Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Jon Elson
gene heskett wrote: > On Thursday, January 27, 2011 01:26:18 pm Kirk Wallace did opine: > >> This link: >> http://www.beyondlogic.org/epp/epp.htm >> >> > Good Grief! ISWYM by incredibly sloppy. > > That is not the official document, of course. But, in fact, there is NO timing informat

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Jon Elson
Kirk Wallace wrote: > This link: > http://www.beyondlogic.org/epp/epp.htm > > seems to indicate that one only needs to do a write to the EPP Data or > Address register to do an EPP transfer. There doesn't seem to means to > "put" the card into EPP mode. What am I missing? > > A write of 0x80 to

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Jon Elson
Igor Chudov wrote: > > Do you know if the fixes that you mention, also are needed for my encoder > boards? > The encoder fix is for the ones with the old 5V Spartan chips. You have the ones with the 3.3V Spartan IIE, so they are fine. There is also a fix for the DAC board, which makes the di

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Erik Christiansen
On Thu, Jan 27, 2011 at 01:42:09PM +, andy pugh wrote: > > My manual-to-cnc conversion of a small rotary table ended up with me > adding a needle roller support at the worm end, and a pair of angular > contact bearings outboard to take the thrust loads and eliminate the > end float. > > It no

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Peter C. Wallace
On Thu, 27 Jan 2011, Kirk Wallace wrote: > Date: Thu, 27 Jan 2011 17:13:46 -0800 > From: Kirk Wallace > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] Second (PCI) parallel port card > > On Thu, 2011-01-27 at 10:01 -0800

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Thomas Powderly
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Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Kirk Wallace
On Thu, 2011-01-27 at 10:01 -0800, Kirk Wallace wrote: ... snip > I'll get pictures and more information on my card later today. I'd > really like to get it working if I can. Here is my card that I still haven't gotten to work in EPP: http://www.wallacecompany.com/machine_shop/EMC2/moko_l76.0-1a.j

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread gene heskett
On Thursday, January 27, 2011 01:26:18 pm Kirk Wallace did opine: > On Thu, 2011-01-27 at 11:15 -0600, Jon Elson wrote: > ... snip > > > Every multi-IO chip has its own way of interpreting the > > incredibly lax specs of the IEEE-1284 protocol. Some boards put the > > data and WRITE/ signal out

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Kirk Wallace
On Thu, 2011-01-27 at 11:15 -0600, Jon Elson wrote: ... snip > Every multi-IO chip has its own way of interpreting the > incredibly lax specs of the IEEE-1284 protocol. Some boards put the > data and WRITE/ signal out first, then provide the strobe pulse. Some > put them out at the same time,

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Kirk Wallace
On Thu, 2011-01-27 at 10:25 -0600, Igor Chudov wrote: ... snip > Kirk, could you tell us, what was it that did not work in your card? Any > pitfalls to watch out for? ... snip Off hand, I recall the problem was EMC2 did not see my Pluto board. The Pluto has an LED which goes bright on power up, th

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 11:50 AM, Steve Blackmore wrote: > On Thu, 27 Jan 2011 08:21:33 -0600, you wrote: > > >No air fittings that I can find. I will try to open up this RT. I opened > one > >end of it and found strange brown colored grease near the 90 degree gear., > > I'd be tempted to take it

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Steve Blackmore
On Thu, 27 Jan 2011 08:21:33 -0600, you wrote: >No air fittings that I can find. I will try to open up this RT. I opened one >end of it and found strange brown colored grease near the 90 degree gear., I'd be tempted to take it apart, clean it out and relube. Like you say in your write up, it's pr

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 11:15 AM, Jon Elson wrote: > andy pugh wrote: > > On 26 January 2011 20:56, Igor Chudov wrote: > > > >> The bad news is that the parallel port chipset that is on my new PC's > >> motherboard, does not want to talk to PPMC when two encoder boards are > >> installed in PPMC

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Jon Elson
andy pugh wrote: > On 26 January 2011 20:56, Igor Chudov wrote: > >> The bad news is that the parallel port chipset that is on my new PC's >> motherboard, does not want to talk to PPMC when two encoder boards are >> installed in PPMC. >> > > Which motherboard? > > I assume that this is unr

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Peter C. Wallace
On Thu, 27 Jan 2011, Kirk Wallace wrote: > Date: Thu, 27 Jan 2011 08:15:48 -0800 > From: Kirk Wallace > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] Second (PCI) parallel port card > > On Thu, 2011-01-27 at 07:02 -0800

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread gene heskett
On Thursday, January 27, 2011 11:52:51 am Sebastian Kuzminsky did opine: > On 01/27/2011 08:16 AM, Igor Chudov wrote: > > On Thu, Jan 27, 2011 at 9:02 AM, Peter C. Wallace wrote: > >> card. There may be trouble with the Lava card (MOKO chipset) as Kirk > >> W suggested. AFAICR Sebastian K. did n

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 10:38 AM, Sebastian Kuzminsky wrote: > On 01/27/2011 08:16 AM, Igor Chudov wrote: > >> On Thu, Jan 27, 2011 at 9:02 AM, Peter C. Wallace >> wrote: >> >>> card. There may be trouble with the Lava card (MOKO chipset) as Kirk W >>> >>> suggested. AFAICR Sebastian K. did not g

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread gene heskett
On Thursday, January 27, 2011 11:41:45 am Peter C. Wallace did opine: [...] > > I wonder it there could have been a fix for that applied in the newer > > 9815 chip? > > All the 98XX series parts share the problem. (the existance of the > problem is documented in the MOSChip data sheet. Their sugg

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Sebastian Kuzminsky
On 01/27/2011 08:16 AM, Igor Chudov wrote: > On Thu, Jan 27, 2011 at 9:02 AM, Peter C. Wallace wrote: >> card. There may be trouble with the Lava card (MOKO chipset) as Kirk W >> suggested. AFAICR Sebastian K. did not get it working with our 7I43, but I >> do >> know its EPP mode hardware works fi

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 10:15 AM, Kirk Wallace wrote: > On Thu, 2011-01-27 at 07:02 -0800, Peter C. Wallace wrote: > ... snip > > I hope so too, It would be good to have a known working, non-obscure EPP > PCI > > card. There may be trouble with the Lava card (MOKO chipset) as Kirk W > > suggested.

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 9:34 AM, Peter C. Wallace wrote: > On Thu, 27 Jan 2011, Igor Chudov wrote: > > Well, is there any other card that is known to work? > > No non-obcure ones I know of. There are a couple of newer chipsets I havent > tried yet however. The bad thing is that the (non-working E

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Kirk Wallace
On Thu, 2011-01-27 at 07:02 -0800, Peter C. Wallace wrote: ... snip > I hope so too, It would be good to have a known working, non-obscure EPP PCI > card. There may be trouble with the Lava card (MOKO chipset) as Kirk W > suggested. AFAICR Sebastian K. did not get it working with our 7I43, but I

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Peter C. Wallace
On Thu, 27 Jan 2011, Igor Chudov wrote: > Date: Thu, 27 Jan 2011 09:16:04 -0600 > From: Igor Chudov > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] Second (PCI) parallel port card > > On Thu, Jan 27, 2011 at 9:02 AM, Pe

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 9:02 AM, Peter C. Wallace wrote: > On Thu, 27 Jan 2011, Igor Chudov wrote: > > > Date: Thu, 27 Jan 2011 08:47:37 -0600 > > From: Igor Chudov > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To: "Enhanced Machine Controller (EMC)" > > > Subject: Re: [Emc-use

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Peter C. Wallace
On Thu, 27 Jan 2011, Igor Chudov wrote: > Date: Thu, 27 Jan 2011 08:47:37 -0600 > From: Igor Chudov > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] Second (PCI) parallel port card > > I bought a lava card yesterday, hop

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Igor Chudov
I bought a lava card yesterday, hopefully it will work. i On Thu, Jan 27, 2011 at 8:34 AM, Peter C. Wallace wrote: > On Wed, 26 Jan 2011, gene heskett wrote: > > > Date: Wed, 26 Jan 2011 21:45:04 -0500 > > From: gene heskett > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To: em

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Peter C. Wallace
On Wed, 26 Jan 2011, gene heskett wrote: > Date: Wed, 26 Jan 2011 21:45:04 -0500 > From: gene heskett > Reply-To: "Enhanced Machine Controller (EMC)" > > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Second (PCI) parallel port card > > On Wednesday, January 26, 2011 09:27:4

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Igor Chudov
No air fittings that I can find. I will try to open up this RT. I opened one end of it and found strange brown colored grease near the 90 degree gear., On Thu, Jan 27, 2011 at 7:37 AM, andy pugh wrote: > On 27 January 2011 13:17, Igor Chudov wrote: > > >> It is called a Troyke U12PNC. Here's ar

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread andy pugh
On 27 January 2011 13:28, Erik Christiansen wrote: > Unfortunately it's after loosening the lock, and adjusting that > eccentric worm mount that I have quite a few degrees of slack in the > worm. This is probably end-float in the worm. My manual-to-cnc conversion of a small rotary table ended u

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread andy pugh
On 27 January 2011 13:17, Igor Chudov wrote: >> It is called a Troyke U12PNC. Here's are pictures and many details: I don't suppose there are any air fittings indicating that it has a clamp? -- atp "Torque wrenches are for the obedience of fools and the guidance of wise men" -

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Erik Christiansen
On Thu, Jan 27, 2011 at 11:29:33AM +, Steve Blackmore wrote: > Hi Erik - the handle housing is made eccentric to allow adjustment of > the worm and wheel engagement. Loosen the locks then adjust the > eccentric so it's just binding, (that should reduce nearly all the slack > in the handle) the

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Igor Chudov
On Thu, Jan 27, 2011 at 2:43 AM, Steve Blackmore wrote: > On Wed, 26 Jan 2011 22:03:33 -0600, you wrote: > > >Eric, the friction on my linear axes is not anywhere close to the friction > >in the rotary table. IIRC, it takes less than an amp to move my X axis, > and > >over 3 amps to move the rota

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Steve Blackmore
On Thu, 27 Jan 2011 21:15:00 +1100, you wrote: >Many thanks for the tuning tips, Steve. It's a Vertex which allows >nearly 15° of handle movement with the table locked. I'll try your >suggestions. Hi Erik - the handle housing is made eccentric to allow adjustment of the worm and wheel engagemen

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread Mark Wendt
On 01/26/2011 06:33 PM, Igor Chudov wrote: > ... snip >> There have been problems with EPP and FPGA cards. It seems only >> motherboard parallel ports have the proper firmware. There are some PCI >> cards that will work, but good luck finding one. >> >> >> > Thanks. What about this card: > >

Re: [Emc-users] Second (PCI) parallel port card

2011-01-27 Thread andy pugh
On 26 January 2011 20:56, Igor Chudov wrote: > The bad news is that the parallel port chipset that is on my new PC's > motherboard, does not want to talk to PPMC when two encoder boards are > installed in PPMC. Which motherboard? I assume that this is unrelated to the known problem with the Inte

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread andy pugh
On 27 January 2011 03:01, Jon Elson wrote: > (For completeness, FF0 is feedforward proportional to position, not a > really helpful > term.) It seems to me that FF0 would be ideal for a closed-loop spindle speed control PID. The FF0 term gives you the PWM duty cycle directly proportional to spee

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Erik Christiansen
On Thu, Jan 27, 2011 at 08:43:25AM +, Steve Blackmore wrote: > There are a plethora of Indian, Taiwanese and Chinese tables out there > and quality and design varies greatly. Shoba, Soba & Vertex spring to > mind. Some have bearings, some not, but all needed at least the worm > running in with

Re: [Emc-users] DIY BLDC Motors - FCM8201,2 and IRAMS

2011-01-27 Thread jros
On Wed, 2011-01-26 at 18:15 +0100, joachim.franek wrote: > Am Dienstag 25 Januar 2011, um 18:17:00 schrieb Kirk Wallace: > > If you are getting motion oscillation, I suspect it is due to the > > feedback system and not the motor. Halscoping the command and feedback > > signals should help determine

Re: [Emc-users] EMC2, Compensating for friction

2011-01-27 Thread Steve Blackmore
On Wed, 26 Jan 2011 22:03:33 -0600, you wrote: >Eric, the friction on my linear axes is not anywhere close to the friction >in the rotary table. IIRC, it takes less than an amp to move my X axis, and >over 3 amps to move the rotary table. It has a tight worm drive. > >I will indeed look at lubing