[Emc-users] Modbus Serial Card CNC4PC

2007-12-25 Thread John Thornton
Anyone use the modbus serial card with EMC2? It has 4 bit analog input that could tell me my arc voltage... Also the control pendant they sell could be used with the modbus card... Any drawbacks to using this? Thanks John ---

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Gene Heskett
On Tuesday 25 December 2007, ben lipkowitz wrote: >On Mon, 24 Dec 2007, Geert De Pecker wrote: >> To do threading on the lathe is the end goal. I'm still in the >> development phase for the encoder bit. Want to make it myself >> (see part of drawing at http://users.skynet.be/gedp/FILES/index.html).

Re: [Emc-users] Modbus Serial Card CNC4PC

2007-12-25 Thread Kirk Wallace
If you you just need one channel of ADC, my DAC setup: http://www.wallacecompany.com/machine_shop/EMC2/serial_dac/ could be modified to run an ADC like the LTC1286: http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1155,C1001,C1158,P1445,D2760 It would take up two parallel port outputs

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Kirk Wallace
A while back, I tried printing an encoder with my CAD program. I didn't get very good results. My laser printer's resolution, which is great for printing documents, was lousy for encoders. What resolution and how small a disk is possible with your method? Although, I suppose for a spindle, a larger

[Emc-users] Fw: EMC ignoring G2 codes

2007-12-25 Thread Alex Joni
the list, I removed the attached image, and put it up at: http://imagebin.org/12581 It will only be there for a couple of days though.. Regards, Alex> - Original Message - From: "Andy Lee" <[EMAIL PROTECTED]> To: Sent: Tuesday, December 25, 2007 1:15 PM Subject: Re: [Emc-users] EMC i

[Emc-users] EMC configuration issues

2007-12-25 Thread Jesús Bas
Gentlemen, Here I'm again. You will remember my previous mails related to stepconf and the configuration dificulties I was suffering to make my EMC runing properly on my Dell laptop. Now, fortunately I have resolved the problem and I would like to share with you my experiences just in case they

Re: [Emc-users] Fw: EMC ignoring G2 codes

2007-12-25 Thread Chris Radek
On Tue, Dec 25, 2007 at 09:17:49PM +0200, Alex Joni wrote: > the list, > I removed the attached image, and put it up at: > http://imagebin.org/12581 > > It will only be there for a couple of days though.. Thanks Alex! > >This apparent Z level sensitivity is interesting. The machine boundaries >

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread ben lipkowitz
I would feel confident printing 256 lines on a 2 inch diameter encoder, with my 600 dpi HP laserjet 1018, but I haven't tried it out with a sensor yet. At 512 lines, the spacing between lines starts to look uneven. A 7 inch disc with 1024 lines looks pretty good. Kinko's has 1200 dpi laser prin

Re: [Emc-users] Modbus Serial Card CNC4PC

2007-12-25 Thread John Thornton
Kirk, Thanks for the reply. Are you suggesting that I do something like you did but in reverse somehow to read the voltage with EMC? I understand that the usb port can handle analog 0-5v inputs from a joystick. Perhaps something that would scale the 0-220vac to 0-5vdc that I could somehow u

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Dave Engvall
If anyone wants to etch a disc I can probably find an 30 mL or so of KPR. For best resolution make a 4X image and then photoreduce 4X on to film and use that to expose the KPR. It makes beautiful circuit boards that way. Dave On Dec 25, 2007, at 12:42 PM, ben lipkowitz wrote: > I would feel

Re: [Emc-users] Modbus Serial Card CNC4PC

2007-12-25 Thread Kirk Wallace
On Tue, 2007-12-25 at 14:58 -0600, John Thornton wrote: > Kirk, > > Thanks for the reply. Are you suggesting that I do something like you did but > in > reverse somehow to read the voltage with EMC? Yes. Both the DAC and ADC move the data in the same way, by clocking in or out one bit at a ti

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Kirk Wallace
KPR? Kentucky Paranormal Research Kawartha Pine Ridge District Public School Board On Tue, 2007-12-25 at 15:42 -0800, Dave Engvall wrote: > If anyone wants to etch a disc I can probably find an 30 mL or so of > KPR. > > For best resolution make a 4X image and then photoreduce 4X on to > film

[Emc-users] Additional I/O Modbus card.

2007-12-25 Thread Peter Homann
Hi, Just a quick not before I head bush for the Christmas camping trip. For additional I/O via Modbus have a look at the ModIO. It has discrete inputs and outputs, analog inputs, a 20x4 character LCD interface, plus a few other interfaces. http://homanndesigns.com/store/index.php?main_page=pro

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Dave Engvall
Good try. KPR is a photoresist made by Kodak. It is good enough to do wafers. It needs reasonably energetic UV to polymerize and then toluene to dissolve off the non-polymerized part for etching. D On Dec 25, 2007, at 4:15 PM, Kirk Wallace wrote: > KPR? > > Kentucky Paranormal Research > Kaw

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Jon Elson
Dave Engvall wrote: > If anyone wants to etch a disc I can probably find an 30 mL or so of > KPR. > KPR is abominable to work with. I have DuPont Riston dry film photoresist. I have laminated it onto .005" and .003" brass shim stock with my dry film laminator machine. It has heated Silicon

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Jon Elson
Kirk Wallace wrote: > KPR? > > Kentucky Paranormal Research > Kawartha Pine Ridge District Public School Board Kodak Photo Resist, a Xylene-based organic photo resist that is hardened by exposure to UV light. It is very "old school" and not only requires nasty chemicals, but is quite fragile.