Search found 71 matches

by ijv
Sun Jun 14, 2015 3:37 am
Forum: Member Projects
Topic: PID Closed Loop Spindle Speed Control for Quiet Cut Spindle
Replies: 11
Views: 13374

Re: PID Closed Loop Spindle Speed Control for Quiet Cut Spin

This looks great, I feel a really dirty hack coming on! I'm currently driving the Inventables Quiet Cut spindle using the spindle PWM output from grbl, so that I can set spindle rpm from g-code. So, if I can take that PWM output and feed it into your Arduino PID as the set point, I could have proper...
by ijv
Sun Jun 14, 2015 2:37 am
Forum: GRBL
Topic: Acessing A5 pin for probing when using gshield
Replies: 8
Views: 2132

Acessing A5 pin for probing when using gshield

Hi All, I'm using grbl with a V5 gshield and I want to implement a simple touch plate using grbls probing features. Buuuuttt... when I tried to access the A5 pin I found that it was pretty much inaccessible due to the X-axis screw terminals and wiring to the stepper completing covering that pin. Is ...
by ijv
Mon Oct 27, 2014 10:41 am
Forum: GRBL
Topic: grbl 0.9g settings for quiet cut spindle
Replies: 3
Views: 3865

Re: grbl 0.9g settings for quiet cut spindle

I've actually been using the Inventables hack and it seems to work ok. I can push it to 12,300 rpm before the power supply cuts out, but as you note, it could be the speed controller that it screwing up. I'm still tossing around ideas for measuring the rpm directly. One of the Arduino frequency coun...
by ijv
Wed Oct 22, 2014 12:22 am
Forum: Mini Spindles - Purchased
Topic: Quiet cut spindle Questions
Replies: 14
Views: 6007

Re: Quiet cut spindle Questions

Sometimes a guy just has to say DUH! What was I thinking? Ok I tried the proper commands and they seem to have no effect at all. The spindle just keeps running. Any more ideas? Thanks Smoky I think the M3, M2 etc commands only work on the special PWM build of GRBL 0.9G. I've done it as part of gett...
by ijv
Sat Oct 11, 2014 11:42 am
Forum: GRBL
Topic: grbl 0.9g settings for quiet cut spindle
Replies: 3
Views: 3865

grbl 0.9g settings for quiet cut spindle

Hi All, I've just compiled grbl 0.9g with the pwm spindle speed control option enabled. I'm using the Inventables quiet cut spindle along with their speed controller. I set the following defines in config.h file. / Use by the variable spindle output only. These parameters set the maximum and minimum...
by ijv
Tue Oct 07, 2014 12:00 pm
Forum: GRBL
Topic: Previous settings retained while flashing grbl
Replies: 0
Views: 557

Previous settings retained while flashing grbl

Hi All, I want to try out the new spindle speed control in the 0.9 release of grbl. So I re-compiled the source code and uploaded using the Arduino IDE (v1.5.8) over USB. One thing that has me mystified is that the previous configuration settings ($0, $1 etc.) were still retained. This was not the c...
by ijv
Tue Oct 07, 2014 11:54 am
Forum: Member Projects
Topic: Kid's step
Replies: 0
Views: 794

Kid's step

Hi All, this is my first serious Shapeoko project, a kid's step, with decorative extras, just because I could. I designed it in Alibre Design based off one of the digital wood joints at: http://www.flexiblestream.org/project/50-digital-wood-joints , CNC tool paths done using CamBam. Milled using the...
by ijv
Mon Sep 15, 2014 12:56 pm
Forum: GRBL
Topic: Question about GRBL 0.9G SO2 defaults
Replies: 10
Views: 2437

Re: Question about GRBL 0.9G SO2 defaults

Ooops, the page I linked to explains what all the grbl settings mean. The 0.9G grbl with SO2 defaults is actually at: http://bit.ly/1kOAzig

If you upload that to your grbl then enter $$ you will get the SO2 default settings.

ijv
by ijv
Mon Sep 15, 2014 1:03 am
Forum: GRBL
Topic: Question about GRBL 0.9G SO2 defaults
Replies: 10
Views: 2437

Re: Question about GRBL 0.9G SO2 defaults

Still having trouble with this. Where is the setting for microsteps / step? How do I find out if my motors are 200 or 400 steps / revolution? Or is this a setting needing to be made somewhere? When I try to run it no matter how far I tell it to run, it just seems to jerk once and stop. X, Y, or Z a...
by ijv
Fri Sep 12, 2014 12:20 am
Forum: GRBL
Topic: I2C remote
Replies: 17
Views: 3180

Re: I2C remote

As a side note, I've also been investigating implementing third-order S-curves, now that there will be both the processing power and flash space to install something like this. It turns out that this is absolutely NOT a trivial problem to create an optimal plan through a sequential set of motions w...