multi layer plastic sheets (different colours)

Discussion on what materials you laser cut or engrave
Jason Wright
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multi layer plastic sheets (different colours)

Post by Jason Wright » Fri Nov 18, 2016 2:28 am

Hi there,

Im sure you can gt a plywood type plastic sheet but i dont know what its called , if i knew that i could start to look where to buy it,

Im sure you know what i mean but ill explain, say its a red colour on the surface but has a white layer underneath so you can etch though the red layer to expose the white underneath.

Any ideas?

cheers
Chinese 700x500 80 watt machine - TR
Mods: custom air assist off a workshop compressor, ammeter installed, switch panel, overnight internal tube heater

RD works V8.01.18 windows 10

Jason

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fred ungewitter
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Re: multi layer plastic sheets (different colours)

Post by fred ungewitter » Fri Nov 18, 2016 4:44 am

It's called multi-layer sign plastic or multi-layer sign sheets. I did a quick google search and got far too many results to post here. Too many choices, not enough (fill in the blank).
fred

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Jason Wright
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Re: multi layer plastic sheets (different colours)

Post by Jason Wright » Fri Nov 18, 2016 4:46 am

excellent thanks ill have a google
Chinese 700x500 80 watt machine - TR
Mods: custom air assist off a workshop compressor, ammeter installed, switch panel, overnight internal tube heater

RD works V8.01.18 windows 10

Jason

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Gene Uselman
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Re: multi layer plastic sheets (different colours)

Post by Gene Uselman » Fri Nov 18, 2016 7:18 am

If you are thinking thin (.020- .060) it is called micro plastic (Gemini Duets & Romark). Gene

Jason Wright
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Re: multi layer plastic sheets (different colours)

Post by Jason Wright » Fri Nov 18, 2016 10:13 am

no not thin, but thanks anyway
Chinese 700x500 80 watt machine - TR
Mods: custom air assist off a workshop compressor, ammeter installed, switch panel, overnight internal tube heater

RD works V8.01.18 windows 10

Jason

Martín Lázaro
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Location: Olavarria
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Re: multi layer plastic sheets (different colours)

Post by Martín Lázaro » Fri Nov 18, 2016 10:33 am

I work a lot with this plastic (here called bi-layer= bicapa), i test gravoply and rowmark, both similar quality.
There are interior and exterior (UV protection) "models", and a lot of combinations (top color/ letter color), normally 2 mm thick, but they have a thin bi-layer with aluminum / silver / gold finish, maybe 1 mm, then this is a flexible material to adecuate to curve surfaces, etc
Here offer too a "noname" by-layer, chineeeeeese by-layer :) , a half of price, only interior use, and for me, not bad material.

Martín Lázaro
Posts: 89
Joined: Mon Aug 01, 2016 10:32 am
Location: Olavarria
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Laser Machine Make or Type: Goldenlaser 2 fixed heads retrofited (6442s)
Laser Power: 80w + 50w
Laser Bed Size: 1300*600mm
Home Position: TL
RDWorks Version: 8.01.23
Accessories: rotary chuck
wireless panel
Windows Version: w7 64bits

Re: multi layer plastic sheets (different colours)

Post by Martín Lázaro » Fri Nov 18, 2016 10:40 am

I attach a photo of one of my first test (2 year ago) with by-layer, after more test, i can get a better engraving with this parameters :
The ruler is in centimeters

I use minimum power (for me 26%, below that not fire), vel 400 mm/s and interval 0.1 mm to engraving
And 90% power, 18 mm/s to cut

Martín.-
Attachments
IMG_20161118_132758.jpg
IMG_20161118_132758.jpg (1.85 MiB) Viewed 164 times

Martín Lázaro
Posts: 89
Joined: Mon Aug 01, 2016 10:32 am
Location: Olavarria
Country: Argentina
Laser Machine Make or Type: Goldenlaser 2 fixed heads retrofited (6442s)
Laser Power: 80w + 50w
Laser Bed Size: 1300*600mm
Home Position: TL
RDWorks Version: 8.01.23
Accessories: rotary chuck
wireless panel
Windows Version: w7 64bits

Re: multi layer plastic sheets (different colours)

Post by Martín Lázaro » Fri Nov 18, 2016 10:43 am

Is a really smelly material when you engrave/cut it !!!
Martín.-

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Gene Uselman
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RDWorks Version: V8.01.19 LO
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Re: multi layer plastic sheets (different colours)

Post by Gene Uselman » Fri Nov 18, 2016 10:49 am

The thicker mult-ply plastic is more for mechanical engraving or routing- one mfgr is King Starboard. Gene

Jason Wright
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Re: multi layer plastic sheets (different colours)

Post by Jason Wright » Sat Nov 19, 2016 7:52 am

need to find out what its called over here in the uk as a quick search brought nothing for me, ill look some more though
Chinese 700x500 80 watt machine - TR
Mods: custom air assist off a workshop compressor, ammeter installed, switch panel, overnight internal tube heater

RD works V8.01.18 windows 10

Jason

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