Surfacing XXL Hybrid Table

[Goshawk29 (Jim)]

This is a totally newbie question. So I have tried to read through others posts regarding surfacing the XXL hybrid table and have a few questions.

Disclaimers…I understand surfacing the hybrid table will leave “lips” on outer edges and I’m ok with that…for now. I am just trying to get basics understanding down. Using 1.25" surfacing bit. Having trouble understanding how set zero to proper location so I don’t crash machine when working at the edge extremes.

The Pro XXL work area is x axis 870 x y axis 850 correct?

So I created a square in those dimensions in CC, and generated a pocket toolpath. Do I set toolpath zero to use the center, and rapid position to “C” and zero axis’s out and start?

If I use lower left, how do I find extreme lower left limit of machine when jogging?

I still am trying to understand and learn what the machine work dimensions are vs machine travel dimensions.

Pro XXL Surfacing.c2d (8.3 KB)

[WillAdams (William Adams (Carbide 3D))]

See:

Notes on rapid positions and wasteboard leveling

Finally taking the time to revisit this with other machine sizes. For a Shapeoko 3 the rapid coordinate positions are (assuming one has set the origin at the SW rapid position point): NW = 0, 350 N = 200, 350 NE = 400, 350 W = 0, 215 C = 200, 215 E = 400, 215 SW = 0,0 S = 200, 0 SE = 400, 0 which yields: [image] It is possible to move 5mm to the left along X on a Z-Plus machine, and 65mm towards the front of the machine, and the Southernmost Rapid Position Points are align…

[Goshawk29 (Jim)]

ah thank you Will. You also just answered another post about bit setter issues and not getting enough forward travel when selecting proper machine in setup. Easy fix now LOL.