ON 20070516@12:47:03 PM at page:
http://www.piclist.com/techref/io/stepper/linistep/index.htm#
James Newton[JMN-EFP-786] edited the page. Difference:
http://www.piclist.com/techref/diff.asp?url=H:\techref\io\stepper\linistep\index.htm&version=0



ON 20070520@9:08:13 PM at page:
http://www.piclist.com/io/stepper/linistep/index.htm#39222.7737384259
James Newton[JMN-EFP-786] Published and replied to post 39222.7737384259 by cvermandere

|Insert 'Those resistors are left over from an old style linear driver. They are replaced by an active circuit in the Linistepper that uses current sensing and transistors to increase the performance of the motor. Remove them before connecting the Linistepper and all should be well.' at: '<!-- 39222.7737384259 EOR -->'

<A TITLE="P-4.250.135.177" NAME="39222.7737384259" HREF="mailto:cvermandere@juno.com">cvermandere@juno.com</A> asks: <BLOCKQUOTE><A NAME="4.250.135.177">
</A> 
I purchased a stepper motor clock drive that I am planning on driving with your linistepper/ 555 pulse generator. I have no idea what the manufacturer had previously as a driver but I did notice that each common has a precision 3 ohm resistor attached to it (the windings resistance is also 3 ohms - doubling the motor's resistance): is this to draw more voltage and would this increase smoothness or accuracy (the desired features in a clock drive)? I am assuming that these resistors would NOT be useful with the linistepper?</BLOCKQUOTE>

|Delete 'P-' before: '<!-- 39222.7737384259 EOR -->' but after: '<A TITLE="'.



ON 20070520@9:08:38 PM at page:
http://www.piclist.com/io/stepper/linistep/index.htm#39222.7725810185
James Newton[JMN-EFP-786] removed post 39222.7725810185

|Delete '<A TITLE="P-4.250.135.177" NAME="39222.7725810185" HREF="mailto:cvermandere@juno.com">cvermandere@juno.com</A> asks: <BLOCKQUOTE><A NAME="4.250.135.177">
</A> 
I purchased a stepper motor clock drive that I am planning on driving with your linistepper/ 555 pulse generator. I have no idea what the manufacturer had previously as a driver but I did notice that each common has a precision 3 ohm resistor attached to it: is this to draw more voltage and would this increase smoothness or accuracy (the desired features in a clock drive)? I am assuming that these resistors would NOT be useful with the linistepper?</BLOCKQUOTE>
<!-- 39222.7725810185 EOR -->

   <LI>'



ON 20070520@9:14:35 PM at page:
http://www.piclist.com/io/stepper/linistep/4axisbuild.htm#39221.4413773148
James Newton[JMN-EFP-786] published post 39221.4413773148

<A TITLE="P-200.226.48.22" NAME="39221.4413773148" HREF="mailto:arjn@usp.br">arjn@usp.br</A> asks: <BLOCKQUOTE><A NAME="200.226.48.22">
</A> 
Electronically illiterate, but getting it together to build a small cnc in Brazil, I would like to know if there's some way of putting in optical encoders between the PC port and the linistepper control boards. How would I do this?</BLOCKQUOTE>

|Delete 'P-' before: '<!-- 39221.4413773148 EOR -->' but after: '<A TITLE="'.



ON 20070520@9:16:19 PM at page:
http://www.piclist.com/io/stepper/linistep/4axisbuild.htm#39221.4558449074
James Newton[JMN-EFP-786] Published and replied to post 39221.4558449074 by arjn

|Insert 'You could, but it is unlikely to be cost effective. In other words, just use an old, cheap computer and don't be afraid if it burns out. Optical isolation for parallel port is expensive.' at: '<!-- 39221.4558449074 EOR -->'

<A TITLE="P-200.226.48.22" NAME="39221.4558449074" HREF="mailto:arjn@usp.br">arjn@usp.br</A> &quot;<A NAME="200.226.48.22">
</A> 
Sorry, that's "optical isolators"&quot;

|Delete 'P-' before: '<!-- 39221.4558449074 EOR -->' but after: '<A TITLE="'.



ON 20070529@3:55:44 PM at page:
http://www.piclist.com/io/stepper/linistep/lini_wks.htm#39231.6269097222
James Newton[JMN-EFP-786] Published and replied to post 39231.6269097222 by cvermandere

|Insert 'Sorry for the confusion, your question is very valid. When the low power pin is connected to ground (which is the same as saying "0" or "off" or "low") then the Linistepper will be in Low Power mode. When it is connected to +5 volts (which is the same as "1" or "on" or "high") then the Linistepper will be in full power mode.' at: '<!-- 39231.6269097222 EOR -->'

<A TITLE="P-4.250.30.1" NAME="39231.6269097222" HREF="mailto:cvermandere@juno.com">cvermandere@juno.com</A> asks: <BLOCKQUOTE><A NAME="4.250.30.1">
</A> 
I noticed that on the control board the pin next to the mode pins is labeled 'low power', while on the pulse generator board the power pin is 'Hi power'? I was trying to figure out what these pins were for and came upon the explanation that the 'high' pin is to give a 1 or On signal...how is using this pin different from connecting to the +5 volts? -Is the 'low power' pin the inverse: for an off or 0 signal? Hope my questions don't seem too amateurish.</BLOCKQUOTE>

|Delete 'P-' before: '<!-- 39231.6269097222 EOR -->' but after: '<A TITLE="'.



ON 20070530@10:48:40 AM at page:
http://techref.massmind.org/techref/io/stepper/linistep/4axis2build.htm#
James Newton[JMN-EFP-786] edited the page. Difference:
http://techref.massmind.org/techref/diff.asp?url=H:\techref\io\stepper\linistep\4axis2build.htm&version=0



ON 20070530@10:50:03 AM at page:
http://techref.massmind.org/techref/io/stepper/linistep/4axis2build.htm#
James Newton[JMN-EFP-786] edited the page. Difference:
http://techref.massmind.org/techref/diff.asp?url=H:\techref\io\stepper\linistep\4axis2build.htm&version=1