Author Topic: A little problem  (Read 1597 times)

astrokaz

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A little problem
« on: August 28, 2016, 02:02:16 AM »
Hi Every one, first thing I want to say is what a cool site,
there are some great topics, and some very clever people here.

Like so many people, I have purchased one of them nice little laser engravers off eBay,
 I got the 40x30cm 2.5 w eleks maker series, with L7 board, reading what it could do on
 eBay it covered every thing I wanted to do.
After putting it together and initial testing, I was reasonably happy with it, using  Benbox,
 but the first problem was it had no low laser light for focus, and I could not do Grey scale
 engraving with it, which was one of the main reasons I got it.

Like you do, I have contacted the seller several times, he has responded but he does
 not understand what the problem is ?
and was looking into it, that was 2 weeks ago, at this point I was saying to myself,
 I should have know better when after scouring the net, I came across you guy's,
 and found out I was not the only one to have fallen for the disinformation given
about some of these engravers on eBay.

In the end I am now using Zax's T2 laser software in the hopes that it would get me
 back my soft focus light and allow me to do some grey scale engraving, I tried the
 trial version and every thing was pointing to it working I had low laser light back and
 I thought I had control over the laser power but after purchasing the full copy
 of Zax's software, it soon became apparent I did not, (my fault ) , the laser does
not burn anything under 220  and it is a bit weaker than 255 but nothing in-between.
My question to you Guy's is Does this sound like its just the laser hardware that's
incapable of producing the variable power
Or have I missed something on the software side (don't think I have ).
If it is the hardware can anybody recommend a laser that will work with Zax's excellent software,
I do have another laser only a 1 watt that does have a separate
 TTL  part to it, but I am unsure how to connect it up to the Eleks maker board,
or am I not looking at this problem right.

Any help would be gratefully received, Thanks Guy's  :)
Paul ,from the UK

ROSS

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Re: A little problem
« Reply #1 on: August 28, 2016, 02:10:44 AM »
A lot on here about weak laser light and weak laser main burner. 
ZAX will probably sort you out later when he pops up.


Meanwhile.  Check the Index   for tips.

Benbox Laser DIY Machines
General Category
Trouble Shooting
« Last Edit: August 28, 2016, 02:12:12 AM 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

astrokaz

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Re: A little problem
« Reply #2 on: August 28, 2016, 02:25:15 AM »
Thanks Ross, Ill grab another coffee and keep looking

Zax

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Re: A little problem
« Reply #3 on: August 28, 2016, 05:41:35 AM »
Welcome Paul.

It sounds like your laser module isn't producing a linear response to the PWM input. There doesn't seem to be much logic why some work great and others don't. It is likely a combination of the Eleks board (driver) and the current limiting circuit within the module.

The original laser I got with my machine works great no matter which Eleks board I use, but another I purchased only works with the L1 (which is out of production).

If you have a laser with external TTL driver, that's the perfect solution.

This thread has a lot of information, including how I recommend hooking it up:
http://benboxlaser.us/index.php?topic=402.msg6591#msg6591

Here's a post with more links:
http://benboxlaser.us/index.php?topic=309.msg6709#msg6709

In the mean time, dithering in T2Laser works great even with an on/off laser mode. I also recommend getting the latest version v1.3b from my update sig link below.

astrokaz

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Re: A little problem
« Reply #4 on: August 28, 2016, 06:19:47 AM »
Hi Zax and Thanks, love the software, and thanks for the quick response, ;D 
The dithering works very well, I was surprised how good it looked to be fair,

Ill keep tying to get it sorted and will let you Guy's know what  happens

thanks again, Paul

Zax

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Re: A little problem
« Reply #5 on: August 28, 2016, 08:32:46 AM »
Thanks.

it isn't always the machine, some materials just don't work with variable power. Take a light wood, it reflects much of the power until it begins to burn and then it immediately over burns as the charred dark wood absorbs much more of the power.

mikeCAD

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Re: A little problem
« Reply #6 on: October 20, 2016, 10:55:55 AM »
Dears,

I've the same "problem", but playing around with "speed" and "power" seems to solve it.
I tried to make thin lines and it worked - speed 5000, power 220 with a 2,5W laser

Administrator

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Re: A little problem
« Reply #7 on: October 20, 2016, 10:58:24 AM »
Welcome to the forum Paul and Mike...!!!
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

mikeCAD

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Re: A little problem
« Reply #8 on: October 24, 2016, 10:45:14 AM »
Thanks administrator.. but I'm not sooo new any more ;-)