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Messages - Zax

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1
That was my thought process too. I wanted something simple (pre-assembled) that would
"just work", so I could learn how to use it and then move on to a custom machine later.

2
Projects / Re: Trying to get a project done
« on: Today at 06:09:37 AM »
I soldered and covered the joints with heat shrink, however, I made sure they were not at any flex points (close to the laser and to the control board).

3
I am extremely happy with my MP Maker Select v2 (re-badged Wanhao Duplicator) which was recommended to me by Pawpawpaw85.

The newer Plus model had just been released but users were reporting issues with the hot bed and overheating electronics, a few days later they stopped selling it due to these design issues which have since been corrected.

If I were buying another now I would look at the Plus but if the V2 is available at $100 less that would still be my choice.

4
If you have a non-TTL laser it needs to be connected to the "motor" output.

5
Benbox / Re: adjusting laser power?
« on: February 19, 2017, 04:41:35 PM »
Are you using Sketch Plus?

If so, upgrade to v1.3x and you can set different feed rates for raster and vector which should have the same result. It would actually be faster as you can use full power for the engraving with a much higher feed rate.

It's not a bad idea to have a separate laser power option for vector vs. raster, the same as I have for feed rate so I will add that to my "wish list".

Regarding the manual editing, just search for g-code commands and you'll see several sites. Grbl uses a subset, but most of the common commands are supported. The main ones that aren't are related to canned cycles or sub routines.


6
Projects / Re: Trying to get a project done
« on: February 19, 2017, 04:23:29 PM »
The mounting plate on my machine had additional holes and the larger module installed to those, it looks like you may need to drill some or make an adapter plate. You have keyholes which mine didn't, so obviously a slightly different design.

I just sat the driver module beside the machine and extended the wires to the laser.

Bigger is always better, for cooling.


7
T2 Engraving / Re: Pausing issues
« on: February 19, 2017, 03:10:03 PM »
Thanks Saboo.

The latest version v1.3x was released and has "Insomnia Mode" on the Settings menu, as well as the option to keep the display on. These take effect on the Laser Control screen, and I am also setting T2Laser as a priority task.

Windows ultimately has the final word on what it does regarding power saving, other programs like backup software or anti-virus can override these also.

I would also avoid USB hubs, especially the passive kind.

8
General Discussion / Re: Welding Curtain as Laser Shield Test
« on: February 19, 2017, 01:32:00 PM »
As it should, that tells you it is absorbing the energy.

I looked up the welding curtain and it varies between 10-20% transmission at 445nm so equivalent to OD1, obviously you want OD3+ so 3 or 4 layers should do the trick.

9
General Discussion / Re: test line g code
« on: February 19, 2017, 09:24:55 AM »
In T2Laser you can click Help and then Samples, there's one called Serpentine which may work for you.

Here's the g-code, which you can edit as desired:
( Generated by T2Laser )
(  DXF2Gcode for Grbl  )
( Start Point: LL      )
( Frame Mode : Abs.    )
( X Maximum  : 100     )
( Y Maximum  : 50      )
( Laser Power: 255     )
( Vector Rate: 1000    )
( Rapid Feed : 3000    )
G21
G90
F1000
M05
G01 X0 Y50 F3000
M03 S0
X100 Y50 M03 S255 F1000
X100 Y40 M03 S255 F1000
X0 Y40 M03 S255 F1000
X0 Y30 M03 S255 F1000
X100 Y30 M03 S255 F1000
X100 Y20 M03 S255 F1000
X0 Y20 M03 S255 F1000
X0 Y10 M03 S255 F1000
X100 Y10 M03 S255 F1000
X100 Y0 M03 S255 F1000
X0 Y0 M03 S255 F1000
M03 S0
M05
G00 X0 Y0 F3000

10
General Discussion / Re: Impounded Christmas present
« on: February 19, 2017, 07:44:59 AM »
If you paid by credit card request a charge back.

In the USA, lasers are controlled by the FDA (medical and industrial) and should have a license number to be imported. In most cases this isn't an issue with our "kits" but as you found it can occasionally be a problem.

When I purchased my 40W CO2 it got impounded by customs (also shipped by DHL) but was released after I faxed them the certificate showing class IV approval and the form linked below. Of course that actually had one as it uses interlocks and has a protective housing.

https://www.fda.gov/downloads/AboutFDA/ReportsManualsForms/Forms/UCM080778.pdf

In my case DHL were fairly helpful and worked to clear the unit from customs and minimize duty (I think I had to pay around $60 but the unit was much more expensive).

Good luck, I hope you can resolve it and get a (very) late Christmas present.

11
T2 Engraving / Re: grey scale issue (solved)
« on: February 19, 2017, 05:26:22 AM »
Thank you, your license key has been sent.

12
Benbox / Re: adjusting laser power?
« on: February 19, 2017, 05:01:44 AM »
It should probably be mentioned that...

M03 S0
M05

will turn the laser off.

13
Trouble Shooting / Re: LaserAxe firmware
« on: February 19, 2017, 04:58:21 AM »
Great post which I am sure will help others, and of course I appreciate you supporting T2Laser.

14
Laser Modules / Re: Is "FATBOY" 2300mW TTL good choice for me?
« on: February 19, 2017, 04:52:23 AM »
When you connect to the Nano, the boot loader (like the BIOS) starts up Grbl. During this start up process the laser pin isn't held at 0V (off) so on some systems the laser can momentarily pulse.

This is a hardware design flaw, and can't be corrected in software or firmware but my idea is to eliminate the boot loader and see if it helps. In the testing I did yesterday Grbl starts almost instantly so it should at least help but my system doesn't do the "pulse" so I have no way to know if it's fixed.

15
T2 Engraving / Re: I need help!
« on: February 18, 2017, 05:54:34 PM »
You can have it in either orientation, just reverse the motors as needed.

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