Andrew,
A tripod would not work at all for milling since it is not constrained
rotationally. It would just flop around. In fact, the robo-crane was not
too stable either. Adding more weight to the platform would help. It could
mill styrofoam and had a hard time with wood. However, a real hexapo
Stephen Wille Padnos wrote:
> Dean Hedin wrote:
>
>
>>I am surprized that Mach under Windows could out perform EMC in steps/sec
>>since EMC is built on a realtime kernel.
>>
>>I presume it is therefore that it is the "quality of steps" that EMC is
>>better at? In otherowrds EMC produces more a
sam sokolik wrote:
> really - I was in on a converstion with art at the cncworkshop - he had said
> he thought mach would probably never do rigid tapping.
>
> Could you explain? I could see if you had the spindle setup as a rotory
> axis... but other than that I have no clue. Maybe some exter
I guess the direction (right turn clyde) of this thread in combination
with the 20k that was suggested on the web site leads me to jump in. I
tested a Semperon pc recently to see how many pulses I could get to. It
was able to get to a bit more than 70k.
I ran a motor with it. The drive was a
On Tue, Oct 02, 2007 at 02:20:26PM -0500, Sam Sokolik wrote:
> the only other thing I can think of is that the max step/sec is a bit on the
> low side. But I don't know a good safe step rate to put on paper. (~20k/s
> w/Parport) - expecially because 2.2 will have doublefreq which will increase
Dean Hedin wrote:
>I am surprized that Mach under Windows could out perform EMC in steps/sec
>since EMC is built on a realtime kernel.
>
>I presume it is therefore that it is the "quality of steps" that EMC is
>better at? In otherowrds EMC produces more accurate and precise steps.
>
>
I haven
Hi Dean,
I don't know why you are surprised. My understanding is that the Mach
pulse generation engine sits under Windows, getting the timing interrupt
very early, before windows has a change to waste it.
I see no reason why it would not be as good. That said I haven't compared
the two.
At the m
I am surprized that Mach under Windows could out perform EMC in steps/sec
since EMC is built on a realtime kernel.
I presume it is therefore that it is the "quality of steps" that EMC is
better at? In otherowrds EMC produces more accurate and precise steps.
- Original Message -
From:
really - I was in on a converstion with art at the cncworkshop - he had said
he thought mach would probably never do rigid tapping.
Could you explain? I could see if you had the spindle setup as a rotory
axis... but other than that I have no clue. Maybe some external hardware -
doing it outs
On Tue, 2 Oct 2007 14:27:49 -0500, you wrote:
>oh - and maybe a rigid tapping column.. The threading lathe/mill is a bit
>odd.. Mach does not do rigid tapping which I would concider the mill
>threading (it has yes/yes in that column).
Mach will do rigid tapping..
Steve Blackmore
--
---
Dear Kirk and all:
Thank you for supplying me with relevant information. I think that Alex
Joni's toy would give me needed information
to implement a step in the right direction. I wonder if a tripod made more
robust could do milling and routing.
Best regards,
Andrew
- Original Message -
Hello Andrew,
I just looked at the NIST site. The Robocrane is quite a complex
project. I suspect that EMC should be able to serve as the foundation
for your project since you can plug in your own kinematics and EMC is
highly configurable hardware interface wise. I suspect the Robocrane is
a step
oh - and maybe a rigid tapping column.. The threading lathe/mill is a bit
odd.. Mach does not do rigid tapping which I would concider the mill
threading (it has yes/yes in that column).
- Original Message -
From: "Sam Sokolik" <[EMAIL PROTECTED]>
To: "Enhanced Machine Controller (EM
the only other thing I can think of is that the max step/sec is a bit on the
low side. But I don't know a good safe step rate to put on paper. (~20k/s
w/Parport) - expecially because 2.2 will have doublefreq which will increase
the step rate a bit more.
sam
- Original Message -
From:
Updated here:
http://www.wallacecompany.com/cnc_lathe/control_table-kw1a.htm
Kirk Wallace
~~
On Tue, 2007-10-02 at 13:36 -0400, Stephen Wille Padnos wrote:
> Cool.
>
> A few changes though:
>
> Name: EMC2
> Additional Hardware: optio
Hello Jerry,
I am fairly active on the users mailing list and finishing up my first
CNC conversion. I have no authority to represent EMC, so you may want to
hold off on the updates until you get an okay from someone on the EMC
board. Thank you for creating your website. I appreciate your freely
av
Cool.
A few changes though:
Name: EMC2
Additional Hardware: optional
Max Axes: 9 (XYZ linear, ABC angular, UVW linear)
stepper/servo: both, simultaneously
Number of G-codes: 63 (I looked at interp_internal.hh to see that)
Limit Switches: well, this is an interesting one. you get 3 inputs p
I put a first pass edit of this table here:
http://www.wallacecompany.com/cnc_lathe/control_table-kw1.htm
Kirk Wallace
~~
On Tue, 2007-10-02 at 08:31 -0700, Kirk Wallace wrote:
> The information on this website:
>
> http://desktopcnc.com/co
The information on this website:
http://desktopcnc.com/control_table.htm
seems to be out of date. I don't feel fully qualified to update this
information, so I wonder if someone would be interested in pursuing it.
If not, I can take a stab at it, but I can't guarantee accuracy
(+/- .010" maybe).
I'm hooking up the encoder to parport circuit right now, decided to take a
break from that and check the email. the mill is going to be set even
farther back, until i can get my car fixed. i wrecked it tonight, a deer
jumped out and between the brakes and swerving, i lost it. so if anyone has
an
--- Jim Coleman <[EMAIL PROTECTED]> wrote:
snip
> I'd like to get the
> tool changer
> fixed, one of the problems with the machine, the Y axis either
> encoder or
> amp malfunctioned, and ran the spindle into the tool changer arm
> and bent it
> up. and I need to figure out if its the encoder o
21 matches
Mail list logo
