Author Topic: Cutting Photo Paper  (Read 1992 times)

atomicashes

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Cutting Photo Paper
« on: August 28, 2017, 11:36:14 PM »
Hello!

I'm looking for some assistance with what I'm trying to do. I've attached the image of what I want to cut out. I basically want to cut along the lines and cut out the numbers. I'm using a 1.6W laser. I'm very new to using lasers and haven't successfully done anything with it. Any help is greatly appreciated.

Charlie

nottingham82

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Re: Cutting Photo Paper
« Reply #1 on: August 29, 2017, 12:29:10 AM »
what software are you trying to do that with? 
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atomicashes

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Re: Cutting Photo Paper
« Reply #2 on: August 29, 2017, 12:30:07 AM »
T2Laser

nottingham82

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Re: Cutting Photo Paper
« Reply #3 on: August 29, 2017, 12:40:25 AM »
well the easiest way is probably just to open your image, select autotrace, then set a multipass of 2.  No idea on the speed start with 1000 and see how that looks then go faster if it catches fire and slower if it doesnt cut all the way through.

this tutorial should help you.  I fast forwarded it to the part that applies to you.

https://youtu.be/7-sLv0Ww9BE?t=5m26s
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

atomicashes

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Re: Cutting Photo Paper
« Reply #4 on: August 29, 2017, 01:01:59 AM »
Great. Thank you. I'll give it a try.

Zax

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Re: Cutting Photo Paper
« Reply #5 on: August 29, 2017, 04:45:54 AM »
I agree that's the easiest but with Auto Trace you will get double lines for the thin lines, the text will be OK though as it's filled. I would probably convert to vector in Inkscape and load as a DXF, but the alternative is to use Trace and click each line but that's time consuming unless you save the G-code and use it multiple times.

mrehmus

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Re: Cutting Photo Paper
« Reply #6 on: August 29, 2017, 10:29:49 AM »
The problem with this approach is that there is no way to truly index the photograph to the laser. So it will take a bit of experiment to get everything mechanically synced, won't it?

Now, if the laser exposed the photo paper (it is silver based paper, yes) then it could expose, then cut out the paper and then the paper could be developed. Or, maybe thermal paper could be used if longevity isn't an issue.
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atomicashes

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Re: Cutting Photo Paper
« Reply #7 on: August 29, 2017, 11:45:42 PM »
I feel like I'm getting closer but still having issues. As its tracing the laser never turns off. So its burning lines from the outside trace to the two inner pieces. Know a fix for this?

nottingham82

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Re: Cutting Photo Paper
« Reply #8 on: August 29, 2017, 11:59:51 PM »
what method did you use?  If you used inkscape to dxf you probably had your export setting wrong.  Roboline and LWpolyline should be unselected.
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

atomicashes

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Re: Cutting Photo Paper
« Reply #9 on: August 30, 2017, 12:14:00 AM »
This is what i get when I trace the jpg i loaded into T2.

I'm actually starting to think that the laser I bought just isn't going to cut what i need it to cut.

Zax

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Re: Cutting Photo Paper
« Reply #10 on: August 30, 2017, 04:17:24 AM »
What do you have laser min and max set to?

atomicashes

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Re: Cutting Photo Paper
« Reply #11 on: August 30, 2017, 01:16:00 PM »
I have it set to 0 and 255.

Zax

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Re: Cutting Photo Paper
« Reply #12 on: August 30, 2017, 01:55:19 PM »
There shouldn't be any connecting lines, that's very strange.

If you send me the image I will check it.

atomicashes

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Re: Cutting Photo Paper
« Reply #13 on: August 30, 2017, 03:20:36 PM »
Shoot. Sorry. Yeah I had it set at 255 and 255 at one point and I think that's why. I'm still unable to cut through the styrene though. Knocked the speed down to 50 and it still doesn't.

nottingham82

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Re: Cutting Photo Paper
« Reply #14 on: August 30, 2017, 09:02:07 PM »
oh is that what you are trying to cut?  you cant cut styrene.  I wouldnt have referred to that as photo paper.  Photo paper to me is glossy thick inkjet paper.  There are plenty of people that have tried to do foam or styrene and been completely unsuccessful.  If its possible I havent seen it done. 
« Last Edit: August 31, 2017, 07:44:13 AM by nottingham82 »
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