Anyone using GRBL?

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This topic contains 11 replies, has 4 voices, and was last updated by Profile photo of Dev Dev 1 year ago.

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  • #4327
    Profile photo of chevydan6
    chevydan6
    Participant

    Is there anyone using GRBL and have recommendations?

    #4740
    Profile photo of mschrock
    mschrock
    Participant

    Oh!Oh!Oh! Me! Me! Me! I am!! What questions do you have?

    #4741
    Profile photo of alan
    alan
    Participant

    Have you replaced the board with a g-shield like the ones inventables uses, or are you running GRBL on Ramps (something I saw on github) ?

    #4743
    Profile photo of mschrock
    mschrock
    Participant

    I’m using an arduino uno with the simple CNC V3 shield from amazon and stepper drivers either a4988 or drv8825. Total of about $25 cost. I added a simple relay module and enabled router on/off control.

    I like that it is modular so if I do something silly and blow a driver its a simple swap and back in business.

    I would only consider ramps if I wanted to tandem drivers or 3D print.

    #4746
    Profile photo of alan
    alan
    Participant

    What’s something like that take to put together? Soldering?

    I’m wanting to go use Easel for both some basic part drawing an communication, but bought the kit here from “the man” and got the ramps stuff by default.

    #4747
    Profile photo of mschrock
    mschrock
    Participant

    If you have the RAMPS, and drivers the least expensive thing is to looking the GRBL for ramps. But you could reuse the drivers off the ramps setup with a $10 uno and a $11 cnc V3 shield

    The shield has the exact stepper header connections, so the original cables would connect. No soldering. You could splurge and spend $3 more and get 4 drivers with the shield.

    If you want to add auto on/off router control, the add a $6 one or two channel relay if you don’t mind some wiring.

    #4765
    Profile photo of alan
    alan
    Participant

    If you can imagine what I might look like in reading that post…

    Deer in headlights.

    I have absolutely no idea what you just did there, other then GRBL on Ramps, which I’ve looked into. Have you tried it?

    #4796
    Profile photo of mschrock
    mschrock
    Participant

    My apologies.

    I have not tried GRBL on ramps yet as I went the native GRBL approach.

    I will give the GRBL for ramps a go in a few minutes tonight and report back with a step by step guide.

    #4798
    Profile photo of alan
    alan
    Participant

    Very awesome and much appreciated. If you’re anywhere in the mid-atlantic sometime, I’ll owe you a few beers.

    #4799
    Profile photo of mschrock
    mschrock
    Participant

    Prerequisites: You are on windows, Arduino is installed and arduino mega are connected to computer. You also know what com port the arduino is connected to.

    Step 1 Download GRBL for RAMPS from: https://www.dropbox.com/s/onwkce3wc5ieahx/grblForCyclone.zip?dl=0 or use the attached file. I made edits to match the setup under the “marlin” page here on this site. (I know it says cyclone, but it will work wonderfully with our arduino megas)

    Step 2: Extract zip

    Step 3 open folder, double click grblForCyclone.ino, it should launch Arduino

    Step 4 be sure board and com are configured under Tools menu. (arduino 2560)

    Step 5 Upload to ardunio There may be error messages, but as long as you get Uploading Done it should work. If it fails miserably recheck com port selection, reboot computer, curse swear…

    Step 6: launch Easel.

    I shamelessly used the code with minor edits from: https://github.com/carlosgs/grblForCyclone

    #13931
    Profile photo of Dev
    Dev
    Participant

    OK mschrock, is there anything to configure in Your grbl “make”?
    perhaps steps per mm, or anything?

    Thank You very much for those files and your answer.

    Dev

    #14571
    Profile photo of Dev
    Dev
    Participant

    ok, it works nice, but I’d like to add endstops. Any ideas where to connect them on ramps 1.4 board?
    the wiki od GRBL for ramps says that I need to use AUX3 header…
    any ideas?

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