Messages

5861

General Mach Discussion / Re: Help with setup of driver and breakout board?

« on: November 10, 2011, 11:52:39 AM »

Hi Pog, looking at your photos you have it wired wrong.

In Mach Config / Ports & Pins / Motor outputs set X step Pin#2, Dir Pin#3 ; Y step Pin#4, Dir Pin#5 ; Z step Pin#6, Dir Pin#7 and set these active low then on your breakout board P2 will be X axis Step and P3 will be X axis Direction and so on.
P2 (X step) will connect to your driver PUL-  and P3 (X dir) will connect to your driver DIR-  and so on.
Your breakout board needs it's own + 5Volt and GND supply connection.
As far as I can tell the controller enable is left unconnected as is PUL+5 and DIR+5
Make sure your steppers are connected correctly before trying anything out (incorrect connection of steppers can be fatal to the controller).

Hope this helps.

Tweakie.

5862

Show"N"Tell ( What you have made with your CNC machine.) / Re: Flaming Brass Dragon pen

« on: November 09, 2011, 08:49:44 AM »

Excellent work my friend.
You may have just given away a trade secret there with Silmar 41 and silver eye shadow. 

Tweakie.

5863

Tangent Corner / Re: Homebuilt planes

« on: November 09, 2011, 07:10:47 AM »

Would you believe this  http://www.youtube.com/watch?v=L75ESD9PBOw&feature=player_embedded
This man has real courage.

Tweakie.

5864

General Mach Discussion / Re: JOG quality better than code movement

« on: November 09, 2011, 04:47:04 AM »

Sorry, I didn't explain very well what I was meaning.

Keyboard Jog is at the % rate set in slow jog.

MDI jog or G00 is at the full 100% rate.

Still not sure if I have explained what is in my head. 

Tweakie.

5865

Tangent Corner / Re: Homebuilt planes

« on: November 09, 2011, 02:24:43 AM »

Hi Fernando,

Sorry but I forgot to mention that George Race is a member of this forum so you could PM him for his input.

Tweakie.

5866

FAQs / Re: Axis Limits in Toolpath screen

« on: November 09, 2011, 02:20:25 AM »

However, during a program cut, the brushes on my Porter Cable Router bit the dust. Does anyone know of a local supplier for the 869659 Porter Cable motor brushes? As I understand it, that part number is a generic part number which replaced the original Porter Cable part no31652. Any suggestions?

Sorry to hear that your spindle expired, but this is bit of an international forum so where are you located.

Tweakie.


nb. (This reminds me of a very old Tommy Cooper joke....
Man phones swimming pool and asks if he has got through to the local swimming pool. Reply was "It depends where you are calling from")

5867

General Mach Discussion / Re: JOG quality better than code movement

« on: November 08, 2011, 10:04:37 AM »

If your slow jog rate is set to less than 100% could this have a similar effect ??

Tweakie.

5868

General Mach Discussion / Re: no jog

« on: November 08, 2011, 04:24:03 AM »

Hi Lou,

Welcome to the forum.

It sounds to me like your motor tuning may need adjustment.
In Config / Motor tuning - set your velocity to something like 1000 mm/min and use the up/down arrow keys to test the setting. if it then works, save the setting and proceed to the next axis.
Once all axis are working then you can fine tune the Velocity and Acceleration settings of each axis for best performance / reliability.

Hope this helps.

Tweakie.

5869

Tangent Corner / Re: Homebuilt planes

« on: November 07, 2011, 11:17:53 AM »

Hi Fernando,

The Burt Rutan planes are something else and always seem to explore the edges of known technology and science - I think you would be taking on a lot to attempt to follow his lead without having expert aerodynamic knowledge.

A guy who would be good to talk to is George Race - His homebuilt Zenith CH-701 was just expertly constructed, he also documented the build with lots of photos and comments etc. What he doesn't know about homebuild is probably not worth knowing. 
http://www.mrrace.com/index.htm

Tweakie.

5870

General Mach Discussion / Re: Mach3 vs NC-studio

« on: November 07, 2011, 04:44:10 AM »

Thanks, I think I understand what you have done now.

Tweakie.