Re: [Machinekit] Simple capes for BBB/Machinekit

2017-01-13 Thread Ralph Stirling
prox sensors for homing. On Friday, January 13, 2017 at 8:12:01 AM UTC-8, Harley Engholm wrote: > > I will check out the config files. Are you running the BBB on a Comet? How > much are you asking for the boards? > Harley > > On Thursday, January 12, 2017 at 8:08:18 PM UTC-8, Ra

Re: [Machinekit] Simple capes for BBB/Machinekit

2017-01-12 Thread Ralph Stirling
:27 AM UTC-8, Harley Engholm wrote: > > Do you have a BOM for the board and will the configuration files for > Comet_NP for the PBC BB work and how much for the PCB? Looks like a good, > simple setup. > Harley > > On Thursday, January 12, 2017 at 10:43:44 AM UTC-8, Ralph S

Re: [Machinekit] Simple capes for BBB/Machinekit

2017-01-12 Thread Ralph Stirling
BB won't be available for at least a couple > of months. > Harley > > On Sunday, September 18, 2016 at 10:24:39 AM UTC-7, Ralph Stirling wrote: >> >> Not finding anything available that I liked, I have designed a simple >> cape myself >> and will be getting a b

[Machinekit] Re: DB25 CAPE/breakout board for MachineKit? Perhaps open-source design?

2017-01-04 Thread Ralph Stirling
Hi Oliver, I designed a simple cape a few months ago and had 20 boards fabbed. It uses TBD62083 buffer chips for 5-24V I/O. I designed it with KiCad. I found one mistake on it, and have to add pull up resistors to eight pins. If you'd be interested in either a bare pcb or just the KiCad files,

[Machinekit] Re: Hardware choice for industrial application

2016-12-20 Thread Ralph Stirling
Not quite what you were asking, Bas, but I had one team of students in my Manufacturing Automation class use Machinekit on a BBB along with an AutomationDirect PLC for an assembly task. Other than a few random freezes or lockups, it worked pretty well. Cape was a custom one I designed. Writeup

[Machinekit] Re: running ngc code without gui

2016-11-30 Thread Ralph Stirling
by following these instructions: > > https://github.com/machinekoder/asciidoc-sandbox/blob/master/Starting-a-Machinekit-configuration-at-boot.md > > > This way machinekit starts after boot. > > You can also check sample Cetus and Machineface configs. > > 11/15/2016 0

[Machinekit] running ngc code without gui

2016-11-14 Thread Ralph Stirling
I am interested in using Machinekit BBB's as "automation appliances" in my Manufacturing Systems lab. Axis is handy for getting everything going, but once the program, I/O, and HAL configuration are figured out, it would be nice to unplug from the host PC and have it run headless. I can put a

Re: [Machinekit] Simple capes for BBB/Machinekit

2016-09-15 Thread Ralph Stirling
number of boards on multiple > lines and I looked at their automatic test fixtures that probe the > boards... and all of them were wire wrapped!So maybe not "that" retro! > :-) > > Dave > > On 9/15/2016 8:28 PM, Ralph Stirling wrote: > > You would have t

Re: [Machinekit] Simple capes for BBB/Machinekit

2016-09-15 Thread Ralph Stirling
and wire to go really retro? On Thursday, September 15, 2016 at 5:09:09 PM UTC-7, Charles Steinkuehler wrote: > > On 9/15/2016 5:27 PM, Ralph Stirling wrote: > > I have decided to use Machinekit running on BBB's in my Manufacturing > Systems > > course for > > senior ME

[Machinekit] Simple capes for BBB/Machinekit

2016-09-15 Thread Ralph Stirling
I have decided to use Machinekit running on BBB's in my Manufacturing Systems course for senior ME students. I've been using old PC's running Linuxcnc the past several years, and the old PC's have been failing. They also take up a lot of space in the lab. I've got one Probotix PBX-BB cape,

[Machinekit] Re: Blinking an LED

2016-09-14 Thread Ralph Stirling
Luke, We have done both single and twin inverted pendulums in our Feedback & Control classes. Our apparatus (our design and fabrication) has a cart driven by fishing line around a pulley on a high quality DC "basket weave" motor (Escap or Maxon). These have zero cogging, with no steel in the