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Posts from — October 2015

G-Code (aka RS-274)

A standardized-but-not-very (think HTML extensions) language for machine tools. Originating at MIT in the 1950 era, standardized in the United States by the Electronic Industries Alliance in the early 1960s. Final revision in 1980 as RS-274-D.

Other countries use ISO6983, DIN66025, PN-73M-55256, PN-93M-55251. Manufacturers often extend the G-Code with proprietary settings.  Siemens and Fanuc were popular controllers used.

CAM programs will often feature post-processors, which turn the CAM specific toolpaths generated into machine specific G-Code language.

Finally, some machine controllers are abstracting G-Code via conversational programming.

There’s a few web resources on g-code I use for reference.

 

October 23, 2015   Comments Off on G-Code (aka RS-274)

Couplers

From the ever popular CNCZone:

Al_The_Man and Crevice Reamer:

CR:

Only 3 types of couplers offer true zero backlash connection:

Solid. (which can cause problems unless PERFECTLY aligned, Helical, or Oldham.  Helicals are basically solid couplers with some alignment flexibility. Make sure you get the clamping type.

Al:

If by Lovejoy you mean spider type then it depends on what material and fit is used for the spacer, the next best is Oldham which is a form of zero backlash spider style.
There is also Disc type zero backlash, if using Helical for any kind of stepper or servo torque application then stainless should be used, aluminum does not stand up to repeated flexing, especially with any slight misalignment.
Either the Lovejoy or Misumi sites will show all the different kinds they offer.

October 19, 2015   Comments Off on Couplers

Workplace Organizational Behavior

Psychopaths in the C-suite: Fred Kiel at TEDxBGI

Discusses the title, how personal character does create tangible business results

C level operatives above the median score generate almost three times the return on assets as those below the median

– The high character CEO’s contributed a average return of 8.4%, those at the bottom of the curve lost money 0.57%

Character in the workplace matters, and character is something that can be taught.

Four moral principles found that if present, people will see great character:

Integrity: (generates trust in the workforce)

– Acting consistently with principles, values and beliefs (walking your talk)

– Telling the truth

– Standing up for what is right

– Keeping promises

Responsibility (generates inspiration in the workforce)

– Taking responsibility for personal choices

– Admitting mistakes and failures

– Embracing responsibility for serving others “leave the world a better place”

Forgiveness (generates innovation in the workplace)

– Ability to let go of one’s mistakes

– Ability to let go of others’ mistakes

Compassion (generates workforce engagement and retention)

– Actively caring for others

Return on Character – Business Metrics:

Return on Assets and level of workforce engagement


 

 

Psychopaths in the C-suite: Fred Kiel at TEDxBGI

Burnout and Post Traumatic Stress Disorder: More Similar Than You Think

Similarities between Burnout and PTSD

– Exposure to traumatic event OR extreme stressor

– Respond with fear, hopelessness, or horror

– Sleep disturbances, nightmares

– Depression, withdrawal

– Frequent mood changes, generalized irritability

– Avoid activities that promote recall of traumatic event


 Workplace Bullying

 

 

October 19, 2015   Comments Off on Workplace Organizational Behavior