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Messages - Administrator

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31
Trouble Shooting / Re: T2 letter interiors and double raster print
« on: May 19, 2017, 11:14:35 AM »
Can you 'wiggle' the X carriage mount? The acrylic part? Mine moved smoothly back and forth but the acrylic mount was not 'snug'...I could still wiggle it around. I had to drill larger wheel mount holes so I could take up the play and get a good snug fit and still have the X axis move smoothly. A fair amount of work.

32
Trouble Shooting / Re: T2 letter interiors and double raster print
« on: May 19, 2017, 10:57:15 AM »
I am definitely having backlash on the x axis. I suppose the belts have about a quarter inch of flex,maybe 3/16. Disabling bidirectional scanning corrects the issue, but obviously takes twice as long.   :-\

If you remove the belts (yes I know, not again!!), does the X axis move smoothly if you push it (slowly) by hand? It should.

33
Wow awesome work...a true artist...!!!

34
Trouble Shooting / Re: T2 letter interiors and double raster print
« on: May 19, 2017, 09:04:39 AM »
'About' 1/4 inch flex by pushing in on a belt with your finger.

35
General Discussion / Re: Gcode / design for testing on new material
« on: May 19, 2017, 08:15:05 AM »
@kibodwin

If you decide to tackle this project and write your own software program to do this, I'll be happy to answer any technical questions you have a long the way. There is a lot of help on this forum.

36
What Can Be Cut? / Re: Engraving laptop's CO2 laser settings
« on: May 19, 2017, 07:52:02 AM »
A 40 watt CO2 laser is on my get list as well  :)

37
General Discussion / Re: Problem with the forum
« on: May 19, 2017, 07:32:52 AM »
FastStone is what I use too.

38
BenCutLaser / Re: PWM mod with different board (RESOLVED)
« on: May 19, 2017, 07:32:07 AM »
I know this is resolved but to further confirm or help . I have made a cut with this board at 7 passes on a 5.5 laser using BCL trial. With all I have read from here and a few emails to admin I have done some testing. The cut was made on a piece of 3mm project wood panel. I am still very new and sure I could probably increase effectiveness by tweaking my settings in my cut tool parameters.

With that said I don't believe (with the information I've received) that I would be successful with the board not in pwm. Physically I can notice a power increase that leads me to believe the board is in pwm and pulsing the laser up as it should.

Yes, your statements are correct.

39
Trouble Shooting / Re: T2 letter interiors and double raster print
« on: May 19, 2017, 07:30:30 AM »
Your belts are masking the real problem I think. Belts should have 1/4 inch flex in them next to the belt pulley. Remove all belts from their pulleys and slowly try to hand turn each pulley...are they secure on the stepper motor shaft? I had one that came loose after a fair amount of usage.

40
General Discussion / Re: Gcode / design for testing on new material
« on: May 19, 2017, 07:24:33 AM »
If you use BCL, it does this for you now...and it's quite extensive. If you don't use BCL, you can still use it in the free Trial mode and just copy the g-code it produces. See attachment.

While you can edit the g-code and save it in a file for future use, it's a tough way to do it because you have to set your laser power in raw mode. This means from 0-255 if you set 224 you have to use a calculator to figure out it's % of power. BCL lets you set your laser power in % and then figures out the raw power to insert into it's g-code.

You can choose from four pre-defined test shapes. BCL also will generate a single line burn from left to right or up and down that you can use it's g-code if you need that rather than a full test shape.

Keep in mind with woods, these low power laser machines do not have enough power to burn/engrave a surface line with and against the grain of the wood using the same speed. BCL excels in determining this difference for each laser tool you create. If you don't figure out this difference, your surface line burns will not look the same visually as they should. Figuring out this difference will be almost impossible manually as BCL, as well as T2, calculates these speed differences for all 360 degrees of line angles. A very difficult thing to do manually. You'll use up a lot of material manually testing this way.

In any event, use the g-code BCL produces as your starting point and then hand edit as needed. Good luck to you!

41
General Discussion / Re: Problem with the forum
« on: May 18, 2017, 01:26:58 PM »
@mrehmus

Yeah, what he said  :)

42
Other Software / Re: Vectric Aspire Software
« on: May 18, 2017, 10:57:25 AM »
Hi Gerald,

It's all a moot point now. This experience was back in 2016 when I was looking for a good software program that would support our laser machines. Cut2D Laser was an OEM product-only and you could not buy it. At that time, the Emblaser was shipping it with their machine and it was a closed system. Aspire's other software was too expensive for these low cost laser machines. In the end, Aspire just wasn't interested in what I had to say or what I needed.

I don't feel the need to continue to push my questions into a company or into their support structure. If they don't answer or take a long time to answer, that tells me a lot about who they are as a company and how they support (or don't support) their customers.

I've posted my experiences of my search elsewhere on this forum and, not finding anything, I decided to write BenCutLaser (BCL) and have never looked back. I had high hopes for the free HeeksCAD/CAM but the developer (Dan) wasn't interested in answering my questions himself and after joining his mailing list to ask my questions, my postings were not responded to. I finally figured out that was just a 'good ole boys' club they had there and they had no interest in letting a newbie into their circle. Scratch HeeksCAD/CAM off my list. In summary, every other CAM developer I contacted had no interest in converting their CNC software to support lasers. Not one.

After starting this forum and starting work on BCL, @Zax came aboard the forum and was working on his T2 software. At that time, BCL and T2 were the only CAM software targeted at these little laser machines. Now we have more software choices and things have gotten better in that respect.

43
What Can Be Cut? / Re: Engraving laptop's CO2 laser settings
« on: May 18, 2017, 08:08:37 AM »
It doesn't translate over to our low powered machines at all...not even close. You would have to test any of these materials yourself and determine your laser parameters needed to get the 'look' you want. And depending on the material, you might not be able to get the engraving look you want.

44
1. This sounds like a good idea (really) -- but -- this is the first I've ever heard of it...therefore I'm wondering: how big is this market? How many people would want to do this? I'm guessing the market would be small (but I could be very wrong about that). @mrehmus do you have an idea of the market size?

2. There would be hardware (a camera, sensors, etc.) to purchase to build a prototype. Obviously a lot of software designing, coding, debugging and testing, etc. This would not be a small project in my opinion.

3. While I don't know what the hardware would end up costing, some kind of kit would have to be produced and sold...for a price of I don't know what...but the big question would be: a. would the price is 'low enough' to be attractive and b. how many would actually end up buying the kit? That's really the key question...and obviously an unknown.

@mrehmus To coin a phrase on Shark Tank: "I'm out". But if you decide to move forward with your idea, please keep us all posted on your progress...and good luck to you...!!!

45
>I see what he is saying. He wants to cut what had been printed out already.

Got it.

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