How do you do tool height presetting?


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Thread: How do you do tool height presetting?

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    Member TTalma's Avatar
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    Default How do you do tool height presetting?

    I curious how many of you are using an automatic height setter and how does yours work? Let's see some great ideas!

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    Member Ntl's Avatar
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    Default Re: How do you do tool height presetting?

    I am and here's a video of how mine works.




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    Default Re: How do you do tool height presetting?

    If you are using Mach3, Ger21 made the Mach3 2010 screenset, It includes macros for tool zero and tool change offset.

    Mach3 2010 Screenset



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    Default Re: How do you do tool height presetting?

    I think you are asking the wrong question. The title of the thread asks about presetting. The video that Ntl posted is a tool setter, not a pre-setter. A pre-setter is a tool that is used outside of the machine to measure the tool for entry into the tool table.



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    Default Re: How do you do tool height presetting?

    109jb, true and unless you have a ATC spindle a tool presetter is not going to be very useful.



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    Default Re: How do you do tool height presetting?

    I don't get why you are touching off two different spots. Once you've touched off the top of the stock with the bit the machine should know where it is. On my mill I place the touch-plate on top of the stock, press a button on the touch-plate, the Z moves down and touches off. The thickness off the touch-plate is automatically added to the Z position and that's it. Ready to run.



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    Default Re: How do you do tool height presetting?

    I use the Makers Guide Triple Edge Finder that Bill Griggs sells. It's a great tool, because it not only allows you to set Z height, it allows you to set X=0, Y=0, if you are setting off one of the corners of the stock (like I do). I would have provided a link, but i when I tried to access the site, I got a message that the account was suspended. There are some videos on Youtube worth watching to see it in action.

    Here's are other version on EBay. https://www.ebay.com/itm/CNC-Edge-Fi...QAAOSwP6pbxCjQ

    https://www.ebay.com/itm/Corner-Cent...QAAOSw5EpcOMip

    https://www.ebay.com/itm/CNC-Corner-...ss!98335!US!-1

    I'm guessing any one of them would work fine. If you cut aluminum on your machine, you could draw one up in CAD, create toolpaths and cut your own.

    I use mine every time I start a new job, or change tooling. If anything ever happens to it, I'll probably make my own.

    Gary



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    Default Re: How do you do tool height presetting?

    the second touch off in the video is for tool length. when he changes tools it only has to re touch off the new tool on the second location. That way if you have machined off your reference surface of your material you can still get a tool length Z-zero set properly.



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    Default Re: How do you do tool height presetting?

    The OP DOES have an ATC.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: How do you do tool height presetting?

    ger21, ah, didn't know.



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    Default Re: How do you do tool height presetting?

    Quote Originally Posted by 109jb View Post
    I think you are asking the wrong question. The title of the thread asks about presetting. The video that Ntl posted is a tool setter, not a pre-setter. A pre-setter is a tool that is used outside of the machine to measure the tool for entry into the tool table.
    What I use is used for setting the tool height. If I had a ATC I would use it to set up the tools in the tool database with the software. You are correct that there are external one's as well but from what I've seen they are used more for large shops with lots of machines. So you don't have to buy a presetter for every machine and you just use the one and enter the values manually.

    Hope it clears things up a little bit for you. Nlancaster is correct on how the macro in the video I posted works, I believe it's a common way of doing it.



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    Default Re: How do you do tool height presetting?

    The shop I used to work at we had a block with the tool taper in it attached to a small granite table and then used a digital height gauge to measure the tool heights. The nice thing about an external one is that if you run lots of smallish jobs you can set up and measure your tools for the next job during a cycle on the current job. We did that a lot at that job because most of the jobs we ran were on the order of 20 parts with probably an average 15 minute run time. We set up new jobs once or twice per shift. That setup was used for just 2 machines



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How do you do tool height presetting?

How do you do tool height presetting?