# Please Help! X Axis Position is less than minimum error

**URL:** <https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494>\
**Category:** Original/PRO Series (Buildbotics) (Gen 1)\
**Created:** [November 1, 2020, 9:05pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494 "2020-11-01T21:05:17Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [November 1, 2020, 9:05pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/1 "2020-11-01T21:05:17Z")

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I just set up the new machine and updated the firm ware. I cut a 32.5” x 32.5” MDF spoil board and centered it in the machine, 1” setback from the front of the Y gantry edge. After homing I place the touch probe on the corner of the waste board, center a 1/4 bit a couple of mm over the probe and hit the “Probe XYZ” button. It probes Z, then X, then Y, and then it displays the “X axis position is -4.777 than minimum soft limit.”

I’ve tried rebooting the machine, I’ve looked up all of the videos on YouTube and searched the forum here first. I don’t know what to do at this point.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/b/b5e04d5024b13f57d95df7c07a649cde5c57ddfd.jpeg) ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/3/e/3eac2b6ce688ef4c68ed22f987f95fe529ff440e.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/9/907d2bd9acce1f2d8a023d7a637212868582839f.jpeg) ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/1/109e158666cfe84384d15a7cdd9c97193f4de408.jpeg) ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/b/9/b9f06e8bc17016aa7d9046bbff7e65d195cf218a.jpeg) ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/8/82724383a2354a3b2f1215aa337fe6ed50c51cc1.jpeg)

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [November 1, 2020, 9:20pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/2 "2020-11-01T21:20:00Z")

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The XYZ probe is only for the bottom left, you cannot use it for the center (so it’s assuming your in bottom left). You’ll need to use the eyeball method for that.

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [November 1, 2020, 9:20pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/3 "2020-11-01T21:20:59Z")

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Or @charleyntexas is coming out with a program to zero with the probe in other places in the next week or so: [How to set zero somewhere other than bottom left](https://forum.onefinitycnc.com/t/how-to-set-zero-somewhere-other-than-bottom-left/803/16)

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [November 1, 2020, 9:24pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/4 "2020-11-01T21:24:50Z")

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I have updated the post to include pictures of the spoil board spacing and touch probe placement at the bottom left corner of the machine.

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [November 1, 2020, 9:32pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/5 "2020-11-01T21:32:54Z")

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Maybe it’s the size of the waste board at 32.5"? I’ll go cut the spoil board down to 32.25 and try again.

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [November 1, 2020, 9:40pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/6 "2020-11-01T21:40:20Z")

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Is the file set for xy zero center or bottom left? Check it’s not center.

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [November 1, 2020, 9:53pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/7 "2020-11-01T21:53:19Z")

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I only have the onefinity test file in the drop down.

I just cut the waste board down to 32” and I think it’s working. It slammed home a little hard after the probe, but I didn’t have any errors. Going to try to flatten the wasteboard and see what happens.

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**Author:** ![charleyntexas](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/charleyntexas/32/118_2.png) [@charleyntexas](https://forum.onefinitycnc.com/u/charleyntexas)\
**Post date:** [November 1, 2020, 10:23pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/8 "2020-11-01T22:23:39Z")

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My companion software will allow you to place your touch plate normally (Left Front Corner) and have a resulting Origin (XYZ Zero located anywhere your spindle can reach. This also includes zeroing to the center of a circle. You can also use the touch plate on the right corner and have a right front corner zero location. “Infinite Possibilities” right!?

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [November 1, 2020, 10:25pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/9 "2020-11-01T22:25:22Z")

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Ryan,  
Is the file your trying to cut set for zero in the center of the board or the bottom left for xy zero in the program, not on the machine?

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [November 1, 2020, 10:42pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/10 "2020-11-01T22:42:17Z")

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I’m not even cutting a file yet.

The file I will be cutting starts at the lower left, which is why I’m attempting to use the touch probe in the lower left corner.

I’m just following the videos I’ve seen and doing a very small number of steps before hitting an issue.

What I’m attempting to do is:

Turn on machine.  
Home machine.  
Probe XYZ.

There’s no file in this workflow yet. I can’t get the machine to do this basic steps so I haven’t attempted a file.

After cutting down the spoil board to 32” square, I try the workflow outlined above and hit the error for the Y axis now. This leads me to believe I have the spoil board placed incorrectly on the table top (yes, touch probe on lower left corner).

What is the exact distance the spoil board edge should be placed in relation to the front of the Y gantry?

 ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/0/6/069df42cc922a0eaf5aee0ed86e122d60c049175.jpeg)

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [November 1, 2020, 10:49pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/11 "2020-11-01T22:49:29Z")

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If your cutting the maximum extremes, you can’t use the touch probe because after it probes it will jog the bit to the front left…but since your probing the extreme there is no room for it to return to the front left. Try zeroing without the probe.

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**Author:** ![Mhadlock](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@Mhadlock](https://forum.onefinitycnc.com/u/Mhadlock)\
**Post date:** [February 21, 2021, 9:21pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/12 "2021-02-21T21:21:52Z")

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I am having the same issue. This was helpful.

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**Author:** ![alden](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/alden/32/161_2.png) [@alden](https://forum.onefinitycnc.com/u/alden)\
**Post date:** [February 22, 2021, 1:50pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/13 "2021-02-22T13:50:27Z")

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I have found it extremely helpful to have a full size wasteboard, home x and y, set up the laser and print a grid of 10mm lines for y and x. I now know where every 10mm crossing is on my wasteboard which makes everything so easy to line up. Now you can pick, say the 200x mm line crossing the 200 y mm line, center the bit over that intersection and 0 out x and y. Use the cross hair lines to line up your work piece, zero z and your good to go. Works very well for me.

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**Author:** ![Steve\_M](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Steve\_M](https://forum.onefinitycnc.com/u/Steve_M)\
**Post date:** [February 24, 2021, 4:47pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/14 "2021-02-24T16:47:58Z")

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![OF wasteboard](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/0/0e8d445d017877b7d68b688c50ed74ef282cb545.jpeg) @ Ryan You said you set back 1" from the front edge. I’m a newbe also. If you look at the fine line on my spoil board it is the limit of my machine which is about 1 3/16 (+/-) from the edge of the Y foot. You are asking the machine to move past its limit. I have the spoil board topped with another 3/4 MDF scrap which I will call the scrap board. If you are a rookie like me you will chew it up in no time and it is easily replaced. I don’t work to the limits of the machine which is aprox 3 1/8 not 3 1/2 and you’ll see my scrap board starts about 2 1/4 form the limit of the machine. Hang in there it will all work out.

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**Author:** ![Steve\_M](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Steve\_M](https://forum.onefinitycnc.com/u/Steve_M)\
**Post date:** [February 24, 2021, 4:51pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/15 "2021-02-24T16:51:36Z")

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Sorry I meant limit is aprox 32 1/8 not 32 1/2

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**Author:** ![rbrady](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/rbrady/32/34_2.png) [@rbrady](https://forum.onefinitycnc.com/u/rbrady)\
**Post date:** [February 24, 2021, 6:52pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/16 "2021-02-24T18:52:17Z")

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Thanks for the reply. This was from November 2020. I’ve since moved past this issue. What was most helpful was the advice to cut a small mark at the extreme edges of x and y. This helped me figure out the exact cutting area. Next I needed to understand the toolpath and bit size mattered as well when creating a file to flatten the board.

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**Author:** ![CNCNewbie](https://avatars.discourse-cdn.com/v4/letter/c/a3d4f5/32.png) [@CNCNewbie](https://forum.onefinitycnc.com/u/CNCNewbie)\
**Post date:** [March 22, 2021, 7:02pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/17 "2021-03-22T19:02:19Z")

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Hello,  
I received my Onefinity and have now set it up over the weekend. This is my first CNC. On the weekend, I did 2 test cuts for my threaded wasteboard. Both cuts worked perfectly with no issues. These test pieces were on top of what is going to be my wasteboard and we’re attached via glue and tape method. My wasteboard is screwed down to my table top. I used the probe to probe xyz on both cuts. I then went to carve the full threaded wasteboard and while probing xyz from the front left corner which is also what my file is setup as, I keep getting this error. I also tried moving my work 0 rather than right on the front left corner to just inside the from corner and then just probed Z and again am getting the error.

I use Easel to create the file. When I created my wasteboard, I first put in a v bit to create a small grove around the perimeter of the table so I knew what the maximum cutting area is and then cut my wasteboard and attached it to the table top long the grove.

I am stuck as not sure what is causing the issues.

Thanks in advance.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/8/8af4bcac456ec9c735e4078078a46243674cb212.jpeg) ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/3/307bbc2bd62eaad8b1ed3901010e5f9834399ef7.jpeg)

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [March 22, 2021, 11:25pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/18 "2021-03-22T23:25:33Z")

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> [@Help! My Toolpath says 'Under' or 'Over" (BB controllers) OR 'Soft Alarm on AXIS" (Masso controllers)! (with videos)](https://forum.onefinitycnc.com/t/help-my-toolpath-says-under-or-over-a-faq-on-why/1982):
>
> While this FAQ was originally wrote for the Non-Elite Machines, the same principal applies to both. Over/under on non-elite controllers and soft alarm on elite controllers mean the same thing, so the below principals apply to all machines. Many new users to the Onefinity CNC often get the machine unboxed, assembled, and moving in a few minutes without ever needing to look at instructions. But then they home the machine and are alarmed when their screen looks like this: (Left picture is non-e…

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**Author:** ![CNCNewbie](https://avatars.discourse-cdn.com/v4/letter/c/a3d4f5/32.png) [@CNCNewbie](https://forum.onefinitycnc.com/u/CNCNewbie)\
**Post date:** [March 22, 2021, 11:49pm UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/19 "2021-03-22T23:49:16Z")

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I guess I am still confused after reading the link to the other topic. I first received Z position error message when using the probe but when I just manually zero X and Y and just probe for Z, I then get the error message about the X axis.

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**Author:** ![ACNailedit](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/acnailedit/32/371_2.png) [@ACNailedit](https://forum.onefinitycnc.com/u/ACNailedit)\
**Post date:** [March 23, 2021, 2:05am UTC](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494/20 "2021-03-23T02:05:42Z")

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I also created some wasteboard toolpaths in Easel. I created shallow 1" diameter pockets and 5/16" “drills” (pockets created by an endmill) to fit a bunch of 1/4-20 Tee Nuts on the bottom-side of the wasteboard.

I haven’t finished all the operations yet, but I set up my surfacing profile like this:  
I set a custom bit at 3/4" diameter, though I’m actually using a 1" diameter flattening bit. I did this to “trick” the Easel software in order to flatten the four corners which would have been rounded-over if I had set the bit in Easel to 1". In this way, the 1" bit will overhang the edges of the wasteboard by around 1/8". I used a 100% stepover value to overlap each pass by 1/8" since, again, the software thinks I’m using a 3/4" bit.

Since my wasteboard is also at my machine home position basically (as it seems yours is too since we both did the V-Bit method to find the full extents of the cutting area), I just jogged the machine to the home position, then on the slow-setting, jogged the X and Y inward (positive, + movement) by a few thousandths of an inch. Looks like you’re showing a soft limit error of about 0.33 mm 0.013"), so manually jog it in maybe 0.5mm in the X and Y directions. Then use the manual zero buttons to set that as your X and Y zero.

Depending on how you set your file up, this may leave you a sliver of material at the edges of the wasteboard to sand/chisel off. This is why I set up the toolpath with a 3/4" diameter bit in Easel, but used a 1" wasteboard bit in reality - to ensure it overhangs the wasteboard.

I also found that these little flattening bits I bought have a pretty short shank, and I had trouble lowering the router low enough to not hit the soft Z limit after probing with the actual bit. My plan here is to either slightly lower the soft limit in the controller setup panel (change it to about 140mm since I had the same issue you’re seeing, but I’ll make VERY sure my actual toolpath doesn’t cause the Z slider to approach the bottom of the Z carriage) or use a 1/4" bit extension that I just ordered. That may introduce runout/wobble, but it will make sure I’m far from the bottom-Z soft limit.

I’m curious how you set up your toolpaths, and how you’re designing your wasteboard.

[Next page](https://forum.onefinitycnc.com/t/please-help-x-axis-position-is-less-than-minimum-error/1494.md?page=2)
