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Show"N"Tell ( Your Machines) / Re: converted Sieg SX3 to cnc
« on: June 13, 2012, 10:55:39 PM »
Hello ninoz:
As I understand the problem, you would like to have the rotary table flat, with the machine Z axis perpinducular to the rotary table face. One way to generate a program to use only the X axis, and the rotary axis would be as follows.
Put a dowel pin, same size as the cutter you will use in the spindle collet.
Clamp the machined star wheel in the rotary table, and set the X0.00 on the rotary table center.
Start the measurement at the center of the shape. You only have to digitize one half of the shape cut-out.
Jog the X axis until it just touches the wheel cut-out at center. The rotary table is 0.00, and the X is some positive value.
Write down this X,A dimension. The A dim at center will be 0.00
Jog the X slightly + away from the star wheel.
Advance the rotary table 1 degree. Be sure the wheel does not touch the pin before the rotary table gets to the next degree position.
Jog the X axis in the minus direction again, until it just touches the wheel again.
Write down this X,A dim
Repeat this process until you reach the outer corner.
By the looks from the picture, one half of the wheel cut-out is about 20 degrees.
As the dowel pin get near the end of the pocket, the X will be rising faster, so you might want to make the A advance 1/2 degree per step.
Now you can copy the data points in reverse order, and join the two columns.
You should have a list of X*.***,A*.*** coordinates that would drive the machine to cut one Star-wheel pocket.
You can increment the A dimension with G91 by 60 degrees, and repeat all the way around.
Have fun.
As I understand the problem, you would like to have the rotary table flat, with the machine Z axis perpinducular to the rotary table face. One way to generate a program to use only the X axis, and the rotary axis would be as follows.
Put a dowel pin, same size as the cutter you will use in the spindle collet.
Clamp the machined star wheel in the rotary table, and set the X0.00 on the rotary table center.
Start the measurement at the center of the shape. You only have to digitize one half of the shape cut-out.
Jog the X axis until it just touches the wheel cut-out at center. The rotary table is 0.00, and the X is some positive value.
Write down this X,A dimension. The A dim at center will be 0.00
Jog the X slightly + away from the star wheel.
Advance the rotary table 1 degree. Be sure the wheel does not touch the pin before the rotary table gets to the next degree position.
Jog the X axis in the minus direction again, until it just touches the wheel again.
Write down this X,A dim
Repeat this process until you reach the outer corner.
By the looks from the picture, one half of the wheel cut-out is about 20 degrees.
As the dowel pin get near the end of the pocket, the X will be rising faster, so you might want to make the A advance 1/2 degree per step.
Now you can copy the data points in reverse order, and join the two columns.
You should have a list of X*.***,A*.*** coordinates that would drive the machine to cut one Star-wheel pocket.
You can increment the A dimension with G91 by 60 degrees, and repeat all the way around.
Have fun.
. A nice little unit as I recall, but after looking at all the Cubloc stuff, I choose that particular brand. 
