Messages

8041

General Mach Discussion / Re: Motor Tuning / Different Computers - Same Machine

« on: July 13, 2010, 01:05:39 PM »

Tulsaturbo,

As Hood has said 'steps are steps' and these are calculated from the relevant axis motor steps, lead screw pitch, micro step setting and any gearing used - they have no changing relationship with the computer that is used.

Tweakie.

8042

General Mach Discussion / Re: Drifting X-axis, making step ladders one side whereas other side is smooth- SOS

« on: July 13, 2010, 11:03:58 AM »

Hi Khalid,

It is possible that the arcing has caused a problem with the driver for your X Axis. (Possibility - an arc produces so much energy that this could easily be translated into false step pulses by a driver).
Have you now replaced the damaged connector pin / socket and tried it again ?.

Tweakie.

8043

General Mach Discussion / Tormach CNC Scan.

« on: July 12, 2010, 01:37:10 PM »

Has anyone tried the Tormach CNC Scan plugin and what kind of results did you get please ?.

http://www.tormach.com/blog/?p=1038

Tweakie.

8044

FAQs / Re: Step and Dir signals

« on: July 12, 2010, 08:33:05 AM »

Hi John,

Excellent explanation you have given there.

It is not really meaningful to talk about these signals as having active levels since they are doing something whatever level they are.
where the sense of the signal can be active low or active high is arbitrary but the ability to swap the sense can be useful for testing

Not quite sure about this bit though. The terms "active high" or "active low" are meaningful to me and are understood by Mach3 when it comes to setting everything up. 

Tweakie.

8045

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: July 11, 2010, 11:22:28 AM »

I came across this neat little program last week - It is just so simple I had to make some little boxes. My congratulations Rahul.

http://rahulbotics.com/personal-projects/boxmaker/

Tweakie.

8046

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: July 10, 2010, 11:16:25 AM »

Thanks Chris.

Protein stains........ Where I grew up we called them skid marks. 

Tweakie.

8047

General Mach Discussion / Re: Drifting X-axis, making step ladders one side whereas other side is smooth- SOS

« on: July 10, 2010, 07:02:58 AM »

Hi Khalid,

No much help really but I had a similar problem, long while back, where one axis only was gaining steps. These gained steps were produced from noise spikes which were treated by the controller as a genuine step pulse. Although they were random they were pretty consistent and my problem was finally solved by fitting another, better quality, breakout board which managed to filter out the extremely fast noise spikes.
Although it is unlikely to be the same problem I would suggest that you look for electrical noise as a cause of this event.

Tweakie.

8048

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: July 10, 2010, 06:44:29 AM »

Thanks again Chris, now I know why some of your wax photos have water droplets on the surface. 
I will look out for one of those blaster's 'second user' (I'm 3rd generation related to Mr Scrooge also).

Tweakie.

8049

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: July 10, 2010, 05:15:29 AM »

Thanks Chris.
One more, perhaps silly question. What is the best way to remove the wax chippings off the finished work ?. (the tiny bits of wax seem to stick to my stuff).

Tweakie.

8050

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: July 10, 2010, 04:31:23 AM »

Looks easy Chris. 

Can you make your own wax for this fixture or do you have to buy the ready made blanks ?.

Tweakie.