Has anybody done any work on adding SPI functionality to the source please?...
4771
Drew Rogge
drogge47
Aug 1, 2003 3:09 pm
Thanks for taking the time to explain Mariss, I think i may understand now. Drew ... -- Drew Rogge drew@......
4772
jcc3inc
Aug 1, 2003 4:35 pm
Gentlemen: I read with interest the comments on Constant Velocity countouring. Since I recently completed this addition to my controller, here are some...
4773
irfan_younis
Aug 1, 2003 4:59 pm
Hello guys, I would like to control Permanent Magnet Servo motor with turbocnc. The motor 127 volts and 7.8A. Any body can tell me that which servo drive can...
4774
gittt2000
Aug 1, 2003 5:05 pm
Irfan, The Gecko drives only go up to 80 volts, but Rutex do both a 100 volt and 200 volt drive, both which take the Step and Dir signals from TurbCNC and an...
4775
Mariss Freimanis
mariss92705
Aug 1, 2003 5:07 pm
Drew, I should have working test code for CVC over the weekend using this technique. I'm very curious to see what the results are; I'm using a pen that traces...
4776
Alan Marconett KM6VV
km6vv
Aug 1, 2003 7:18 pm
Hi Jack, Thanks for the overview, and the offer of help. Where in the "stream" do you put the 20 block array? At first I was just thinking of buffering the...
4777
Antonius J.M. Groothu...
grootcnc
Aug 1, 2003 8:35 pm
Alan: This is very general, but should serve to illustrate the concept. After, preprocessing, parsing, and G-Code interpretation you end up in a movement...
4778
Alan Marconett KM6VV
km6vv
Aug 1, 2003 10:46 pm
Thanks Tony, This confirms my suspicions! I've got to work a little on getting the proper parameters identified and into a structure, but I can work through...
4779
Antonius J.M. Groothu...
grootcnc
Aug 2, 2003 12:45 am
Alan: It will be a interesting project and a lot of work. You may want to have a look in http://groups.yahoo.com/group/geckodrive/ Tony ...
4780
Mariss Freimanis
mariss92705
Aug 2, 2003 1:46 am
Hi, OK. Things came together much faster than I had expected. I have the moving average running on the G2002 at 10" per second, (3,000 RPM on a 5 TPI screw)....
4781
Alan Marconett KM6VV
km6vv
Aug 2, 2003 4:43 pm
Hi Tony, Yes thanks, I'm on the list! Alan KM6VV...
4782
ktool@...
mkt10121012
Aug 3, 2003 3:22 pm
I just spent the last few weekends making brackets and pulley for a nice big SLO-SYN M092-FD-420E stepper motor. I started testing my bipolar drive for it last...
4783
RichD
cmsteamer
Aug 3, 2003 3:27 pm
Mark, it already is a bipolar useable motor. You probly have one coil pair swapped so that each coil is bucking the other. Reverse a coil connection. RichD...
4784
ajordan47
Aug 3, 2003 3:37 pm
Hi Mark, Check the step and direction wires to your driver. If you have them reversed, it will act as you described. From everything that I have seen, you...
4785
ktool@...
mkt10121012
Aug 3, 2003 3:43 pm
Rich That is great news thanks a bunch. Mark...
4786
Frank-Peter Kurda
fpkurda
Aug 3, 2003 3:44 pm
RichD, ... Not at all !!! There are unipolar stepper, which can be used as bipolar, but only half of copper using. You maybe have to connect on each coil one...
4787
djunod2
Aug 3, 2003 4:17 pm
Sounds like a Unipolar motor to me. You need to use a Unipolar driver. Check out the book "Easy Step'N" to get you pointed in the right direction. Available...
4788
Carol & Jerry Jankura
jerryjankura
Aug 3, 2003 5:59 pm
Hi, Mark: This strongly sounds like you've got the step and direction signals reversed. You really want to use only 1/2 of the coils (A1->CT, B1->CT or A2->CT,...
4789
djunod2
Aug 3, 2003 6:25 pm
... Motors aren't step & direction, drivers are... ... Camtronics Bipolar ... well with ... You probably mean "bilevel chopper" not bipolar. You have to use a...
4790
jeffalanp
Aug 3, 2003 6:57 pm
Hi, As Jerry mentioned, you can easily use a 6-wire unipolar motor on a bipolar drive. There are two methods to do this. Bipolar Series winding mode, where...
4791
Mariss Freimanis
mariss92705
Aug 3, 2003 7:13 pm
Mark, If your motor takes 2 steps in one direction and then jumps that entire distance back, then one of your phase outputs on the drive is not functioning or...
4792
Alan Marconett KM6VV
km6vv
Aug 3, 2003 9:18 pm
Hi Rich, Mark. Sounds like a 6 wire motor. As the wires are labeled, shouldn't be any way to swap 'em. I'd take a HALF winding from each set, but that ...
4793
john grant
grantjoh2002
Aug 3, 2003 9:40 pm
I have taken a number of Slo-Syn motors apart with no problem. The factory cautions about taking the ROTOR apart but I can no reason for ever doing that. ... ...
4794
Frank-Peter Kurda
fpkurda
Aug 3, 2003 10:31 pm
Hi, ... and ... you ... (you ... & ... Of course, but there are unipolar steppers with 6 leads, where the TC are connected ! Not all, but its possible. It's...
4795
Carol & Jerry Jankura
jerryjankura
Aug 4, 2003 12:44 am
No, I mean bipolar. Sherline's motors have two center tapped windings. If you connect the center taps together, you've got a unipolar motor which must be...
4796
Steve Blackmore
stevepilotltd
Aug 4, 2003 1:15 am
... Might be a good time for both of you to read http://www.geckodrive.com/ycom/documents/C163R21_step_motor_white_paper.pdf and get your terminology right? --...
4797
Mariss Freimanis
mariss92705
Aug 4, 2003 1:26 am
Hi, Step motors need only two windings, that's 4 wires. If those windings are center-tapped, then it's 6 wires. If the center-taps are brought out and...
4798
Dave Hylands
dhylands_99
Aug 4, 2003 2:12 am
I thought that just using 4 wires from a 6 wire stepper, wasn't quite the same as using a 4 wire stepper. I thought that if you connect 4 wires from a 6 wire...
4799
Mariss Freimanis
mariss92705
Aug 4, 2003 2:53 am
Dave, You have two ways to wire a 6-wire motor to a bipolar drive: 1) Use only the end wires, ignore the center tap. This is identical to a series wired 8-wire...
