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Topics - Jd

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1
Screen designer tips and tutorials / G-code button
« on: January 26, 2012, 01:49:05 PM »
Hello I have modified Benny's screen to be specific to my mill and uses. I have two problems and maybe the answer to this question will help me with the second. The problem is I like the Gcode chart that comes with Mach3 as it describes a Gcode in some detail and  I will be able to add my own notes to it at a later date. I have tried to link the Gcode button to the VB script in Mach3 to call up this file, but I only get a Script compiler error, I am not very knowledgeable about VB (CB) script but can read and understand the commands, I have copied and renamed the macro, tried putting it into another directory which I don't think would work because the call of the macro is probably in the main program. I have played with some macros and can't seem to get them to work or call up. Can some one lead me in the right direction or help with this probelm?

2
Mach Screens / Encoder zeros
« on: June 01, 2010, 11:13:40 AM »
I have set up a basic screen for some experimenting,  I am using standard X,Y,Z Dros  for the stepper motors and have added encoders to the axis,s for a comparison read out, I am using OEM DRO codes of 170,171,172 and have added buttons to zero encoders and asigned Button codes 133,134,135, when I press one of these buttons to zero a encoder it will not totally zero the encoder, I also added DRO to show differences between stepper DRO and encoder DRO using DRO codes 127,128,129 these seem to be working, does anyone have a clue to what I am missing? also in Dro code 173 would allow me to add a 4 encoder DRO but in button codes there is only button codes for XYZ ( three axis ) how would I zero the 4th encoder?.  John

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General Mach Discussion / Encoder motor control
« on: May 04, 2010, 01:11:42 PM »
Hello this is my first CnC, I just finished converting my Millrite Mill to CnC, works sweet, cutting wood and metal. I built a A axis to do lithophanes and when I set up with PhotoVcarve and Wrapper and start cutting, I will start losing steps gradually and have come to the conclusion that moving a 18 lb Quill up/down with the short moves is to much for the Z stepper, I added a counter balance to the quill which helped and made sure quill is very free. As I said I canl machine metal parts and wood plaques with no probelms once I get proper feedrates set. Now to the meat, this is my busy season so time is short, I have built a rotary encoder and attached to puter, it reads fine on the Settings encoder screen ( will need fine tuned later) but what I need it to do is control my Z axis stepper so that lost steps do not affect the work, I can not find any way to do this in Mach3, and was hoping some one might know how or if it can be done in Mach3       John

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