On Thursday 18 April 2019 15:29:35 Roland Jollivet wrote:
> > > Ditto if using an R8 directly, the R8 gets tightened with a 20
> > > volt
> > >
> > > electric impact wrench driving an 8 point 10mm socket a lot
> > > tighter than I can draw it by hand with the supplied toy 10mm
> > > endwrench.
> > Ditto if using an R8 directly, the R8 gets tightened with a 20 volt
> > electric impact wrench driving an 8 point 10mm socket a lot tighter
> > than I can draw it by hand with the supplied toy 10mm endwrench. If
> > not, the TTS in the R8 may slip and walk out. The life of that
> > socket bef
Forwarded Message
Subject: Re: [Emc-users] Something to think about re the hack-a-day
tool changer
Date: Thu, 18 Apr 2019 23:22:19 +0700
From: TJoseph Powderly
To: Gene Heskett
Hi Gene
On 04/18/2019 10:57 PM, Gene Heskett wrote:
On Thursday 18 April 2019 11
I use fairly universally on the G0704.
> > -Original Message-
> > From: Gene Heskett [mailto:ghesk...@shentel.net]
> > Sent: Thursday, April 18, 2019 11:45 AM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] Something to think about re the hack-a-d
orge.net
> > Subject: Re: [Emc-users] Something to think about re the hack-a-day tool
> > changer
> >
> > On Thursday 18 April 2019 07:47:51 andy pugh wrote:
> >
> > > On Thu, 18 Apr 2019 at 10:22, Roland Jollivet
> > wrote:
> > > > To recap;
Google is your friend!
ft-lb =Nm * 0.73756
So 75Nm = 55.3 ft lbs
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: Thursday, April 18, 2019 11:45 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Something to think about re
On Thursday 18 April 2019 07:47:51 andy pugh wrote:
> On Thu, 18 Apr 2019 at 10:22, Roland Jollivet
wrote:
> > To recap; small steppers 'drive' the carousel around to tighten the
> > motor.
>
> No, the motor drives round the carousel to tighten the collet.
>
> It is really rather clever. Assumin
On Thursday 18 April 2019 05:30:13 TJoseph Powderly wrote:
> Hi Roland
>
> On Thu, Apr 18, 2019, 3:23 PM Roland Jollivet
>
>
> wrote:
> > On Thu, 18 Apr 2019 at 01:22, Gene Heskett
wrote:
> > > On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
> > >
> > > [...]
> > >
> > > > But if may
auto tool changes.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone: (330)828-2105ext. 2031
>
> -Original Message-
> From: Roland Jollivet
> Sent: Thursday, April 18, 2019 8:04 AM
> To: Enhanced Machine Controller (EMC)
auto tool changes.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone: (330)828-2105ext. 2031
>
> -Original Message-
> From: Roland Jollivet
> Sent: Thursday, April 18, 2019 8:04 AM
> To: Enhanced Machine Controller (EMC)
)
Subject: [Emc-users] Something to think about re the hack-a-day tool changer
Sorry, guys, I really do understand how it works. I thought I was quite clear..
That's why I said the l steppers 'drive' the carousel around. Notice the '
'. Yes, to spell it out the motio
> On 18 Apr 2019, at 14:04, Roland Jollivet wrote:
>
> - disable the stepper drives so the gantry becomes passive and is pulled
> around instead
That’s even worse than the risk of losing steps by driving the carousel with
the axes.
___
Emc-users m
Sorry, guys, I really do understand how it works. I thought I was quite
clear..
That's why I said the l steppers 'drive' the carousel around. Notice the '
'. Yes, to spell it out the motion of the X-Y steppers in a circular
motion results in the carousel rotating. The carousel rotates as a res
On Thursday 18 April 2019 04:20:37 Roland Jollivet wrote:
> On Thu, 18 Apr 2019 at 01:22, Gene Heskett
wrote:
> > On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
> >
> > [...]
> >
> > > But if maybe you lock the spindle and turn the nut.
> >
> > This is the case, except you are turnbi
On Thu, 18 Apr 2019 at 10:22, Roland Jollivet wrote:
> To recap; small steppers 'drive' the carousel around to tighten the motor.
No, the motor drives round the carousel to tighten the collet.
It is really rather clever. Assuming that it can't work based purely
on guess-work seems silly.
I sug
Hi Roland
On Thu, Apr 18, 2019, 3:23 PM Roland Jollivet
wrote:
> On Thu, 18 Apr 2019 at 01:22, Gene Heskett wrote:
>
> > On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
> >
> > [...]
> > >
> > > But if maybe you lock the spindle and turn the nut.
> >
> > This is the case, except you
On Thu, 18 Apr 2019 at 01:22, Gene Heskett wrote:
> On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
>
> [...]
> >
> > But if maybe you lock the spindle and turn the nut.
>
> This is the case, except you are turnbing the nut by using the xy
> steppers to drive the carousel which is turn
On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
[...]
>
> But if maybe you lock the spindle and turn the nut.
This is the case, except you are turnbing the nut by using the xy
steppers to drive the carousel which is turning the nut.
> Then your spindle
> lock needs to have a torque
t: Wednesday, April 17, 2019 10:01 AM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] Something to think about re the hack-a-day
> > tool changer
> >
> > On Wednesday 17 April 2019 07:12:53 andy pugh wrote:
> > > On Wed, 17 Apr 2019 at 06:57
5.pdf
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: Wednesday, April 17, 2019 10:01 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Something to think about re the hack-a-day tool
> changer
>
> On Wednesday 17 April
I thought the nut that needed to be torqued down was on the spindle. You
would not be using a stepper for the spindle motor.
So the "wrench" holds the nut and then you power up the spindle to tighten
the nut. If that is the case then spindle motor current
tells you the torque on the nut.
But i
On Wednesday 17 April 2019 07:12:53 andy pugh wrote:
> On Wed, 17 Apr 2019 at 06:57, Gene Heskett
wrote:
> > Some more along the lines of finding out how much force I can figure
> > on as being available to tighten or loosen the collet nut. I can
> > get, for under a tenner, 4 ea 50Kg load cells
On Wed, 17 Apr 2019 at 06:57, Gene Heskett wrote:
> Some more along the lines of finding out how much force I can figure on
> as being available to tighten or loosen the collet nut. I can get, for
> under a tenner, 4 ea 50Kg load cells and a processor board that converts
> the very low level diff
On Wednesday 17 April 2019 01:48:06 Chris Albertson wrote:
> I think you could eliminate the load cell and simply measure motor
> current. Given that the motor is locked at zero RPM, the torque would
> be a function of current. Once you calibrate current to torque it
> will not change. You sti
I think you could eliminate the load cell and simply measure motor
current. Given that the motor is locked at zero RPM, the torque would be a
function of current. Once you calibrate current to torque it will not
change. You still need to get this data into a computer but at least you
don't need
On Tuesday 16 April 2019 14:34:15 Gene Heskett wrote:
> Greetings all;
>
> While adding a couple timedelays and a couple or2's to my hal file,
> basically to prove that I can pulse the spindle for the nominally 200
> msecs used to spin the nut on/off to release the collet and supposedly
> drop the
Greetings all;
While adding a couple timedelays and a couple or2's to my hal file,
basically to prove that I can pulse the spindle for the nominally 200
msecs used to spin the nut on/off to release the collet and supposedly
drop the tool, or just drop it all, I came up against a designed in
pr
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