Introducing the Onefinity 3 axis touch probe

The Onefinity 3-Axis Touch Probe allows you to quickly and automatically Zero your CNC’s X, Y, and Z axis or Z axis only. Our touch probe is manufactured by Triquetra a company that has been producing quality touch probes for years! Our probe is incredibly easy to setup, just plug it into the dedicated probe port on the back of the controller. No soldering, crimping or screwing required!

Our touch probe is designed to probe the top right corner instead of the bottom left corner like some of the competitors. This is benefical in maximizing your CNC’s cutting area as well as helping prevent damage to your cutter in case your connection gets interrupted. We also double probe each axis to ensure accuracy!


How long is the cable?

why would it matter lol

Because if is too short I will look for a different one. Not sure why that is funny.

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If Onefinity is endorsing its use and have tested it, one would think the cable length is adequate.


I certainly don’t think that.


By “you people” I’m assuming you are referring to EVERY Onefinity CNC customer on the forum!

Great way to win over the people and kick off your first post. It might just be me, but it does kinda make the hey I’ll help this guy out in the future when he has an issue, a request that will hit the ignore box quickly.

Not cool!! :-1:

Your assumption is incorrect. I was not referring to everyone on this forum, and this is not my first post. I was referring to Keith and Polnancec, who weirdly seem to question why I want to know how long a cable is on something where the cable length is critical.

Feel free not to help me in the future, MindofMcClure, if that is the kind of person you are.

Meanwhile, let’s get back on topic. Onefinity, can you please tell me the cable length (if this request is not too unreasonable)?

@charleyntexas Hey Charley… Can you add your wisdom here?

@garrett1812 Judging from the picture, it looks long enough to hit the 4 corners of the cut area. @OnefinityCNC would certainly have exact, but it doesn’t look like an issue for normal usage.

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Also looks like a standard 2 wire cord, so extending it would be very easy, if one desires.


Hmm, being that this touch probe now requires keying off the top right corner; it seems possible for the probe to shift during calibration. Yes, I do understand that this is now a feature to prevent damage and any shift would be tiny, but it makes me wonder on what impact this new design will have on calibration accuracy.

For example, if one runs the calibration routine 100 times in a row, would the probe have a noticeable shift from its original placement.

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It is a neat idea to touch off the corner opposite the material corner, to better utilize the work space on the CNC. The movement should stop as soon as the end mill makes contact with the probe, but I also wonder if it will slightly move the probe. I would guess that is one reason is measures twice.

Other machining and measurement systems I have seen can touch without moving, and probably the Onefinity can as well. I will have to do a test.

Most of the time, even if the X and Y was off by a millimeter it wouldn’t matter, but there are times where it could.

If it does become a problem I imagine you can still touch off on the corner with the material, so if there is any movement it pushes the probe toward the material.

The probe has a notch on the bottom that sits on the edge of the wood so it is impossible to be pushed out of the way unless it moves your entire project.

I think Stephen was referencing the way the probe works in the description and video, where it pushes the notch away from the material instead of towards it.

Thanks garrett1812, that was exactly what I was thinking. The good news is I can think of multiple easy ways to prevent this from happening (if it is an issue). Again, just wondering.

Good evening to all. For the past few years I have been making and selling the Triquetra Touch Plates. I have been asked and answered more questions about touch plates for a variety of CNC machine controllers, from Easel, Carbide Motion, Mach3, Mach4, UCCNC, Bob’s CNC, PicSender, UGS, and the list goes on. Of course I provide tech support for the Triquetra as well.

I can’t tell you how many people have called me because their touch plate keeps getting pushed across the machine until it errors out. I have diagnosed a number of things that caused probe failures, all of which would have either resulted in a broken bit, grinding belts, or stalled motors - IF - probing was done pressing the touch plate against the wood instead of just pushing it until the probing cycle limit was reached.

A probe failure is not inevitable. There are a number of things that can cause a probing failure, including but not limited to, dirty or burnt bits that aren’t conductive, paint on the collet nut, incorrect wiring, and believe it or not, forgetting to put the magnet (ground) on the collet. Even if you have all your bases covered there, you can still have an electronics failure.

Imagine a machine as stout as the OneFinity having a probe failure while pressing the touch plate against a securely mounted piece of wood. Something has to give. There is no scenario where it’s not a bad experience. So if it is so bad, why would you want one? Because probe failures are very rare, if you pay attention to what you are doing. 3 axis probing opens up all sorts of possibilities. I answered a challenge a few years ago about the repeatability of the Triquetra. I shot a video where I engraved a Triquetra Logo and hit the E Stop half way through. I marked the spot where the bit stopped with a pencil, removed the piece of wood from my machine, rebooted my computer and cnc controller and then mounted the wood in a different location. I re-zeroed with my touch plate and started the carving over. It cut air until it caught up with where I hit the E Stop and then finished. Were it not for the pencil mark, you would not have been able to tell where it had stopped. That’s just one of many reasons a 3 axis touch plate is worth having.

So what about bumping it with the bit and moving it since there is nothing to hold it in place. If you run a zeroing routine with a feed rate of 15 inches per minute then it will probably move it because the controller can’t detect contact and react quick enough to stop it. However, if you use a more reasonable probing speed like 3-5 inches per minute then you shouldn’t have any problem unless it is self inflicted. Then if you do have a probe failure, it won’t be a big deal and you’ll be thanking Mark for not breaking you bit. If you are really worried about it moving you can always hold it in place with one hand. I used to do that but don’t any more. I just start it and let it do its thing. I never worry about it moving and I am putting it on aluminum 99% of the time. Aluminum on Aluminum is as slippery as it gets and mine does not move.

The wiring I chose for the OneFinity is extremely flexible. It has ton of strands of copper with a silicone jacket. There is a generous length of 5 feet available to reach about anywhere on the machine. It also has a magnetic ground connector using a N52 rare earth magnet. It won’t fall off and if you put it on the collet nut it won’t get in the way either. There are two holes drilled in the touch plate and you can use either one for the banana plug. When not in use, you do not need to disconnect anything. In fact, I just let my magnet attach to the frame of my cnc when not in use.

I believe that a 3 axis touch plate will soon be a tool you will make you wonder how you ever got by without one.

I am be happy answer all of your questions. I can even tell you how to do 3 axis zeroing With a Fly Cutter, or a tapered ball nose.



5 feet from the controller to the end .


Thank you for this helpful answer!

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Great information Charley! Thank you!

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