Search found 60 matches

by FargoPhil
Wed Oct 07, 2015 4:00 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 4927

Re: acceleration

That's a really good point re; the transfer speed. By the sound of things the target for each line of gcode is < 20 bytes. I'll keep that in mind. I've been digging around in the Universal GCode Sender source, and could probably implement a pre-processor feature to cut out X/Y/Z/S if the previous ro...
by FargoPhil
Wed Oct 07, 2015 3:37 pm
Forum: Electronics
Topic: Shapeoko3 - Laser etching mod documented and posted
Replies: 19
Views: 5206

Re: Shapeoko3 - Laser etching mod documented and posted

The issue I'm having seems to have more to do with acceleration. See topic http://www.shapeoko.com/forum/viewtopic.php?f=3&t=6970

I've got some ideas on things to try.
-Increase pixel size
-Increase acceleration
by FargoPhil
Wed Oct 07, 2015 3:03 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 4927

Re: acceleration

I've been coming to the same conclusion (get a purpose-built laser machine), in the mean time I'd like to try and get the so3 to do the job. Actually, given that "the job" is to be a toy I can learn on, it's doing a bang up job. :) The actual gcode coming out of the engraving software includes spind...
by FargoPhil
Wed Oct 07, 2015 2:40 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 4927

Re: acceleration

I'll look at the junction deviation this evening. I've got a shapeoko 3. I'm not sure off hand what arduino the carbide motion board is equivalent to. What I'd *like* to do is use the same machine for both lasering and routering, ideally without messing with the tools. I've currently got the laser a...
by FargoPhil
Wed Oct 07, 2015 1:43 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 4927

Re: acceleration

Interesting. That clears things up. I didn't realize the buffer was only 17 moves. Is there a flag I can set to change the assumption that the spindle should stop when the buffer is empty? So instead of assuming after 17 moves we're going to stop, assume that after 17 moves we're going to be going t...
by FargoPhil
Wed Oct 07, 2015 2:15 am
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 4927

acceleration

I am new to cnc in general and am learning how to work my shapeoko 3. I've got an led laser that I added on and am having trouble with getting things to come out right. I believe that part of my trouble is that I don't understand how grbl deals with the acceleration setting. For a test, I wrote a li...
by FargoPhil
Wed Oct 07, 2015 1:30 am
Forum: For Sale
Topic: Software for engraving images with laser attachment
Replies: 6
Views: 1336

Re: Software for engraving images with laser attachment

Bit of feedback, I really like the calibration feature. I ran the calibration with defaults and burned a rectangle in the board. Then turned up the feed rate and was able to start to make out the gradient. The status bar at the bottom of the screen quit updating however. So the estimated time remain...
by FargoPhil
Tue Oct 06, 2015 6:48 pm
Forum: Electronics
Topic: Shapeoko3 - Laser etching mod documented and posted
Replies: 19
Views: 5206

Re: Shapeoko3 - Laser etching mod documented and posted

I am using s10000 as the max. If anything it's too high for the results I'm getting since the head is moving so slowly. I'll take a look at the inkscape plugin again and see how that does. Will be interesting to compare the gcode at least.

Thanks
Phil
by FargoPhil
Tue Oct 06, 2015 5:07 pm
Forum: Electronics
Topic: Shapeoko3 - Laser etching mod documented and posted
Replies: 19
Views: 5206

Re: Shapeoko3 - Laser etching mod documented and posted

The documentation gave an alternate way to set the output current, so I was able to get it up and running. The laser doesn't get hot at all, but the transistor on the driver board does. I didn't check the rest of the grbl controller board, probably should do that. I used the trial version of pic eng...
by FargoPhil
Tue Oct 06, 2015 4:51 pm
Forum: Design Ideas
Topic: Epoxy granite?
Replies: 5
Views: 2213

Re: Epoxy granite?

That sounds a lot like quartz counter top material. Brand names like Silestone, Zodiaq, Cambria. Used as counter tops, it's commonly 2cm or 3cm thick. 2cm is more common due to cost. You may be able to find a deal on a piece from a fabricator in the area. They will often have scraps sitting outside ...