Hello list, I'm new to CNC but not for stepper motor usage, I made my own circuit using 3 ULN2003 chips to deal each with one motor, I'm using a step sequence...
there are lots of different things you can do. Q1? ) Do you want to maintain a "holding" state for the motors ? Q2?) Can we find out what your circuit...
Hello.. The power disipation of stepper motor is related to speed. Lower speed bigger disipation. But if you stepper is overheated when stop then your's design...
About cuting power yes I tought in that and come to the same conclusion you write here, what kind of bridge do you use?, can you send an URL where to see a...
Hello... I have no web page. The bridge controller is L6207 and AVR microcontroller. I use two signal wire from TCNC to control it. (Known as quadrature) as...
You don't have to replace your ULNs. Despite what was said, I was recommending monitoring the state change of ALL axes. Good Luck Gus Calabrese ... [Non-text...
HI I have a unipoler drive that works fine on small motors I have around. I now am trying to pick up used motors on the internet, frame size 34. Some are...
OK I'll try this again Yahoo really messed with the lay-out. Why do we need to give a X-root Dia and a K- det of thread?? If you go to the root wouldn't the...
... others besides the K_D_F_A ... Hi Victor, I personally prefer G33. It fairly easy to program, and I can control the depth of each pass. Here's an...
Stan, it does sound easy, How ever I guess I don't understand the G33 cycle. does the cycle take care of retracting x and z? or do you need to program that in...
Hi Vic, Yes, the X & Z retract automatically. That's the beauty of a canned cycle. The immediate difference between G76 and G33 is you can make a thread with...
Hi Stan, Thanks for the help. But I'm still having issues. when it gets to the G33 line it looks for IJKXYZ are you using TCNC??? if so is it the latest ver...
This is just because the servo driver has quad encoder inputs and stepper motor drivers do not. I'm a retired EE and can get the quad encoder inputs into the...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the turbocnc group. File :...
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Sep 5, 2008 7:30 pm
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Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the turbocnc group. File :...
turbocnc@yahoogroups....
Sep 5, 2008 7:33 pm
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got a problem trying to make the statusbar context- sensitive. Golds BarSetActive(Id: Integer,On: Boolean) does not work... i mean it is possible to disable...
... You can actually close the loop between the driver and motor and leave the controller out. Closing the loop on a stepping motor is harder then on a servo...
... quad ... that's ... the ... the ... axis ... to ... leave ... steps. ... this ... send ... on a ... This is exactly what I want. Is there going to be a...
... It's simply going to be a stepping motor driver with a rotary encoder for the motor. So you connect the driver to a breakout board as you would with a...
Hi It's unlikey there'll be any software changes to TurboCNC, there has not been for the last ?? 6 years or so. You'd be better off implementing an external...
... Mach 3 doesn't need to know about it. this is (and should be) a hardware solution. the hardware driver is told to make 10000 steps. it keeps track of...
Otherwise, if you're going to go this much trouble on a stepper, rather just built a DC motor servo drive, using your encoder. No more lost steps, faster.... ...
I have just replaced the Z-axis lead screw nut with one that has more friction and a whole lot less play than the original one. Now, when I first press the...
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