jlauer

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  • July 15, 2014 at 3:07 am in reply to: TinyG / TgFX Problems #6435
    jlauer
    Member

    This sounds like Java’s garbage collection. It “stops the world” when it needs to start collecting and that can kill your Gcode from sending smoothly. When you say it keeps being slow on the next run that feels for sure like garbage collection.

    Try out http://chilipeppr.com/tinyg and run the job. Does that work better? Chrome’s Javascript garbage collection is amazing.

    July 12, 2014 at 6:49 pm in reply to: Macro Support #6428
    jlauer
    Member

    You are in luck. Just launched a Macro widget inside ChiliPeppr Hardware Fiddle. If you go to the TinyG workspace at http://chilipeppr.com/tinyg you will see the new widget in the Workspace toolbar.

    Check out the “Watch Gcode Response” sample script for a really awesome way to see what your Gcode is doing and respond to it.

    Macro Widget

    July 12, 2014 at 4:25 pm in reply to: z-axis mesh correction #6423
    jlauer
    Member

    It looks like you’re in luck. Just released an Auto-Level for TinyG inside ChiliPeppr Hardware Fiddle. http://chilipeppr.com/tinyg

    Youtube

    July 11, 2014 at 1:03 am in reply to: G28.2 command to auto-level a PCB? #6395
    jlauer
    Member

    Ok, nailed it. I was able to use the Three.js library to do raycasting onto my mesh from the G38.2 command. That enables me to offset the Z. Here’s what it looks like.

    At start of process you see region you’ll probe.
    step 1

    After probing you see your matrix. This is exaggerated 10x only.
    step 2

    Then you can view your raycasted PCB Gcode morphed to the probe data.
    step 4

    Then you get your final modified Gcode. Lines with Z’s get modified. Every G0/G1 without a Z gets a Z added to get best possible chance of matching probe warpage. Only problem remaining is splitting long G1 moves into sub-G1 moves to get better matching of warpage.

    G00 Z2.0000  (al z mod 2)
G00 X0.0000 Y0.0000 Z2.0000 (al new z)
M03
G4 P3.000000
G00 X0.3147 Y0.3788 Z1.9983 (al new z) 
G01 Z-0.1017 F254.00  (al z mod -0.1) 
G01 X0.2800 Y0.4626 F508.00 Z-0.1015 (al new z) 
G01 X0.2800 Y52.8773 Z-0.1015 (al new z)
G01 X0.3147 Y52.9612 Z-0.1015 (al new z)
G01 X0.3788 Y53.0253 Z-0.1015 (al new z)
G01 X0.4626 Y53.0600 Z-0.1015 (al new z)
G01 X14.6826 Y53.0600 Z-0.1015 (al new z)
G01 X14.7078 Y53.0495 Z-0.1015 (al new z)
    July 8, 2014 at 12:26 pm in reply to: G28.2 command to auto-level a PCB? #6365
    jlauer
    Member

    Flux, you are awesome. Totally worked. Had no idea that was a new feature. It’s EXACTLY what I needed. Check out the results of running the new auto-leveller inside http://chilipeppr.com/tinyg

    Auto-Level

    The results of the PCB auto-leveller in the image are exaggerated by 50x to help see the warpage. In the worst-case I have a 0.28mm rise from lower left to upper right. That’s a big deal which is exactly why I want to auto-level.

    Question for you? How are you then converting your auto-level data to adjust Z-heights in your Gcode?

    • This reply was modified 10 years, 4 months ago by jlauer.
    June 29, 2014 at 1:41 pm in reply to: TinyG Doesn't move as intended #6278
    jlauer
    Member

    Hi Ted,

    I’d suggest trying the ChiliPeppr app to send. I put a lot of flow control into the app by watching the planner buffer on the TinyG. I also use the RTS/CTS flow control as another layer. Just go to http://chilipeppr.com/tinyg to run the app in your browser. You will have to download the Serial Port JSON server to your local box with the serial port, but can run the web app on any machine remotely.

    Curious if this will solve your problem.
    -John

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