Messages

4301

General Mach Discussion / Re: Strange slave axis problem

« on: May 31, 2012, 12:08:48 PM »

On slaved units I have seen mach3 currupt the XML and cause the Slave drive to run backwards even through the config SAID it was correct.

Try reloading the original backup XML. NOT the backups that MAch3 does.

NOT a good idea to run a drive WITHOUT the motor wired up could cause a drive failure internally.

(;-) TP

4302

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: May 31, 2012, 11:09:50 AM »

Trend litely and double check everything from here on out less you let PUFF the smoke dragon out of his cave(;-)

You need to layout the entire BANDIT Wiring schematic and study it well. IF you do not understand what you are looking at then take the time to LEARN what you need to know BEFORE you hack into the wiring.

Only then will you KNOW where to interface the Kflop into the scheme of the bandit drives.etc.

Just a thought, (;-) TP

4303

G-Code, CAD, and CAM discussions / Re: G40.1

« on: May 31, 2012, 12:20:22 AM »

OK HERE IS A SCARY thought. I just tested a tool comp program with G40.1 AND G40.2 . WIth version .062

THERE seems to be differrences in TC toolpaths between the 2.

OH BOY, and the G40.1/.2 do NOT show up in the mode line. 

I WONDER EXACTLY what ALL the differences are??? 

Just a Scary thought, (;-) TP

4304

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 30, 2012, 11:36:29 PM »

HUM, the stored value will be at the point the slack is taken up in the mechanism and the contact opens. Then Mach3 slows to a stop.

Connect an ohm meter from the tool tip to the contact plate. Step jog up to the plate until the omh meter just shows contact. Zero Z then step jog further until the PROBE LED lights up. That is the switch motion you also have to account for. Once found add it into your tool probe routine.

Just a thought, (;-)TP

4305

Brains Development / Re: Hole Counter

« on: May 30, 2012, 10:59:16 PM »

You really don need a macro pump or brains to do that. Just some simple Gcode.

I assume you are using a Sub program to do the drilling. If so then insert a

#500 = [#500+1]

 at the end of the sub. Each time the sub cycles it increments the #var 1 number. The #vars 500-600 are persistant and Mach3 SAVES them in the XML when it shuts down.

You can use the Var monitor to Do a query on the value of #500 and you have your running hole count.

IF you need to ZERO the VAR from the MDI #500=0 enter.

Just a thought, (;-) TP

4306

General Mach Discussion / Re: We all make mistakes.

« on: May 30, 2012, 10:45:42 PM »

I think you put too much demagnetism back in the coupler. I think You are getting close to creating a flux capacitor.

(;-) TP

4307

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: May 30, 2012, 10:40:30 PM »

YES the KFLOP will accept Resolvers.

(;-) TP

4308

G-Code, CAD, and CAM discussions / Re: problem with z axis DRO

« on: May 29, 2012, 03:13:39 PM »

OK your G code is fine.  You should be able to repeat that code as many times as you need.

Assuming that you load the material against a stop to locate it correctly. Load material Set teh ORIGIN X0Y0Z0 with zero xyz. then press start. The code should cycle all the way thru and return to x0y0Z.500.

Load another part then press start, repeat,repeat.

Are you doing something differrent ?

You have given 2 different examples of the problem. First time you say it ends at Z.4991 which should be correct by code.

The second you said it ends at Z0.8237 ??

Which is it ?

The torch firing in air may be a stuck Zswitch from time to time. as soon as the G28.1 runs it sees the switch active and starts the routine at that point. BUT normally it does NOT do it after the Z touches off. Please recheck the way it is failing and write down exactly the sequence.

As to the Saved postion of Z it all depends on how you setup MACH3 as to if it saves the last position or not.

4309

General Mach Discussion / Re: z axis moving up

« on: May 29, 2012, 12:02:00 PM »

I think you will find the Z lead screww is TOO FINE and you are having to run the stepper  FASTER than its torque curve will allow it to keep up and it looses steps.

Steppers run high torque at LOW rpm and require course feedscrews to keep the stepper inside its torque curve.

Try what tweakie suggested and cut the VEL setting in half as well.  IF that does not do it cut eht settings in half again.

Also you are running close to max on the kernal speed might want to consider also going up to 35K.

(;-) TP

4310

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: May 29, 2012, 11:40:13 AM »

IF I remember correctly the Kflop stuf can handle resolvers directly.

You may want to give TOM a call or email him to verify.

(;-) TP