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Yep, I've been forced to use single axis controllers to perform interpolated moves. It's not the best way of doing it to say the least. A multi-axis approach, though more expensive, is probably

Tom, I am definitely interested. I noticed that US Digital also offers linear encoders for $2 per inch, which sounds reasonable. Of course the electronic "readers" are extra, but the cost should be

I would be willing to help build theprinted circuit card. But take a look at the PIC chip from JR Kerr They have a PIC-Servo chip that has PID filter and all in a $30 chip. The web site is

My mill drill did at least 66 IPM . But I have ballscrews on the x and Y axis and was using my 5 A drivers for the motor power . The motors were 300 ounce inch motors. I have solved the quill backlash

I will have the parts done next week. Dan

If there's

i saw a company with a rt-linux release cdrom. check out www.zentropix.com here's a paragraph from their product page: The Zentropix CD-ROM for RTLinux real-time extensions contains a

Dan Mauch wrote: I'd be glad to write up some stuff on CNC, especially some of the details of G-code and servo systems. I also have a bunch of stuff I've written over the past few years on Atlas

Jon Elson wrote: Using the "glass scales" was actually what I was thinking of (mitutoyo). If anyone has info on the outputs of the scales, that would be helpful, but if not, I'll digout the scope,

<PTENGIN@...> wrote: One big problem using the output of the linear encoders of the DRO to control servos is that *any* backlash between the drive motor and the workpiece can cause some pretty bad

I guess you've all seen the posts about the DRO card I built. I've got an update to the software, adding metric support, cleaning up a few things I didn't like, and changing the 4th axis to display

In a message dated 5/21/99 7:00:18 PM Hawaiian Standard Time, tkulaga@... writes: << unless there's software out there to take advantage of the encoder feedback. I haven't seen any, but

In a message dated 5/21/99 3:36:21 AM Hawaiian Standard Time, dmauch@... writes: << I used 300 oz in stepper on my mill drill with a 2/1 ratio timing belts and pulleys. >> Dan, Just how

Hi to all, Does any body have Robert Langlois email address? Or know if he is on vacation at the moment? Sent a message to him at the address he had about 18 months ago and haven't seen a

Good point; the appnote is really talking about a 1 axis solution. -- Paul Amaranth | Rochester MI, USA A

paul@... wrote:

Jon, It seems like I could rig a tach to the back end of my servo motors if I wanted , just as long as I got some kind of tach output eh? Then I could use your servo amps? How much would a set of 4

John: On the demo that I downloaded, it made mention of a no-save item as well as another cut point of a 1000 lines of code. But not that I've seen any cut-off date. Regards Don John Stevenson

Don Hughes wrote: First, you select inside area, or select all, or in some other way select what you want to copy. Then, you do a change, translate, and enter the amount you want the copy to be