Author Topic: A3 PRO 5500mW cuts deeper when only moving in Y-direction  (Read 1311 times)

karsan

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A3 PRO 5500mW cuts deeper when only moving in Y-direction
« on: November 12, 2017, 07:05:43 AM »
I have an EleksLaser-A3 Pro 5500mW Laser Engraving Machine and I'm facing trouble to properly cut in different directions.
When moving Y-direction (back and forth) only, it cuts perfectly and I’m able to reach expected depth in the plate being cut.
When moving X-directions, the depth does not reach even 50% of depth on the same plate of previous test.
When cutting in circle, the whole cut is 50% deep only and when cutting a straight line in the center of the same circle, using only the Y-direction and keeping the same settings, the straight line achieves 100% of expected depth.
Has anyone ever faced this issue before? Please share your thoughts and workarounds to fix it.

Image Benbox


Please find attached BENBOX settings to cut 2.5mm plate (MDF) and a video with different depth results when in different directions (Y only, X-Y and X only).

https://www.youtube.com/watch?v=bim5fwdgaJQ&feature=youtu.be

laser_cutter

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #1 on: November 12, 2017, 08:24:27 AM »
Make a sqaure and post the results.

You may have an issue where the laser point is not a point but a small retangle. The retangular shaped point means that in one direction the laser is a line and 90 degrees to that the laser is a wide rectangle.

nottingham82

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #2 on: November 12, 2017, 08:50:48 AM »
Hey Karsan,

I replied on the eleks forum already but Ill repeat it here.  The diode lasers emit a rectangular beam.  So it is easier to focus in one direction than the other.  When I was cutting I would cut small 1 cm squares until making tiny adjustments to the focus until it cut in both the x and y directions in the same number of passes.   
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

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #3 on: November 13, 2017, 11:33:02 AM »
Please find attach the video related to laser spot.
I probably missed an optical filter to capture the rectangular shape of the laser.
Is there any alternative to cut a plate with the same laser intensity in all directions?

https://www.youtube.com/watch?v=7Oul2wFmkG4&feature=youtu.be

treinbert

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #4 on: November 13, 2017, 11:22:26 PM »
I have the same problem with my 3500 mW laser and I have adjusted the speed in the different directions, so the cut is even in X as well as Y.
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

laser_cutter

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #5 on: November 14, 2017, 08:48:57 AM »
Please find attach the video related to laser spot.
I probably missed an optical filter to capture the rectangular shape of the laser.
Is there any alternative to cut a plate with the same laser intensity in all directions?

https://www.youtube.com/watch?v=7Oul2wFmkG4&feature=youtu.be

"Is there any alternative to cut a plate with the same laser intensity in all directions?"

Yes and no. Bencutlaser, the software this forum was created around, allows each line (cut) to cut to a designated intensity.  The Administrator of this board can better explain the many thoughtful and useful qualities.

However, considering that your laser is does not seem to focus to very well to a point, there may not be much of an important.

Some suspect that the lasers are factory rejects, other suspect that a 5000mw laser is an overdriven 2000mw laser. The laser forming a line has been an issue that has been more common over the last 6 months.

Zax

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #6 on: November 14, 2017, 09:49:23 AM »
T2Laser has automatic compensation for different axis, you can adjust the power or feed rate.

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #7 on: November 14, 2017, 11:48:57 AM »
Hey treinbert,

Thank you for your feedback.
Can you tell me how to configure BENBOX software to perform different speeds while running a cut in one run only? This may be useful with thinner sheets.
With 2.5mm (MDF) plates, I have noticed that when I am at the lowest possible speed making the cut on the Y direction is perfect, if I reduce the speed, the sheet material will fire. Then, depending on the thickness of the sheet being cut, it is not possible to perform the cut at a slower speed.
Currently, to be able to execute a perfect cut on all directions, I have to repeat the same cut procedure several times.

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #8 on: November 14, 2017, 11:50:18 AM »
Hey Zax,

Thanks for the clarification.
I will study more closely the features available in the T2Laser Software.

treinbert

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #9 on: November 14, 2017, 02:51:14 PM »
I do not use Benbox software, but mostly BenCutLaser and sometimes T2Laser. Both these two programms lets you easily modify the speed in each direction.
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

ggallant571

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #10 on: November 14, 2017, 04:41:04 PM »
Many of us have a small air compressor directing a low volume, high speed, jet of air at the burn point. Helps in 2 ways. First it blows the char out of the cut. Second it will put out small fires. I use an aquarium pump ($8.00US at pet stores) most of the time and occasionally hook up a higher volume unit when cutting very slow.
SARCASM - Just one more service we offer here.

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #11 on: November 16, 2017, 01:50:18 AM »
Hey ggallant571

Thank you. Good idea

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #12 on: November 16, 2017, 02:32:29 AM »
Image 1


Image 2


Engraving and cutting done with BENBOX software V 3.7.99

2.5 mm MDF material

Gravação: Intensity = 50
Speed = 800
Carve Mode = Scan By Line
1 = repeats

Corte: Intensity = 254
Speed = 500
Carve Mode = Outline
8 = repeats

Thanks for the clarification.

https://www.youtube.com/watch?v=MT7yRDG-Eas&feature=youtu.be

karsan

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #13 on: November 18, 2017, 02:14:02 AM »
Olá Tribo,

1 - Não consigo (não entendi como fazer) inserir Imagens quando envio uma mensagem neste grupo.

2 - Não consigo (não entendi como fazer) responder ao teu e-mail pelo link que você me enviou:   http://benboxlaser.us/index.php?action=pm;sa=s.......

3 - A resposta ao teu e-mail é "SIM"

Abraços.

Zax

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Re: A3 PRO 5500mW cuts deeper when only moving in Y-direction
« Reply #14 on: November 18, 2017, 03:59:57 AM »
It looks like this should be a PM not a forum post, also please post in English per forum rules.