Messages

1

Mach3 under Vista / Problem with Feed rate in Win7 32 Bits

« on: July 25, 2016, 11:44:31 AM »

I have observed a strange problem while migrating my Mach3 program from win xp machine to Win7 32 bit machine. If I give a command G01 X 100.0 F 100, what I get actually is a feed of 84 in place of commanded 100 mm/min. I have observed the same condition, while trying mach3 demo with win7 32 bit laptop. This happens with mill or turn equally.
The same program runs just fine with win xp machine. If i give a feed override of 120%, the feed attains nearly 100.8
Can some one point any reason for this kind of behavior?

Best Regards,
M Vyas

2

SmoothStepper USB / Re: Trouble with smooth stepper

« on: October 13, 2012, 11:40:26 AM »

Jeff,
Thanks for the information.
Strangely I get pretty stable RPM on DRO at 348 RPM +/- 1 . Also there is almost no change in RPM while cutting. Cutting depth is about just 0.1 MM  per pass so that should not be a problem. As I have pointed, I have set my Encoder input with " Spindle Index Prescale" =1000 as shown in SS Plugin setup. But when I undertake multipass threads, the pitch drifts and at the end of several passes say 20, it is hard to find clear threads..
I have a VFD connected to spindle running at full RPM. I will try to see if noice is my issue. But in that case, I should not be getting a stable RPM on DRO. Suggestions are requested.
M Vyas.

3

SmoothStepper USB / Re: Trouble with smooth stepper

« on: October 13, 2012, 10:29:19 AM »

Hood,
Thanks for the clarity. I will try the setup tomorrow and post it here after confimation.

4

SmoothStepper USB / Re: Trouble with smooth stepper

« on: October 13, 2012, 07:40:19 AM »

Hood,
Thanks for the reply. But I fail to understand that while using Encoder with SS, there are three phased available A /B /Z . While A and B give pulses 1000 Times a revolution for a 1000 PPR encoder like mine while Z  gives only one per revolution. Now, if I am supposed to use only Z, for one PPR, why go for encoder and not go for simple sensor fitted over spindle like Inductive Proximity Sensor?

Also it is strange that while it has a dedicated encoder port available all the A/B /Z inputs, it just takes Z as index. This will surely not give best result as compared to if done with 1000 PPR Phase A or B.

So,if  it is confirmed that I have use only one pulse per revolution, then what is meaning of the SS setup parameter Encoder Multiplier or something like that..
M Vyas

5

SmoothStepper USB / Re: Trouble with smooth stepper

« on: October 12, 2012, 11:09:33 PM »

Jeff,
Thanks for the reply.
I understand that SS gives much better performance in threading just because Mach with PP sees the index just once a revolution and hence slow to respond with spindle speed variations, while SS can take index as encoder inputs and hence quick to respond and gives accurate threads.
Also I get RPM indications very well accurate. I also get started well with the pitch but as the passed increase, threads get overlapped.
And I fail to understand the use of encoder at spindle if you are supposed to use just Z phase instead of total PPR. Please clarify. I am a lot confused.
Also there is given a parameter as Encoder index multiplier up to 4098 pulses in the SS configuration menu. I have set this as 1000 because my encoder is 1000 PPR and it gives me fairly accurate RPM on the DRO.
Please clarify. Someone using encoder practically may respond.
M Vyas

6

SmoothStepper USB / Re: Trouble with smooth stepper

« on: October 12, 2012, 03:48:29 PM »

Hi Experts,
I also have been facing the same problem of pitch variations in threading with SS. Strangely I am not able to find any clear guidelines about interfacing encoder for threading with SS Manual. I am not clear how the encoder should be connected to SS card. Should all A B and Z be connected in port3 which has encoder input. Should only A or B be connected and configured as Index or timer input.
I have connected 'A' phase of 1000 PPR encoder to port 2 input of SS and configured it as index. I get a steady RPM indication at 348 RPM. But when tried to thread with wizard code for rod dia of 28 mm and thread length of 60 mm, depth of thread as 2 mm, I get a 20 pass code. When the program is run, threads are not matching and instead of a clean thread of 2 mm depth, I get a roughly turned part due to overlapped threads.
I am attaching my XML and Prog files. Please advise.

7

VB and the development of wizards / Re: Remembering LED and DRO status

« on: August 26, 2012, 07:42:48 AM »

Ger,
Thanks for the answer.
It is not always like that mach3 is shutting down abnormally. But I need to take care of any entualities. Also there is a possibility of power failure.
Mahesh Vyas

8

VB and the development of wizards / Re: Remembering LED and DRO status

« on: August 26, 2012, 03:08:36 AM »

Hello,
Because this is comparatively new discussion, I am adding my query here.
I have made an UserDro No 1111
I am able to use it and manipulate it for some works like parts count etc. But I want to be save immediately after a new value is entered by VB Script or some OEM Code. Because when MAch3 Shuts down abnormally it loses all the updated values from the start.
Please suggest a way around.
Mahesh Vyas

9

General Mach Discussion / X,Y,Z Axis slowing down with A axis as tagential.

« on: May 22, 2011, 11:39:39 AM »

Hello Forum,
I am trying to use Mach3 for Router Control with A axis having tangential control. If I use it that way, all my rest of the axis are slowing down when negotiating a non circular profile. And A axis also moves hasitatingly though not missing any steps. If I roate A axis alone, it works fine. Is there a way to sort this problem?
Mahesh Vyas.

10

Third party software and hardware support forums. / Plazma CAM Software with Nesting.

« on: May 22, 2011, 11:09:14 AM »

Friends,
 I Intend to use Mach3 for Plasma Cutting. I am looking for suitable CAM software for CAD to G CODE Conversion having nesting capabilities. I am not able to find any nesting capability with Lazy Cam. I need to confirm if this is really so.
Also I request some experienced Plasma users to suggest some third party software  having nesting capability and compatible with Mach3.
I also have another problem while using Lazy Cam for Plasma. For touch down, Lazy cam gives G28.1 Axis Ref. command and then places Z0 in the next line, which fails to initiate Ref. Home command. If this Z0 is placed in the same line as G28.1, it does the referencing well. So, is there some thing I am missing? Is there a way to place Z0 in the same line, or make G28.1 operate having found z0 in the next line?
Please advise.
Mahesh Vyas.