Re: [Emc-users] Serport

On Fri, 2 Feb 2018 21:28:31 -0500 jeremy youngs wrote: > Can serport be used to supply +-10 v pwm for servo drive control? Is the > voltage output controllable? Wiki says 232 voltage can be +-13 or +- 24 so Usually it is used as an on/off signal and only duty cycle is

Re: [Emc-users] Serport

On Saturday 03 February 2018 00:26:33 jeremy youngs wrote: > Gene, just expanded to dual par ports, and am eliminating optos from > my stepper drives with a direct via db25 Bob . My drive is +-10 and I > do have a Chinese opto'd bob that has a pwm , but it is not > bi-directional . And I don't

Re: [Emc-users] Serport

Gene, just expanded to dual par ports, and am eliminating optos from my stepper drives with a direct via db25 Bob . My drive is +-10 and I do have a Chinese opto'd bob that has a pwm , but it is not bi-directional . And I don't really want to put a flip flop relay in the output , so I'm still

Re: [Emc-users] Serport

On Friday 02 February 2018 21:28:31 jeremy youngs wrote: > Can serport be used to supply +-10 v pwm for servo drive control? Is > the voltage output controllable? Wiki says 232 voltage can be +-13 or > +- 24 so I think voltage could be an issue. > I got the serport docs here , >

Re: [Emc-users] Serport

No, That is not going to work. PWM is where to send a square wave but very the duty cycle of the wave is resolution of at least one part in 256 or better to one part in 1024. If for some reason all you had was a serial port them you build a little device using say, maybe an Arduino-nano that

[Emc-users] Serport

Can serport be used to supply +-10 v pwm for servo drive control? Is the voltage output controllable? Wiki says 232 voltage can be +-13 or +- 24 so I think voltage could be an issue. I got the serport docs here , http://www.linuxcnc.org/docs/html/man/man9/serport.9.html Is there anything else I

Re: [Emc-users] Dynamic Soft Limits?

I can envision three scenarios that have to be considered from my very limited experience. Scenario 1 - Fixed timing - When tools are set up relative timing of the operations do not vary. Throughout the run of the program, the operations will be in a coordinated dance that will be known up front

Re: [Emc-users] Dynamic Soft Limits?

That was the idea. - Original Message - From: BRIAN GLACKIN To: Enhanced Machine Controller (EMC) Sent: Fri, 02 Feb 2018 12:50:03 -0500 (EST) Subject: Re: [Emc-users] Dynamic Soft Limits? Are you going to have multiple tools

Re: [Emc-users] Dynamic Soft Limits?

Are you going to have multiple tools working within the same work envelope on the same piece? On Fri, Feb 2, 2018 at 11:47 AM, Andrew wrote: > 2018-02-02 16:49 GMT+02:00 Todd Zuercher: > > > For example X can travel from 0-100, and U can travel from 20-120, U can > > be

Re: [Emc-users] Dynamic Soft Limits?

2018-02-02 16:49 GMT+02:00 Todd Zuercher: > For example X can travel from 0-100, and U can travel from 20-120, U can > be located in any position in its travel so long as it is greater than X, > and X can only go to a position less than U. > Might be a job for inihal pins ini.N.ini_limit and

Re: [Emc-users] Dynamic Soft Limits?

On 02/02/2018 07:49 AM, Todd Zuercher wrote: Envisioning a Cartesian machine with parallel axis with overlapping work areas. Is there a way to prevent/predict crashes between these overlapping axis with some sort of dynamic soft limit system? For example X can travel from 0-100, and U can

Re: [Emc-users] Dynamic Soft Limits?

On Friday 02 February 2018 09:49:33 Todd Zuercher wrote: > Envisioning a Cartesian machine with parallel axis with overlapping > work areas. Is there a way to prevent/predict crashes between these > overlapping axis with some sort of dynamic soft limit system? For > example X can travel from

[Emc-users] Dynamic Soft Limits?

Envisioning a Cartesian machine with parallel axis with overlapping work areas. Is there a way to prevent/predict crashes between these overlapping axis with some sort of dynamic soft limit system? For example X can travel from 0-100, and U can travel from 20-120, U can be located in any