Bending Acrylic

General Laser Usage Topics
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Philipp Pap
Posts: 80
Joined: Wed Mar 15, 2017
Location: Innsbruck
Country: Austria
Laser Machine Make or Type: rdc6445
Laser Power: 55W
Laser Bed Size: 50x30cm
Home Position: TL
Control Software: LIGHTBURN
RDWorks Version: lightburn
Ruida Controller: RDC6445
Windows Version: 10

I was looking for tips (like defocus distance, speed and power settings) to bend acrylic (which I have never tried before), when I came across this fascinating video https://youtu.be/arjRtCjI9AQ (LaserOrigami: laser-cutting 3d objects)

Maybe there are users here that have useful information to share? :)

Edit:
More Info of LaserOrigami is found here https://fablab.fau.de/2014/03/laserorig ... sercutter/
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Gene Uselman
Posts: 2180
Joined: Thu Jul 07, 2016
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: QC
Laser Power: 130W
Laser Bed Size: 900x1300
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
LightBurn Version: Latest
Ruida Controller: RDC6442
Windows Version: Win 10 Pro
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.

I do a bit of this but do not depend upon gravity to do the bending. I normally cut the outline and then engrave an area where I want the bend and then move the bed down 50mm using the test tab and then engrave the same area again, which produces the heat. Pick it up and bend to a wood block with the angle that I want to end with.
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Desk sign.jpg
I have also made plastic boxes to custom fit many things using the same technique and lately have been using the sheet metal capability of Fusion360 to make a flat pattern to cut out and bend on my homemade bending jig. This is my first try, I have improved :twisted:

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box.jpg
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Philipp Pap
Posts: 80
Joined: Wed Mar 15, 2017
Location: Innsbruck
Country: Austria
Laser Machine Make or Type: rdc6445
Laser Power: 55W
Laser Bed Size: 50x30cm
Home Position: TL
Control Software: LIGHTBURN
RDWorks Version: lightburn
Ruida Controller: RDC6445
Windows Version: 10

All my tries didn't look good. Guess I have to make a heat bender :lol:
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