Messages

5631

VB and the development of wizards / Re: Is G04 (dwell) time utterly inaccurate? Below a certain value, pauses are equal.

« on: June 16, 2011, 10:59:53 AM »

Sounds like a GCODE problem with the scribing, not enough retract clearance. IF you command G0 z1 to lift the scribe from the surface the machine will not process the next line of code UNTILL Z reaches the 1 position. SO if the code is correct XY cannot move until z=1. TO test ADD more retract to the move Z=2 to make sure the tip is not draging the surface for an instant due to springback.

Just a thought, (;-)TP

5632

VB and the development of wizards / Re: Is G04 (dwell) time utterly inaccurate? Below a certain value, pauses are equal.

« on: June 16, 2011, 10:51:33 AM »

What you may be seeing IS Mach actually processing the dwell function, it is not just a countdown timer. It also has to put a hold on the buffer queing process. A G4p0 cause the que to hold the data from filling the buffer untill the buffer is empty so it can process the dwell in real time.

BUT this exta process has an overhead . It takes times to do it.

That is my best explaination and you have to remember MACH3 is primarily a CNC machine controller not a high end process controller. The CNC part does not require the precise time function control to turn on/off the coolant or start the spindle.

Just a thought, (;-) TP

5633

General Mach Discussion / Re: VFD and motor voltages

« on: June 16, 2011, 09:40:26 AM »

I think you have seriously over complicated the process(;-)  3p motors have 3 phase wires to hook to. abc sets the phase rotation or the direction the motor will run.  Dual voltage motors HAVE a set of extra leads as well that allow you to put the windings in series or parrallel. high voltage or low voltage.

Match the VFD output rated voltage to the motor rated voltage and you are good to go. That is all there is to it. If your base rotation is backwards then swap any to input leads to the motor.

(;-) TP

5634

General Mach Discussion / Re: 4th axis setup

« on: June 16, 2011, 12:17:56 AM »

OK so in  nut shell IF your Z is above 0 it runs off the Zheight and IF your Z is below 0 it runs off the DRO values.

COOL, I ll have to test it again, (;-) TP

5635

General Mach Discussion / Re: 4th axis setup

« on: June 15, 2011, 11:48:35 PM »

OK COOL but if it runs from the Z height what is the DRO for ?? I'll have to do some testing next week.

(;-) TP

5636

General Mach Discussion / Re: 4th axis setup

« on: June 15, 2011, 11:32:19 PM »

SO you are saying that MACH can adjust the feedrate blend based on the height of Z off the A axis centerline automatically ?
I must have missed that.

(;-) TP

5637

Modbus / Re: Remote USB display with Modbus

« on: June 15, 2011, 10:58:36 PM »

OK one last thing for today,  

Sendserial " abcdefghijklmnopqrstuvwxyz"  Lets see if it will line wrap.  IF it does OK then send the original SCript that had the single string to it from the editor. If that works let me know.

(;-) TP

5638

Modbus / Re: Remote USB display with Modbus

« on: June 15, 2011, 08:12:01 PM »

HUM, no if it runs in vb script it should run as a macropump. The macropump is just a vb script ran 10 times per second all the time.

OK try this  sendserial" ?x0,?y1" & "hello"                it should put hello on the second line down from the top

(;-) TP

5639

Modbus / Re: Remote USB display with Modbus

« on: June 15, 2011, 07:24:56 PM »

OK see I told ya just ONE small itsiy tiny step away. Now we need to figure out the matrix

Try sendserial "abcdefghijklmnop"      that would be 16 charectors or 1 full line.

(;-)TP

5640

General Mach Discussion / Re: AXIS FORMULA Question

« on: June 15, 2011, 07:16:47 PM »

Yep that has been the problem (;-) I only have one line of formula to work with in axis formulas and it takes 4 equations to do all four quads.

I think this ideas is a bust(;-),Would not be the first one to go up in flames (;-) TP