PAID HELP required (Central Coast/ Sydney AU- Openbuilds OX,TinyG

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  • April 16, 2017 at 4:26 am #10346
    TayTech
    Member

    Hi,
    I joined the Openbuilds community exactly a year ago and bought myself a 1500x 1000mm OX kit, TinyG and a Kress 800w spindle. Since then I have honestly just had problem after problem, some of which was my fault in testing limitations (3x TinyG’s later) but many, just through the billion variables required to work out in the DIY CNC world… hindsight I should have spent $5-10k on a pre-fab CNC as I will be using this for prototyping ideas for my next business.
    What I am looking for is someone on the Central Coast or around Sydney to spend a few hours with me working out why I am having such trouble with accuracy, setting up the machine, G code and outputting it from Fusion 360 or SW17 and also the tricks to Chilipeppr.. Before everyone says have you read the Wiki on the TinyG- It’s like searching for the answer before knowing the question sometimes and I am happy to pay someone experienced to help a brother out for money and I don’t mean $20 (I am willing to pay up to $500 for 4-8h)… on the other side I don’t want someone that’s just got one working without knowing that much to look at it (unless that’s all I can find near by).
    I have the bigger OX as I want to be making some large detailed panels so unfortunately I can’t just move on to a Stepcraft2-840 directly (too small) or invest in some other unit right just yet
    Cam software was a massive headache too but Fusion 360 and exporting a STEP file from Solid works might have resolved that unless I am advised of an even better way…
    Please ask around- I have no one I know that can help at all locally (only used commercial CNCs and no clue on DIY)
    Cheers
    Mitch Taylor

    Mitch@Tayloredtech.tv

    April 16, 2017 at 6:55 am #10347
    cmcgrath5035
    Moderator

    I’d suggest you advertise over at the Qx Group as well,

    They seem to be an active bunch and generally more traffic volume than on this Forum.

    Good Luck, DIY is a complex gig.

    April 16, 2017 at 7:04 am #10348
    TayTech
    Member

    Thanks I will do!
    Yeah, it’s been pretty gutting as I have so many projects I need to make and it just sits here hating me.. I reinforced the whole thing, made a table for it.. conduit-ed cables, connected ducted vacuum to it, vac/ clamp table…
    Cheers again

    April 18, 2017 at 1:22 pm #10349
    Gaylord
    Member

    Man can I relate to your frustration. So after several attempts I did get my set up working. However I ran into the Fusion 360 post processor issues but only relating to the location of the origin and direction of Z moves.

    So First let me say a couple things: (since I’m on the east coast in Maryland)

    Draw a simple brick of a part with 1 slot (Pocket) on the top. Nothing fancier than that.
    Go to Cam and generate the setup and tool path for the slot only using ALL the automatically generated (default) parameters and the tool from the suggested list that will fit your slot (smaller).
    Remove any bit or better yet disconnect or remove your spindle motor. TinyG does not care.
    (I’m assuming here that you do have communication set up)
    Power up TinyG, wait a moment, press reset button, wait, look for the return text string. Don’t worry about reading anything but the word “ready”
    (I’m assuming your using Terminal to send code to TinyG)
    I copy and paste the 360 code into a blank text page. Name it 1.
    Then I select all in text, copy and paste into the terminal line. (Only some of it will be visible but it is all there)
    Be ready to hit the TinyG reset button. Hit send and watch.
    Reset send and watch as many times as you need to prove that the motion matches your intention (your drawing) Make a list of everything you suspect or question. Be sure you are viewing from the correct position so that all the X,Y and Z moves are natural and relative to the part origin.
    From your list take the first thing that does not seem to be correct. Think about this one move only. Remember if the tool path previewed correctly in 360 and the machine did it wrong it can only be the TinyG or the machine. The machine is stupid and only does exactly what it is told. Find and correct that error.
    Always begin this process with the machine at machine home, 0,0,0
    If it looks home send $HOME and see if it says 0,0,0. If not fix that first.
    There are only two types of HOME. Machine HOME and Offset HOME
    During TinyG set up there are persistent and non persistent positions (settings). Know the difference and use the right ones.

    I did this over and over again until I got it right. Same part, no 360 parameter changes, same pasted text code. This is the machine (actually TinyG settings and machine wiring) wring-out, to get all the bugs, TinyG or hardware, working. I started this and then began re-writing the wiki into a single document set up manual. Because I got my machine working and have been doing other projects I did not finish the manual. But if you or others would like to contribute to my time I would consider finishing it. I can’t do much more than the above for you because I have to go earn some groceries. Good luck I hope this helps.

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