md, this was explained recently. If you mean 2 each on a single axis control and 2 on another. The PC par port signal is split out to the two motor drivers for...
Why not do it with the hardware? Send the same signal to two of the stepper drivers? Tom ... From: CNCPro@yahoogroups.com [mailto:CNCPro@yahoogroups.com]On...
RichD, I read in another forum splitting the step and dir signals was very difficult to achieve. Even the cable lenghts had to be exactly the same and...
mxd, HaHa !!!! Don't believe everything you read on the net. Unless your drivers are miles apart it won't make any difference. You will have to buffer/boost...
Huh? Set the 4th CNCPro axis to "Follow" one of the others, forget which label, eitehr A or W defines this. No need to split the port, it's already defined....
Hi all, nearly finished building the small 3-axis PCB router that I am building and would like to use CNCPro as the main system but getting confused over...
Gus, Correct answer is None of the above. Doug Yeager (original author) released the program and source as Public Domain. Look in the files for an unlocked...
It is now FREE as it has been put in the public domain , you can download it from the files section . -- Ron Kline American Precision Ceramics .. (Industrial...
Hi. With CNCPro being open, has anyone modified the code to support phase drive? And be willing to post it? I'm using Turbocnc at the moment, and would like to...
Ok thanks again, think I have got it sorted now, deleted all the old files and downloaded again and seems to be working fine, thanks for help/info. Now to get...
Thnaks for the answer but I have downloaded and extracted every file I can find and they all do the same and after a few moments a little screen appears and...
... Hi, Gus: Visit the web site groups.yahoo.com/group/cncpro Click on "files" in the menu to the left of the window Click on the "UserBuilt" in the folders...
The short answer is that you need a modified version that has the license stuff removed. You can compile up a version for yourself if you are so inclined, or...
This is the link to the post I was talking about. Sounds like they know what they are doing about connecting the 2 driver boards to the same step/dir pins. ...
md, the only possible problem mentioned before is the PC par port voltage level may not support driving 2 loads if even 1 load. A buffer board/filter is always...
Did What is the main chip in your buffer circuit? I tried looking for one under "parallel port buffer circuit" without any luck. Long time ago I built one I...
md, looking at many old computer type boards you will see many bus buffer chips. Would you believe>>>>>>74LS244? I robbed them and dead roach built a buffer...
Hi mdx It sounds like there's some confusion as to why connecting two drives to one line is not the best idea. The nature of a parallel port is that it is...
Thanks so much for this explanation. Now I understand better what is going on. The drivers I am using are based on the L297 + 4 TIP120s. I bought the plans for...
md, be sure to set the L297 for 1/2 step mode. If you have Win98 SE loaded it has support for USB so you can use a flash drive to transfer files quickly. ...
RichD, The instructions in the manual give you the choice to wire the motors full or half step. I did them full to get more torque (the manual recommended full...
md, what you have is the old LR drive. Very inefficient. A LOT of power is wasted in heat. By adding the L298 (driven by the L297) you step up to a modern ...
... Motor supply voltage is what will give you better speed performance. Hopefully the design is utilizing the L297's ability to be a current chopper. I...
Hi to All, The subject is an Automatic Drawbar for the R8 Spindle. Checkout this thread going on in the CNCZone, should be a great source of Mach3 input. ...
... Why do you want to move both steppers in sync? If you are cutting out R/C airplane wings, this would restrict you to constant cord wings. Foam cutting...
I wanted the foam cutter for sculpting large figures or cutting large flat geometrical figures, no airplane wings (although it is a very interesting...
hey all, I'm new here and am interested in learning something about CNC'ing and CNCPro.. Anyone know where the FAQ is? I searched this group and got nothing, I...
Hi Nick, There really is no faq here as the group is only for support of the CNCPro controller program (formerly sold by YA). There is a recently updated users...
I have my machine sitting to the left of me. The X axis positive displacement moves from left to right which is perfect for me. BUT my Y axis (that is standing...
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