Messages

11

General Mach Discussion / Re: Re: Steps Per setup

« on: June 07, 2014, 12:28:57 AM »

I think you will want to go to Motor Tuning and change the Velocity setting with the slider on the right. Probably drag it down. Then test with the up and down arrow keys. Followed by I think it's called "Accept Changes".

12

G-Code, CAD, and CAM discussions / Re: How does Feed Rate relate to Velocity-Acceleration

« on: June 01, 2014, 03:03:21 PM »

Thanks, I see that there is no advantage in using a higher kernel speed than necessary because the motor has a certain performance, as well as the inertia that it takes, as well as gearing, or how the machine is built etc. And velocity and acceleration is best when "experimented with" for each individual machine. I tried to build my machine for fast y axis movement for back and forth carving g-code.

Therefore I will turn down my kernel speed from 35000 to the recommended 25000 and re-calibrate the motor tuning. My documentation showed 35000 so that's how I set it up.

And it looks like the max feed rate would be the same as the motor tuning velocity that is set up for any particular machine. The document doesn't say that but that's just my assumption.

I'll play with feed rate and plunge rate when creating my g-code to see what happens.

Thanks, Alan

13

G-Code, CAD, and CAM discussions / How does Feed Rate relate to Velocity-Acceleration

« on: May 31, 2014, 10:53:57 PM »

I'm just learning how to operate my new CNC and am wondering about feed rate as it relates to the Velocity and Acceleration that is set up in Motor Tuning.

I ran a job that I gave a feed rate of 50 to create the g-code and it ran well except I would like to see it go faster. Now if I were to turn the feet rate up to say 100 would it go as fast as my machine is set up for through motor tuning? And plunge rate I imagine would control only the z axis and work the same way right?

14

*****VIDEOS***** / Re: Mobile CNC Router (Home Made)

« on: May 30, 2014, 09:30:17 AM »

As the new Mach4 is going to come out I'll be looking for ways to turn raster images into G-code and constantly trying to get the machine to go faster and faster. I'll probably be looking for compatible drivers and USB boards to get it faster.

15

*****VIDEOS***** / Mobile CNC Router (Home Made)

« on: May 29, 2014, 08:48:02 PM »

I just ran my first project with this machine that I built specifically for Raster Carving. I put together an image using Gimp software, opened it up on my LinuxCNC computer to create G-code, then put the code on my Win XP computer running Mach3 and Raster carved it with my mobile router that I put together with parts from Inventables.com and buildyourcnc.com.

Here's the video: https://www.youtube.com/watch?v=UOeXTPZMJJE

And the other one: https://www.youtube.com/watch?v=vJb0dKbvF5Q