So Im just starting out and learning as I go. I having a problem with the XYZ probe. I use the wizard to set it up, hit start and it will move the Z down until it hits the probe and keeps going until I tell it to stop. What am I doing wrong. Also Im using a new 22mm surfacing bit to surface my waste board.
The probe needs good conductivity through the collet (magnet on collet), endmill, to the plate. Instead of testing by crashing, use OpenBuilds CONTROL > Troubleshooting tab > touch probe plate to endmill and see if its detected
I am having an issue with the XYZ Probe Plus. I have the probe centered over the hole in the touch plate. I am probing in the left front corner as indicated by the probe screen. When I confirm the probe position and start the probe, it moves towards the front of the machine away from the plate instead of moving over the touch plate and then starts to lower the Z axis towards the table and I have to abort the probe operation. I have been reading some of the threads and they talk about the wizard probe but my wizard doesn't have that option. If anyone could let me know how to change the setting for this it would be greatly appreciated.
I home my machine in the back right. I move my X+ to move my X axis to the left and Y+ to move my axis from the back of the table to the front and my Z- to move my Z axis down. Everything appears to be set correctly as the machine homes correctly and the soft limits work for bed size.
X- = left and X+ = right. Y- = nearest front of machine, Y+ towards back of machine Z+ up and away from spoilboard. Z- = down toward the spoilboard All moves are "bit relative to stock" - for moving tables (instead of gantries) the same applies but can catch you offguard. What machine do you have? If both axes direction, and Homing direction are wrong, two wrongs will look like a right too.
I have a Workbee with a custom table. My table is X=770mm Y=960mm and Z=95mm. I am not sure if according to your response that I have to home my machine to the front left instead of right rear.
You can home back right top, standard config. Just fix Jog directions first ($3) then fix homing direction ($23) to suit. $23 just tells grbl of the switch is on axis mina or axis maxima. Far more important is $3.
I am not quite sure how to change this. This is what my script looks like but it won't let me change it. [15:57:41] [ $$ ] $3=3 ;Step direction invert, mask [15:57:41] [ $$ ] $4=1 ;Invert step enable pin, boolean [15:57:41] [ $$ ] $5=0 ;Invert limit pins, boolean [15:57:41] [ $$ ] $6=0 ;Invert probe pin, boolean [15:57:41] [ $$ ] $10=1 ;Status report options, mask [15:57:41] [ $$ ] $11=0.020 ;Junction deviation, millimeters [15:57:41] [ $$ ] $12=0.002 ;Arc tolerance, millimeters [15:57:41] [ $$ ] $13=0 ;Report in inches, boolean [15:57:41] [ $$ ] $20=1 ;Soft limits enable, boolean [15:57:41] [ $$ ] $21=1 ;Hard limits enable, boolean [15:57:41] [ $$ ] $22=1 ;Homing cycle enable, boolean [15:57:41] [ $$ ] $23=3 ;Homing direction invert, mask
I have done a work zero with moving the cutter to the zero position and used the paper technique. I am zeroing on the bottom right of the piece. When I load a g-code to run the piece it cuts to the positive side instead of the negative. It appears the the Blackbox thinks it's using the top right position as the zero point because that is where the probe went when I used it.
Sorry for so many replies but I just ran another probe leaving the probe set to the lower left corner but I placed the probe in the upper right corner and ran probe test. It tested correctly but when I went to cut the job it didn't compensate for the thickness of the probe plate and ran above the piece. Could it be a bad probe?
Fix your directions first. Probing, homing, etc all assume you have the basic directions correctly set up Go to OpenBuilds CONTROL > Grbl settings tab > scroll down to $3 > flip the switch of any axis that is currently NOT following Cartesian standards.
My directions are setup properly. After homing in the back right corner, my X axis moves in a X+ to the left and my Y axis move towards the front in a Y+ Direction, and my Z axis moves down with a Z- control. Everything appears to running in the correct way. When I probe XYZ in the lower left corner of my piece the probe moves in an X+ and Y+ directions away from the piece. After probing and setting the work zero, it machines above the piece not accounting for the thickness of the touch plate. I have uninstalled the program and started over but still have the same problems. So far, not so happy with the plug and play Blackbox.
If so your X and Y axes are reversed - X+ should be to the right, not to the left and Y+ should move (the bit) to the back, not to the front. Alex.
Ie wrong. Note the arrows on the jog keys Again, wrong, see the arrows on the buttons Correct As mentioned several times, fix your Grbl Settings. No one mentioned any need to uninstall. Happy to help, but please do follow the advice given See my advice early on in the thread - note yours is opposite in X and Y from what it should be Need further convincing: see Cartesian coordinate system - Wikipedia
With these settings are you referring to home front left? so I assume you are referring to homing in the front left corner?
No! It's not what he was referring to. We both notice that your X and Y is going the wrong way (because of incorrect wiring, or value of $3 - easier to fix $3 in Grbl Settings thus the advice above) when you say we immediately recognise that it is the wrong way round. X- should go left, Y- should move to the front - thus from your information, we know that your $3 Direction Invert value needs to change. So, lets proceed and fix it 1) FIRST Fix your Directions in $3 (Flip the switches of X and Y) and Save 2) Only then, once that's working properly you can fix Homing directions in $23 Grbl doesn't force you to home in any specific corner. You just tell it where you installed the switches, it does the rest: See Frequently Asked Questions · gnea/grbl Wiki Homing sets Machine Coordinates. Probing/SetZero/G10 sets Work Coordinates! So after you fixed your Jog Directions in $3 Direction Invert until it works like shown (when you Jog with the buttons onscreen) Then you just tell Grbl where the switches were installed in $23 Homing Direction Invert. If you switches are Right(x), Back(Y), and Top(Z) then $23=0 and that is the Grbl Default (as an example, if you have your switches somewhere else, tell us and we'll advise on $23 value) Don't worry about Homing first, you have a MUCH BIGGER problem in that your Motor directions in X and Y are WRONG - which is also what Alex was telling you Also, read Grbl v1.1 Configuration · gnea/grbl Wiki
From the Workbee webpage: The standard is that the machine homes in the back to move the cutter and gantry out of the way so you can load the machine. You then move it to where you want your work zero to be located and enter this as your XYZ zero. That can be anywhere you want within your cutting area. So, if you are in front of your machine and are telling your machine to go 100 mm in the Y positive direction but it is coming towards you, it is either wired wrong, or you need to change your grbl settings. The same wth the X. If you tell it to go 100 mm in the X positive direction, but it goes left. It is going the wrong direction. The Z should go up when you give it a positive command. You can correct the directions in the gbl settings rather than rewiring the plug.
Thank you so much as I finally followed all the steps you gave me and it is working properly. I was using the Duet 2 where the x and y move in the plus away from home. I now have another issue with the probe. I used the probe in the lower left corner of the piece and it probed everything correctly with the light flashing on each touch. I then set the the zero xyz. I loaded my piece and ran the job but the bit started what appeared to be the thickness of the touch plate above the material. Is the there a way to correct that?
Operator error. Probe sets Zero. You went it set again. Don't do that. The probe already did. See docs:xyzprobe:assemblyvideo [OpenBuilds Documentation] - software demonstration from around the 2minute mark. Note only probing. No SetZero. SetZero is for manual zeroing use without a Probe as shown here: docs:blackbox:hello-world [OpenBuilds Documentation]
I am having problems with my xyz probe plus. When I probe, it does the xyz perferct but when it goes to determine the bit size it freezes up after the first touch and the green light stays on but the bit won't move. I remove the magnet and try to Z+ but everything locks up and I can't move anything as the Unlock light flashes and won't let me turn it off. I have tried turning everything off and restarting everything but that didn't work either. Please let me know how to correct this. Thanks
What size of endmill are you probing? Are you using OpenBuildsCONTROL? What version of CONTROL are you using? Are you sure you wired the Probe correctly? What kind of spindle are you using? Grbl going into alarm mode would throw up an ALARM window - screenshot (Lock indicates Grbl is alarm mode)
