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Date
Re: Axis Drive using Timing Belt.

 

Thanks everyone for the info, good to hear from you Jan.

Best Regards.

Lye chuan.
--- In mach1mach2cnc@..., "janbos2101" <janbos2101@y...>
wrote:
Hey Lim,

Belts work fine, use a fine pitch V-tooth non stretch belt. V-tooth
belts do not slip around the pulley, straight tooth belts may have
play between the teeth of the belt and the teeth of the pulley.
Accomodate your design to have tensioner options because belts tend
to stretch over time. May be make the stepper mounting plates with
long holes to be able to move the motor. Talk to you later,

jan.


--- In mach1mach2cnc@..., lye chuan lim <lyechuan@y...>
wrote:
Hi,

Recently someone ask me to built them a CNC machine
with a travel length of 60" for X & Y axis, since
he does'nt want to used lead screw for the machine,
and ball screw is very expensive, I was wondering if
anyone have try using timing belt instead of chain
and sprocket, can this concept work for a machine
intended to used for engraving ?, Pls advice.

Thanks.

Lyechuan.

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Combi referencing not working.

 

Did someone test the new combi referencing in version 4.0 release ?

I can't get it working.


Olivier.
Re: "Look Ahead" is called what in Mach2?

Art
 

Ahh, sorry Bill, I kinda got the feeling we were talking of two different
things...

Thanks,
Art
www.artofcnc.ca
Re: "Look Ahead" is called what in Mach2?

Art
 

Bill:

>>My interest is in 3-D contour machining and was asking for
information not included in the manual regarding Mach2's specific
capability. G51 is the standard G code for it and an entry for
tolerance. Not included in Mach2...

Actually G51 is kinda standard for scaleing of axis, but then theres a lot
of standards. Sometimes called mirroring, but then thats simply a scale
of -1. Perhaps your speaking of finishing capability where you specify a
tolerance to stay away from the actual toolpath by a set amount??

I still don't get your point on faceting problems or excessivly long
programs. Though if your speaking of a finishing capability, then I can see
where the files would be longer by having the CAM program generate the final
passes, but then file length is not very important these days with multi-gig
hard drives everywhere. But how would lookahead have anything to do with
file length or contouring..

Forgive me if I'm being dense Bill, I just don't understand the question,
but "lack of lookahead" ius something I hadn't come across before, Mach2 has
more than any controller I've heard of in terms of CV.. I think I'm missing
something here...

Art
www.artofcnc.ca
My best wishes for the next developpement version

 

- a better integration of user screens

- acceleration curves integrated in the backlash compensation

- the complete elimination of the mouse, like on industrial controls.

- linear and 3D axis mapping

- enhanced software limits to take in account part holders and
associated stuff, or for example a rotary table sitting on the table.

- a better toolpath draw, updating in all screens, with no offset
problems and a cursor for coodinates picking.

- a better stability if there is a macro error, a better error
reporting, and a debuger for vbscript (the one from microsoft is not
working at all in mach2).

- gecko 2002 support, and gecko 2003 support for dual feedback loops
(with rotary + linear encoders).

- documentation of internal variables, and all the macro associated
stuff. (the actual documents are not up to date).

Best Regards

Olivier.
Re: Tool set switch........pleeeeeese!! :)

 

You need to and my email to your list your spam guard has me locked out.
Jim

----- Original Message -----
From: "guzakaka" <nonna01@...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 1:35 PM
Subject: [mach1mach2cnc] Re: Tool set switch........pleeeeeese!! :)



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




Yahoo! Groups Links
Re: "Look Ahead" is called what in Mach2?

Bill C.
 

Art,

I believe I have confused a couple of issues with Mach2. The ability
to perform the 3-D is covered with a full understanding of the G
codes - my shortcoming.

Thanks again,
Bill Clemens

--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
Hi Bill:

I'm afraid I miss your point. Why would anything special be
required for
contouring?? LookAhead is a CV feature and is automatic when in
G64 mode, is
there some special requirement for contouring operations?


Art
www.artofcnc.ca

----- Original Message -----
From: "Bill C." <billsand@c...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 5:19 PM
Subject: [mach1mach2cnc] "Look Ahead" is called what in Mach2?


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




Yahoo! Groups Links
Re: Tool set switch

Art
 

John:

You'd just feed down very slowly, then theres almost no decel...
Art
www.artofcnc.ca

----- Original Message -----
From: "Bloy2004" <jmnotions@...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 7:19 PM
Subject: [mach1mach2cnc] Re: Tool set switch


--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
What happens to that "room for deceleration" when going with this
tool set switch? Does one use a different technique for activating
the switch?

curious Geor..er John

Vern:

Good idea...

Art
www.artofcnc.ca

----- Original Message -----
From: "Vern" <vbent@s...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 6:30 PM
Subject: Re: [mach1mach2cnc] Tool set switch


Mike/Art:

Would it be possible to laminate together two strips of brass
(choose
your thickness)
sandwiching a piece of strip styrene (again choose thickness).
To the
brass
strips are soldered
leads to go to your Z home or limit input.
The switch is placed on the top of your work and when
contact is made
with tool continuity closes
the switch. The switch thickness would be your Z offset.
Just a thought. I usually just use the old trick of
bringing the tool
down onto a white Zigzag paper(.001").

Cheers, Vern.
----- Original Message -----
From: Art
To: mach1mach2cnc@...
Sent: Thursday, February 26, 2004 2:43 PM
Subject: Re: [mach1mach2cnc] Tool set switch


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




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Re: Tool set switch

dchristal2
 

another keeper
--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
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
Re: "Look Ahead" is called what in Mach2?

Bill C.
 

3-D contouring? Don't you run into problems of 'faceting' or
excessively long programs to compensate for the lack of lookahead?
My interest is in 3-D contour machining and was asking for
information not included in the manual regarding Mach2's specific
capability. G51 is the standard G code for it and an entry for
tolerance. Not included in Mach2...

Thanks much for your help,
Bill Clemens


--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
Hi Bill:

I'm afraid I miss your point. Why would anything special be
required for
contouring?? LookAhead is a CV feature and is automatic when in
G64 mode, is
there some special requirement for contouring operations?


Art
www.artofcnc.ca

----- Original Message -----
From: "Bill C." <billsand@c...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 5:19 PM
Subject: [mach1mach2cnc] "Look Ahead" is called what in Mach2?


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




Yahoo! Groups Links
Re: Freeform machining

Art
 

Hi Danial:

Mach2 will do 3d objects fine, but only if loaded as G-Code. Normally this
is the job of the CAM program , to translate 3d into G-Code applicable.
Finishing pass is the same thing, usually the CAM program generates that
into the G-Code file.

Thanks,
Art
www.artofcnc.ca

----- Original Message -----
From: "mmenig" <mmenig@...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 7:04 PM
Subject: [mach1mach2cnc] Freeform machining


What file format should I use to do a 3D object, or does Mach2 not do 3D
objects?

Also is their an option in Mach2 for setting a finishing pass or do I have
to do that by
offsetting.

Thanks,

Daniel





Yahoo! Groups Links
Re: Freeform machining

 

Sure it can do but you will need a CAM software to convert your 3D objects
to a G-code file for mach2. Even if mach2 has some 2D import functions, for
bitmap images for example, it's not a CAM software, it's a control software.

Some CAM softwares can do basic 3D editing, Visualmill for example is one of
those, but there are others, more or less expensive. The best is certainly
to have 3 softwares, you will choose them according to your need. A CAD one,
a CAM, and a controler like mach2 (the best one).



Olivier.
Re: Tool set switch

 

--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
What happens to that "room for deceleration" when going with this
tool set switch? Does one use a different technique for activating
the switch?

curious Geor..er John

Vern:

Good idea...

Art
www.artofcnc.ca

----- Original Message -----
From: "Vern" <vbent@s...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 6:30 PM
Subject: Re: [mach1mach2cnc] Tool set switch


Mike/Art:

Would it be possible to laminate together two strips of brass
(choose
your thickness)
sandwiching a piece of strip styrene (again choose thickness).
To the
brass
strips are soldered
leads to go to your Z home or limit input.
The switch is placed on the top of your work and when
contact is made
with tool continuity closes
the switch. The switch thickness would be your Z offset.
Just a thought. I usually just use the old trick of
bringing the tool
down onto a white Zigzag paper(.001").

Cheers, Vern.
----- Original Message -----
From: Art
To: mach1mach2cnc@...
Sent: Thursday, February 26, 2004 2:43 PM
Subject: Re: [mach1mach2cnc] Tool set switch


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




Yahoo! Groups Sponsor
ADVERTISEMENT





-----------------------------------------------------------------
---------
--
--
Yahoo! Groups Links

a.. To visit your group on the web, go to:


b.. To unsubscribe from this group, send an email to:
mach1mach2cnc-unsubscribe@...

c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of
Service.









Yahoo! Groups Links
Freeform machining

mmenig
 

What file format should I use to do a 3D object, or does Mach2 not do 3D objects?

Also is their an option in Mach2 for setting a finishing pass or do I have to do that by
offsetting.

Thanks,

Daniel
Re: Tool set switch

Art
 

Vern:

Good idea...

Art
www.artofcnc.ca

----- Original Message -----
From: "Vern" <vbent@...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 6:30 PM
Subject: Re: [mach1mach2cnc] Tool set switch


Mike/Art:

Would it be possible to laminate together two strips of brass (choose
your thickness)
sandwiching a piece of strip styrene (again choose thickness). To the
brass
strips are soldered
leads to go to your Z home or limit input.
The switch is placed on the top of your work and when contact is made
with tool continuity closes
the switch. The switch thickness would be your Z offset.
Just a thought. I usually just use the old trick of bringing the tool
down onto a white Zigzag paper(.001").

Cheers, Vern.
----- Original Message -----
From: Art
To: mach1mach2cnc@...
Sent: Thursday, February 26, 2004 2:43 PM
Subject: Re: [mach1mach2cnc] Tool set switch


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




Yahoo! Groups Sponsor
ADVERTISEMENT





--------------------------------------------------------------------------
--
--
Yahoo! Groups Links

a.. To visit your group on the web, go to:


b.. To unsubscribe from this group, send an email to:
mach1mach2cnc-unsubscribe@...

c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.









Yahoo! Groups Links
Re: Latest KeyGrabber release

Art
 

Les:

>>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.

Annoying isn't it. Happens to me all the time. Something changes somewhere
and I'll be damned if I can figure out why.....Till months later...

Art
www.artofcnc.ca
Re: "Look Ahead" is called what in Mach2?

Art
 

Hi Bill:

I'm afraid I miss your point. Why would anything special be required for
contouring?? LookAhead is a CV feature and is automatic when in G64 mode, is
there some special requirement for contouring operations?


Art
www.artofcnc.ca

----- Original Message -----
From: "Bill C." <billsand@...>
To: <mach1mach2cnc@...>
Sent: Thursday, February 26, 2004 5:19 PM
Subject: [mach1mach2cnc] "Look Ahead" is called what in Mach2?


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




Yahoo! Groups Links
Re: Tool set switch

 

Mike/Art:

Would it be possible to laminate together two strips of brass (choose
your thickness)
sandwiching a piece of strip styrene (again choose thickness). To the brass
strips are soldered
leads to go to your Z home or limit input.
The switch is placed on the top of your work and when contact is made
with tool continuity closes
the switch. The switch thickness would be your Z offset.
Just a thought. I usually just use the old trick of bringing the tool
down onto a white Zigzag paper(.001").

Cheers, Vern.

----- Original Message -----
From: Art
To: mach1mach2cnc@...
Sent: Thursday, February 26, 2004 2:43 PM
Subject: Re: [mach1mach2cnc] Tool set switch


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




Yahoo! Groups Sponsor
ADVERTISEMENT





----------------------------------------------------------------------------
--
Yahoo! Groups Links

a.. To visit your group on the web, go to:


b.. To unsubscribe from this group, send an email to:
mach1mach2cnc-unsubscribe@...

c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: Latest KeyGrabber release

 

named pipes ? I know they are used in remote control software and seem to
work fine. they are here since windows NT 3.1 if i remember well but are not
often used...

I hope to test this soon.

thanks,


Olivier.
Re: Control of Special devices

Les Newell
 

Hi Art,
Surely jou 'just' need to add a couple of extra check boxes here and there. A 10 minute job for a man of your talents :-)

I think I had better start running now...
Thanks,
Les



Art wrote:

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
Yahoo! Groups Links
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