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General Mach Discussion / X and Y Axis Ball Screw pitch
« on: June 29, 2008, 09:49:45 PM »
Hello to all;
My name is Ferrall and I am an CNC programmer of 20 some years but new to building CNC from the ground up. I have my own machine, welding, and fabrication shop from which I build lots of things including Three Wheeled Motorcycles (Trikes).
I am building a new CNC Plasma machine. I already have the XY table. It was a former CNC 3 axis plasma spray machine built by Miller Welder Co. For a number of reasons it did not function as expected so it was abandon. The drive table was put out as junk and I got it. It has been robbed of the motors and controllers. The drive table is built on Thompson rod ways with ball screw drives. The Y axis is what carries the X and Z axis so it is the heaviest. It is on 1" Thompson rods with a 1" ball screw with a pitch of 1" per revolution. The X axis is 3/4" with a pitch of .200" per revolution. My very first question is can the software take into account these different pitches so I can drive the lead screws directly off the motors. This would be the best and easiest way. As I said "this is my first question". I am sure there will be more as I get into the 'nitty gritty' of such a exciting project.
Thanks Ferrall
My name is Ferrall and I am an CNC programmer of 20 some years but new to building CNC from the ground up. I have my own machine, welding, and fabrication shop from which I build lots of things including Three Wheeled Motorcycles (Trikes).
I am building a new CNC Plasma machine. I already have the XY table. It was a former CNC 3 axis plasma spray machine built by Miller Welder Co. For a number of reasons it did not function as expected so it was abandon. The drive table was put out as junk and I got it. It has been robbed of the motors and controllers. The drive table is built on Thompson rod ways with ball screw drives. The Y axis is what carries the X and Z axis so it is the heaviest. It is on 1" Thompson rods with a 1" ball screw with a pitch of 1" per revolution. The X axis is 3/4" with a pitch of .200" per revolution. My very first question is can the software take into account these different pitches so I can drive the lead screws directly off the motors. This would be the best and easiest way. As I said "this is my first question". I am sure there will be more as I get into the 'nitty gritty' of such a exciting project.
Thanks Ferrall