Setting up Mesa 7i76e - issues
14 Sep 2020 08:33 - 14 Sep 2020 08:33 #182060
by Jocman
Setting up Mesa 7i76e - issues was created by Jocman
Hi all.
Eventually, it seems I got my new setup working.
Or at least, the homing procedure does well.
Now I' going on with other issues.
The next big issue is my Z-touch probe.
I wired the probe to +24V and to input07; same as for the limit/home switch, the only difference I set up the probe in config.hal
The Z-touch procedure run a gcode file (100.ngc)
Basically, it seems to work, but I have some issues I can't fix (my ignorance):
- I adapted (or better, i tried to) the old hal settings based on my old board (china parport) to the new 7i76e; I mean, for sure I messed something (or all....)
- anyway, by running the code, the axis run slow to touch the plate, but the plate need to be touched for 1 full second, before the system detects the touch, the motor stops and backs and the new 0 is set. But in that second the axis keep going down; and this isn't good.
I'm pretty sure it depends on the debounce setting (and I'm sure I did it in the wrong/worst way), but honestly I don't know how to fix it.
Any help?
Thankyou
Andrea
Eventually, it seems I got my new setup working.
Or at least, the homing procedure does well.
Now I' going on with other issues.
The next big issue is my Z-touch probe.
I wired the probe to +24V and to input07; same as for the limit/home switch, the only difference I set up the probe in config.hal
The Z-touch procedure run a gcode file (100.ngc)
Basically, it seems to work, but I have some issues I can't fix (my ignorance):
- I adapted (or better, i tried to) the old hal settings based on my old board (china parport) to the new 7i76e; I mean, for sure I messed something (or all....)
- anyway, by running the code, the axis run slow to touch the plate, but the plate need to be touched for 1 full second, before the system detects the touch, the motor stops and backs and the new 0 is set. But in that second the axis keep going down; and this isn't good.
I'm pretty sure it depends on the debounce setting (and I'm sure I did it in the wrong/worst way), but honestly I don't know how to fix it.
Any help?
Thankyou
Andrea
Last edit: 14 Sep 2020 08:33 by Jocman.
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14 Sep 2020 14:00 #182083
by PCW
Replied by PCW on topic Setting up Mesa 7i76e - issues
in custom.hal:
setp debounce.0.delay 300
Sets the debounce delay to 300 servo periods = 0.3 seconds
I would expect that this should be 5 or less
setp debounce.0.delay 300
Sets the debounce delay to 300 servo periods = 0.3 seconds
I would expect that this should be 5 or less
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14 Sep 2020 16:28 #182103
by Jocman
Replied by Jocman on topic Setting up Mesa 7i76e - issues
I tried with both settings (100 & 300),but i didn't see differences.
Btw,i made some test by marking an old broken bit and marking the different height between start and stop probing
Both settings,the bit travels about 0.3 mm before the detecting of the touch.
This could be unhealty for some kind of tiny bits (such v-bit 0.1 or similar)....
Btw,i made some test by marking an old broken bit and marking the different height between start and stop probing
Both settings,the bit travels about 0.3 mm before the detecting of the touch.
This could be unhealty for some kind of tiny bits (such v-bit 0.1 or similar)....
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14 Sep 2020 16:32 #182104
by PCW
Replied by PCW on topic Setting up Mesa 7i76e - issues
Umm 100ms is still _WAY_ too long
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15 Sep 2020 06:25 #182187
by Jocman
Replied by Jocman on topic Setting up Mesa 7i76e - issues
well, I can try with higher values?
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15 Sep 2020 08:34 #182192
by Aciera
I think PCW thought you should try with smaller values. That's why he suggested 5.
Replied by Aciera on topic Setting up Mesa 7i76e - issues
I would expect that this should be 5 or less
I think PCW thought you should try with smaller values. That's why he suggested 5.
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15 Sep 2020 12:10 #182220
by andypugh
Replied by andypugh on topic Setting up Mesa 7i76e - issues
The issue might be that the debounce has moved from a fast thread (where 300 cycles is maybe 6mS or less) to a slow (1mS) thread where 300 cycles is 300mS.
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16 Sep 2020 06:32 #182382
by Jocman
Replied by Jocman on topic Setting up Mesa 7i76e - issues
All of you are right, my fault.
I was thinking I put 100 in my custom.hal, but 300.
I'll reduce the value to lower ones and see if it goes better (it will, I know.....)
I was thinking I put 100 in my custom.hal, but 300.
I'll reduce the value to lower ones and see if it goes better (it will, I know.....)
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18 Sep 2020 16:24 #182660
by Jocman
Replied by Jocman on topic Setting up Mesa 7i76e - issues
I made some test,up to 10ms, and it works really fine now.
Now the z-touch and x-y-touch plates work both great.
Thanks all for theyr support.
Andrea
Now the z-touch and x-y-touch plates work both great.
Thanks all for theyr support.
Andrea
The following user(s) said Thank You: rodw
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