On 7/4/23 20:09, John Dammeyer wrote:
On 7/4/23 18:18, gene heskett wrote:
On 7/4/23 16:49, John Dammeyer wrote:
Hi Gene,
I think you are overthinking the problem. .
Lets clarify where the error is, because the turn around at the bottom
of the hole is synchronized, the turn around at the top
On 7/4/23 18:18, gene heskett wrote:
> On 7/4/23 16:49, John Dammeyer wrote:
Hi Gene,
I think you are overthinking the problem. .
> Lets clarify where the error is, because the turn around at the bottom
> of the hole is synchronized, the turn around at the top is not.
> So where is it when the e
With no look-ahead, it might work well for those who use the fourth axis as a
way to rotate the part only to expose a new side for more 3D milling. In
other words, you don’t need look ahead if you are not cutting will rotating.
But if all four axes are moving at the same time, looking ahead wo
On 7/4/23 18:18, gene heskett wrote:
On 7/4/23 16:49, John Dammeyer wrote:
The problem is under the covers somewhere and the Joint 2 following
error isn't totally accurate but is what happens later.
John
Lets clarify where the error is, because the turn around at the bottom
of the hole is sy
>
> The problem seems to be that our trajectory planner lack the ability to
> look ahead for any rotary axis. This means that a coordinated move that
> includes a rotary move will be dysfunctional at best.
I read that as - poor look ahead - not 'doesn't work'
On Tue, Jul 4, 2023 at 5:21 PM Sam S
Lol - then I guess I read too far into it.. I have run 4th axis rotary
motion just fine..
On Tue, Jul 4, 2023 at 5:15 PM andy pugh wrote:
> On Tue, 4 Jul 2023 at 22:50, Sam Sokolik wrote:
> >
> > He is not saying it doesn't work...
>
> Actually, he did say that.
>
> --
> atp
> "A motorcycle is
On 7/4/23 16:49, John Dammeyer wrote:
The problem is under the covers somewhere and the Joint 2 following error isn't
totally accurate but is what happens later.
John
That reads like the spindle stop time is overly long to me.
Actually the spindle stops so quickly that I can hear the splines
On Tue, 4 Jul 2023 at 22:50, Sam Sokolik wrote:
>
> He is not saying it doesn't work...
Actually, he did say that.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Const
He is not saying it doesn't work... He is saying the performance isn't
there..
On Tue, Jul 4, 2023, 4:14 PM gene heskett wrote:
> On 7/4/23 16:42, andrew beck wrote:
> > I would also help pay someone in a heart beat to fix the trajectory
> planner.
> >
> > Some sort of jerk control would be awe
Update!
[SPINDLE_9]
MAX_VELOCITY = 50.0
MAX_ACCELERATION = 30.0
# The values below should be 25% larger than MAX_VELOCITY and
MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 62.50
STEPGEN_MAXACCEL = 37.50
Now I can run S200 for tapping an
On 7/4/23 16:42, andrew beck wrote:
I would also help pay someone in a heart beat to fix the trajectory planner.
Some sort of jerk control would be awesome.
It doesn't need to be active in any special cases like spindle
synchronization but just if it worked for 4 axis simple motor at least
woul
> The problem is under the covers somewhere and the Joint 2 following error
> isn't totally accurate but is what happens later.
> John
>
That reads like the spindle stop time is overly long to me.
Actually the spindle stops so quickly that I can hear the splines rattle in the
pulley driver.
I would also help pay someone in a heart beat to fix the trajectory planner.
Some sort of jerk control would be awesome.
It doesn't need to be active in any special cases like spindle
synchronization but just if it worked for 4 axis simple motor at least
would be a game changer
On Wed, 5 Jul 202
The problem with transforming an STL file to a “real” CAD file is that the STL
is only an approximation of the true shape. The software would have to have
some intelligence to see that the designer intended to (say) have a curved
profile revolved around an axis to make a complex shape on a lath
"If we could get hold of the patches that introduced it to Tormach then
we could look at integrating it"
Maybe a Tormach user could help with that?
Martin
From: andy pugh
Sent: Tuesday, July 4, 2023 1:13 PM
To: EMC developers
Cc: Enhanced Machine Controller (EMC)
On Tue, 4 Jul 2023 at 18:34, Marius wrote:
> The problem seems to be that our trajectory planner lack the ability to
> look ahead for any rotary axis. This means that a coordinated move that
> includes a rotary move will be dysfunctional at best.
It's not as bad as that.
There is a 9-axis blend
On 7/4/23 08:03, Gregg Eshelman via Emc-users wrote:
Caligari trueSpace can import STL and it can save to a wide range of formats.
However, it hasn't had any official support since Microsoft bought Caligari to
position trueSpace as a competitor to Google's Sketchup. (I call it Messup
because I
On 7/4/23 08:03, Gregg Eshelman via Emc-users wrote:
Caligari trueSpace can import STL and it can save to a wide range of formats.
However, it hasn't had any official support since Microsoft bought Caligari to
position trueSpace as a competitor to Google's Sketchup. (I call it Messup
because I
Hi
I have been trying to get a rotary fourth axis setup going with the help
of regular and knowledgable contributors to LinuxCnc. We came up against
a brick wall as many other project developers have done.
The problem seems to be that our trajectory planner lack the ability to
look ahead for
It's a good idea to create a drawing like the one in this link. It shows how
to connect a Breakout Board to the
system.https://www.automationtechnologiesinc.com/products-page/featured-cnc-products/kl-5056e-digital-stepper-driverThe
stepper drivers tend to have opto inputs and can be wired to op
On Mon, 3 Jul 2023 at 21:25, condit.alan--- via Emc-users
wrote:
>
> I had to invert the direction on all of my axises to get it working like it
> used to.
Swapping the DIR wires on a bipolar setup is a reasonable way to
invert an axis. But it's possibly not idea for the step pins as the
drivers
Caligari trueSpace can import STL and it can save to a wide range of formats.
However, it hasn't had any official support since Microsoft bought Caligari to
position trueSpace as a competitor to Google's Sketchup. (I call it Messup
because I've seen some of the worst geometry ever made by people
On 7/4/23 03:15, John Dammeyer wrote:
Hi Gene,
I suspect the problem is a bit strange in my case.
I can run the knee at 150 ipm. The tapping in this case happens at 10 ipm.
The I3 parameter means it returns at 30 IPM. I can jog up and down at say 60
IPM and never get a following error for
On 7/4/23 02:01, andrew beck wrote:
I run a CNC machine shop full time.
We always want the step files. Or SOLIDWORKS files etc.
And we make it own gcode from that.
It would be a nightmare to run someone else's gcode lol.
I'll have to agree Andrew. Most of the stuff on thingiverse for 3d
pri
Hi Gene,
I suspect the problem is a bit strange in my case.
I can run the knee at 150 ipm. The tapping in this case happens at 10 ipm.
The I3 parameter means it returns at 30 IPM. I can jog up and down at say 60
IPM and never get a following error for Joint 2 which is the Z axis.
Since this
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