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Messages - Tweakie.CNC

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1651
FAQs / Re: +1mm -.99mm?
« on: March 13, 2017, 06:38:58 AM »
Hi Mick,

Welcome to the forum.

Could it be that you are loosing steps ?

Try reducing your Velocity and Acceleration settings (in Motor Tuning) by 50%, saving the changes, and see if the problem persists.

What happen if you cycle longer movements (say 100mm) ?

Tweakie.

1652
General Mach Discussion / Re: Font Islands
« on: March 13, 2017, 06:32:47 AM »
Check out F-Engrave. It is free and the video on inlay describes the type of engraving you are describing http://www.scorchworks.com/Fengrave/fengrave.html

Tweakie.

1653
Spanish / Re: maquina corta con unas decimas de error
« on: March 13, 2017, 04:42:46 AM »
Check your machine mechanicals for loose coupling, loose grub screw, etc. and also axis backlash (ballscrew, thrust bearing)
Check for tool flex.

Reduce your X and Y axes Acceleration to 300, save the changes and do another test run – is the error still there ?

Tweakie.

1654
Mach3 under Vista / Re: Mach3 G41/G42 G68 will it ever get fixed?
« on: March 13, 2017, 04:28:24 AM »
Hi Col,

Welcome to the forum.

Quote
Given that it's not free software, will it EVER get fixed?

There is no further development of Mach3
( also - There are a number of functions that are limited when Mach3 is operated in Demo mode ).

Quote
and if not is it properly and fully implemented on Mach 4?

I have never tried it but if it's not fully implemented then it will be

Quote
and if so it is true that instead of running on an old PC through a parallel port I'd need to buy and fit a 3rd party add on card to my 4030 contoller?

There is a Mach4 legacy parallel port plugin but there are Win OS requirements http://www.machsupport.com/shop/parallel-port-legacy-plugin-for-mach4/

A motion controller (such as the Warp9 ESS but there are many different makes available to choose from) is, I think, the best option when using Mach4

Quote
That seems like a whole lot of unnecessary trouble and expense to go to for complete home NC novice to have to put himslef through just to get cutter comp that works.

Maybe

Tweakie.

1655
General Mach Discussion / Re: Mill problem?? Having a crazy jitter
« on: March 11, 2017, 02:16:52 AM »
Hi Zach,

When you are ready to purchase a genuine Mach3 license I recommend you buy direct from Artsoft  http://www.machsupport.com/shop/mach3/
(recently, one of the authorized distributors has been identified as peddling fake licenses).

Tweakie.

1656
Can you perhaps give us more details about your machine and the motion controller you are using ?

Tweakie.

1657
Hi Skatcat,

Check that you have actually released the EStop switch and it is working OK (there have been reports of an internal plastic clip which is factory fitted to prevent the EStop releasing - if this is the case then the clip has to be removed).

Sounds hard but my best recommendation is that you seriously consider replacing that T-D controller with a Gecko G540 http://www.geckodrive.com/geckodrive-step-motor-drives/g540.html
Also check out the Support pages on the Gecko site - their products are tip-top and the customer backup services are second to none.

Tweakie.

1658
General Mach Discussion / Re: Mac3 software
« on: March 09, 2017, 08:11:32 AM »
Sounds like a bad install.

Try re-installing Mach3 (version R3.043.062 would be best) and see if that cures the problem.

Tweakie.

1659
General Mach Discussion / Re: Mill problem?? Having a crazy jitter
« on: March 09, 2017, 05:47:40 AM »
From your earlier posts I assume you are still using the RnR USB motion controller. From another member’s tests it has been shown that the Direction signal from this board is not persistent but is resent following a break in the Step signal train. Your stepper glitch is indicating such a break in the data stream and that could explain it running backwards slightly then correcting itself.
This is not a Mach3 problem per say but your PC could be interrupting the data stream by carrying out other tasks as may be associated with power saving features (allowing USB devices to power down, screensaver, hard drive power down, etc., etc.). It could also be associated with electrical noise spikes etc. Fitting clip-on ferrites at each end of the USB cable between the PC and the RnR may help.
What bugs me is that this glitch is happening in more or less the same place and that I just can’t explain or understand but I will keep digging.

Tweakie.

1660
General Mach Discussion / Re: sudden onset of Stepper stalling
« on: March 09, 2017, 02:11:54 AM »
It's only a guess but check the case temperature of your Z axis stepper motor when this problem happens.
Just as a guide it should run at around 60 deg. C   If it is lower than this then you could try increasing your drive current by one setting.

Tweakie.

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