My mpcnc project!

This topic contains 115 replies, has 9 voices, and was last updated by  Ryan 1 week, 4 days ago.

Viewing 26 posts - 91 through 116 (of 116 total)
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  • #55531

    Brandon
    Participant

    I updated the diameter to 3.175.

    Where do I add the G92 X0 Y0 Z0 command at in the gcode? Do I need to remove any these other G90 or G91 commands? I’m just plunging down about 3/8″ to and 1/2″ into the plywood after I hit start.

    Here is the first part of the gcode:

    ;Project Dragon 3.175 diameter
    ;Created by Estlcam version 10 build 11.015
    ;Machining time about 00:05:40 hours

    G90
    M03 S24000
    G00 X0.0000 Y0.0000 Z0.0000 F2100
    G00 Z5.0000 F480

    ;No. 1: Engraving 1
    G00 X3.2496 Y30.9301 F2100
    G00 Z0.5000 F480
    G01 Z-1.0000 F180 S24000
    G03 X6.0391 Y30.1713 I5.0403 J13.0219 F480
    G01 X6.1107 Y30.1303
    G02 X6.0943 Y30.0534 I-0.0108 J-0.0379
    G01 X5.9727 Y29.9850
    G01 X5.5728 Y29.7844
    G01 X5.1728 Y29.5835
    G01 X5.0512 Y29.5145
    G01 X5.0065 Y29.4800
    G01 X5.0168 Y29.4590
    M05

     

    Thanks,

    Brandon

    #55532

    Ryan
    Keymaster

    You are missing a few setting in estlcam, double check against these.

    EstlCam Basics

     

    As for the code, there is a specific tab for beginning gcode, or you can manually add it before the first g00 command.

    #55587

    Brandon
    Participant

    I think part of my issue with Repetier Host is that when I move Z 10 mm it moves 57 mm.

    Do these settings look right?

    • This reply was modified 1 month, 1 week ago by  Brandon.
    #55593

    Ryan
    Keymaster

    The settings you are showing are for a piece of allthread, sounds like you have a T8 for your Z axis. You need the other firmware.

    #55599

    Brandon
    Participant

    Oh… I have since upgraded to the T8 for the Z axis. I probably still have the allthread firmware? Will I need to use the Arduino software to flash the firmware on the Ramps?

    #55607

    Barry
    Participant
    Oh… I have since upgraded to the T8 for the Z axis. I probably still have the allthread firmware? Will I need to use the Arduino software to flash the firmware on the Ramps?

    Yep.

    #55691

    Brandon
    Participant

    Help?

    c:\program files (x86)\arduino\hardware\tools\avr\bin\../lib/gcc/avr/4.9.2/../../../../avr/bin/ar.exe: unable to rename ‘core\core.a’; reason: File exists

    exit status 1
    Error compiling for board Arduino/Genuino Mega or Mega 2560.
    Sketch uses 104098 bytes (40%) of program storage space. Maximum is 253952 bytes.
    Global variables use 4633 bytes (56%) of dynamic memory, leaving 3559 bytes for local variables. Maximum is 8192 bytes.

    #55692

    Brandon
    Participant

    Second time around it worked.

    #55697

    Barry
    Participant

    Yea, the arduino software is funky sometimes.

    #55794

    Brandon
    Participant

    My Z axis is still moving the same amount of distance, about 1/4″ per 1 mm in Repetier Host. Do I  need to try flashing the software again?

    • This reply was modified 1 month ago by  Brandon.
    #55796

    Brandon
    Participant

    I think I’m dealing with a steps/mm issue in the firmware. When I set Z to 200 it was much closer to 1/4″ per 10 mm’s.

    #55808

    Brandon
    Participant

    Does this look about right?

     

     

    #55810

    Brandon
    Participant

    I finally cut something… This is going to be so much fun!! Thanks Ryan!!!

     

    #55812

    Geoffrey
    Participant

    You shouldn’t need to change the steps per mm on your T8, just make sure you downloaded and flashed the firmware package ending in “T8”

    https://www.v1engineering.com/wp-content/uploads/2017/05/MPCNC813_GLCD_T8.zip

    #55816

    Brandon
    Participant

    I’ve flashed that firmware 3 times now and get the same results.

    The Z axis is supposed to be 1/32 microstepping right?

    #55839

    Ryan
    Keymaster

    Can you show that eeprom page again, now that you have flashed. Lets make sure it stuck. You are using a ramps board, purple drv8825 drivers, and a T8 correct?

     

    #55921

    Brandon
    Participant
    Can you show that eeprom page again, now that you have flashed. Lets make sure it stuck. You are using a ramps board, purple drv8825 drivers, and a T8 correct?

    Here is the eeprom page. I do have the same parts you mentioned.

    #55937

    Ryan
    Keymaster

    Pretty sure your Zsteps should bee 400 not 300.

     

    #55939

    Brandon
    Participant

    With it set to 300 when I put in the command to move the Z axis 25.4mm it actually moved one inch. If I remember right 400 moved more than an inch so that’s why I set it to 300.  If it works don’t fix it or?

    • This reply was modified 1 month ago by  Brandon.
    #55944

    Ryan
    Keymaster
    If it works don’t fix it or?

    Exactly!

    300 is a really odd number though, something is fishy but if it works it works.

    #56749

    Brandon
    Participant

    What would be fun to test my MPCNC?  Should I use the mill end or flute which is very sharp by the way.

    When should I use the mill end vs the flute? How deep should I cut text with the flute?

    I’m using pine wood.

    #56753

    Ryan
    Keymaster

    So the regular flat one is a classic endmill, there are also ball, bull and tapered. The pointy one is a V-bit. Flutes are the number of twists/cutting surfaces. So if you got them from me the V-bit is a 2 flute, I sell single and dual flute regular endmills (single is best for us).

    Regular endmills do it all, pockets and through cutting with not sharp inside corners (everything with have a radius equal to your bit’s). V-bits are good for carved out pockets and have the ability to do sharp corners. To go super generic, v-bits are for lettering and details in a sign (for example), endmills are used for most work, Ball ends are really good for 3D carving organic shapes.

    Fun….an STL carving is pretty interesting to watch, use a low stepover 2-5% for the finishing and stick to .5-.75″ deep.

    #57939

    Brandon
    Participant

    Are these two tools the same in Estlcam?

    Both of these were purchased through the shop.

    Attachments:
    #57942

    Ryan
    Keymaster

    Not sure what you are asking, the settings look the same.

    A 1″ step down is very not recommended. I know it is painful for some but for making small movements Millimeter will really make things easier to visualize. As well as metric feedrates. 8mm/s is easier to picture than18.9in/min since most of our moves are only a few mm at a time.

    #57947

    Brandon
    Participant

    Do I use the same settings for the v-bit as I do the end mill?

    I had that set to 1 mm on the production pc. Do these look like the correct settings or should I adjust it some?

    This is what I’m trying to cut. My father in law is battling cancer for the second time and is going through chemo. I’d like to cut this and do some type of finishing to it. I think I’ve see where you blacken the wording with a torch and then sand it and put some type of covering on it.

    If I can actually get it to cut, I need to figure out how to cut the actual moon shape out.

    #57961

    Ryan
    Keymaster

    The tool settings should be larger, you are missing the settings for the vbit. You need to update to the version ten that Estlcam has linked (I haven’t used 11 yet). The last setting is Vbit angle.

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