... Speaking of which ... I finally found a few hours to sit down with the code again. So long since I even had 10 minutes to look at it, I'd forgotten half...
... Can anyone tell me the accuracy of microstepping? I know it will be dependent on shaft load but is there a general approximation as to the accuracy of the...
I usually dont post to this kind of post either, but... Occationally I will look for geckos on ebay. In all my searches, I have found, maybe 2-3 auctions....
From: "Polaraligned" <polaraligned@...> ... Hi Scott, some manufacturers specify the microstepping accuracy for their motors. I think I saw a data...
... On a Bridgeport milling machine? Well, it already has ballscrews, so I really don't know how you can do that. Of course, not machining anything with a ...
Accuracy depends on: 1) Motor and drive accuracy or, "it takes two to Tango". Both have to be accurate. Ideally every microstep should be the same size. An...
I'm just kicking around an idea here I'd like to pass by everyone. What would you think about coming up with a new step/direction interface standard for motor...
I see what you are getting at with the one signal interface. I think that your proposed interface might be more noise sensitive. By using a 2 uS pulse you...
We would be delighted to make the necessary changes in our software to accommodate the single line concept for step and direction commands. I think that 2 us...
... I remember discussion of this idea and quadrature input types some time ago (and the fact that you can get them for free in the FPGA). I see two attributes...
... 7) it's inherently non-realtime, and has a 1 millisecond cycle rate. You're describing a controller (a la G200x), not a driver. USB is unusable as a hard...
Sounds potentially practical to ME. I haven't put pencil to paper, yet, but I wonder how practical/difficult a circuit to translate separate CW + CCW + ...
Using a dual retriggerable monostable with two time-periods set by R/C selection, both triggered from the "one wire" would give you TWO outputs, one "S" and...
In a message dated 6/1/2005 9:46:46 P.M. Central Daylight Time, dshah@... writes: I think that 2 us should have a tolerance to be sure.<< Might even...
Mariss - I think it would have been a great idea around the time that S&D was being invented, but... Not clear to me that the advantages are great enough for...
... <mariss92705@y...> wrote: <snip> ... (a) Naughty people like me who get rid of noise with an RC low-pass circuit in a breakout board would probably be...
... I don't like it. Steven Padnos beat me to it, the main issue is that software based step generation does _not_ like fixed timing requirements. The code...
... being ... to be ... plug-together ... Geckos), ... Probably not ... numbers of ... of the ... both at ... don't fix ... I really like the idea and the...
The new PMDX-131 Combo breakout/motherboard for the Geckodrive stepper motor drivers (G201, G202, G204V, G210, and G212) is now available. The slight delay in...
Mariss: I understand where you are coming from. Silicon is cheaper than copper. The only problem I have is with embedded control software. It's a challenge...
Steve: I am in the process of learning how all this CNC stuff works. One question Do you need one gecko drive for each stepper motor you plan to have on your...
Dave, You will need one Gecko driver for each motor. Each printer port, and each PMDX-131 can normally work with up to 4 motors. If you are planning a 5 or...
Steve; Thank you for the information. I have a vision of a CNC router with 4 axis It would be used to round wood flute blanks with a flat spot about 3.5" long...
Only 2-1/2 weeks until the CNC-Workshop!!! We have 75 CNC "Nuts" registered and another 40 thinking about it!! Don't Miss out - It is the only show dedicated...
Hi, Two unrelated projects: 1) G202/G212. I have made a G202_G212 Stuff folder in the files section and uploaded the installation notes (manuals) for the new ...
Art, I really don't think Steve Hardy overstated when he said the consequences will be earthsaking. This is someting I'm really happy to be working on. Mariss ...
... Once ... I used to run a machine with a controller specialized in high speed machining. it would constantly change the feedrate in order to maintain the...
