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Hi Olivier,

The big problem is that I can't find anything that has changed. I am using the PostThreadMessage Windows API call to send key strokes to Mach2. For some reason it takes a very long time for this function to return.
I have not changed anything about the way I am calling the function so I don't know why it takes longer now than it did. Nothing I have tried has made any difference.
Once Art adds the pipe code to Mach2 I will be able to do away with this call. Pipes seem to have a very low latency and my tests show a virtually instantaneous response to joystick movement.

Les



Digital audio Pro wrote:

Thanks Olivier.

I had already seen this one. I'm looking into it..

Thanks,
Art
www.artofcnc.ca

Don:

There is only a G2002, the G2003 is a concept in the works as an expanded
2002. The 2002 stated as a cube and ended up a slab, but its the same
function. Mach2 supports only the slab version of the 2002. (Perhaps its me
who screwed up, I may be behind the curve here as I've been far too busy to
keep up..

Art
www.artofcnc.ca

Ron:

Art, you havent mentioned the OCX recently- is that revision still on your

plate? Ive got a full interactive Mill program ready to run as soon as I can
get an OCX.


As of next version the OCX should work fine. Just tested it last night
from VB, no trouble. Will release soon..

Art
www.artofcnc.ca

Hi Bill:

Yes, G61 and G64 switch between the modes.

The lookahead is automatically allocated in the latest versions. There is
a DRO to set it, I'll have to look it up, but it won't increase your
performance to change it I don't think. Mach2 uses a strange look ahead. It
decides how far to look ahead based on the type of code it sees. If a lot of
G1's are in a line, then the lookahead is 50 ahead, but if there is only 10
g1's and then a G0, then only 10 lines lookahead are used beacuse it doesn't
make sense to look at a g0 after G1's. There a few rules built in here as a
result of multiple test releases of various ways of doing this. Current
method seems to be most efficient with few problems reported. CV is always a
compromise, but I have tried to make it an intelligent one...

Art
www.artofcnc.ca

Hi Les:

I have reluctantly added it to the list in a high spot. (I'll curse you as
I plod though all the boilerplate code required... ;) )]

Art
www.artofcnc.ca

So what is the feature that will allow Mach2 to be successful
coutour software? I cannot find anything in the manual that even
refers to a "look Ahead" feature (G51) nor anything that resembles
it. What am I overlooking? Do you configure CV to act as a look
ahead? How?

Bill Clemens

Mike:

What you need is a probe command and a probe input (Digitize). In a macro
button, you would put a

code( " G32 Z -10 " ) // set the Z number to the max you want to drop in
case of error. If the switch is hooked to the digitize input, the Z drop
will stop when the switch gets activated. Make sure you have room for a
deceleration of the axis. Then you need a
code( "G92Z0") to set the Z axis to zero, then an
code( "G0Z3") to move to 3 inches up, then a
code( "G92Z0") to set it back to zero.

So the whole macro button would be similar to:

code "G32Z-10"
code "G92Z0"
code" G0Z3"
code "G92Z0"

I haven't tested this , but it should do the job. Just make sure your
switch is triggering the digitize input else it won't work and you'll drive
into the table..

Art
www.artofcnc.ca

Robin:

Change your screen setting to 1024x768 and set your DPI (in the advanced
settings) to 96, then all will show.

Thanks, Glad to hear the special bat file fixed you up. (Glad I wrote that,
saves me alot of diagnostics time...)

Art
www.artofcnc.ca

This sounds like about the same macro that I use for THC.
You will need a DRO to enter the switch travel distance, other that that
I could modify it to do what you want. You would want to have the switch use
one of the Limit switch inputs. The probe ( move down until the switch
makes ) move back up the switch travel distance and zero the Z-axis.
Contact me off list and I'll see what I can do.
Jim
Jim

Hi Bill, and thanks for replying. I am actually using an omron micro
switch with my plunger system attached to it. Typically these
switches have given between .005" and .010" which is more than
adequate for my needs. I had hoped to wire it as the -Z reference but
I don't want the 0.0 to be at the switch but say 3" above that point.
I don't know where the actual point will be yet till I get the switch
wired and programed. Any help will be appreciated.
Mike

ps bar chord....hmm you play??



--- In mach1mach2cnc@..., "barrchordbill"
<billjames@c...> wrote:

Mike,
What type of switch are you using, how is it interfaced to the
control, and what kind of accuracy are you looking to achieve?

Bill

--- In mach1mach2cnc@..., "guzakaka" <nonna01@e...>
wrote:

Anyone???????????---I am not opposed to begging if necessary!! :)

Mike



In mach1mach2cnc@..., "guzakaka" <nonna01@e...> wrote:

Art or anyone, I have made a switch appratus to set the tool

length

within the program or through a macro. My problem is I don't

know

how

to write macro's nor do I know how to set the switch settings

to

get

the program to do what I want. So here goes with what I want to
achive.

At the x0.0y0.0 on my table I want to be able to have the

machine

lower the tool onto the switch, move up a given amount from

that

point and then automatically set the z dro to 0.0. Can this be
accomplished and if so does it need to be a macro? By doing

this

the

tip of each tool will be at the same point over the table and

in

so

doing will make my setup time much shorter. I only run 1 part

runs

at

a time and may have as many as 5-6 tool changes. Since I don't

have

atc this causes quite a bit of time at the machine setting the

tool

offset.

Mike

Mike,
What type of switch are you using, how is it interfaced to the
control, and what kind of accuracy are you looking to achieve?

Bill

--- In mach1mach2cnc@..., "guzakaka" <nonna01@e...>
wrote:

Anyone???????????---I am not opposed to begging if necessary!! :)

Mike



In mach1mach2cnc@..., "guzakaka" <nonna01@e...> wrote:

Art or anyone, I have made a switch appratus to set the tool

length

within the program or through a macro. My problem is I don't

know

how

to write macro's nor do I know how to set the switch settings to

get

the program to do what I want. So here goes with what I want to
achive.

At the x0.0y0.0 on my table I want to be able to have the

machine

lower the tool onto the switch, move up a given amount from that
point and then automatically set the z dro to 0.0. Can this be
accomplished and if so does it need to be a macro? By doing this

the

tip of each tool will be at the same point over the table and in

so

doing will make my setup time much shorter. I only run 1 part

runs

at

a time and may have as many as 5-6 tool changes. Since I don't

have

atc this causes quite a bit of time at the machine setting the

tool

offset.

Mike

Art, i just installed 4.0 release, and was surprised to see the
homing was not working perfectly like before.

it's not a big problem but :

After X referencing for example, the DRO should give X = 272 mm,
according to the setings in the setings screen.

but in fact he gives 271.998 mm.

Why ? It's certainly because of your modification in the 4.0 release.

Regards,

Olivier.

Anyone???????????---I am not opposed to begging if necessary!! :)

Mike



In mach1mach2cnc@..., "guzakaka" <nonna01@e...> wrote:

Art or anyone, I have made a switch appratus to set the tool length
within the program or through a macro. My problem is I don't know

how

to write macro's nor do I know how to set the switch settings to

get

the program to do what I want. So here goes with what I want to
achive.

At the x0.0y0.0 on my table I want to be able to have the machine
lower the tool onto the switch, move up a given amount from that
point and then automatically set the z dro to 0.0. Can this be
accomplished and if so does it need to be a macro? By doing this

the

tip of each tool will be at the same point over the table and in so
doing will make my setup time much shorter. I only run 1 part runs

at

a time and may have as many as 5-6 tool changes. Since I don't have
atc this causes quite a bit of time at the machine setting the tool
offset.

Mike

It's funny i just sent you a message about this. But why is it so slow now ?
the keygrabber debug version just before the release version was quite good
for timings... i always use it.

Olivier.

Les, the keygrabber version in mach2 version 4.0 don't work for the joystick
mode. there is a very very long delay (about 2 secondes) as i said to you
some times ago. Each time i upgrade mach2 i have to overwrite with an older
keygrabber beta version.

Could you take a millisecond of your spare time to see this :=) ?

Best Regards,

Olivier

Hi all,
I have just released the latest version of KeyGrabber, V3.9.
There are only a couple of minor bug fixes ompared to the version supplied with Mach2.
Olivier, I am afraid that joystick response is still very slow. When Art gets the time he will make some changes to Mach2 which should drastically improve the response speed.

This release can be found in the files area of this group.

Les

Art,

I used the .BAT file and it worked!!!
But... my monitor does not show all the screen...I have tried all of the "set" files but to no avail...any suggestions?

Robin

PS...I need to learn how to make the screens.

That is what I use on my 50"*98" gantry that I just finished. I use
servo motors and Gecko 340's. The servo motors are mounted to 50:1
gear reducers with .375 pitch belt 1" wide on 18 tooth pulleys for
the X and Y. The only thing I noticed is that there is a little back
lash in the reducers (used off of E-Bay). I have done test cuts at 50-
100 ipm for straight line moves and arcs or I can photo engrave at 5-
20ipm. It delivers more than enough cutting force. It is also very
smooth when I use the CV function for cutting small point to point
contours.(NURBS Splines)

So far so good.......

Mark

--- In mach1mach2cnc@..., "Bloy2004" <jmnotions@c...>
wrote:

--- In mach1mach2cnc@..., "stevenson_engineers"
<john@s...> wrote:

Art,
Down loads page showing V2.0 as lockdown and 3.5 as development
Last help file is 11/02/2003.
I have deleted temp internet files and updated the page but

still

shows old one.
Don't think it's my computer as I downloaded the development V

4.0

about 4 days ago OK so if anything cache should show this.

Be a good lad and have a look please - if you have a millisecond.

John S.

John...I checked the site.
It's up-to-date with V4 as lockdown and manual last update as
11/5/03.
By the way, Hope your eye is getting stronger, but take it slow.
John (bloy)

ooops.... Wrong person....sheeesh!(as I knock myself on the head)