I've seen pics of a couple of Bridgeport style CNC mills where the Z axis is a
slide inserted between the head and the turret so the entire head moves up and
down. That can have greater travel than moving the quill and the head retains
all its manual functions.
Mod operation is a counter with reset on TOP value - simple, no
processor needed. I did those things with logic elements, making
circuits for some constant TOP value.
Isn't it possible to make lookups in hardware? Demultiplexer connected
to table storage? How many selecting bits do we need - 3
No, I didn't yet. I will do when I will have time and report the results.
2013.07.11 07:31, Peter C. Wallace rašė:
BTW, did you try the latest BLDC version in master? It should make a big
improvement by halving the peak error in the commutation angle
Am 11.07.2013 um 05:40 schrieb Troy Jacobson t...@thismuch.net:
The machinekit image does not flash the LEDs to show activity. Numbers 3
and 5 are on constantly for that image. That's a mistake I made...
sorry, I should have noted that
In the current (-bone20) xenomai kernel the led_gpio
On 10 Jul 2013, at 19:59, Bruce Layne wrote:
Forums require users to visit them and participate. An email list
arrives in my inbox. That's both an advantage and a disadvantage. It
keeps the topics in front of me on a daily basis and keeps me involved
but it does clutter my inbox.
On Wed, Jul 10, 2013 at 4:13 PM, Shannon Watson swat...@mpm1.com wrote:
I can just reply and it knows what i am replying to? On a forum I know
what i am replying to.
Thanks,
Shannon Watson
swat...@mpm1.com
Phone: (316) 945-1227
MPM Inc.
2100 S West Street
Wichita, KS 67213
You replied
Greetings!
Are there some fellows who have plut-p boards
and would sell it for a good price?
I'm in search of some.
My location is in europe.
Thanks and regards,
Matsche
--
In der Wissenschaft siegt nie eine neue Theorie,
nur ihre Gegner sterben nach und nach
Max Planck
I suspect thread takes 430uS time only on LinuxCNC startup. I should
re-check this.
2013.07.10 16:54, Anders Wallin rašė:
pushing the servo thread time down to 230us while you sometimes get delays
that cause it to be 430us does not seem right.
Mark Wendt wrote:
On Wed, Jul 10, 2013 at 4:13 PM, Shannon Watson swat...@mpm1.com wrote:
I can just reply and it knows what i am replying to? On a forum I know
what i am replying to.
I will not wind up the 'top post' flamewars, but any decent email client will
thread replies properly ...
Sweet - I've never seen one. Do you have a picture?
On Jul 11, 2013 1:25 AM, Gregg Eshelman g_ala...@yahoo.com wrote:
I've seen pics of a couple of Bridgeport style CNC mills where the Z axis
is a slide inserted between the head and the turret so the entire head
moves up and down. That can
On 7/11/2013 2:58 AM, Michael Haberler wrote:
Am 11.07.2013 um 05:40 schrieb Troy Jacobson t...@thismuch.net:
The machinekit image does not flash the LEDs to show activity.
Numbers 3 and 5 are on constantly for that image. That's a mistake
I made...
sorry, I should have noted that
We've had this discussion before. Different people prefer to get their
information in different ways. That is why we have both email lists
and a forum.
This topic is a lot like religion or politics - you can have a lot of talk,
but in the end, everybody is likely to stick with what they
As far as i know, the Pluto boards are no longer being made, and never worked
that well to start with.
Look at the Mesa 7i43 for a modern replacent.
W. Martinjak mats...@play-pla.net wrote:
Greetings!
Are there some fellows who have plut-p boards
and would sell it for a good price?
I'm in
Thank you for your replies. Mail list, Fourm, IRC all forms of communication
but in different ways that don't interact with each other.
Thanks,
Shannon Watson
swat...@mpm1.com
Phone: (316) 945-1227
MPM Inc.
2100 S West Street
Wichita, KS 67213
On 7/11/2013 9:00 AM, John Kasunich wrote:
We've had this discussion before. Different people prefer to get their
information in different ways. That is why we have both email lists
and a forum.
This topic is a lot like religion or politics - you can have a lot of talk,
but in the end,
Depending on the forum software being used it may be possible to
integrate the mailing list and forum. The SheetCam forum is set up like
this so any posts made on the mailing list also appear on the forum and
vice-versa. It isn't perfect and can occasionally be confusing but it
does mostly
On 2013-07-11 15:21, Sebastian Kuzminsky wrote:
As far as i know, the Pluto boards are no longer being made, and never worked
that well to start with.
Look at the Mesa 7i43 for a modern replacent.
Yes, and due to this circumstance there should a couple of them lying about and
let's hope
On 7/11/13 06:41 , Charles Steinkuehler wrote:
I'll try this out in a day or two when I'm back home. I have had
several people think the system was broken because the LEDs were not
blinking...I'm guessing not very many people monitor the serial console
of their BeagleBone. :-/
I think
On 7/11/2013 11:06 AM, Sebastian Kuzminsky wrote:
On 7/11/13 06:41 , Charles Steinkuehler wrote:
I'll try this out in a day or two when I'm back home. I have had
several people think the system was broken because the LEDs were not
blinking...I'm guessing not very many people monitor the
On Thu, 2013-07-11 at 11:17 -0500, Charles Steinkuehler wrote:
On 7/11/2013 11:06 AM, Sebastian Kuzminsky wrote:
On 7/11/13 06:41 , Charles Steinkuehler wrote:
I'll try this out in a day or two when I'm back home. I have had
several people think the system was broken because the LEDs were
Seems to run nice at 40ipm
http://electronicsam.com/images/emco/EMCOThreading.JPG
video soon...
On 7/9/2013 11:34 AM, sam sokolik wrote:
ok - some cool news I think. So - with the switch on the interface
board set to off (non step/dir mode) the control signals are 4 phase
drive. (seems
Anything that ends up in HAL can be tweaked live (without restarting
LinuxCNC). This includes PID gains, stepgen timing, etc. I use
halcmd -kf in a terminal to do this.
I'll try this. Thanks
2. A higher servo thread rate than 1 KHz may be required to close the
velocity portion (D term)
On 11 July 2013 21:58, Marshland Engineering marshl...@marshland.co.nz wrote:
The only way we could get any stability was with the drives in Current mode
and Tacho feedback. Nothing else was stable.
Was this with a bare motor, or with the motor mounted in the machine?
--
atp
If you can't fix
quick threading video.. (yes - not the correct cutter - and the exit
move is a bit shallow.. but shows the spindle sync is right on...)
https://www.youtube.com/watch?v=ERMizV-yy8U
sam
On 07/11/2013 02:56 PM, sam sokolik wrote:
Seems to run nice at 40ipm
On 7/11/2013 10:00 PM, Jon Elson wrote:
Marshland Engineering wrote:
The only way we could get any stability was with the drives in Current mode
and Tacho feedback. Nothing else was stable.
This is contradictory. Current mode does not use tach feedback. if you
have the tach
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