Messages

971

LazyTurn / Re: LazyTurn

« on: May 28, 2009, 09:54:28 AM »

Rich:

  I wouldnt worry too much about it, the diagnostics will probably not be in the final version. But Ill check why it posts.. It shouldnt..

Art

972

General Mach Discussion / Re: Problems threading on the lathe

« on: May 27, 2009, 10:30:45 PM »

Rich:

 Should work for real in theory.

Art

973

Finished Plugins for Download / Re: 3d Video Probe

« on: May 27, 2009, 12:53:20 PM »

Dan:

 Shine it through a bar of glass. ( or get a line laser which has one built in..their cheap..)

Art

974

General Mach Discussion / Re: Problems threading on the lathe

« on: May 27, 2009, 11:06:27 AM »

Hi Guys:

  New version. Liek to know if you can thread now with more slots Chip..Your latest photos looked great other than
that. This version shoudl also slow the Z if the spindle slows in a thread run.

Art

975

General Mach Discussion / Re: Problems threading on the lathe

« on: May 26, 2009, 06:47:56 PM »

Hi Guys:

  New version of threading plugin. This is for Chip , I need to know see a snap of the scope capturing
about 1024 samples.. There is a new DRO to show what sample number is causing that wrong minimum time
reading..

  We ARE getting very close it seems, numbers are looking good all round, next stage will be actual threading
correction algorithm being turned on if this all works..

Thx
Art

976

General Mach Discussion / Re: Problems threading on the lathe

« on: May 26, 2009, 10:12:37 AM »

Hood:

  Good point, threading woudl be an issue, to thread youd have to set the feedrate properly as the program auto sets to 100% for the threading run..

Art

977

General Mach Discussion / Re: Problems threading on the lathe

« on: May 26, 2009, 08:48:56 AM »

Hi:

 Just a note on the "feedrate over 100%" issue. I recommend on SS systems that people post their code at twice to feedrate they desire, and program Mach3 to come up at 50% feedrate at all times.
This allows you to adjust feedrate up to 100% thus doubleing the speed anytime you wish. Setting it back down to 50% would give you the desired feedrate.

  Id do this internally, but the printer port is limited in max speed, and it would waste bandwidth for the printer port where people may want 100% of the kernal speed available all the time. In the case of the SS though, it is so fast that it would be rare to max out its capability. Running at all times normally at 50% and posting at 200% would solve any issue with speed. ( At the cost of being carefull that your at 50% when running normally. )

  Eventually though, this will likely all be done internally thus giving a capability of more than 100% of speed. There are technical issues with just allowing more than 100% as a norm, because the acceleration profiles and such woudl be overrun thus making it accelerate too hard and decelerate too hard.

Art
  

978

LazyTurn / Re: LazyTurn

« on: May 25, 2009, 05:29:22 PM »

Rich:


  My thought is that a finish pass can always deal with the bumps though an assumption about the finish pass depth. Lets say the previous pass, the one just completed that now triggers the finsh pass, was done with a depth per pass of 2mm's. We know then that any bumps left affect that tool by no more than 2mm's. Thats all that can be left for that tool on the profile where the tool can actually fit. So if a person specifies a
final pass depth of 2mm, I can follow a profile of where the tool will fit along the acutal profile of the object , knowing that no more than 2mm can be seen. However, if a user specifies a finish depth of 1mm, for example, then two finish profiles woudl be generated, one 1mm out from the profile, the next at profile depth.
   All I really know is that when a finish is called for , its for the same tool that did the previous cut, and the pass of the previous cut. Selecting any tool invalidates the call for a finish pass, so the previous pass was always the finish pass's tools last rough pass.So it may indeed take several tools to complete a finish, but that shoudl be automatic by virtue of the finish will only be performed where that tool can fit.

  That will be my thrust anyway.. at first..

 So the user sequence to follow will be

1) Selecting a tool
2) Rough pass
3) Fine Rough
4) Finish,

  Rince and repeat with other tools for other areas to be "finished"

Im sure it will get more complicated than that, but thats what Im aiming for.

Art

979

LazyTurn / Re: LazyTurn

« on: May 25, 2009, 10:09:09 AM »

Hi Guys:

  New Version.

  This version fixes the previously mentioned spline error, and also will post for all toolpaths generated.
I have some work to do on optimising the secondary toolpaths, and then its on to the Finish path
generation. Thats still a confusing one as to exactly how to do that efficiently,..but we'll see what I
can think up..

 Have fun,
Art

980

LazyTurn / Re: LazyTurn

« on: May 24, 2009, 10:32:05 PM »

Hi:

 Has to do with it having a polyspline as an entity, and th eobject being so small.
Fixed for next release, it now loads on mine.

Thx
Art