Setting XY limits for wasteboard

[tgd04 (Tom Drahos)]

I have a new 4XXL and I’m having issues with the boundaries. When I went to surface my wasteboard, I noticed I was able to go right up to the front edge of the machine in the Y direction, but I am several inches away from being able to reach the back part of the wasteboard.

I recently got a bitsetter and I’ve noticed that it seems to throw off the Y zero when it comes to the front for bit changes. Seems like it’s trying to go beyond the Y boundary.

This leads me to wonder if the boundary is translated forward slightly causing it to miss the back and try to overshoot the front. How do I fix this? Currently XY sizes are both 835.

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

I wrote a bit about determining the machine limits at:

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…

[neilferreri (Neil Ferreri Ω)]

What Y position do you have entered for your BitSetter location?

[gdon_2003 (Guy Donham)]

The table for the pro and 5 have this issue. The physical limits of the X is reduced to accomadate the dust collection that extends beyond the width of the z assembly. You can increase the congig for x just dont go past the physical limits.

I wrote a doc for 3 models that can be used if you want a supplemental waste board on top of factory base.

spoilboard_considerations.pdf (1.3 MB)