I have a routine that lets me mill a deep circle in several passes,
typically to cutout circles from plates.
Something strange is going on and the resulting shape is not exactly round.
It can be best described as a circle with humps.
The routine is below. It is basically a while loop, milling pro
On 25 September 2012 19:20, Igor Chudov wrote:
> I have a routine that lets me mill a deep circle in several passes,
> typically to cutout circles from plates.
You ought to be able to do this with one line of G-code?
G2 I[http://www.ifixit.com/Manifesto
-
On Tue, 2012-09-25 at 13:20 -0500, Igor Chudov wrote:
> I have a routine that lets me mill a deep circle in several passes,
> typically to cutout circles from plates.
>
> Something strange is going on and the resulting shape is not exactly round.
> It can be best described as a circle with humps.
Igor,
I don't have an answer for you, other than to check on how you've defined you
trajectory planning accuracy outside of this routine.
Why are you using two half circles? You could just send the cutter back to the
starting xy location in a single G2 instruction.
N. Christopher Perry
On Se
Andy, thanks, what is P? Number of passes?
The problem is that the lumps do not look like caused by backlash.
There is one place where there is a lump, caused by all passes except the
first one. I am very puzzled.
i
On Tue, Sep 25, 2012 at 1:40 PM, andy pugh wrote:
> On 25 September 2012 19:
On 25 September 2012 20:01, Igor Chudov wrote:
> Andy, thanks, what is P? Number of passes?
Yes.
> The problem is that the lumps do not look like caused by backlash.
Odd, then.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
-
How big are the "humps"? How many are there?
Are you in exact stop mode? If motion stops at the beginning/end of
each semicircle then you will get a little hump from springback during
the pause. Lead-in & out are typ used when cutting IDs to prevent
that.
Stephen
-
On Tue, Sep 25, 2012 at 2:13 PM, Stephen Dubovsky wrote:
> How big are the "humps"? How many are there?
>
>
There is one big hump on an about 4 inch circle. This hump is about 1mm
tall and 20mm wide.
It appears consistently on all passes, except the first one.
There is also a much smaller hump
On Tue, 2012-09-25 at 15:13 -0400, Stephen Dubovsky wrote:
> How big are the "humps"? How many are there?
>
> Are you in exact stop mode? If motion stops at the beginning/end of
> each semicircle then you will get a little hump from springback during
> the pause. Lead-in & out are typ used when
Humps are
1) Northwest corner, biggest hump, 1mm tall by 20mm wide
2) Northeast corner, 0.5mm by 15mm wide
On Tue, Sep 25, 2012 at 3:08 PM, dave wrote:
> On Tue, 2012-09-25 at 15:13 -0400, Stephen Dubovsky wrote:
> > How big are the "humps"? How many are there?
> >
> > Are you in exact stop mo
so be tempted to use G2 I J Z P directly to
rule out any... odd motion planning.
Ben
-Original Message-
From: Igor Chudov [mailto:ichu...@gmail.com]
Sent: 25 September 2012 21:31
To: dengv...@charter.net; Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Helical interpolation not
way to do most everything.
Terry
- Original Message -
From: dave
To: Enhanced Machine Controller (EMC)
Cc:
Sent: Tuesday, September 25, 2012 3:08 PM
Subject: Re: [Emc-users] Helical interpolation not quite round, WTF?
On Tue, 2012-09-25 at 15:13 -0400, Stephen Dubovsky wrote:
>
Igor Chudov wrote:
> Andy, thanks, what is P? Number of passes?
>
> The problem is that the lumps do not look like caused by backlash.
>
> There is one place where there is a lump, caused by all passes except the
> first one. I am very puzzled.
>
Can you blow up the Axis plot window and see the
Igor Chudov wrote:
> Humps are
>
> 1) Northwest corner, biggest hump, 1mm tall by 20mm wide
> 2) Northeast corner, 0.5mm by 15mm wide
>
This has to be a program error. And, you should be able to EASILY see
this on
the Axis 3D display. Load the program, and then use the mouse buttons to
tilt t
On Tuesday 25 September 2012 23:23:36 Igor Chudov did opine:
> I have a routine that lets me mill a deep circle in several passes,
> typically to cutout circles from plates.
>
> Something strange is going on and the resulting shape is not exactly
> round. It can be best described as a circle with
I am beginning to suspect that perhaps the screws that are used to tram the
head are not tight. I will check.
Igor
On Tue, Sep 25, 2012 at 10:28 PM, Gene Heskett wrote:
> On Tuesday 25 September 2012 23:23:36 Igor Chudov did opine:
>
> > I have a routine that lets me mill a deep circle in sever
Igor Chudov wrote:
> I am beginning to suspect that perhaps the screws that are used to tram the
> head are not tight. I will check.
>
Oh, well, that is an entirely different matter. You should be able to
put a bar in the
spindle and try to rock it.
Jon
--
I am highly embarrassed, but I will confess anyway, the problem was that
the bolts holding the head, worked loose.
I tightened them and milled out perfect circles with beautiful finish.
Thanks, guys!
i
On Wed, Sep 26, 2012 at 9:16 PM, Jon Elson wrote:
> Igor Chudov wrote:
> > I am beginning
Igor;
> I am highly embarrassed, but I will confess anyway, the problem was that
> the bolts holding the head, worked loose.
>
> I tightened them and milled out perfect circles with beautiful finish.
Sometimes the simplest, easiest solutions are the hardest ones to find.
I just spent a good few
I favorite thing that happened to a few of us at a previous job fixing
electronic kits (amplifiers tuners etc)
one sits there scope probe in hand probing everywhere on the board and
someone wanders by and says
I would work better if you switch it on!
I have been on both sides of that one :)
Dave
Having done customer support in the past on PLC related equipment, you
quickly learn that when someone calls you with a problem where they
can't communicate with it, it is no longer operational etc;
The first question you always ask, is there a power on light on the
front of the controller, and
Igor Chudov wrote:
> I am highly embarrassed, but I will confess anyway, the problem was that
> the bolts holding the head, worked loose.
>
> I tightened them and milled out perfect circles with beautiful finish.
>
Well, the only surprise is that the machine worked at all, I'd think
with the he
On Sep 26, 2012 9:55 PM, "Igor Chudov" wrote:
>
> I am highly embarrassed, but I will confess anyway, the problem was that
> the bolts holding the head, worked loose.
>
> I tightened them and milled out perfect circles with beautiful finish.
>
> Thanks, guys!
>
> i
>
>
When I first tested my home
Jason;
IMHO, so far you win the prize! ;-)
Another JohnS.
On 2012-09-28, at 1:10 PM, Jason Burton wrote:
>
> In my fatigue the night before, I had run the point to point wiring without
> insulation stripping to make sure everything would reach. As the build
> finished later that night, I tighte
On 09/27/2012 09:41 AM, Dave Caroline wrote:
> I would work better if you switch it on!
There is someone at work who has done it to me so often that the first
thing I say to her is "Did you plug it in? Did you turn it on?"
One day she came to me and said something like "The computer's stuck
i
On 09/27/2012 11:19 AM, Dave wrote:
> The first question you always ask, is there a power on light on the
> front of the controller, and what color is it? That way they look to
> make sure it is actually on. The power on indicator lights were always
> green, but they don't know that.
What a grac
On 9/28/2012 9:13 PM, cogoman wrote:
> On 09/27/2012 09:41 AM, Dave Caroline wrote:
>> I would work better if you switch it on!
> There is someone at work who has done it to me so often that the first
> thing I say to her is "Did you plug it in? Did you turn it on?"
>
> One day she came to me a
Hi John,
Thanks. I just wanted Igor to know he's in sympathetic company. :)
Best,
Jason
On Sep 28, 2012 12:15 PM, "John Stewart" wrote:
>
> Jason;
>
> IMHO, so far you win the prize! ;-)
>
> Another JohnS.
>
> On 2012-09-28, at 1:10 PM, Jason Burton wrote:
> >
> > In my fatigue the night before
28 matches
Mail list logo
