Is it possible to set up the Pro Series with the BB controller to home to the back left instead of the front left?
Hello Allan,
Here is a link to the one I use.
Probing back left corner - Feature Requests - Onefinity CNC Forum
It is run like a program. I have it set to a macro.
I don’t think there is any way to change the default controller buttons.
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Hey Allan,
what you can do is to reassign and/or reverse axes.
Then in fact it will home at another corner.
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Schematic Representation of a CNC vertical milling center – Source: Smid, Peter: CNC Programming Handbook , Industrial Press, South Norwalk, CT, USA, ISBN 9780831133474 |
You can also change that an axis instead of going from MOTOR X “min-soft-limit” 0 mm to “max-soft-limit” 816 mm (1220 mm on Journeyman) to “min-soft-limit” -816 mm to 0 mm “max-soft-limit”.
It’s like Z axis that homes at its top position which is “max-soft-limit” 0 mm (home) also knows no positive values, it goes from “max-soft-limit” 0 mm to “min-soft-limit” -133 mm (-167 mm) for the lowest position.
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I am not looking to probe the tool in the back left corner of the work piece. I already have a Macro that allows me to do that as I do many two sided parts and like to be able to reference the same corner of the workpiece. I am looking to be able to have my machine home to the back left when I start it up. The standard homing location for the machine is the from left which is only really setting the Y home position.
Ah, sorry. Missread.
Then what Aiph5u says above is what you want.
You mentioned changing the Motor X limits but I believe I would actually need to change the Y limit to the “max-soft-limit”… With this the x would still set all the way to the left and the Y would go to the back of the machine. Do you happen to know the max soft limit amount for the y axis for the Journeyman machine? I know that cutting area is approx. 32" (Y) x 48" (X). .
That didn’t go so well. I entered -32.126 in the min soft limit and 0 in the max and my machine still homed to the front left corner. They I go an error when I tried to use my tool change macro as it seemed the machine coordinates for Y was looking for something between 0 and -32.126. Any other suggestions? I believe the x, y, and z limits just tell the machine the amount of distance it can travel based on the 0, 0, 0 home positions.
Hey Allan,
home position at lowmost x,y is hard-wired in the source code.
What I suggested you could reassign x to y axis and y axes to x.
The other thing, assign a negative value range to an axis would require changing the post processor.
The limits range for the Journeyman is 1220 x 816 mm. Woodworker is 816 x 816 mm.
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That is a little more involved that I was looking for. I wanted to see if there was a simple setting in the controller that would allow the back left to be used for homing instead of the front left. I believe it is possible with other machines. Seems like it wouldn’t be that difficult for 1F to add that as an option. Maybe some day but it doesn’t seem as thought 1F does much development for the old school BB controllers. They seem more focused on the Elite.