How to actually setup the machine

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  • March 8, 2013 at 12:46 pm #3873
    Donkey
    Member

    Greetings, first time poster here. Forgive my ignorance, I’m sure I’ll display plenty more of it before this is all up and running.

    New grbl board owner here. A long, long way from having a finished machine, however, I do have a few questions I haven’t located in the wiki, so I thought I’d ask to see if I could get a better understanding of a few things.

    In most all the videos shown online, the action seems to start and it all works fine. With no tool offsets, can someone explain the method of setting the tool up properly, on the Z-Axis? (or for that matter, the XO,YO on the part as well) I know it doesn’t magically know where the tip of the tool is and where the top of the part is, so how is that accomplished?

    I bought the shield from inventables prior to seeing this forum. I already had a Uno, so thought we’d get the board and be ready to tinker. However, after looking around on the wiki, it appears before I can start, I have to do the whole AVR thing, using “Method #3”, is that correct? (it would have been nice to know this on their website).

    Thanks for your time and support. It’s greatly appreciated!

     

    March 9, 2013 at 8:55 am #3875
    Donkey
    Member

    From watching some more videos online, I see it’s all done through G54, so that answers that.

    Are there any screen shots located anywhere so I can see anything in reference to using it? I’m sure it’s out there somewhere, but I’m obviously missing it. Or some documentation about the format the g-code needs to be in. I see the “ok” inserted between lines, when I’m sure I can get my post processor to do without to much trouble, but I haven’t seen any documentation about exact what is needed.

    Can someone point me in the right direction? I’m just trying to get educated before I start.

    Thanks!

     

    May 6, 2013 at 9:04 am #4111
    zerblatt007
    Member

    I do not usually drive my ShapeOko entering commands. I create a job in Cut2D and then move the spindle with buttons in Universal GCode Sender: https://github.com/winder/Universal-G-Code-Sender

    I usually set the job to start in the middle of the material and move the bit so it touches the wood, plastic or whatever I am going to mill.

    Then I start to transmit the gcode fil.

    The file includes commands to rise Z to a safe level, moves to where the job starts and runs through the job, returning to 0,0,0 and rises to 20mm over the start.

    I can post a minijob if you need to look at the code.

    May 8, 2013 at 6:35 pm #4117
    Riley
    Keymaster

    Donkey,

    I would go check the grbl forums for the specifics you are asking for.

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