Messages

21

General Mach Discussion / Circle not circle but oval - no backlash on the axis, steps per unit set OK,...

« on: November 08, 2020, 06:26:30 AM »

I have read a lot of posts about circle cutting - no circle but oval, and checked and tried many suggestions but no success.

My machine still doesn’t cut correct circle.

1.  X and Y backlash les than 0,03mm
2.  Steps per unit equal to both axis - the same ratio between AC servo motor and ball screw
3. Following error on both axis during circle cutting near 0 - there are 750W AC servos on light machine - over dimensioned motors.
4. Acceleration/deceleration equal to both axis.
5. When cutting square 100 x 100 mm, both dimensions are in +/- 0,02mm
6. Circle dimension in X and Y axis is also 100mm +/-0,02mm (when cutting circle 100mm)
7. The difference in diameter measured in 45° and - 45° is 0,6mm
8. By cutting circle in CCW or CW direction, diameter difference in 45°and -45° remain the same but vice-versa.
9 Cutting speed doesn’t change result - cutting 150mm/min or 1500 mm/min. gives the same result.
10. I'm using LPT BB

I have no idea what else I can do to solve this issue.
Any suggestion appreciated…

22

General Mach Discussion / Re: mach3 turn spindle dro not working, spindle speed changing while jogging

« on: September 26, 2020, 02:35:25 PM »

Unfortunately LPT is not an option... my laptop doesnt have this port 

Is there any option to get index working on NVUM-V2?

Did anybody succeed to get threading with NVUM-V2?

Thanks

23

General Mach Discussion / Re: mach3 turn spindle dro not working, spindle speed changing while jogging

« on: September 23, 2020, 02:35:39 PM »

Inductive PNP switch

Connection between PC and hardware is through NVUM V2
I have found few posts about this board and unfortunately the information are not good - it seems this board is a sh*t.

In the next days I will try with standard LPT breakout board.

24

General Mach Discussion / Re: mach3 turn spindle dro not working, spindle speed changing while jogging

« on: September 19, 2020, 07:27:34 AM »

Hi

I have read this topic few times but I cant solve problem with spindle speed DRO on my lathe.
Index LED works on the diagnostic screen. Spindle relays are enabled, spindle feedback in Sync. modes enabled,
tried different settings of Index debounce (0- 300), M3 command to run spindle....NOTHING

Spindle true speed starts at S-command value and goes slowly to 0 and stay there...

I would really need index - true spindle speed for threading...

Could someone help with some new suggestion?

Thanks

Andrej

25

General Mach Discussion / Re: G0 Feedrate is not on maximum

« on: August 31, 2015, 03:47:04 AM »

Hello

Anyone with the same problems?

Any suggestions to resolve the problem?

Thanx!

26

VB and the development of wizards / Re: Wizard "Save as..." and "Load"

« on: August 04, 2015, 12:39:22 AM »

How I have to recode wizard?
I dont understand your suggestion.

Is there any command for save?

Where all data from wizard are saved?

27

VB and the development of wizards / Re: Wizard "Save as..." and "Load"

« on: August 03, 2015, 11:47:03 AM »

Yes, Iknow that.
But it is possible to save not only last one?
For example:
I fill in data for pocket nr.1 and generate G-code
Day after I fill in data for pocket nr.2.....
Day three....I want to call back wizard with data "Pocket nr.1"

It's possible  something like this?

28

VB and the development of wizards / Wizard "Save as..." and "Load"

« on: August 03, 2015, 10:04:31 AM »

Hi

Is there a possibility to store the data entered in a wizard under different names in order to  be loaded  back later  and taken a small correction
(not only last entered data)?
I know that the G-code can be saved under different names, but if  later I want to change something I have to write  back all  the parameters in the wizard and generate G-code again.
G-code is probably not possible to convert back into wizard DROs...?

Example:

Load wizard - Circular Pocket

Enter all necessary data...
Save entered data As....
Generate G-code
....
....
....

Load some saved data into Wizard (not only last one)
Make  corrections...


Hope I was clear enough to get some advice...

29

General Mach Discussion / Re: G0 Feedrate is not on maximum

« on: June 22, 2015, 01:22:22 PM »

I'm still not able to find the cause of the slow moving ... unfortunately 

30

General Mach Discussion / Re: G0 Feedrate is not on maximum

« on: June 16, 2015, 03:51:04 PM »

No, is set on 100%
Rapid override is working properly.

F is always 1000 (when caled G0)
FRO is changing if I change rapid override but always   1000 * rapid override (%)