Search found 60 matches

by FargoPhil
Wed Nov 04, 2015 10:13 pm
Forum: GRBL
Topic: reflashing carbide motion controller
Replies: 12
Views: 3198

Re: reflashing carbide motion controller

As far as I know, it's literally the same as flashing to an Arduino Uno. If you are building from source, there's a bunch of files in there with defaults for different CNC machines, Shapeoko 3 is one of them. You just need to tell it to use that one. (Sorry that's incredibly vague. I don't recall wh...
by FargoPhil
Wed Nov 04, 2015 7:23 pm
Forum: GRBL
Topic: Install universal Gcode sender on Raspberry Pi
Replies: 5
Views: 2435

Re: Install universal Gcode sender on Raspberry Pi

I think you'll have better luck if you include the exact command you are running along with the result you are getting. Curl is just a command line http client. The link is good http://www.shapeoko.com/wiki/images/6/6a/Coaster.txt . So off hand, I would assume that you don't have curl installed. You...
by FargoPhil
Mon Nov 02, 2015 10:37 pm
Forum: Tooling & Fixtures
Topic: New SO3 Table
Replies: 16
Views: 4192

Re: New SO3 Table

Nice! Any words of advice for people looking to do the same?
by FargoPhil
Fri Oct 30, 2015 1:48 pm
Forum: GRBL
Topic: reflashing carbide motion controller
Replies: 12
Views: 3198

Re: reflashing carbide motion controller

Any luck reflashing the carbide motion board? I would like to do some mods too specially, clearing all the eeprom memory since i think i screwed up the WCS and want to have a clean start cvoinescu is right, that would be like swatting a fly with a bazooka. But to answer your question, yes. I was ab...
by FargoPhil
Mon Oct 26, 2015 3:23 pm
Forum: GRBL
Topic: GRBL seems to stutter on spindle speed changes
Replies: 6
Views: 3060

Re: GRBL seems to stutter on spindle speed changes

I've been using UGS, but run it with two changes to the startup batch file. (start-windows.bat) I've found that the default settings don't work well for the large gcode files that are generated by image rastering. The following adjustments may help. First increase the memory by changing -Xmx256m to ...
by FargoPhil
Fri Oct 23, 2015 6:04 pm
Forum: GRBL
Topic: GRBL seems to stutter on spindle speed changes
Replies: 6
Views: 3060

Re: GRBL seems to stutter on spindle speed changes

As it sits right now, GRBL flushes the command buffer on every spindle speed change. The flush means that the machine comes to a stop. There are a couple of modified firmwares floating around (check the forum at picengrave and jtech photonics.) It sounds like there's an official laser mode in the wo...
by FargoPhil
Thu Oct 22, 2015 7:42 pm
Forum: Discussion
Topic: Depth issue...
Replies: 1
Views: 534

Re: Depth issue...

Make sure the units are inches if that's what you're working in. That was the first problem I ran into when setting mine up.

http://www.cnccookbook.com/CCCNCGCodeG2 ... ersion.htm
by FargoPhil
Sun Oct 11, 2015 4:43 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 6079

Re: acceleration

I'm learning what you guys already know. The reason the spindle stops is because the buffer gets flushed before the pwm is changed. I still haven't quite figured out the flow of things, but my guess is that's because the spindle change command is being executed when it is first received over serial,...
by FargoPhil
Sun Oct 11, 2015 4:27 am
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 6079

Re: acceleration

Looks like I'll just need to wait until the new laser support comes out. I was expecting that the spindle speed change motion stops would be overcome by a crazy high acceleration. I was expecting to hear buttery smooth motion regardless of spindle changes. I may dig around a bit more to see if I can...
by FargoPhil
Sat Oct 10, 2015 8:21 pm
Forum: GRBL
Topic: acceleration
Replies: 27
Views: 6079

Re: acceleration

OK, I modified grbl to add a modifier 'T' to the $ commands, which updates settings but doesn't persist to flash. (T = temporary) So the commands in #3 $T120=10000 set the acceleration to 10000 but don't write to eeprom. The line isn't as crisp as I'd like, but I'm guessing that's got more to do wit...