Author Topic: NFS Turn Wizard  (Read 220400 times)

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Offline Gerry Sweetland

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Re: NFS Turn Wizard
« Reply #200 on: February 16, 2015, 11:31:58 AM »
Just maybe to help clarify my previous post...
I am entering Z start at 0 and X start at the outer dia. of my part (in this case +1.131) and Z end at -1 and X end at +.881 (removing .25" material) in both wizards
You can see in the tool path windows how each wizard shows different starting points too

Standard wizard


And the NFSTurn wizard


Thanks,
Gerry
« Last Edit: February 16, 2015, 11:35:24 AM by Gerry Sweetland »

Offline Ron Ginger

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Re: NFS Turn Wizard
« Reply #201 on: February 16, 2015, 01:28:18 PM »
The NfsTurn wizard uses the terms Start and End to indicate the first and last cut to make. So entering the Xstart value will determine the first cut made and Xend will be the finish size. I first had Xstart to be the stock size, but that confused people so I made it to be the first cut. I dont know what the other wizard does.

It looks like the other wizard stops Z a cut distance away form the  final size, then makes a final pass. There are lots of different strategies to use in making a wizard, I guess we each pick one and do it that way.

The 008.zip file is the latest, I guess I forgot to update the version number in the code.

Offline Gerry Sweetland

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Re: NFS Turn Wizard
« Reply #202 on: February 16, 2015, 01:41:54 PM »
thanks for the quick reply Ron.
Why do you think in the NFS wizard the Z start is ~1.5 inches to the negative with Z start set at 0 and in the other wizard the Z starts at 0 with the Z start set to 0?
Can you see that in the tool path window?  Every time I go to run the program it retreats in Z- and hits the limit switch.  Well into my part, not at the face?
Thanks,
Gerry

Offline Ron Ginger

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Re: NFS Turn Wizard
« Reply #203 on: February 16, 2015, 02:54:45 PM »
Because you set Safe Z to 1.5 on the tool select screen. Its on the lower right side of the tool select screen.

Offline Gerry Sweetland

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Re: NFS Turn Wizard
« Reply #204 on: February 16, 2015, 03:42:26 PM »
Because you set Safe Z to 1.5 on the tool select screen. Its on the lower right side of the tool select screen.

Thanks again Ron for your input and quick replies.
Yes, it is set to +1.5 but isn't that where the lathe travels for a tool change?  That part works fine, it is when I hit cycle start after tool change that it goes deep into my part in either X or Z and hits a limit switch.

I'm going to try and make a movie of what I'm doing and the results tomorrow.  I'll post it on YouTube.  Hopefully that can shed some light on what I'm doing wrong.  I know it is just something simple that I am missing.
Thanks again,
Gerry

Offline Ron Ginger

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Re: NFS Turn Wizard
« Reply #205 on: February 16, 2015, 05:53:23 PM »
Read the comments in the gcode- they detail all the inputs you made. Here is the tool change part:
Code: [Select]
(***New Tool Selected***)
( Unnamed tool)
G00 Z 1.5
G00 x 1
M6 T101
M3 S 2400
G01 F 10
Note it moves first to Z 1.5, should be safe to move z first, then it moves to x1,

Next it starts the turning operation:
Code: [Select]
(***Turning***)
(Xstart= 1.131 Xend= 0.881 Xcut= 0.015)
(Zstart= 0 Zend= -1)
(will make 15 cuts of 0.015)

I see here I was wrong about the Xstart in my earlier  post. You specified an Xstart of 1.131.  in the code its

Code: [Select]
G00 X 1.116
G00 Z 0
(Start Pass 1)
G01 X 1.116
G01 Z -1
G00 X 1.216
G00 Z 0

The move is to X 1.116, which is .015 less than Xstart. The cut moves to Z-1, backs off the cut by 0..1, X 1.216, then returns to Z0 for the next pass. All this code looks fine, no strange moves outside the cut range specified. The last pass is:

Code: [Select]
(Last pass)
G01 X 0.881
G01 Z -1
G00 X 0.991
G00 X 1.131 Z 0
(***File Ended***)

So it looks to me like this is well behaved code doing exactly what you entered.

Ah, I just re-read your post

How are you setting your DROs? did you take a cut, measure the actual size and enter that to the X dro? It sounds like the machine is not referenced to the part.
« Last Edit: February 16, 2015, 05:57:05 PM by Ron Ginger »

Offline Gerry Sweetland

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Re: NFS Turn Wizard
« Reply #206 on: February 16, 2015, 06:44:45 PM »
Thanks for putting up with me Ron, much appreciated.  
I set the DRO's by touching to a pc. of paper in X, I measure the part and add twice the thickness of the paper and enter that number into the X axis DRO.  In Z I face the part and enter 0 in the Z axis DRO.  I was doing a light cut in X and measuring the result and entering that in the DRO, but I stopped using that method because I am doing this over and over to learn and was using up material.

I use the same method in both the NFS wizard and the standard turn wizard,  The standard wizard works and NFS one doesn't  I think I must be doing something wrong in the NFS wizard.

I'll play with it more and see where I'm messing up.
Thanks,
Gerry

Offline Ron Ginger

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Re: NFS Turn Wizard
« Reply #207 on: February 16, 2015, 07:27:19 PM »
Quote
Why do you think in the NFS wizard the Z start is ~1.5 inches to the negative with Z start set at 0 and in the other wizard the Z starts at 0 with the Z start set to 0?
Can you see that in the tool path window?  Every time I go to run the program it retreats in Z- and hits the limit switch.  Well into my part, not at the face?

Wait a minute- which way do you have Z moving? A positive Z move is toward the tailstock. Moves into the work are in Z negative direction. That is the established G code convention. Note the wizards safe Z move is to Z 1.5 (positive). That is toward the tailstock, away from the work.

Offline BertL

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Re: NFS Turn Wizard
« Reply #208 on: February 26, 2015, 04:14:20 PM »
Hi Ron,

I've been using Mach3 Mill for years and just downloaded NFS Turn Wizard .08.  Watched the tutor video and getting familiar with the program.  I don't seem to get Gcode generated for peck-pause or peck-retract Drill.  It will only generate for Continous.  What am I missing?  Attached is sample file.

(***New Turn File Started***)
(by Demo NFS Turn V.06)
(2/26/2015 3:31:17 PM)
(user supplied init code)
G18 G54 G40 G49 G90 G94 G80


(***New Tool Selected***)
( Unnamed tool)
G00 Z 1.5
G00 x 1
M6 T101
M3 S 800
G01 F 1
(***Drill***)
(Zsafe= 1 Zstart=0 Zend=-0.375)
(Peck-retract cycle)
(Peck= 0.02Retract= 0.1 )
G00 Z 1
G00 X 0
G00 Z 0
G01 Z -0.375
G00 Z 1
(***File Ended***)
(2/26/2015 3:44:25 PM)
M5
M9
(user supplied end code)
M05
M30
(Wizard Exit)

thanks for input,
Bert

Offline Ron Ginger

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Re: NFS Turn Wizard
« Reply #209 on: February 26, 2015, 09:07:05 PM »
You are not missing anything, I  was. A misplaced ) in the code.

I have posted an update to the first topic in this section