I frequent a site that has a couple members that have done/are doing
some work with laser diodes, letsmakerobots.com. Both Dan M and
TinHead are or have done some work. TinHead is making use of a half or
one watt diode to get some results. Dan M posted a blog about using
laser diodes and not to be
OK it appears I have my servos tuned as good as they are going to get.
See images 5, 6 and 7: https://sites.google.com/site/bmklawt/home/pid-tuning
Adding any I or D to any axis make things worse to violent.
Anyway I have terrible oscillation or dithering on the Z axis and if I move the
axis a bi
If my ppmc.tbl file says that Tool 1, is D.100 and after I start EMC/Axis, I
either MDI T1M6 or the program does I can see that the tool information is
displayed in the Axis interface.
If I run a program with G41 it does pick up cutter comp, now if I open the tool
table from within the Axis int
most diodes can actually hit 30%-50% electrical to optical efficiency.
--- On Fri, 10/21/11, Jon Elson wrote:
From: Jon Elson
Subject: Re: [Emc-users] Laser diode for engraving
To: "Enhanced Machine Controller (EMC)"
Date: Friday, October 21, 2011, 7:59 PM
Viesturs Lācis wrote:
> Hello, gen
http://www.ebay.com/itm/LOT-5-808nm-high-power-burning-laser-diode-1-watt-DPSS-IR-illuminator-/170710269814?pt=LH_DefaultDomain_0&hash=item27bf1fff76
all together (optically more complex engrave head), or
http://www.ebay.com/itm/LOT-5-808nm-high-power-burning-laser-diode-1-watt-DPSS-IR-illuminator-
thanks for all the feedback guys!
the more i study it, the more i believe it will work.
i am exploring one alternative option right now, but if that doesn't work,
i'll try the emcrsh route.
thanks all!
-lapoe
-Original Message-
From: s...@highlab.com [mailto:s...@highlab.com]
Sent: Thu
Viesturs Lācis wrote:
> Hello, gentlemen!
>
> I need a laser diode for engraving in wood. I have been looking in
> eBay, but I mostly see either ~300mW diodes or something priced over
> 1K $, which exceeds my budget ten times. There was also one seller
> with 20W diodes for a reasonable price, but
On Friday, October 21, 2011 09:44:51 PM Peter Blodow did opine:
> gene heskett schrieb:
> > I would certainly try it. I have had no problems, but that is how I
> > have always done it. With my 60 years of chasing electrons for a
> > living, that is a lesson I learned about the first time I ever
On Friday, October 21, 2011 09:31:58 PM Jon Elson did opine:
> gene heskett wrote:
> >> With only the encoders plugged into the PPMC boards the D-sub
> >> connector does not show ground.
> >> OK let make sure I am saying this right with only the encoder
> >> plugged in and my meter set to ohms, on
I see the first paragraph of my last post wasn't clear. Here it is
again, hopefully more understandable.
For homing, could you give the PID command a constant ramp (use the
integ component?) until the "home" microswitch closes. At that point,
save the feedback encoder's position as a constant o
On 10/21/2011 09:02 AM, Kirk Wallace wrote:
> I tried the "Set Home" button first, which simply put encoder.0.reset
> and encoder.1.reset on a pyvcp button. What happened was one encoder
> would reset a significant time latter than the other. PID would either
> see the position or the command chang
Hello, gentlemen!
I need a laser diode for engraving in wood. I have been looking in
eBay, but I mostly see either ~300mW diodes or something priced over
1K $, which exceeds my budget ten times. There was also one seller
with 20W diodes for a reasonable price, but he could not provide any
informat
Chris Reynolds wrote:
> Thanks for all the suggestions so far. I was hoping to stay in the open
> source realm, rather than go the commercial route. I guess I could try
> something like wine to run the windows app in linux and see if that will
> work, but in my past experience it didn't usually
On Fri, 2011-10-21 at 13:06 +0100, andy pugh wrote:
> On 21 October 2011 06:58, Kirk Wallace wrote:
>
> > The PID sees
> > a position change and moves during the counter synchronization.
>
> You probably need to disable the PID during the synch. Possibly using
> an inverted oneshot on the edge (
It's weird that the sample config works but switching to emcrsh locks it up.
Are you sure adding emcrsh was the only change between the working and broken
configs?
What are you doing in your base thread that 100 microseconds is not enough?
Here's a config based on emcrsh that i'm trying to use
Servo Tuning Resource:
http://support.motioneng.com/Downloads-Notes/Tuning/default.htm
good luck.
Noel.
Roguish
-Original Message-
From: Tom Easterday [mailto:tom-...@bgp.nu]
Sent: Tuesday, October 18, 2011 5:20 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] plea for hel
I am not in a position to test your sequence of commands to emcrsh right
now, but it looks pretty basic so I would be surprised if it is specifically
with that sequence. Are you entering those commands through a telnet
session, i.e. manually typing them?
First thing to do would be to use one of t
Bruce,
Try to not edit your tool table outside of Axis. In EMC2.4.6 the tool table is
edited from a pulldown menu in the Axis interface. When a tool call (Tx M6) is
performed either in MDI or from a G-code program running, the values for your
tool diameter and length will be displayed in the
On 21 October 2011 06:58, Kirk Wallace wrote:
> The PID sees
> a position change and moves during the counter synchronization.
You probably need to disable the PID during the synch. Possibly using
an inverted oneshot on the edge (or maybe something else entirely)
--
atp
"Torque wrenches are fo
On 21 October 2011 07:54, Hubert Bahr wrote:
> Its been a couple of year's since I bought it. But they did price it on
> request. Roughly as I remember, Cad was free, 2.5 d was about $150.
OK, so very much more Alibre pricing than Unigraphics.
That makes it more interesting.
--
atp
"Torque w
On 21 October 2011 02:43, Chris Reynolds wrote:
> Thanks for all the suggestions so far. I was hoping to stay in the open
> source realm, rather than go the commercial route.
There is HeekCAD and HeeksCNC, but they are rather a "work in progress".
https://github.com/Heeks
I haven't looked at e
Its been a couple of year's since I bought it. But they did price it on
request. Roughly as I remember, Cad was free, 2.5 d was about $150. I
was and hope to get back to, trying to build a 5 axis machine. Family
Heath problems put that on hold. 2.5 d to my best recall does get you
indexing
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