Messages

41

General Mach Discussion / Re: Draft Mach3 v3.x Programmers Reference Manual

« on: June 06, 2010, 09:46:27 AM »

Very nice,,, I was needing a lot.
Thanks
Rene

42

General Mach Discussion / Source for Bbibliography for learn about scrips and Macros

« on: June 06, 2010, 12:58:50 AM »

Hello

I need to know if are any source for read and download information for learn about MACH scripts,
how to make Macros for Mach, and for all things that's aren't in Mach Manual.

I' like thanks again for all help received here,specially by Hood who was answer all
my questions here.

If I have a chance to study more about Mach, then I will come here to clarify doubts
but now  always are asking from cero,
Sorry to take a long time with my questions from Mach forum users.

Again thanks for all help, here is a great team.

Sorry my bad english. Hope you understand.

Regards

Rene

 

43

General Mach Discussion / Re: charge pump

« on: June 06, 2010, 12:45:47 AM »

Hello, I read  about charge pump, One question.
I have a Hobby CNC pro controller,, this board support Charge pump.?
Sorry my question,,,, is totally new for me.
Thanks in advance
Rene

44

General Mach Discussion / Re: DRIVING A STEPPER MOTOR LIKE SPINDLE

« on: June 05, 2010, 10:01:12 AM »

hI, br549,

That's a sad news, i think that really cnc controller aren't for this fasts speeds, embroidery machines has his property controllers, but we should try to see what happens. Really we are looking for increase embroidery speed using synchronization of movement and using a continuous motor (DC or Stepper), to keep  thread tension as stable as possible.  

First test of my  embroidery machine was using an old SINGER sewing machine, above the table of my cnc router.

Hoop with fabric was bolted in Z axis router support for X and Y movements ,and Z axis stepper was coupled directly to sewing machine shaft using a water hose and clamps. First G code used is very simple in comparative
with personal and embroidery machines.

Some preliminary details
Z axis was set up for Z=1 for 1 revolution= stitch
Z initial = 0 = Needle in upper position
X an Y speed= 1500mm/min
  
A short lines of G code

G90
G21
G64
F 1500
(NEEDLE UP RAPID MOVE- Light bulb Off if On)
M09
(START STITCHING- Light Bulb Off if On)
M09

G00 X0  Y -1.5 ----Moving hoop to first stitch position.

G01 Z-0.8----------------Z moves at 80% of revolution ( First stitch, needle moves in to fabric,move out and stops 3 mm above   sewing machine table

M786 -------------------Macro reset Z values--Now Z= 0 is when needle is 3mm above sewing machine table when is coming out of fabric

G01 X-0.1 Y-19.4 Z-0.4--Hope moves for one stitch, Z complete one revolution and do 40% or next and stops at 3 mm above sewing machine table, this its a guarantee that hoop movement finish before needle is come inside fabric.

G01 Z0.8

M786

G01 X-0.4 Y-25.5 Z0.4

cont...

This way of work gives me a 150 Stitches x minute aprox, I think that the same code in more speed  movements can give 300 SPM.

Now I need to set an M7 command previous to any X and Y movements longer that i.e.7mm, for a solenoid that release thread tension and give a possibility to do  long stitches without thread breakage. I think to set  M7 line before X and Y line, but I need to use a rotary shutter to close solenoid circuit when needle arrives to specific rotation degrees for release tension in this moment.  

Could be in this way


G00 X0  Y -1.5 ----Moving hoop to first stitch position.

G01 Z-0.8----------------Z moves at 80% of revolution ( First stitch, needle moves in to fabric,move out and stops 3 mm above   sewing machine table

M786 -------------------Macro reset Z values--Now Z= 0 is when needle is 3mm above sewing machine table when is coming out of fabric

M7-----------------Activate Output signal for solenoid, but  solenoid start and stop depends of  electric circuit will close when rotary shutter activate or deactivate optical switch.

G01 X-0.1 Y-19.4 Z-0.4--Hope moves for one stitch, Z complete one revolution and do 40% or next and stops at 3 mm above sewing machine table, this its a guarantee that hoop movement finish before needle is come inside fabric.

M9------------------Close Output signal for solenoid.

G01 Z0.8

M786

M7

G01 X-0.4 Y-25.5 Z0.4

M9

cont...

Thanks for your help

Regards

Rene

45

General Mach Discussion / Re: DRIVING A STEPPER MOTOR LIKE SPINDLE

« on: June 04, 2010, 11:04:51 PM »

Hello

I was receiving a good quantity of good answers, I appreciate and thanks a lot for that, but I have a problem that may be is a general concept on how to do this project.

 I need to explain, best that I can how is desired work. In a CNC embroidery machine, First spindle begins rotate and needle is going down, when motor complete 285 degree of rotation  needle  is going out of fabric, In this moment , machine should begins to move hoop to next position and  complete stitch before needle begins penetration in to fabric, this movement is made for X and Y axis. Needle motor speed in each rotation depends of length of stitch; g code must reduce motor speed at beginning of rotation to give chance hoop to complete movement, this is calculated in CAM program previously. If are a long  stitches bigger than embroidery machine can do with usual feed of thread , then is necessary to release thread tension using for example a solenoid, that must turn of when hoop finish movement  when is not necessary more time releasing thread tension and turn off when motor is rotate about 330 degree.  Personal and commercial embroidery machines uses rotary shutters for operate sequentially operations, but I don’t know in what way this rotary are actuating. I have two   theories about how it works, please give me a ray of light…
 
1erst VARIANT
G00 X1.2 Y2.2 M3 S500
G00 X2.5 Y5.3 M3 S350 M7
Cont…..
M3 S500 will be activated by rotary shutter1  at 1 degree of rotation
X1.2 Y2.2 will be activated by rotary shutter2 at 285 degree of rotation
M7 will be activated by rotary shutter3 at 330 degree of rotation.(NC circuit)
M9 will be activated by rotary shutter3 at 359 degree of rotation.(NO circuit)

I s possible to do this,, and  works?


2nd-Variant (Working   in single blk mode)
M3 S500------------Manual start
M9-Activated by rotary shutter No 2 at 45 degree, open a NO circuit and turn off a solenoid (if is activate)
G00 X1.2 Y2.2-----Activated by rotary shutter 1 at 285 degree, OEM TRIGGER #1---Cycle start
M7 ---------------Activated by rotary shutter 2, closes a NO circuit and solenoid turn on
S350---------Activated by rotary shutter at 1 degree of rotation, OEM TRIGGER # 1,  set new speed
Cont…

Sequence of Gcode lines corresponding to sequence in rotary shutters rotation angle activation.

I want to reduce the number of lines in G code but I don’t if is possible.

I have a doubt, Hood explain me that  may be Single BLK mode don’t run as fast like I need , because it I can run  embroidery machine at 480 stitches per minute, it means 8 stitches per second,, the same to say 1 stitch each 133 Milliseconds. Then should be considerate response time for optical switches plus Mach 3 time response for continuous Cycle start in Single BLk mode.

Thanks in advance for your help.

Regards

Rene

46

General Mach Discussion / Re: Mach3 OEM codes for Feedhold and CYcle start

« on: June 04, 2010, 03:52:47 PM »

Thanks Hood
Regards
Rene

47

General Mach Discussion / Re: Mach3 OEM codes for Feedhold and CYcle start

« on: June 04, 2010, 11:44:18 AM »

Sorry my bad question, was too late in night.......

I want to use OEM TRIGGERS  for Cycle Start, Resume, Single Blk mode.
They will be activated by optical switches and rotary shutter in a embroidery machine
shaft.
Also I need to use OEM TRIGGERS for Free Hold, when thread breaks.

I read about configurate this, no problem in this part
I have excel code table for OEM List Alfa 6, that you posted here , thanks

I have an old Mach 3 V1.183.027. I need to know what codes use for this
old version, or if that than I read here are useful for me.

I will thanks if you can help me codes for olv versions of Mach are.

Regards

Rene

48

General Mach Discussion / Re: DRIVING A STEPPER MOTOR LIKE SPINDLE

« on: June 04, 2010, 11:43:19 AM »

Hello, thanks for your answer,
 
Now situation is more clear for me, three questions more

May I connect always stepper in A axis connectors in any configuration (Normal Axis and Spindle)?

Where can I find in Mach Swap Axis button? ,,is this option in Mach 3 1.83.027?

I think this help me, because I only need to positioning, when thread is break ( Macro setting Swap Axis (Spindle Mode to A mode)  and Free Hold, using a optical switch ) or when I need to change thread color ( same macro), in this moment I need to set needle in upper position and iis useful swapping spindle to A axis in this moment.

then I will use

1-Macro for break thread will be  called by  an OEM TRIGGER ----It's possible?
2-Macro for change thread will be called by g code line.

Thanks a lot again

Regards

Rene

49

General Mach Discussion / Re: Mach3 OEM codes for Feedhold and CYcle start

« on: June 04, 2010, 12:31:11 AM »

Hello, I am trying to do the same, but I have Mach 3 Ver 1.83, I need to set in OEM TRIGGERS
Cycle Start, Free Hold and Single Blk Mode
Thanks
Rene

50

General Mach Discussion / DRIVING A STEPPER MOTOR LIKE SPINDLE

« on: June 03, 2010, 11:49:28 PM »

Hello

 I want to drive a stepper in continuous running like a spindle and drive it at different speeds. Mach will be set in Single Block Mode and speed change will be applied using a rotary shutter and optical switches.  I need to know.

1-In what axis in controller should be connecting it?

2-For Start may I use for example M3 S500?

3-What command stops it?

4-How can stop it at exact point?

Thanks in advance for your help.

Regards

Rene