Messages

1

General Mach Discussion / Re: Increasing feedrate when threading

« on: November 05, 2013, 01:23:47 PM »

Hi!

I tried to install a later version of Mach3 but it did not work so I decided to remove all Mach3 files on the computer (I dit remember to backup my .xml files and licensefiles  ).
I installed the newest version (the one I had from start) and now it works perfect again. I have not installed some plugins that I need yet but I will do that soon and see if the problem returns, hopefully not...

Thank you all for your help .

Regards
  Per

2

General Mach Discussion / Re: Increasing feedrate when threading

« on: November 03, 2013, 03:15:16 PM »

Hood,

I do not have any VFD. I will try another version tomorrow.
I will post my progress in this.

Regards
  Per

3

General Mach Discussion / Re: Increasing feedrate when threading

« on: November 03, 2013, 01:43:57 PM »

Rich,

I have read your Threading on The Lathe pdf.file, very good Reading, thank you!
I am using version R3.043.066.

Yes I click on the calculate button and the feedrate is within range.

The rpm DRO is steady on 227 rpm all the time.

The thing is that everything was working perfectly for a couple of months ago, this is a bit frustrating.

I attached the files.

Per

4

General Mach Discussion / Increasing feedrate when threading

« on: November 03, 2013, 11:05:45 AM »

Hi!

I am having a problem when I am cutting threads on my lathe.

I have been using the lathe threading wizard and it has worked perfectly.
I build myself a new cnc-case with new Gecko drivers and all the electronics etc. and now I am running into a big problem.

I am cutting an 1 mm thread and the first pass goes smoothly at 1 mm / revolution. The machine goes to the start again but the second, third...  pass is at 2.11 mm / revolution?

Could it be an index problem? I have steady readings from the sensor to Mach.

Regards
  Per

5

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 20, 2012, 05:01:06 PM »

Hi!

I have tried alot of differnt threads now and they are getting better and better . I tried lower Index Debounce numbers and I think that was a good thing for my equipment.
But if a do a long thread, 50mm with 1.5mm pitch, the first 20-30 mm will be perfect but the rest can be a bit off. The pitch seems a be increasing towards the end om the thread...
Any good suggestions for this?

Per

6

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 15, 2012, 02:33:20 PM »

Thank you for that info . I will try this tomorrow... I will post some results here.

Thank you for all your help here the last couple of days, I really appreciate if.

Per

7

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 15, 2012, 02:14:47 PM »

Ok, I will try the lockdown version tomorrow.

No I have not tried that, I am not sure what the Index Debounce is / does?

8

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 15, 2012, 12:41:44 PM »

I installed the Mach3 R3.043.062 Development version yesterday. Maybe it is better with the Lockdown version?
I will do some more testing with the threads tomorrow.

Ok, thank you for the info, I was not sure about the 440 value.

9

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 15, 2012, 10:54:42 AM »

Hi!

I changed the active state for the index LED and it worked, finally ...

I tried to make a 1mm thread but it did not turned out perfect. When I measured the thread it seems like it is 0.9 mm.

This is the code from the wizard.
G0 G40 G18 G80 G50 G90
G00 G53 X0 Z0
T202M6
G00 X37
G00 Z2
G00 X36
M03 S440
M08
G76 X35 Z-12 Q1 P1 J0.006 L45 H0.4 I29 C1 B0.0001 T0
M9
M5
M30

When I press the "Calc number of passes button" it tells me that:
Axis will move 440 UPM and will Accel in 0.5378Units". I am not sure what that means? Does this seems right at all?

Per

10

General Mach Discussion / Re: C3 - Index Pulse Card

« on: July 14, 2012, 10:58:45 AM »

Yes the Index LED is turned on and turns off when the spindle reaches the hole on the mounted disc on the spindle.
I start the code with M3 S440.

But another thing is wierd. I turned off my spindle when the G76 code was running and when S true value was about 230 the G76 cycle started... Can the speed be to high?