Re: [Emc-users] arc intersection question

2011-03-23 Thread forget color
Jeff, this is fabulous, thank you so much! One remaining question: do you have any hints on how to calculate the arc center given only: x1,y1 (start) x2,y2 (end) r (radius) winding direction I've been having trouble adapting the formulas Kim pointed to. While I'm ok with Python, algebra isn't

Re: [Emc-users] Single to Three Phase Rotary Converters

2011-03-23 Thread John Crane
Thanks, John R. Crane On Mon, Mar 21, 2011 at 7:27 AM, John Thornton bjt...@gmail.com wrote: John, I'll dig out my schematic and make sure it is up to date and figure a way to post it to the list. John John Crane wrote: John, I would like to know more about the way you have

[Emc-users] One more Q

2011-03-23 Thread gene heskett
Greetings all; Is this a valid varname in 2.4.6? example: set a value #_t-len = 0.750 Then later in the subroutine: #t-wid+ = [[#_t-len] * 0.5] ^ Referring to the use of the + and - signs as adjectives that help me visualize this. If so, my code will be a lot easier to read,

Re: [Emc-users] arc intersection question

2011-03-23 Thread Chris Radek
On Wed, Mar 23, 2011 at 01:13:41AM -0500, forget color wrote: Jeff, this is fabulous, thank you so much! One remaining question: do you have any hints on how to calculate the arc center given only: x1,y1 (start) x2,y2 (end) r (radius) winding direction In the general case

Re: [Emc-users] unexpected realtime delay

2011-03-23 Thread Fred Kehler
great list! I have had this error popping up all the time since I upgraded to the 10.04 distribution ( seldom on the 8.04, same computer) and the isolcpu=1 seems to have solved it... does it follow then that the second cpu in this case is not being managed by the realtime kernel? I am currently

Re: [Emc-users] unexpected realtime delay

2011-03-23 Thread Moses McKnight
On 03/23/2011 12:52 PM, Fred Kehler wrote: great list! I have had this error popping up all the time since I upgraded to the 10.04 distribution ( seldom on the 8.04, same computer) and the isolcpu=1 seems to have solved it... does it follow then that the second cpu in this case is not being

Re: [Emc-users] arc intersection question

2011-03-23 Thread forget color
In the general case (non-semicircle) this isn't enough to describe an arc; you get two arcs. I figured there must be a way to decide which circle the arc is from given the winding direction, but haven't figured it out. It makes me wonder: these are the only values I give to EMC2 to draw the

Re: [Emc-users] arc intersection question

2011-03-23 Thread Chris Radek
On Wed, Mar 23, 2011 at 06:52:53PM -0500, forget color wrote: In the general case (non-semicircle) this isn't enough to describe an arc; you get two arcs. I figured there must be a way to decide which circle the arc is from given the winding direction, but haven't figured it out. I meant

Re: [Emc-users] Math Q

2011-03-23 Thread BRIAN GLACKIN
On Wed, Mar 23, 2011 at 12:49 AM, gene heskett ghesk...@wdtv.com wrote: On Wednesday, March 23, 2011 12:35:24 AM Igor Chudov did opine: On Tue, Mar 22, 2011 at 10:28 PM, gene heskett ghesk...@wdtv.com wrote: Anyway, http://gene.homelinux.net:85/gene/emc new toy is left pix in next to

Re: [Emc-users] Math Q

2011-03-23 Thread gene heskett
On Wednesday, March 23, 2011 10:12:56 PM BRIAN GLACKIN did opine: On Wed, Mar 23, 2011 at 12:49 AM, gene heskett ghesk...@wdtv.com wrote: On Wednesday, March 23, 2011 12:35:24 AM Igor Chudov did opine: On Tue, Mar 22, 2011 at 10:28 PM, gene heskett ghesk...@wdtv.com wrote: Anyway,

Re: [Emc-users] Math Q

2011-03-23 Thread Jack Coats
... I mounted a half inch router bit in my HF grinder and used it to face the sacrificial board on my table.  It powered through it nicely. MDF I presume.  And you know how to sharpen cemented carbide bits I assume. ;) I do know how to sharpen cemented carbide bits, there is a guy a

Re: [Emc-users] Math Q

2011-03-23 Thread gene heskett
On Thursday, March 24, 2011 12:40:49 AM Jack Coats did opine: ... I mounted a half inch router bit in my HF grinder and used it to face the sacrificial board on my table. �It powered through it nicely. MDF I presume. �And you know how to sharpen cemented carbide bits I