CNC Machine Workpiece Zero: How to Set it Perfectly Every Time!

[@MHZizzi]

Thanks for taking the time to put these videos together - they're very helpful! I picked up the normally open version of the 3d tester after your previous review and I love it. I've got it in a dedicated tool holder for an ATC spindle so that I can use it to probe x, y, and z. It has made multi-tool jobs a lot more pleasant!

[@JBWorx]

That’s the way to do it. It makes much more sense in an ATC. 👍

[@danbrunback1753]

welcome back! have missed your videos if you have time you could make a tutorial on Eding cnc software, all the ones I've seen are in German.

[@jonmartinklevjer9505]

I asked for the same, it would be super useful if someone with experience could do some setup and usage videos on Eding CNC. And JBWorx is just superb at making explanatory and informative videos. We will just have to pray to the Deus Mechanicus, and hope our questions get heard.

[@JBWorx]

You guys crack me up. Yes it’s noted !!

[@cyppe]

@@JBWorx I subscribed based on this promise :) I use Eding CNC for a Hammer cnc router. I can get stuff done with it but I think I am missing out on most features so I really would love some tutorial of the most common features you use in it. Currently I only know how to load the program, do a Z probe, and how to hit the emergency stop if something goes wrong :) Would be nice with some more info. All tutorials available is for Mach3/4.

[@JBWorx]

Lol yes thanks for your subscription. You are correct Mach 3/4 has a lot of information floating around. Most users of a CNC machine will learn to a level to accomplish the projects they have to / want to do and not beyond that. Great that you would like to do more. So the next video is about G54 and G55 work coordinate systems. A really powerful command that is extremely useful. I show how to use it in Eding CNC but it’s rather universal and even works in GRBL. I hope you will like it.

[@geekoid183]

It's nice to see you again, great as always !

[@JBWorx]

Thank you for reaching out !!

[@seabreezecoffeeroasters7994]

Welcome back 🙃 Now back to my Plasma Table build ......

[@JBWorx]

Good luck for your build!

[@7alfatech860]

Very nice review of setting coordinates. Thanks

[@JBWorx]

Thx for reaching out !!!

[@josephjones4293]

Welcome back!

[@JBWorx]

Thx trying to post more in the next couple month

[@petterlund4806]

I've really been missing your vids! Hope you have some motivation to post more of them in the future :)

[@JBWorx]

I hope so too 😀😀

[@rengankrishnaiyer6912]

excellent video sir

[@JBWorx]

Thank you glad you liked it

[@zakariakhamees]

Thank you for your valuable tutorials. Is the Eding software completely free and is it compatible with grbl?

[@JBWorx]

The software license is included when you purchase the controller from Eding. You will no longer need GRBL.

[@jonmartinklevjer9505]

Hi @JBWorxStudio Thank you so much for the valuable content and information on this channel. Having recently moved to Eding CNC, I would love some more content on setup and use of this CNC software. So far I’ve only come across one German youtube channel, M5 by Michael Heyder, that explaines a bit about this software. Not being fluent in German makes it a bit difficult to follow this information.

[@JBWorx]

Hey that is super awesome that you are using Eding CNC as well. Yes I know his channel - he has an accent as well so yes not as easy to understand. I will note down to make a set up video on Eding.

[@jonmartinklevjer9505]

​@@JBWorx Please do! There are not many english tutorials, but plain basic ones, explaining Eding CNC, so I guess it would cater to english speaking users of this CNC software. And there are so many nice features within this software

[@JBWorx]

Agreed I was always happy with this software also if you ever need a repair on your board you can send it in and get it repaired or replaced for a flat fee. Pretty good service.

[@JeD23]

nice to see a new video! I just purchased a edingcnc 720 controller and was wondering what macro you are using for the 3d probe? It looks like there is a paid one from sorotec but I think they only sell it with the 3d finder. Greetings from germany :)

[@JBWorx]

Congrats on your purchase, I think you will like it. Yes correct Sorotec sells a macro with the probe - apparently these are from the probe manufacturer. However you can download the generic Sorotec macro for Eding CNC. I use a slightly modified English version of it. It has 3d probing but not very advanced.

[@andyrud3]

All my tools re 1/4" shank so my spindle has a 1/4" collet. I see the probe has a 6mm (.24") shaft. Will the 3D touch probe work with my system? If not, can it be purchased with a 1/4" shaft?

[@JBWorx]

I don’t think there is one with a 1/4” shank available. If you would ask me if you can put a 6mm bit into that collet for mashining I would say no don’t do it. However just holding the probe should be possible.

[@donepearce]

I prefer to zero from the top of the workpiece. To do this I have accurately measured the thickness of a piece of steel plate which is attached by wire to the controller. A ground wire with a croc clip is attached to the tool. XY zeroing varies depending on the job. Sometimes lower left, other times centre. If there will be tool changes, I try to place the XY reference in an area that wil not be machined. That means it is easy to get the new Z zero. I don't have a tool changer.

[@JBWorx]

You have a good workflow right there. Sometimes setting zero at the bottom just makes more sense as an example you use a vice and set zero to the top of the parallel that sits in the vice. Now you can deck off several pieces with slightly different thicknesses all to the same thickness without having to re-set z zero.

[@donepearce]

@@JBWorx Thanks. When I am working double sided I will set a top zero for the first side, and a bottom zero when it is flipped. This keeps vertical dimensions solid.

[@JBWorx]

Yes exactly 👍 you explained it with less words than me 😀

[@RUNCNC]

I use a wobbler on my 24k spindle. I spin it at 1000 rpm. It doesn‘t have any torque at this speed, but it doesn‘t Need to.

[@JBWorx]

Most machines will not go that low on the default settings of the VFD. I think that there are some settings to increase the torque at lower rpm’s by setting a min voltage. However these settings can damage the spindle quickly if run at a very low rpm as it creates a lot of heat. Good if you figured out a way to do it.

[@scratchbuiltdesigns]

Das mit der Kamera finde ich interessant. Nicht unbedingt zum edge finding, dafür ist es mir zu viel guesswork. Aber da könnte man evtl. selbst mit Eding so eine Art Steuerung wie bei Datron aufbauen, wo mit der Kamera die Bereiche gekennzeichnet werden, die der Taster anfährt. Letztes Jahr waren beim open house day von Eding ein paar Jungs da, die da eine vielversprechende Demo gezeigt hatten... Gibt aber imho zwei Dinge zu lösen. 1. Haltbarkeit der Kamera. Ich hatte mal einen ausfahrbaren 3D Finder an der Z-Achse und den haben die Schwingungen gekillt. Ne HD Webcam hat keine beweglichen Teile, könnte daher vermutlich auch dauerhaft klappen. 2. Sauberhalten der Linse. Meine Z-Achse ist an der Unterseite ziemlich verschmandet, mit einer fiesen Mischung aus KSS der MQL und feinsten Aluspänchen vom Gewindewirbeln. Da müßte die Linse irgendwie vor geschützt werden, mit einer Klappe, o.ä... Fänd ich klasse, wenn du in der Richtung etwas experimentieren würdest 👍

[@JBWorx]

Ja ich hab ein USB Microscope mit einem Schutz (einfach nur ein Plastik Aufsatz vor der Linse) welches etwas weiter oben angebracht werden kann. Ich denke für Projekte wo man eh außen die komplette Kontur fräst ist das sehr interessant. Danke für dein Input - hatte einen pneumatic cylinder vorgesehen um die 3D Probe anzubringen (a la Datron schwingt also von oben runter im Halbkreis) … ist dann aber wohl nicht so eine gute Idee wenn deiner das nicht ausgehalten hat. Danke für dein Input.

[@scratchbuiltdesigns]

@@JBWorx Ich hab da auf Insta mal einen etwas detaillierteren Post zu gemacht. Sowohl zur Mechanik des Ein- und Ausfahrens, als dann später auch zum Fail 👍

[@JBWorx]

Oh ja sehr schön dein Equipment!!

[@scratchbuiltdesigns]

@@JBWorx Danke dir 🙏

[@JBWorx]

Nice stuff English too. !

[@gebbi80]

Hi, nice to see that this kind of 3d touch probe is also available as "npn-nc" as well........ usually (99,9%) of these are "npn-no". Unfortuntelly PGFUN does no send to Germany.

[@JBWorx]

Oh I did not know that. So it’s not available on the German Amazon ?

[@gebbi80]

@@JBWorx Yes, correct. When I click on your link, Amazon says "This item cannot be shipped to your selected delivery location. Please choose a different delivery location."

[@JBWorx]

@gebbi80 so I looked on Amazon.de. I found the probe also as NPN but they are the NO contact version. If you cannot get the NC version I think it’s not the end of the world.

[@rengankrishnaiyer6912]

Sir, how do i know the top of a part if my machins is probing using a tool length sensor placed on my cnc table ? Do i have to premeasure its thickness first and enter somewhere in the probing function ? I have use a fixed thickness touch probe placed on top of a part and probed it. The probing macro knows the thickness of the probe hence it can 0 correctly above the part. Just that i don't understand how it can predict the top of a part if it is probing on a TLS placed on the table.

[@JBWorx]

You will probe twice. First on the calibrated standard position on your table. This will tell the controller the length of the tool. Next you probe on top of the part. This will tell the controller where the z zero of the part is. Now for the next tool change you only need to measure on the standard position on the table. The controller calculates the offset from tool one to tool two. Hope this makes sense.

[@rengankrishnaiyer6912]

@@JBWorx thank you for the reply. looks like your probing macro/function quite advance. I am using mach3 and macro I hv can be used to probe using touch plate. from probing I will hv the Z 0 of top of part. maybe you can do a video to demo wow do u probe with TLP?

[@JBWorx]

I used Mach 3 only for a week or so in the beginning so the macro on my controller (Eding) will be much different.

[@rengankrishnaiyer6912]

@@JBWorx sir, this means you you need to put tools in a tool table?

[@rengankrishnaiyer6912]

sir, could you demonstrate sequence of how you probe and determine tool length for each tool?

[@dekutree64]

6:30 If your spindle is electrically isolated from the bed, it's really helpful to wire up an LED so it will light up when the tool makes contact. More precise and won't leave a mark on the workpiece like homing by feel. The same electrical conduction can be used for auto probing too. Obviously it also requires a conductive workpiece, though at least for Z probing, you can hold a piece of aluminum foil on top of the workpiece and touching the bed and probe to that for a reasonably repeatable position.

[@JBWorx]

Yes that is a good suggestion. I also like the aluminum foil tape and just wrap the edge of the part if it is not conductive. However I stopped using this method after breaking a really expensive Datron bit. I set Z with my tool length sensor and use the 3D probe for x-y. It is accurate and fast.