MPCNC 2.8w $100 laser add-on complete

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This topic contains 251 replies, has 44 voices, and was last updated by  Ryan 1 month, 3 weeks ago.

Viewing 30 posts - 61 through 90 (of 252 total)
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  • #7940

    Peter T
    Participant

    @leo69 I have places a 10 kOhm resistor on the TTL output on the Ramps board.
    The step when i should adjust the current to 1,75A to get the max out of the laser, is stopping at 0,7A.
    Yes, the laser diod is connected.

    #7941

    Leo69
    Participant

    You’ve confirmed that the fan power is on full (S=255)? You’ve confirmed that you have 5V on the Ramps TTL output pins with fan power on full? Are you controlling fan with LCD or sending Gcode with host software?

    #7942

    Leo69
    Participant

    Post a pic of the entire test set-up if possible. I’d like to help more but not familiar with your driver version. If we can’t get this figured out then I wouldn’t mind trading you my spare driver for yours, if you’re at US address. This would give me opportunity to test and update the write-up accordingly.

    #7945

    Maker Baker
    Participant

    Ok awesome, thank you. Just wanted to have my ducks in a row before I have my dad bring his surface pro3 over to flash it for me so I do t have to move my tower and monitor the other room just to flash it. Unless if anyone knows if it can be flashed via octoprint from my raspberry pi

    #7948

    Ryan
    Keymaster

    I have one for you.

    Email me your address.

    Mine worked the same as the instructions, and if you pull the TTL plug it defaults to max power….oops.

    #7949

    Peter T
    Participant

    Thanks for digging in to my problem.
    I have tried both setting the fan output with Repetier and LCD.
    Checked the voltage with S0 = 0v and S127 = 2,5v S255=5v

    The thing is that the laser i working but i don´t think I can get full power out of it.
    I don´t have any test setup. It´s a complete setup.

    I have a 12V 20A Power supply that feeds both the MPCNC and the Laser, That should not be a problem.
    Maybe I have a to thin wire from the TTL module to the laserdiode. I took the same wire that i´m using on my steppermotors. LED RGB 4-led wire.

    As soon i can get a new A/V meter I will check whit that as well, maybe there is something wrong with my meter on A reading.
    It´s not the cheapest one i got, but there can be errors anyway.

    I´m from Sweden so it´s quite expensive to transport.
    I ordered a new TTL module today to see if there is a problem with mine. But i would take several weeks to get it from Hongkong.

    #7953

    Peter T
    Participant

    I posted some pictures in the Facebook group.
    They where to many and to big to upload here.
    This forum is loading very slowly for me.
    If there will be more pictures in this thread i will upload them to facebook if it´s okey.

    #7961

    Leo69
    Participant

    Do me a favor and try something for me. Disconnect the laser and connect your meter to the driver laser output instead and follow the steps for the driver VOLTAGE setting with these exceptions:

    1) Connect meter to laser output as in guide
    2) Turn fan to full power as in guide
    3) Adjust voltage to 6.5V as in guide but BEFORE you adjust voltage, turn current adjust 5 full turns clockwise.
    4) After the voltage has been adjusted to 6.5V, turn the current adjust 6 full turns COUNTER-CLOCKWISE.
    5) Connect the laser diode and continue with the current adjustment procedure.

    I just want to be sure the driver is at it’s operating current threshold when the voltage is set. I have the LED light to let me know but you don’t so I figure we can try cranking the current up, setting voltage , then cranking back down before connecting the diode for final tuning.

    Please give it a try and let me know how it works out.

    #7962

    Leo69
    Participant

    Also , you mentioned that the laser is coming on. Hot enough to burn things after it’s focused? If so then I would repeat the tuning with a different meter. It’s possible a cheap meter won’t read the current level past a certain point. I had one that wouldn’t go past 1.4amps and then I used my other meter and found I was actually at 1.9amps and had to adjust down.

    #7965

    Peter T
    Participant

    I will give it a try, with your instructions and return with the results.
    I can burn in wood and paper but have to have the feedrate about 2-400 mm/min

    #7967

    Leo69
    Participant

    Ok sounds like its definitely under-powered. I just posted a test version of image2gcode for you to try on the software forum. I think the bug is related to comma decimal separators used in your country so keep me updated on both issues. Thanks for the feedback.

    #7969

    Ryan
    Keymaster

    The fan ports is labeled wrong, or how ever you want to look at it. So follow the PDF and hard wire it.

    #7975

    Peter T
    Participant

    I tested as you described.

    1) Connect meter to laser output as in guide
    2) Turn fan to full power as in guide
    3) Adjust voltage to 6.5V as in guide but BEFORE you adjust voltage, turn current adjust 5 full turns clockwise.
    4) After the voltage has been adjusted to 6.5V, turn the current adjust 6 full turns COUNTER-CLOCKWISE.
    5) Connect the laser diode and continue with the current adjustment procedure.

    1. Check
    2. Check
    3. With 5 turns on the current adjust I was not able to get it stable on 6.5V. It shows everything between 3V and 22V. It get out of range in 0-10V settings on the meter.
    I ended up take the current adjust 1 turn counter-clockwise, so it been 4 i total. Then I was able to get i stable at 6.5v. When i was playing with the voltage the LED was turned of at the lower voltage. I didn´t notice exactly when it was turned off becouse of the jumping in voltage with 5 turns on the current adjust, but at 6.5v it was turned on.
    4.Ceck
    5. The result was the same as before, It stopped at 0.77A on one meter and 0.72 on another.

    I will try to get my hands on a Fluke meter but i´m not sure when.

    #7978

    Ryan
    Keymaster

    I tried it on 2 of my drivers and it worked as it should, and I got to try out the g2 lens as well.

    I think you might have a bad driver, if both meters showed the same result.

    #7980

    Peter T
    Participant

    @vicious1
    I think so as well.
    I contacted the seller, and waiting for replay.
    I ordered a new one from another re seller, Too bad is take so long time for the delivery.

    I also have to say that i´m really happy and impressed about the MPCNC, I haven’t done so mush with it so far but it´s really nice that we are able to do so mush different things with the same machine.
    I only have a Dremel on it at this moment because the routers are quite expensive in Sweden. The Dewalt is about 250$ if i can get it at all.
    This was just a notice but thanks for your good work.

    #7982

    Leo69
    Participant

    Ebay buyer protection is really good.sucks that you have to wait so long but you can probably use your current set up for some wood engraving In the mean time.

    #7985

    Maker Baker
    Participant

    I am really frustrated now, I can not get the firmware to flash, if someone could walk me threw it or help me please!!!

    #7987

    Leo69
    Participant

    Have you flashed the board successfully before? On same computer? Did you select the correct com Port and board type? What type of error are you getting?

    #7988

    Maker Baker
    Participant

    no this is my first attempt at flashing this. I have flashed my Prusa i3 with a RAMBO 1.3 mini from this tablet before with Arduino 1.0.6… I just installed Arduino 1.6.7 (IDE) and added the u8glib to my library and updated all libraries. I have com port 1 (only port on the tablet, used to flash Prusa before)… I have board: “Arduino/Genuino Mega or Mega 2560″…
    I am getting a lot of red text when verifying. but it still compiles, so when I go to flash it, the load bar goes to the end and says processor time out and I get no response from the mpcnc no led flashing or anything

    #7989

    Maker Baker
    Participant

    sorry it says “timeout communicating with programmer”

    #7990

    Leo69
    Participant

    How about a screen shot of the red text? Also, when you edited the pins header file in notepad did you just do a regular save? Just make sure notepad didn’t add a .txt extension to the filename or the compiler won’t find it. If so,open In notepad and “save as” .Select “all files” under save as type and make the filename has the .H extension. You may already know to do this, just covering possibilities here.

    #7992

    Maker Baker
    Participant

    I cant get a screen shot, but all the red text is about machine name so I’m not worried about it. and yes it saved as a .h file

    #7995

    Leo69
    Participant

    You have AVRISP mkII selected as the programmer?

    #7996

    Maker Baker
    Participant

    yes

    #7997

    Maker Baker
    Participant

    Arduino: 1.6.7 (Windows 10), Board: “Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)”

    In file included from sketch\ConfigurationStore.cpp:65:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    In file included from sketch\Marlin_main.cpp:47:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    sketch\Marlin_main.cpp:2715:36: warning: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wliteral-suffix]

    LCD_MESSAGEPGM(MACHINE_NAME” “MSG_OFF”.”);

    ^

    In file included from sketch\cardreader.cpp:6:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    In file included from sketch\planner.cpp:59:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    In file included from sketch\stepper.cpp:29:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    In file included from sketch\ultralcd.cpp:5:0:

    sketch\language.h:65:0: warning: “MACHINE_NAME” redefined [enabled by default]

    #define MACHINE_NAME CUSTOM_MENDEL_NAME

    ^

    sketch\language.h:61:0: note: this is the location of the previous definition

    #define MACHINE_NAME “Mendel”

    ^

    In file included from sketch\dogm_lcd_implementation.h:39:0,

    from sketch\ultralcd.cpp:39:

    sketch\dogm_font_data_marlin.h:12:25: fatal error: utility/u8g.h: No such file or directory

    #include <utility/u8g.h>

    ^

    compilation terminated.

    exit status 1
    Error compiling.

    This report would have more information with
    “Show verbose output during compilation”
    enabled in File > Preferences.

    #8001

    Leo69
    Participant

    What does this line in your configuration.h say?

    #define CUSTOM_MENDEL_NAME

    You can name the machine here but make sure the name is enclosed in quotes and 16 characters max.Did you make any changes there?

    #8003

    Maker Baker
    Participant

    ok sorry for stealing the thread here, but I finally got it to upload. I deleted all files and Arduino. installed Arduino 1.0.6 and the marlin files, changed pin number, and uploaded… on com 4… the latest Arduino version I installed earlier only listed com 1… I don’t know why, but for anyone else if you try to flash with a windows surface pro on windows 10, make sure you use Arduino 1.0.6 to say your self hours of headaches!!!!

    #8004

    Maker Baker
    Participant

    I didn’t get any name errors at all once I reverted back to 1.0.6. it all went smooth as planned took the 3 mins it should have earlier… feel like I wasted hours on nothing!

    #8005

    Maker Baker
    Participant

    I checked and confirmed the voltage, now I have to take this tablet back. when I get back here I will start the tuning part of the driver now, hope no issues with that because I know my led isn’t going to turn off, I have the ‘good driver a-11 like alted

    ill keep you posted once its tuned in!!

    #8008

    Maker Baker
    Participant

    well I think I fried my laser already… it powered on for 1 short second suppppper bright… now I cant get anything out of it… checked with ohm meter and its reading open… I put the current on just the leads from the driver and got 4003amps dose something not sound right or did I instantly burn the diode to the ground?

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