Ok, found something interesting. I left the isolcpus=1 in grub and
re-enabled hyper-threading and latency topped out around 11.2us with
acceptable performance. I thought it should be fixed so ran EMC2 and
after a few hours the error tripped again. Here is the details from
dmesg:
[16870.928322]
Kirk Wallace wrote:
> If you say you can hold and operate your pendant in one hand, I'll have
> to reconsider my opinion.
>
I have a button that has to be pressed for the MPG to move the machine.
I think this is important, as I sometimes
bump the dial by accident, and the thought of the machin
On Sat, 2011-03-26 at 17:38 -0500, Jon Elson wrote:
> Kirk Wallace wrote:
> > I haven't used a pendant, but I don't see myself using one single
> > handed.
> For use with an edge finder, two hands are available. What I usually do
> for Z is to
> slip a piece of paper between the cutter and the wo
Joel Jacobs wrote:
> Hi Peter,
> I think you meant to say 20% not 120% since you gave the example of
> 200ms jitter will trip the error with a 1ms servo thread.
> I had a chance to do some further testing. I ran the latency test for
> longer - a couple hours and the servo thread jitter just barely
Kirk Wallace wrote:
> I haven't used a pendant, but I don't see myself using one single
> handed.
For use with an edge finder, two hands are available. What I usually do
for Z is to
slip a piece of paper between the cutter and the work, and when the
paper gets stuck, I know that I am .003" (or w
Hi Peter,
I think you meant to say 20% not 120% since you gave the example of
200ms jitter will trip the error with a 1ms servo thread.
I had a chance to do some further testing. I ran the latency test for
longer - a couple hours and the servo thread jitter just barely
exceeded 14us which is exact
On Sat, 2011-03-26 at 14:39 -0500, Jon Elson wrote:
> Mark Wendt (Contractor) wrote:
> > On 3/26/2011 12:37 PM, Jon Elson wrote:
> >
> >> Mark Wendt (Contractor) wrote:
> >>
> >>> Geez, at either $150 or $170, somebody's mighty proud of their MPG.
> >>>
> >>>
> >>>
> >> HEDSS sells t
On Sat, 2011-03-26 at 13:30 -0400, Mark Wendt (Contractor) wrote:
>
> On 3/26/2011 12:37 PM, Jon Elson wrote:
> > Mark Wendt (Contractor) wrote:
> >> Geez, at either $150 or $170, somebody's mighty proud of their MPG.
> >>
> >>
> > HEDSS sells the basic 2" encoder for $56 on eBay in single quantit
Mark Wendt (Contractor) wrote:
> On 3/26/2011 12:37 PM, Jon Elson wrote:
>
>> Mark Wendt (Contractor) wrote:
>>
>>> Geez, at either $150 or $170, somebody's mighty proud of their MPG.
>>>
>>>
>>>
>> HEDSS sells the basic 2" encoder for $56 on eBay in single quantity. It
>> really se
>-Original Message-
>From: andy pugh [mailto:bodge...@gmail.com]
>Sent: Saturday, March 26, 2011 4:25 AM
>To: Enhanced Machine Controller (EMC)
>Subject: Re: [Emc-users] RPM with PWM/VFD/G540 to KBIC type controller.
>Not working? Help?
>
>On 26 March 2011 01:02, Michael Jones
>wrote:
>
>>
On 3/26/2011 12:37 PM, Jon Elson wrote:
> Mark Wendt (Contractor) wrote:
>> Geez, at either $150 or $170, somebody's mighty proud of their MPG.
>>
>>
> HEDSS sells the basic 2" encoder for $56 on eBay in single quantity. It
> really seems there ought
> to be cheaper ones, but maybe they just don
On 3/26/2011 7:52 AM, andy pugh wrote:
> On 26 March 2011 11:46, Mark Wendt (Contractor)
> wrote:
>
>> But if I want to move
>> precisely to position X or position Z, the MPG is my go to control.
>
> If I want to go to a specific X and Y I tend to type "G0….." in the
> MDI and hold a finger on
Mark Wendt (Contractor) wrote:
> Geez, at either $150 or $170, somebody's mighty proud of their MPG.
>
>
HEDSS sells the basic 2" encoder for $56 on eBay in single quantity. It
really seems there ought
to be cheaper ones, but maybe they just don't make enough of them. This
has 100 tick marks
2011/3/26 Chris Radek :
> On Sat, Mar 26, 2011 at 02:31:47PM +0200, Viesturs L??cis wrote:
>>
>> At least for me it worked correctly in the same way as You said -
>> compensation is applied during the first move, regardless, if that is
>> G01 or G02/G03. For best results, please test it and report
On Sat, Mar 26, 2011 at 02:31:47PM +0200, Viesturs L??cis wrote:
>
> At least for me it worked correctly in the same way as You said -
> compensation is applied during the first move, regardless, if that is
> G01 or G02/G03. For best results, please test it and report here :)
Yes, EMC supports an
2011/3/26 Les Newell :
>
> SheetCam will generate excellent tool center line paths. It handles nesting
> of parts within each other correctly and automatically works out which side
> to compensate. As I have a number of customers complaining due to the lack
> of G41/G42 support I decided I had bett
On 26 March 2011 11:46, Mark Wendt (Contractor) wrote:
> But if I want to move
> precisely to position X or position Z, the MPG is my go to control.
If I want to go to a specific X and Y I tend to type "G0….." in the
MDI and hold a finger on the ESC button.
--
atp
"Torque wrenches are for the
On 3/25/2011 6:26 PM, Igor Chudov wrote:
> I am wondering about something.
>
> For manual movement, I use a Saitek P880 joypad. I am literally overjoyed by
> this joypad and how easily it moves the axes.
>
> Having said this bad pun, I wonder if those manual pulse generators are
> better, ergonomic
On 26 March 2011 10:27, Anders Wallin wrote:
> If you can make an alternative one with a 'hi-fi' look (smooth wheel,
> no detents(?)), with maybe a push-down functionality (the whole wheel
> is a momentary-on push-button) then it might be interesting for a lot
> more DIYers than just us CNCers.
On 3/25/2011 1:13 PM, Roland Jollivet wrote:
> Hi Colin
>
> The dials are normally graduated, and a spin of however much should move the
> machine exactly that amount. Unless it's being used in a velocity mode,
> where turning the wheel means move continuously, and stop means stop. (also
> a debate
On 26 March 2011 01:02, Michael Jones wrote:
> loadrt pwmgen output_type=0
> addf pwmgen.make-pulses base-thread
> addf pwmgen.update servo-thread
> net spindle-on <= motion.spindle-on
> net spindle-speed-cmd motion.spindle-speed-out => pwmgen.0.value
> net spindle-on motion.spindle-on => pwmgen.
> in my shop we have used small offsets in EMC2 for a long time
> we have had no issues of resulting incorrect geometry from entry or exit
> motion
If you look at the docs on radius comp you will see that if you don't
have a lead in, the first move will become the lead in. The start of the
move
> Thanks for all the replies. I'll go with convention then; a rotating knob on
> the wheel.
> Throwing the hat over the fence; I'll post back on this within two months on
> where I've got to. (too many projects..)
If you can make an alternative one with a 'hi-fi' look (smooth wheel,
no detents(?))
Thanks for all the replies. I'll go with convention then; a rotating knob on
the wheel.
Throwing the hat over the fence; I'll post back on this within two months on
where I've got to. (too many projects..)
Regards
Roland
On 26 March 2011 04:18, Jon Elson wrote:
> Igor Chudov wrote:
> > I am w
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