My UCCNC Probe Screen version 4 is available now

[Cube3]

Hi,
I am having some trouble with probing. I installed today everything looks fine after install instructions.
Do you have any information on the correct start position and axis travel sequence?

If I do an X plus probe. The probe travels with an X positive move (fast probe speed), stops, then fast probe for maybe further 2 millimetres then I think resets X DRO and then a slow move going negative. Fast move to positive 6mm

The z probe works fine.

Plate thk =0
Probe dia =2
Probing size =50
Fixture clear =5
Fast probing =150
Fine probing =50
Probing depth =-3

Controller AXBB, UCCNC 1.2113
Any help appreciated
Regards Simon

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[A_Camera]

Hi,
I am having some trouble with probing. I installed today everything looks fine after install instructions.
Do you have any information on the correct start position and axis travel sequence?

If I do an X plus probe. The probe travels with an X positive move (fast probe speed), stops, then fast probe for maybe further 2 millimetres then I think resets X DRO and then a slow move going negative. Fast move to positive 6mm

The z probe works fine.

Plate thk =0
Probe dia =2
Probing size =50
Fixture clear =5
Fast probing =150
Fine probing =50
Probing depth =-3

Controller AXBB, UCCNC 1.2113
Any help appreciated
Regards Simon

Hi,

I am sorry, I can't test it with AXBB since I only have the UC300ETH, but I know people who are using it, so it works. Please list all your parameters and I can test it with my machine. For example, the X + probing uses Plate thickness, Probe diameter, Probing size, X and Y retract, Fast probing and the Fine probing parameters. I think that each parameter is clearly explained in the manual, but if something is unclear, I'll explain in different words if I can. Regarding the general principle, what should happen in your X plus probing case is the following.

When you push the X+ button the movement starts in X positive direction at Fast probing speed. When the tip touches the probed surface, it will retract using G0 command at your machines maximum speed to 5% of the the X Y retract position. This means that if your X Y retract is not set properly then the movement may not be enough for proper second probing. Even using too high Fast probing value may cause problems because your machine may not stop in time and may overshoot too much. Decrease the Fast probing speed, it may help. After the first probing and that reverse movement, the probe will slowly move again towards the X positive direction. The speed of that move is the same as given by the Fine probing value. Once that is done, the probe will retract to X and Y retract position. The movements you describe is not something I recognize and don't know what's causing it. Fast probing is done once, and after that one fine probing, unless Fine probing is set to zero, in which case probing is done only once at the Fast probing speed.

The default values are set for a rigid probing using a simple plate. Normally that works, but it is important that the parameters are tested, understood and configured properly, otherwise your tip may be broken, or driven into the material, or cause other damages.

When I test, I normally test in the air just to make sure that movements are safe and are made in the direction I expect to avoid accidents. I think that it is important because an accident can be expensive, especially if you are using a fancy expensive 3D probe. In fact, I have just recently bought a 3D probe, which is not the most expensive one, but expensive enough to care about it. I am also about to make and release a video about it, so perhaps I'll add a few clips with some examples also before I publish it.

Please note that I have not tested it with the latest version of UCCNC, only with 1.2111. I will also not test it until I find need for changing version. CNC Drive have once again made a huge design change in version 1.2113 and I have no time or interest in testing that version now.