Messages

7601

General Mach Discussion / Re: Current release not compatable with year old machine

« on: September 18, 2010, 06:54:50 AM »

Wade,

This sounds really weird as I have updated to the latest lock-down versions, as they become available, and not had any issues at all.

Perhaps someone may be able to suggest a possible reason for your problem and I for one would be most interested in the outcome.

Tweakie.

7602

*****VIDEOS***** / Re: Laser Raster Engraving.

« on: September 18, 2010, 05:51:39 AM »

Andrea,

Yes Sir, it is Art's DLL.

Tweakie.

7603

Show"N"Tell ( Your Machines) / Re: Our 2440 x 1220mm CnC Router Builds

« on: September 16, 2010, 03:23:41 AM »

Hi Guys,

Your workmanship is truly remarkable.
One thing which you haven't mentioned here, which I think is absolutely amazing, is that you cut down one side of all the (black painted) 2 1/2" angle, ground the top surface flat and then ground the 'V' rails all with a hand held Bosh angle grinder. OK, I know you used a homemade jig but it is still a monumental task to complete.
You Guys have my total admiration.

Can't wait to see your pictures of the Roadrunner.  

Tweakie.

7604

General Mach Discussion / Re: How do you move axis A in direction of XY route?

« on: September 15, 2010, 11:44:51 AM »

Adamk,

If you do a search for 'tangential knife' you will find a lot of helpful info on the forum.

Tweakie.

7605

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

« on: September 15, 2010, 11:20:41 AM »

Dave,

Depth is difficult to tell with the Traffolite probably 0.2mm but it has gone between 1mm and 1.5mm into the Obechi.
Under normal circumstances the depth can be controlled by altering the power setting or changing the feedrate but this was done with the Engraving / Laser plugin and that links power/feedrate beyond my control so depth is whatever Mach decides it is.
I keep thinking I will break out my old C++ books and give the Engraving/Laser plugin a good talking too but you know what it is like - where does the time go ?.

Tweakie.

7606

General Mach Discussion / Re: help with motor torque

« on: September 15, 2010, 09:46:08 AM »

Good luck, hope it works OK.

As Hood said too high a current will cause too much heat in the motors so keep checking they are not running too hot to comfortably hold your hand on.

Tweakie.

7607

General Mach Discussion / Re: help with motor torque

« on: September 15, 2010, 09:03:58 AM »

Your current settings are dip switches 1 & 2 as follows :-


setting      1          2

100%       on       on
75%         on       off
50%         off       off


You would be wise to look up your motors maximum current rating as specified by the manufacturer.

Tweakie.
 

7608

*****VIDEOS***** / Laser Raster Engraving.

« on: September 15, 2010, 07:10:03 AM »

I have already posted this under the laser project thread but it is perhaps helpful to have video's all in the same place.

This is my video of laser cutting the Mayan calendar into Obechi. It's really quite boring, like watching paint dry, but the music is good 

                                                          http://www.cooperman.talktalk.net/Aztec2.wmv

Tweakie.

7609

General Mach Discussion / Re: help with motor torque

« on: September 15, 2010, 07:02:11 AM »

Hi John,

Sounds like you are not supplying enough current to the stepper. Most boards have some form of current adjust, check the max current specified for your motor and adjust the board current accordingly. Although the motor voltage can be exceeded by many times the motor's rated current should never be exceeded so it is a careful adjustment.

Hope this helps,

Tweakie.

7610

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

« on: September 15, 2010, 06:19:34 AM »

Hi Dan,

Glad you liked the video. Sadly I can never do high quality because my web host doesn't like me posting large files and I haven't yet mastered YouTube 

That's true speed but the video is compressed down to 3Mb so there are probably a lot of frames missing and it perhaps looks faster than it really is. The X Axis feedrate is 4500mm/min but because of the combined mass of my X and Z the acceleration/deceleration is set low so the axis only just reaches around 4000 at the centre of it's travel on this 90mm diameter piece.
The one in the video is wood, it's Obechi and yes I have a good extractor system, this is one big essential for laser work.    (the near neighbors haven't complained yet but if they do then I will have to fit the HEPA filters etc uggg).

Tweakie.