.9% sure it is not OD rated
Laser: A5 2000mw with L7 Board / A3 2500mw PWM with Mana SE -- All using T2Laser
3D Printer: Monoprice Maker Select v2.1
Image Resizer Applications (All OS): http://benboxlaser.us/index.php/topic,1434.msg17297.html#msg17297

Zax

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Re: is orange Plexi safe?
« Reply #8 on: December 17, 2017, 04:33:21 AM »
Ask at a local sign shop, they probably have some scrap or check ebay or other plastic sites.

Just an example, I'm not recommending as I have no experience with them:
https://www.estreetplastics.com/Transparent-Orange-Plexiglass-1-4-Thick-p/t052501212.htm

moritz

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Re: is orange Plexi safe?
« Reply #9 on: December 17, 2017, 11:18:22 PM »
thank you yes i have a Plexiglass Fabric near me i will go there ..for now i am installing also Raspberry 1 with Cam and Octoprint to watch the burning proces...