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Messages - wild.bill

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1
General Discussion / Re: Lightburn
« on: April 20, 2018, 10:09:08 PM »
OK - you got the motors going the right direction using $3=7 - so are you engraving yet?

2
T2 Engraving / Re: Can T2Laser Cut things like this?
« on: April 20, 2018, 05:47:14 PM »
Hay ZAX can you help me understand something that could answer things in different works. I have never used colors with DXF but I think I might understand it.

I have a DXF file with some art which is black and an outline that is blue. Can I set the speed/power/passes for the art and in DXF options-> Select output color select output only black and go to laser control and have it do the art. Then set up the speed/power/passes for the outline and this time in Select output color and choose blue go to laser control and cut the outline?

Two passes for the two colors from one file.

3
General Discussion / Re: Lightburn
« on: April 20, 2018, 03:09:28 PM »
Why would I switch the motor wire when it works in T2?  And you are talking about removing the tiny wire to reverse? My eyes aren't that good.

The laser light comes on. and moves but nothing is engraving.  In fact the laser doesn't turn off during blank spaces.    I updated GRBL to what Lightburn recommends (Although they say the one running T2 should be fine) and it completely borked it.   Reverted back this morning. Will continue to work on it.

Yes I am aware of the speed, in settings you can change it to mm.

One at a time - Why would I switch the motor wire when it works in T2? - this is easy. You said that you wanted to use LightBurn and the Y motors were backwards and LightBurn does not have the ability to reverse motors. You MUST reverse the Y motors if you want to use LightBurn. With that there are two ways that you can do this. The easy way is to just reverse the motor connector. If your controller is like most it has two connectors for the Y motors - just swap the connectors. Then with T2 you can change motor direction so do that as well. Then it will work with both software programs without any problem. The second way to reverse direction is via $ commands to GRBL but swapping the connectors is much easier.

If the laser is coming on and not even marking anything you might have hit the second most common configuration issue. In LightBurn power levels are set as a % and works from min of 0 to a max of 1000 so you need to set $30 and $31 (max and min spindle speed) to 1000 and 0, where T2 uses 255 and 0. Then the laser will go to full power.

For firmware the 1.1e in T2 works just fine. But remember to check the $ values after reloading because they will have the values that T2 wants. I have used 1.1e with LightBurn and have not seen any problems.

4
General Discussion / Re: Lightburn
« on: April 20, 2018, 05:48:29 AM »
If Y is backwards reverse the Y motor plugs.

Saying it's not etching does not help fix a problem, does the laser even
turn on?

The most common problem with new software (to you) is not
configuring it properly. With LightBurn the most common problem is not
setting units properly in the device settings. It default speed
is mm/sec and T2 is mm/min so you might be moving the head
60 times faster then you want - that would make it not etch.

5
Spare Parts Sources / Re: Laser will stop in the middle of a burn
« on: April 19, 2018, 04:04:13 PM »
bad power supply or bad power connection.

6
General Discussion / Re: Printing vases
« on: April 18, 2018, 07:31:52 AM »
I guess its time I said something here - I did a bunch of vases a while with PLA. The one thing that I found helped the most was going from a .4 nozzle to a .8 nozzle but also had good results with a .6 nozzle. With the .8 I doubled the wall thickness. Just another idea which is easy to try.

7
General Discussion / Re: help! broke glass print bed!!!
« on: April 16, 2018, 04:25:56 AM »
I use ABS most of the time so I do heat things up a lot. Good luck with it.

8
General Discussion / Re: help! broke glass print bed!!!
« on: April 12, 2018, 04:00:49 PM »
All I have to do is look at it and it tries to get away.

9
General Discussion / Re: help! broke glass print bed!!!
« on: April 12, 2018, 01:41:45 PM »
I laser etch the back side of the mirror just to put a logo on it. You see the logo as you print. It does not help the print it just looks better.

The PEI has adhesive on both the back so you just stick it onto the glass and roll it smooth, and then you prints stick onto the PEI and come off easily after things cool down.

The reality is I have a half dozen mirrors with PEI, Buildtek, hair spray, glue stick, ... so I can choose what works best for what I am printing.

10
General Discussion / Re: help! broke glass print bed!!!
« on: April 12, 2018, 07:36:04 AM »
I tired aluminum once and it did not work out well. As the aluminum heats it will warp some and would never leave the level surface that you need. On my bigger printer I use mirror's because they tend to be a little thicker and are usually quite flat. Then I put PEI on the mirror. Using the laser I even engraved a logo on the back of the mirror.

On my smaller printer I use regular window glass. I have had these break several time and it was always on a larger print using ABS. As the ABS contracted it put stress on the glass and it cracked.

My solution was to make the bigger prints on the big printer which had mirrors.

11
T2 Engraving / Re: Linear edge fringe burn
« on: March 26, 2018, 04:35:29 AM »
On the Laser page - Settings->Advanced->Dynamic Laser Power
enable that option

12
Engraving / Re: Engraving Acrylic rolling pin
« on: March 08, 2018, 10:13:18 AM »
I guess I can say that I am addicted and the way to avoid a divorce is to keep making things for my wife. How can she be mad when I give here things?

Oh and I have at least two of everything on the list and still have a wife.

13
General Discussion / Re: Lightburn
« on: March 03, 2018, 11:31:54 AM »
And a slate coaster made on the K40

14
General Discussion / Re: Lightburn
« on: March 03, 2018, 11:26:06 AM »
My glass is always half full (usually with Bass Ale) -- it was a good excuse to buy another bigger machine.

15
General Discussion / Re: Lightburn
« on: March 03, 2018, 11:17:07 AM »
It's focus is on CO2 laser's looking to replace things like RDWorks and LaserWeb, but will work with any GRBL or GRBL-LPC machines. But beware that the default for setting speeds is mm/sec not mm/min like most of the software for diode based laser.

There are still quite a few growing pains - but I will be using a lot soon instead of RDWorks because I don't expect T2 to ever support RuiDa DSP controllers which is what my new machine has - it's replacing my K40 that went up in smoke with a big bang. High Voltage fault melted the pins off the high voltage FET's and make the whole PCB black with no hope of saving the power supply.

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