Well, I took the plunge and order a G100. My spindle is out for regrind so I have some time while my mill is in pieces. I saw the schematic for the isolator...
Hi Jerry, Is much simpler to purchase one of these. :-) http://homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=21 Cheers, Peter. ...
... http://homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=21 ... Well, fine then! Burst my bubble!! Ill order one when you get...
In the 340 manual (rev4) it says: (TERM. 3) ARM- Connect the RED motor lead to this terminal. (TERM. 4) ARM+ Connect the BLACK motor lead to this terminal. OK,...
Bob Step and direction signal in G202 must be high active or low active? How many micro seconds must be both signals? Eduardo ... 5 volts? ... signals to be...
Eduardo, In Mach3 with our breakout board supplying the 5 volts, the G202 needs to low active. The input is an optical isolator with one side of the input at...
The active STEP edge is the 0 to 1 transition (rising edge). The state of the DIRECTION line is clocked-in on this edge. Direction must be true 100nS before...
Mariss, Do you have the common 5 volt adapters available for the G203? Robert Colin Campbell Bob Campbell Designs www.Campbelldesigns.net Mach 2/3 breakout...
Not yet. My hope is the vast majority of users will adapt to the 'common gnd' interface. A 'common 5V' interface will still have the same problems with <5V...
Mariss, Thanks, we have shipped about 50 that will need the adapter if they order the G203. Most of our boards currently will work with the common ground...
I have the following problem. I am using Mach 3 and G 202 drives, normally it works well with the backlash compensation disabled. But when it is enabled, the...
Eduardo, I just smiled when I saw your messsage. I have the exact same problem. I am in the process of changing to smaller 400oz-in motors. What is happening...
Eduardo, You should download the latest version of Mach3. Art some made some major changes to backlash compensation and by all reports, it works better now. ...
Hi: Yeah, 1200 Oz in motors can be a problem on any system, very high detent torque. Try .053, it has a ramped backlash correction now, it may help alot.....
Art, I agree. NEMA-34 motors over 800 in-oz holding torque are designed for high torque at the expense of motor linearity. Motor linearity is paramount for...
Mariss: Yes, Id rather have a small fast motor on a reduction gearing anyday, than a big honker motor 1:1 connected. The first one IS impressive, the latter...
FYI - For those reading - the 340 manual has the wires swapped; the red is indeed the ARM+ and black is ARM-. This info from a phone conversation with Mariss...
yup.. but they are so stupid they would not know how to log in a yahoo group...so no risk there..their office is paper based...except to type letters on...
Hi evrybody, Mr Mariss,any hope we could get 4 independent quad decoders on g100? from there we could make our own FARO (R) arms,by querying the g100 of each...
Your boss sounds like ex MOD. Can you actually get a plasma cutter to 0.3mm accuracy. I don't have one, and haven't really played very much with one, but I do ...
oh don't get me wrong.. the steppers are 200 steps per rev.i microstep at 400 steps per rev. With the circumference at 119 mm on the gear head,that makes...
The original parallel port pins could source 2.6 ma, sink 7 ma and maintain 0.8 Volts down level. So says the origial IBM Technical Reference for the XT, page...
Don't be so quick to dismiss manual machining, it's not obsolete. CNC is good for production runs and things like waterjets, plasma cutters, and surface...
Hi all, I feel you are treating the 1200's perhaps a bit unfairly, while it is fine to say use servo instead, this will chase an extra $80 or so out of your...
Greg, what are you cutting that needs these big motors? Presume you have tried smaller motors and these big guys are showing you an improvement? Thanks, Gerald...
... Hi Eduardo, to solve your problem, I used microstepping let's say 1/100 step. That means your motor would need about 2000 pulses to do one revolution. It...
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