Author Topic: Acrylic Orange Shields  (Read 2218 times)

Administrator

  • Administrator
  • Hero Member
  • *****
  • Posts: 2742
  • Administrator
    • View Profile
Acrylic Orange Shields
« on: February 22, 2017, 09:31:45 AM »
Most of our laser diodes have a wave length rating of 445nm -- make sure you KNOW what the rating is for the laser diode YOU are using.

You can buy a 12x12 inch acrylic Orange shield from the link below, if that size works for you:

https://jtechphotonics.com/?product=445nm-laser-shielding
Admin -- Ralph -- support @ BenCutLaser dot us
https://www.dropbox.com/s/qv1qee2vb65785t/SetupBenCutLaser3.2a.zip?dl=0
BCL Paid license: $49.95
via Paypal to bclpp@primemail.com

treinbert

  • Full Member
  • ***
  • Posts: 225
  • Just into laser cutting & 3D-printing
    • View Profile
    • Spoor 1 Hobby
Re: Acrylic Orange Shields
« Reply #1 on: February 22, 2017, 12:57:36 PM »
Unfortunately the shipping costs to Europe are very high.
Hartelijke groeten/Best regards/Freundlichen Gruessen,
Bert Mengerink

Prusa I3 clone
Renkforce RF100,
500mW, 2500mW and 3500mW laser
Benbox A3 to be used with above lasers
Own build A0 with Z-axis with the same lasers
Proxon converted CNC cutter
Various Raspberry PI's (2 & 3)
Windows 10
MAC OSX

MammaAiuto

  • Jr. Member
  • **
  • Posts: 96
    • View Profile
Re: Acrylic Orange Shields
« Reply #2 on: March 08, 2017, 07:41:05 AM »
Hello,

Sadly here in Canada it's the same,  shipping is about 3 time the price of the sheet ...

I receive stuff bigger  for less ...

it will great if we can make a ( group buy )


Marc.

gibsonk

  • Newbie
  • *
  • Posts: 16
    • View Profile
Re: Acrylic Orange Shields
« Reply #3 on: April 21, 2017, 05:12:02 PM »
Hello,

Sadly here in Canada it's the same,  shipping is about 3 time the price of the sheet ...

I receive stuff bigger  for less ...

it will great if we can make a ( group buy )


Marc.
Unfortunately the shipping costs to Europe are very high.

Check again chaps, I spoke with J-Tech recently and asked about the shipping, they have added lower rates for the UK, hopefully for all others as well, if not it pays to ask

schoonerlabs

  • Newbie
  • *
  • Posts: 25
    • View Profile
Re: Acrylic Orange Shields
« Reply #4 on: April 22, 2017, 02:18:32 AM »
$36 to ship 2 pieces to Canada via the cheapest method so still not worthwhile.

nottingham82

  • Hero Member
  • *****
  • Posts: 1643
    • View Profile
Re: Acrylic Orange Shields
« Reply #5 on: April 22, 2017, 08:40:02 AM »
well they have to ship to canada via moose, and those Moose eat alot of food!
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

Klaus

  • Newbie
  • *
  • Posts: 15
    • View Profile
Re: Acrylic Orange Shields
« Reply #6 on: April 22, 2017, 02:23:35 PM »
For those living in Europe (and maybe also on the American continent), here is what I found:
"Plexiglas", which is a brand of acryllic glass, produce a transparent orange which practically eliminates everything below ca. 525 nm (please see transmission curve attached). The problem is, you won't even see your blue laser anymore (but on the other hand, isn't that the point?). However, as soon as the laser burns something, the ensuing white or red light of the mircoscopical fire contains colours that will pass this filter, because their wavelengths are longer.
For all I know, this should make for a safe window.
In Germany you can order it in the internet at a number of websites, for example here:
   https://www.alles-aus-plexiglas.de/index.php?u=p&id=10602
(No comissions paid to me, sorry to say  :( ).
Hope this helps.
-EleksMaker - A3 2500 MW Laser with Mana SE board
-Used for cutting prototypes of cardboard kits only
-I live in Wuerzburg, Bavaria, Germany

ROSS

  • Hero Member
  • *****
  • Posts: 777
    • View Profile
Re: Acrylic Orange Shields
« Reply #7 on: April 22, 2017, 11:43:45 PM »
For UK forum members  PERSPEX  would be the best bet. 
A sample can be bought quite cheaply from plastic suppliers so a test can be made before a firm decision is made..3mm is a reasonable thickness altho it also  goes to 5mm.
« Last Edit: April 22, 2017, 11:44:26 PM by ROSS »
.
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

MarcusJ

  • Jr. Member
  • **
  • Posts: 78
    • View Profile
Re: Acrylic Orange Shields
« Reply #8 on: May 02, 2017, 06:35:40 AM »
If you're willing to make your own frame, this stuff is an economical alternative.  And especially for those of us north of the border, in the Amazon.com and Ebay hinterlands, you can pick it up locally.

https://www.princessauto.com/en/detail/6-x-6-ft-welding-screen/A-p8671661e

Not as pretty as an acrylic sheet, but gets the job done.  As mentioned in another thread, it attenuates UV, and has a decent OD as well.
« Last Edit: May 02, 2017, 06:36:40 AM by MarcusJ »

ThothLoki

  • Hero Member
  • *****
  • Posts: 2011
  • Tinkerer
    • View Profile
Re: Acrylic Orange Shields
« Reply #9 on: May 02, 2017, 08:14:55 AM »
Some good information on welding screen wavelength blocking performance with some alternatives:

http://jtillman.com/files/jtillman/ckfinder/files/Welding%20Screen%20Performance%20graph(1).pdf

https://eyespc.com/pages/screen-protectors

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