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Messages - BR549

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21
General Mach Discussion / Re: Probing accuracy measurements
« on: March 16, 2021, 09:17:36 AM »
Well according to ART long ago when we were testing the G31 for just what you are testing now it records then stops. The speed does not affect accuracy it just causes a different value . I remember spending a solid week trying to prove Art wrong but did not. I remember that because Mach3 crashed a VERY expensive highly accurate probe that week.  It was an $1800 repair to fix it. The price for playing on the bleeding edge at that time.

Just a thought, (;-) TP

22
General Mach Discussion / Re: Probing accuracy measurements
« on: March 15, 2021, 12:22:54 PM »
I think you have the explanation wrong. In mach3 after the probe trips it first records the position THEN slows to a stop. But the variable is always the feedspeed. And that is not saying any speed is more or less accurate it is just a different value. That is why you should pick a speed and then set your calibration to that speed. also the axis acceleration comes into play. Not in the way you think. IF the accel is too slow or the distance from the start and trip is too small the axis will not be up to the programed speed for probing. Also note that these varibles are extremely small (;-) most time not worth mentioning.

Just a thought, (;-) TP

23
G-Code, CAD, and CAM discussions / Re: Please help! i'm new to this
« on: February 06, 2021, 07:02:54 PM »
It apears to homing in the wrong direction for a plasma cutter . It is looking for teh top of material but going up instead of down.

(;-) TP

24
Try using the G73 drill cycle instead of the G83 to see if the problem goes away.

(;-) TP

25
General Mach Discussion / Re: Jog keys stopped working, or so I thought,
« on: December 22, 2020, 08:28:04 PM »
Most time you cannot SEE a corrupt XML file. Reload teh file from an OLD backup. Not from teh onboard backup files. You do have a backup right ?? OR rebuild your setup from scratch.

Just a thought , (;-) TP

26
General Mach Discussion / Re: Machine Coords not zeroing...
« on: December 18, 2020, 11:18:10 AM »
Yes teh video is lying to you. There is something about the machine shown that you are not aware of.  It has encoders linked to the table. Do you have table position encoders ??? Bet not.

NOW Zhome has nothing to do with Work zero.  Also you are setting yourself up for some aggrevation by setting up your machine to run Z backwards to what is normal . Having teh machine to home at the bottom has nothing to do with driving the bit into the table that can still happen no matter where Zhome is.

Just from 50 years of experience Z home is best setup at teh top of stroke in Z (top). That is as high as you can make Z move. Also known as safeZ as you can not make teh tool go any higher for clearance purposes. Also note that the tool tip position is also dependant on how LONG the tool is. To call that into play simply program G53 X0 and teh spindle will go to SafeZ (Zhome).

But it is YOUR machine set it up as you please (;-) But please do not complain when things go south for you.

(;-) TP


27
General Mach Discussion / Re: Machine Coords not zeroing...
« on: December 18, 2020, 10:14:28 AM »
Sport you are NOT listening. We have already told you that you cannot reset teh Machine Zero manually in Mach3 or for that matter most other controllers as well.

Second YES you are correct you have to select a unique file name if you are going to post a file to this site. Most simply add their name to the filename "Test_File_Jackson.jpg" for example.

Just because you THINK your controller is fully compatible with Mach3 does not make it so. FEW  fareast controllers are fully compatible with Mach3. Yes they lied to you.

Your problem sounds like a switch bounce problem. You probably could solve the issue by adding some debounce to the input side. THAT IS IF your controller allows one to debounce the inputs.

(;-) TP


28
General Mach Discussion / Re: Machine Coords not zeroing...
« on: December 17, 2020, 10:36:34 AM »
No you should not be able to manually zero teh machine coords.  As to the refhome Z not working I would assume there is something wrong with your setup OR your switches. Perhaps you are homing to fast and are blowing through teh switch. As to which direction it homes I beleive is settable in teh config side.

It could be a switch bounce problem and may need a capacitor to smooth out the signal or perhaps you need to add a bit of bebounce to the input. IF it is switch bounce the first bounce willl set the home trip but the scond bounce will trip it as a limit and stop the machine.

MANY MANY people use this process every day without problems so perhaps you need to get to teh root of teh problem and not try to circumvent the function.

Just a thought, (;-) TP

29
General Mach Discussion / Re: Machine Coords not zeroing...
« on: December 16, 2020, 10:26:50 PM »
Once the Machine corrds are set via Refhome the axis then they are not changable by the user. You do not machine from machine coords. You machine from Work Coords.  Work coords you can change Zero anytime you chose to do so. .

So why are you trying to change teh machine coord base ??

Just a thought , (;-) TP

30
Try splitting the M5M30 into 2 lines

M5
M30

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