Messages

3691

General Mach Discussion / Re: Mach3 and Tapmatic Tapping Head

« on: November 03, 2012, 06:36:03 PM »

The clutch is a safety NOT a means to run the taphead. UNTIL you apply downpressure you will not engage the clutch that drives it down AND until you apply UP pressure it will not reverse itself and retract the tap.

Ideally I always run a touch of overfeed to insure good pressure on the clutch. Same with retract do the initial retract to set the clutch at MAX speed (G00) then feedup the rest of the travel. The idea is to get the tap retracted and NOT have a lot of excess spring pressure at the point  just before it clears the surface to prevent it springing up and tearing the last thread or so.

Being it is a floated design it is not really RPM sensitive as long as you are close to what you tell the machine it actually is.  IF you are off a few rpm it is not a big deal to the taphead.

Tapmatic GIVES you the proper sequence to follow for CNC use.

Just a thought, (;-) TP

3692

G-Code, CAD, and CAM discussions / Re: Digitizer output comand?

« on: November 03, 2012, 04:25:23 PM »

From a CB script use

OpenDigFile()
CloseDigFIle()

From a G code file use

M40
M41

(;-) TP

3693

General Mach Discussion / Re: Mach3 and Tapmatic Tapping Head

« on: November 03, 2012, 04:15:23 PM »

WHen I made the disc for the BP here I used a 50% factor for the on off. THere ended up being half the disc cut away. It reads precisely as fast as the spindle will run 5000 rpm.

That was with using the LPT port driver.

(;-) TP

3694

General Mach Discussion / Re: Proma THC - Moves Z up but not down.

« on: November 02, 2012, 11:04:19 PM »

There are several things that come to mind BUT not knowing exactly what you have setup screen wise it is hard to guess.

Plasma with THC has extra things that go bump in the night that REG mill screens do not have.

Min THC move
Max THC move
AntiDive


I would gues that you have checked to see that MACH3 is SEEING the down input during a cut  when it should be going DOWN in Z ?? Dianostic screen and verify that eh THCdown LED is going active. IF it IS then it shoudl be a setting in MACH3 that is blocking the movement for DOWN.

What have you got the min/max z THC values set to ?? IF the min is too hiogh then it will NOT go lower than the setting ??

How about the antidive. That is a setting that STOPS the down move during certain conditions that MACH3 may see during a cut such as crossing a open slot OR the material drops out from under the torch quickly like a heat expansion JUMP as the metal heats up and expands to the point that it JUMPS.

ALSO you may want to check that in the pin setup that you do NOT have simulate checked as this CAN mess up the THC logic IF it gets both signal types internally.

YOu may also want to uncheck the" USE thc even when not in THC mode". 

Just a thought, (;-) TP

3695

VB and the development of wizards / Re: Numberpad function problem

« on: November 02, 2012, 10:26:47 PM »

HI ANton,   The numberpad IS expandable you just can't do it WHILE it is active. While you have the window open click back onto the mach3 screen to make it active THEN adjust your numberpad window size.

AS to the Cancel you are correct it should return a <nill> to signal the script that the NumPad was cancelled and to cancel the script function.

I reported that to Brian.

(;-) TP

3696

General Mach Discussion / Re: Wiring and parameter for Tamagawa driver with mach3

« on: November 02, 2012, 08:02:14 PM »

I do not think they will do step/dir directly. I see analog and cw/ccw control.  You MAY be able to find a step/dir - cw/ccw converter board to do the deal.

The dir pin would drive the flip flop for cw/ccw and the step would provide the pulses.

Just a thought(;-) TP

3697

General Mach Discussion / Re: Plasma Consumable Tracking

« on: November 02, 2012, 06:13:47 PM »

Here it is 2 different ways the file will unzip to 2 page file sets. Same page just different ways for Machscreen to use.

(;-) TP

3698

General Mach Discussion / Re: Plasma Consumable Tracking

« on: November 02, 2012, 05:15:59 PM »

IS it tuesday yet?

Do you have need for a basic shapes generator for plasma ?  It generates gcode for basic shapes like squares,rectangles, Circles,ovals,triangles, Burn holes.

It is in PAGE form you would add the page to your existing screenset.

3699

General Mach Discussion / Re: Plasma Consumable Tracking

« on: November 02, 2012, 02:32:03 PM »

In Scam like mach3 and other developing software there are always the posibilities of a bug sneaking in. IF you check on the Scam Yahoo site I am sure if there is a problem it will be mentioned AND fixed right away. IF not then please bring it to Les's attention .


O master you must have me confused with someone else I am a HEY YOU.

(;-) TP

3700

General Mach Discussion / Re: Plasma Consumable Tracking

« on: November 02, 2012, 02:01:46 PM »

Try it this way the function is added to the end of the OnPenDown() function AFTER the M3 CALL.



function OnPenDown()
   
   if(dist >= (refdistance)) then
      dist = 0
      post.ModalText(" G28.1 Z")
      post.Number(3 * scale, "0.00")
      post.Eol()
      post.ModalText(" G92 Z0.0\n")
      post.ModalText (" G00")
      post.ModalNumber(" Z", switchoffset, "0.0000")
      post.Eol()
      post.ModalText(" G92 Z0.0\n")
      post.CancelModalNumbers()
   end
   post.ModalText (" G00")
   post.ModalNumber (" Z", pierceHeight * scale, "0.0000")
   post.Eol()
   if (preheat > 0) then
      post.Text ("\n G04 P")
      post.Number (preheat,"0.###")
      post.Eol()
   end
   post.Text ("\n M03\n")
   if (pierceDelay > 0) then
      post.Text (" G04 P")
      post.Number (pierceDelay,"0.###")
      post.Eol()
   end

Tpierce = (Tpierce + 1)
   if (string.find(operationName, _("Outside Offset") )) then
     post.TextDirect("o549 \n")
     post.Text (" X")
     post.Number (Sline1,"0.0000")
     post.Text(" Y")
     post.Number (Sline2,"0.0000")
     post.Eol()
   end
end

GL