An important spec to look for in any motor is the stall torque to give
an idea of its ability to move a dead load like a machine table that
also has stiction (stationary friction) and any other load on the
table to overcome.
Note power is the product of torque and rpm
the formulas are on
http://ww
On 9/3/2013 3:24 AM, Charles Steinkuehler wrote:
> On 9/2/2013 7:14 PM, Kirk Wallace wrote:
>> On 09/02/2013 03:38 PM, Charles Steinkuehler wrote:
>>> I have a new version of the MachineKit image for running LinuxCNC on a
>>> BeagleBone available:
>>>
>>> Image:
>>> http://bb-lcnc.blogspot.com/p/ma
On Wed, 9/4/13, Jack Coats wrote:
Subject: Re: [Emc-users] Servo motor watts VS torque?
To: "Enhanced Machine Controller (EMC)"
Date: Wednesday, September 4, 2013, 8:18 PM
>From what I have been told, the
Amps is the 'power', but more volts is the
'speed' and responsiveness component.
>From what I have been told, the Amps is the 'power', but more volts is the
'speed' and responsiveness component.
Watts is Volts times Amps, and is defined as 'power'.
The 'torque' would be more the 'amps' than power, but obviously they are
related.
Does that help?
--
On 09/04/2013 06:25 PM, Gregg Eshelman wrote:
... snip
> That's why I'm concerned about the peak torque. The mill has a 10x50"
> table which is a large hunk of iron to push around and I don't want
> to end up with a real slowpoke of a machine. Ideally I'd like to have
> it performing quite a bit b
On Wed, 9/4/13, Sven Wesley wrote:
Subject: Re: [Emc-users] Servo motor watts VS torque?
To: "Enhanced Machine Controller (EMC)"
Date: Wednesday, September 4, 2013, 3:29 PM
2013/9/4 Gregg Eshelman
> ...
> This CNC parts business makes the worst of PC parts
vendors I've dealt
> with
On Wed, 9/4/13, Sven Wesley wrote:
Subject: Re: [Emc-users] Servo motor watts VS torque?
To: "Enhanced Machine Controller (EMC)"
Date: Wednesday, September 4, 2013, 3:29 PM
2013/9/4 Gregg Eshelman
> ...
> This CNC parts business makes the worst of PC parts
vendors I've dealt
> with
Hi,
I'm not sure about the newest version of MachineKit, but the one I download
about 3 weeks ago works fine on the BBB running AXIS (so far only spinning
motors, not cutting anything yet). I followed the directions for installation
here:
http://bb-lcnc.blogspot.com/p/machinekit_16.html
On 4 September 2013 19:15, Kirk Wallace wrote:
> I tried AXIS but got:
> http://www.wallacecompany.com/machine_shop/LinuxCNC/Screenshot-3.png
That's not a VNC problem, that's an X-windows redirecting problem.
Is that the BBB screen, or your PC?
--
atp
If you can't fix it, you don't own it.
ht
A simple aproach may be to change the kinematics code so that you add Z0
to the value you compute now for
Z in the direct ( world coord obtained from joint coord) model, and
substract the same Z0 to J1 J2 J3 (joint coordinates) in the inverse (joint
coordinates from world coordinates) model.
I ca
On 4 September 2013 20:36, Gregg Eshelman wrote:
> Since my "deal" on the Sanyo-Denki closed loop stepper motors and drivers is
> a bust*, I'm still hunting motors and drivers at an affordable price. (Which
> right now is as much under $1,000 as I can get.)
This guy (in South Korea) is listing
2013/9/4 Gregg Eshelman
> ...
> This CNC parts business makes the worst of PC parts vendors I've dealt
> with in 30 years look like the pinnacle of responsiveness to customers.
>
>
> Gregg, are you in EU?
I have bought a bunch of stuff from cncdrive.com. Balazs is very friendly
and service minded
Axis does run on the BBB (I use it all the time). Unless you're running a
board that conflicts with HDMI, I would recommend directly connecting a
monitor. I haven't used vnc on the BBB, but my hunch is that it is
rendering in such a way that the tight VNC version of an X display doesn't
like. I
On Wed, 9/4/13, andy pugh wrote:
Subject: Re: [Emc-users] Servo motor watts VS torque?
To: "Enhanced Machine Controller (EMC)"
Date: Wednesday, September 4, 2013, 1:57 PM
On 4 September 2013 20:36, Gregg
Eshelman
wrote:
> Since my "deal" on the Sanyo-Denki closed loop stepper
motors a
At what bit depth are you running the vnc server?
On Wed, Sep 4, 2013 at 2:33 PM, Ralph Stirling <
ralph.stirl...@wallawalla.edu> wrote:
> I was able to run Axis fine using the built-in TCP over USB. I added the
> following lines to /etc/network/interfaces on my laptop:
>
> auto eth3
> iface e
Since my "deal" on the Sanyo-Denki closed loop stepper motors and drivers is a
bust*, I'm still hunting motors and drivers at an affordable price. (Which
right now is as much under $1,000 as I can get.)
After spending hours looking, it appears that nothing under a NEMA34 size is
going to do the
I was able to run Axis fine using the built-in TCP over USB. I added the
following lines to /etc/network/interfaces on my laptop:
auto eth3
iface eth3 inet static
address 192.168.7.1
netmask 255.255.255.0
gateway 192.168.7.1
pointtopoint 192.168.7.2
plugged in the BBB to USB, an
On 9/4/2013 1:15 PM, Kirk Wallace wrote:
> On 09/04/2013 09:56 AM, Kirk Wallace wrote:
>
> ... snip
>> new one. From that point the CRC and untar was applied to the original.
>> I renamed the second download and everything is wonderful. Sorry for the
>> Red Herring.
>
> I just have power and Ethe
On 4 September 2013 14:05, Stuart Stevenson wrote:
> Oil bath bearings in the bottom of a gearbox are bathed in ALL of the wear
> particles of the gear train - not a good situation.
That's an interesting point.
I guess it is possible that the idea is that the gearbox oil washes
the bearings
On 09/04/2013 09:56 AM, Kirk Wallace wrote:
... snip
> new one. From that point the CRC and untar was applied to the original.
> I renamed the second download and everything is wonderful. Sorry for the
> Red Herring.
>
>
I just have power and Ethernet hooked up to my BBB. I installed
tightvncser
On Wed, Sep 4, 2013 at 12:57 PM, wrote:
> Re: lineardeltakins and 'World mode' problems (Viesturs L?cis)
"Are those machine or relative coordinates?
Currently it seems that Andy is right - you see relative (workpiece)
coordinates so simply do "touch off" for Z axis. Ideally for testing
purpose
On 09/02/2013 05:24 PM, Charles Steinkuehler wrote:
... snip
> My blog page with the image download should have enough to get you going
> if you have some Linux experience and can figure out the device
> representing your SD card reader:
>
> http://bb-lcnc.blogspot.com/p/machinekit_16.html
>
I tri
On Wed, Sep 4, 2013 at 10:22 AM, wrote:
> Re: lineardeltakins and 'World mode' problems (Javier Ros)
"Change tour model so it can have an offset for the joint coordinates. Then
give an arbitrary value to your offset so that z gets a value inside the
working limits."
Javier:
Thank you for the
On 9/4/2013 10:29 AM, Kirk Wallace wrote:
> On 09/02/2013 05:24 PM, Charles Steinkuehler wrote:
> ... snip
>> My blog page with the image download should have enough to get you going
>> if you have some Linux experience and can figure out the device
>> representing your SD card reader:
>>
>> http:/
On 09/04/2013 08:44 AM, Charles Steinkuehler wrote:
> On 9/4/2013 10:29 AM, Kirk Wallace wrote:
>> On 09/02/2013 05:24 PM, Charles Steinkuehler wrote:
>> ... snip
>>> My blog page with the image download should have enough to get you going
>>> if you have some Linux experience and can figure out th
On 09/04/2013 09:19 AM, Charles Steinkuehler wrote:
... snip
> Git won't really help you recover a borked download. I've added the
> latest MachineKit file to my rsync server. To fix your bad file, put it
> somewhere and cd to that directory. Make sure the file is named:
>
>debian-7.1-machi
2013/9/3 Bob Weiss
>
> After homeing the machine and switching to World mode it made X and Y 0.0
> but changed Z to -278.00 ? Not sure where it got that value from for Z?
>
Are those machine or relative coordinates?
Currently it seems that Andy is right - you see relative (workpiece)
coordinate
On 9/4/2013 11:01 AM, Kirk Wallace wrote:
> On 09/04/2013 08:44 AM, Charles Steinkuehler wrote:
>> On 9/4/2013 10:29 AM, Kirk Wallace wrote:
>>> On 09/02/2013 05:24 PM, Charles Steinkuehler wrote:
>>> ... snip
My blog page with the image download should have enough to get you going
if you
Gentlemen,
My goal would be:
A spring loaded lip seal at the bottom of the gearbox - above the spindle
bearings. Size the seal or bearing surface for approximately 1/2 the
recommended interference fit to minimize heat in the seal. If you are
turning the head over then a seal at the top would b
I found touch screen support for 10.04 would work with some and not with
others. I suspect newer OS's would work better.
I use ELO 1519L with IntelliTouch E830343 on my mill. The AccuTouch
would not work for me.
JT
On 9/4/2013 12:30 AM, Gregg Eshelman wrote:
> 9.7 inch, 1024x768 with multitouc
The Hardinge CHNC turret uses those quad rings to seal the turret and
the housing.
JT
On 9/3/2013 11:33 PM, Gregg Eshelman wrote:
> On Tue, 9/3/13, andy pugh wrote:
>
> I don't think there is room inside the bolt circle for any
> sort of lip
> seal though, and I am rather wary of Gene's i
chips worked for me.
JT
On 9/4/2013 1:53 AM, Klemen Dovrtel wrote:
> I tried all the suggested names of the mascot: Tux, Tuxcnc, Chips etc. but I
> still can not edit the Wiki pages. I get "User does not have administrative
> abilities. (Password does not match administrative password(s).)"
>
>
Change tour model so it can have an offset for the joint coordinates. Then
give an arbitrary value to your offset so that z gets a value inside the
working limits.
I think this will work. If after this you get a following error, ask again
:).
Javier
El 03/09/2013 23:09, "Charles Steinkuehler"
es
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