Messages

301

General Mach Discussion / Re: Threading Wizard HELP -- Simple I think goes to wrong point.

« on: June 12, 2009, 11:53:31 PM »

Well the problem I'm having is the difference between using a full profile ER16 Insert or a partial profile ER16 insert. I'm doing a custom thread that's 1.77 OD for the bolt and 32 TPI, so I'm using 32 TPI specs. The problem is the bolt thread depth is .0192", but what's confusing is I asssume that's for a full profile cut. If I'm using a partial profile I'm supposed to leave a small flat on top, but that doesn't tell me how deep I should go.

302

General Mach Discussion / Re: Threading Wizard HELP -- Simple I think goes to wrong point.

« on: June 12, 2009, 10:05:24 PM »

Thanks. I got it working, now the problem is understanding threading...so frustrating.

303

General Mach Discussion / Re: Threading Wizard HELP -- Simple I think goes to wrong point.

« on: June 12, 2009, 07:23:36 PM »

No, I don't home it...OH, how can I get rid of that, I don't have limit switches on my machine?

304

General Mach Discussion / Threading Wizard HELP -- Simple I think goes to wrong point.

« on: June 12, 2009, 07:02:37 PM »

OK, so I'm sure it's been covered but I can't find it.

I'm using the threading wizard in Mach 3.042 and when I go to run it, it move the carriage past the physical limts in the X6" and Z6" range. I have no idea why it's doing that and it crashes my carriage. The G code doesn't mention these coordinates so it must be some code. Please help. It does it for the first move.

Here's the code, oh I don't have any offsets set whatso ever I just zero the tool to the right coordinates. And I'm working in Inches. Oh and another thing the only werid setting I have is the IJ mode is set to absolute instead of incremental for my Dolphin CAM. Thanks.

G0 G40 G18 G80 G50 G90
G00 G53 X0.1 Z0.1
T202M6
G00  X1.795
G00 Z0.5
G00 X1.77
M03 S1000
M08
G76 X1.7316 Z-1 Q4 P0.03125 J0.001 L45 H0.01 I29 C0.025 B0.0001 T0
M9
M5
M30

305

General Mach Discussion / Re: Newbie need help with Lathe

« on: June 08, 2009, 03:09:21 AM »

I was wondering if someone can explain what changing the IJ Mode from Inc. to Absolute does in comparision to unchecking the "Reverse Arc's In Front Post".

I was getting the crop circles too and swithced from Inc. to Absolute, but being anal I want to know what the difference is? Basically I don't know what "reversed arc's in front post" is? Thanks.

306

General Mach Discussion / Re: Spindle Index RPM not Matching Actual RPMs HELP

« on: May 26, 2009, 11:16:04 PM »

I reread the short paper on installation and it mentions the debounce setting. When you goto the Gen. Config page there is a separate setting for Index Debounce. It was originally set at 100 but I kept knocking it down until it worked. Mine worked from 10 to 30, I left it at 30 now it reads correct. Thanks for all the help.

307

General Mach Discussion / Re: Spindle Index RPM not Matching Actual RPMs HELP

« on: May 26, 2009, 09:12:52 PM »

Ok I increased the slot to 1/2" and at 2000 RPM it still only reads 670 RPM. At that rate the slot would need to be 1" or bigger. I think it must be a setting thing.

308

General Mach Discussion / Re: Spindle Index RPM not Matching Actual RPMs HELP

« on: May 26, 2009, 08:46:35 PM »

Ok, I'm not sure I understand the math, but I appreciate the help. Peter what should I widen it to?

309

General Mach Discussion / Re: Spindle Index RPM not Matching Actual RPMs HELP

« on: May 26, 2009, 07:58:18 PM »

The sensor i'm using is the C3 Pulse Index Board from CNC4PC which is made for this, so I hope it's not the latter. If you're not positive about the slot size then I don't want to make it bigger without more help, but thanks so far.

310

General Mach Discussion / Spindle Index RPM not Matching Actual RPMs HELP

« on: May 26, 2009, 07:12:45 PM »

So I've finally got my 9x20 lathe CNC conversion done. I set up the spindle index but it doesn't regist the True RPMs. At 200 RPMs it reads 200 RPMS, at 2000 it reads 270 or so. What is the problem.

I'm using a 2 7/8" diameter disc with a .125" wide slot. Is the slot too wide or too narrow, could that be the problem? Any help would be apprecaited, thanks.