Laser cutter and gShield

[Yves Quemener]

Hey all. I updated the wiki page on the laser cutter to explain what I did
and what is left to do.

http://quake.tokyohackerspace.org/index.php/Laser_Cutter_Resources#Replacing_the_board_with_a_GRBL_shield_.28gShield.29

It is a summary so don't hesitate to ask me if you are stuck somewhere. And
feel free to use the gShield for this or anything else, consider it a
donation.

[Taylan Ayken]

Just putting these here but will update wiki soon:

I started documenting and reverse engineering the current board. Datasheet can be found here: http://www.3wcad.com/ Our board is the one at the very top (6C6879-LASER-M2) and datasheet is here: http://www.3wcad.com/download/M2%E4%B8%BB%E6%9D%BF%E7%A1%AC%E4%BB%B6%E6%89%8B%E5%86%8C.rar

Things done: Although pinouts for most connectors are there at page 2, pinout for the flat ribbon cable is nowhere to be found. It basically combines X stepper and XY limit switch headers into one. 5V pin was tricky as it has a diode in between the %V rail and the pin. Found the pinout and documented it. Now trying to find the cable type (Probably an FFC cable with 12 pins and 1.5 mm pitch, cable marking "awm 80c 60v 20624 vw-1", only 9 pins are used).

Also reverse engineering the schematic for laser power output pin. Will be done tomorrow and have some sort of schematic in Eagle for all connectors and laser enable pin. Maybe even go to motor driver section.

--
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[Taylan Ayken]

After some time, I went back to documenting the laser cutter. Things done today:

- Ribbon cable problem solved, it's a 1.25 mm pitch 12 pin FFC.

- Wiring map of the entire machine.

- Found this article about it: http://3dprintzothar.blogspot.jp/2014/08/40-watt-chinese-co2-laser-upgrade-with.html

Now I can start designing in peace.

--
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[David Van Cleef]

I found that article a couple months ago. I thought I had told you about it. Sorry if not.

On Tuesday, February 17, 2015 at 10:47:03 PM UTC+9, tayken wrote:

After some time, I went back to documenting the laser cutter. Things done today:

- Ribbon cable problem solved, it's a 1.25 mm pitch 12 pin FFC.

- Wiring map of the entire machine.

- Found this article about it: http://3dprintzothar.blogspot.jp/2014/08/40-watt-chinese-co2-laser-upgrade-with.html

Now I can start designing in peace.

On Monday, November 3, 2014 1:43 AM, 'Taylan Ayken' via TokyoHackerSpace <tokyohac...@googlegroups.com> wrote:

Just putting these here but will update wiki soon:

I started documenting and reverse engineering the current board. Datasheet can be found here: http://www.3wcad.com/ Our board is the one at the very top (6C6879-LASER-M2) and datasheet is here: http://www.3wcad.com/download/M2%E4%B8%BB%E6%9D%BF%E7%A1%AC%E4%BB%B6%E6%89%8B%E5%86%8C.rar

Things done: Although pinouts for most connectors are there at page 2, pinout for the flat ribbon cable is nowhere to be found. It basically combines X stepper and XY limit switch headers into one. 5V pin was tricky as it has a diode in between the %V rail and the pin. Found the pinout and documented it. Now trying to find the cable type (Probably an FFC cable with 12 pins and 1.5 mm pitch, cable marking "awm 80c 60v 20624 vw-1", only 9 pins are used).

Also reverse engineering the schematic for laser power output pin. Will be done tomorrow and have some sort of schematic in Eagle for all connectors and laser enable pin. Maybe even go to motor driver section.

On Thursday, October 2, 2014 7:04 PM, Yves Quemener <quemen...@free.fr> wrote:

Hey all. I updated the wiki page on the laser cutter to explain what I did
and what is left to do.

http://quake.tokyohackerspace.org/index.php/Laser_Cutter_Resources#Replacing_the_board_with_a_GRBL_shield_.28gShield.29

It is a summary so don't hesitate to ask me if you are stuck somewhere. And
feel free to use the gShield for this or anything else, consider it a
donation.

--
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