Messages

6851

General Mach Discussion / Re: Math check on motor tune please

« on: April 07, 2010, 10:25:15 AM »

Hi Greg,

Steps per revolution calculations are OK but enter the complete figure (1904.7618) not just 1905.

The steps per revolution go into the 'steps per' box the velocity and acceleration are done by trial and error. Try velocity at 2000 and acceleration at 200 to start with and work from there. Select one axis, enter the figures and try the result with the up/down arrow keys, when correct click 'save axis' and then move on to the next axis etc. You may need to go back and fine tune them again when testing the whole machine.

Tip; Don't go for the highest possible speed as best overall reliability is probably some 10% to 20% less than the motors will reliably run at.

Hope this helps,

Tweakie.

6852

*****VIDEOS***** / Re: Vinyl cutting.

« on: April 07, 2010, 03:05:07 AM »

Thanks Sam.

If it wasn’t for the encouragement from all you guys I think I would still be engraving Road Runner

There has been quite a lot of discussion about tangential control and it’s necessity for producing tight corners which is why I made this video to demonstrate that, as far as vinyl is concerned, the simple ‘drag knife’ method produces more than acceptable results.

Terry has a recording studio built in his house, he plays the bass, acoustic and electric guitar’s and sings the vocals but the rest is all electronically generated. The synth alone looks like the Star-ship Enterprise. He is a very talented fella and I am fortunate indeed to be able to use his music in my video’s.

Tweakie.

6853

*****VIDEOS***** / Re: Vinyl cutting.

« on: April 06, 2010, 12:42:38 PM »

Thank you Dave.

Truth be known, my buddy Terry makes a much better job of the music than I make of the video's ! 

Tweakie.

6854

General Mach Discussion / Re: Making a laser cutter

« on: April 06, 2010, 03:01:35 AM »

Hi,

It's a very involved subject and the discussions between diode laser and CO2 laser will run for eternity. There is lots of laser info on Sam's Laser FAQ here http://www.repairfaq.org/sam/lasersam.htm

When it comes to adding a laser cutting head to an existing machine this is a link to my progress so far http://www.cooperman.talktalk.net/files/27.htm
The cold weather has halted progress lately but I hope to continue with the project sometime soon.

Tweakie.

6855

*****VIDEOS***** / Vinyl cutting.

« on: April 05, 2010, 11:54:54 AM »

A short video of cutting sticky back plastic.

                       http://www.tweakie.byethost10.com/anelpako.wmv


Tweakie.

6856

FAQs / Re: Limit to # of lines

« on: April 05, 2010, 04:35:49 AM »

Looking into this further, I may have been a little hasty in my earlier posting.......

It appears that the Mach loader does not automatically install the license file. Search your Tormach software for the file 'Mach1Lic.dat'. If it is there, then copy and paste this file into the Mach3 folder. Upon restart you will then have the licensed version of Mach3.

Tweakie.

6857

FAQs / Re: Limit to # of lines

« on: April 05, 2010, 03:54:22 AM »

You are the second person to mention that recently, it seems that Tormach CNC are not being completely up-front in the description of their software packages.
Looks like you now need to purchase the Mach license. 

Tweakie.

6858

FAQs / Re: Limit to # of lines

« on: April 05, 2010, 03:05:21 AM »

Are you using the licensed version of Mach or just the Demo version ?.

Tweakie.

6859

FAQs / Re: Joystick

« on: April 05, 2010, 02:53:49 AM »

Hi Larry,

There are a number of possible joystick solutions in the 'Plugins section' here http://www.machsupport.com/forum/index.php/board,30.0.html

Just a word of warning:-

Because joysticks and hand-held controllers tend to be used much closer to the machine than the keyboard is normally used extra vigilance is required to ensure your personal safety.
There have been a number of cases reported where the data stream has been unexpectedly interrupted (such as accidentally pulling out the USB plug) and one or more of the machine axis has run away out of control. The lesson here is “take care and don’t get too close” when using these devices.

Tweakie.

6860

General Mach Discussion / Re: Help with code problem

« on: April 05, 2010, 02:12:15 AM »

Glad you got it fixed Nathan. 

Tweakie.