Messages

3751

General Mach Discussion / Re: MISSING STEPS HCIR

« on: February 27, 2011, 05:29:53 PM »

Hood,
Tried values from 20 to the recommended 200 still not reliable.

I will explore using my lathe ( by modifying the code for X and Z ) as it is very accurate and can run at higher feedrates reliably.
It could be a machine problem, ie; motor/use higher amp settings, the skipping is a real bear as you don't even hear it happen....can feel it if you keep you hand on the motor.

RICH

3752

General Mach Discussion / Re: Desk cnc with mach 3

« on: February 27, 2011, 05:18:47 PM »

blake,
I have deskcnc but have not used it in a long long time. I don't know if Fred will entertain your question on the IMS forum but worth a try.
Not sure if you still need to pay $60 a year to post on it's forum.
I think there are a few others that use deskcnc and may be abe to relate if there are any quirks.
RICH

3753

General Mach Discussion / Re: Turn wizards not working properly

« on: February 27, 2011, 05:09:59 PM »

Kerry,
Not really, maybe someone else will reply.
RICH

3754

General Mach Discussion / MISSING STEPS HCIR

« on: February 27, 2011, 04:57:48 PM »

Having a problem with missing steps. Figured I would post and seek suggestions.
The complete program code has numerous use of the example problematic code. It is repeated in a simillar
fashion throughout the program.The attached code is just an example  which  may cause skipping ( X axis only).
 I can only run the code reliably at 10 IPM. The mill is very reliable to 80 IPM.  Matters not if run in Cv or exact stop mode.
The code provides small combination X &Z moves. I don't mind running the code at a slow  feedrate for finishing but need to up the IPM
to save hours on the pieces to be done.

N3663X-1.650Z-0.087
N3664X-1.652Z-0.086
N3665X-1.654Z-0.086
N3666X-1.655Z-0.085
N3667X-1.658Z-0.085
N3668X-1.661Z-0.084
N3669X-1.662Z-0.084
N3670X-1.664Z-0.084
N3671X-1.673Z-0.084
N3672X-1.680Z-0.084
N3673X-1.685Z-0.083
N3674X-1.691Z-0.083
N3675X-1.692Z-0.083
N3676X-1.696Z-0.082
N3677X-1.699Z-0.081
N3678X-1.701Z-0.080
N3679X-1.705Z-0.079
N3680X-1.708Z-0.077
N3681X-1.712Z-0.076
N3682X-1.715Z-0.074
N3683X-1.719Z-0.073
N3684X-1.722Z-0.072
N3685X-1.726Z-0.070
N3686X-1.728Z-0.070
N3687X-1.729Z-0.069
N3688X-1.733Z-0.069
N3689X-1.737Z-0.068
N3690X-1.740Z-0.067
N3691X-1.744Z-0.066
N3692X-1.747Z-0.066
N3693X-1.751Z-0.066
N3694X-1.754Z-0.065

 So any thoughts on the above ie; increase kernel speed .............?

The attached pics show the pathing , GREEN LINES, which will be used for testing by doing loops.
RICH

3755

General Mach Discussion / Re: Turn wizards not working properly

« on: February 27, 2011, 06:40:54 AM »

Kerry,
Make sure your mouse cursor is in the field when you hit the return key.
I just tried the ID wizard in both diameter and radius mode and works fine here.
RICH

3756

General Mach Discussion / Re: Programing M3 to take out error of Mill xy not being sqaure

« on: February 26, 2011, 05:43:44 PM »

Bruce,
You shoould first check to see if the machines  X & Y axis are perpendicular to each other. Also check the gibs are adjusted.

As single clamp in the middle of the plate may allow the Al plate to move when machining so make sure that is not the case.

If the machines axis are correct and the bolt is holding down the plate then you should be able to machine it square.

How much was it out?

3757

Forum suggestions and report forum problems. / Re: code wanders off, but only sometimes...

« on: February 26, 2011, 06:29:45 AM »

Spinnetti,

I simulated the code in Mach that you posted and did not see any problems with it at all. It did not "wander off" in Mach.
Attached pic of a backplot of the code and  Mach screen.
Now if you are "wondering off" when actualy cutting the piece that is a very different problem.
It can be computer, machine, or controller related, but will guess  if using  steppers they are  skipping causing you to loose position.
Can't explain much more without more info on what is happening.

So what was your work around?

RICH

3758

General Mach Discussion / Re: Denford Micromill 2000, Denford Microlathe

« on: February 26, 2011, 05:59:33 AM »

From what i can see in some pictures of the Micromill it is nothing more than a Sherline with steppers put in an enclosure.
I would suggest you modify the existing or make a new controller. Should be able to reuse most components, but see what the power supply is capable of and purchase new drives.
RICH

3759

General Mach Discussion / Re: Correcting Step error

« on: February 25, 2011, 08:49:00 PM »

problem I have is GAINING steps or length

In MAch3 you can do an axis calibration which you will find in the settings tab ( lower left hand corner of the screen)

 

Some one also mentioned a different board that could be dropped in so I could use mach 3

Mach3  provides step and direction signals via a PP or an external device like the SmoothStepper to your drives.

What controlling software are you using now? Are you using Mach?

RICH

3760

LazyCam (Beta) / Re: AutoCAD and LazyCam

« on: February 25, 2011, 08:40:38 PM »

Is there any other controller software that I could try with a Gecko G540?

Yes, but then why try something which will be inferior? 

I like MACH3 but it seems kinda complicated for the most part

So are the others ........since you'll need to do similar configuration.

RICH