Gsender Go XY0 also moving Z axis down

gSender ❓ Question
1

When I select GO XY0 it goes to X0 Y0 which is fine, but it also moves the Z axis Down which is very inconvenientm particularly if the bit is only 8mm from the job… Can this be changed?

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2

Check out this thread, it sounds like the same problem.

3

Thanks. However, why would you want it to move down? Surely the safe thing to do is to lift the bit away from the job before moving the X and Y axis? From its position ( my example 8mm from the job) it’s not going to trigger a limit switch.
I’ve set my safe height to 2mm at the movement and will have to ensure I modify the GCode in my programs to ensure it lifts high enough at the end. My Z lift in the programs is currently set at 3mm to it doesn’t take extra time having to lift higher as it goes to different positions during a cut.

4

If you have limit switches and homing turned on then setting the safe height to 2mm will move the Z to 2mm down from the homed Z position which should always result in an upward movement in practice.

I personally don’t agree with the way they have decided to make the safe height work. The fact that entering a large safe height with limit switches and homing can result in a downward motion is just wrong to me. In my opinion something that’s labeled “Safe Height” should never result in a downward motion of the Z axis.

That’s fine and you shouldn’t need to change it. The safe height in gSender is totally separate from the safe height in your CAD/CAM software. The safe height “feature” in gSender only effects things outside of running a gCode file. Once you start running a file all gSender does is stream what’s in the file and send commands to GRBL when you hit a button like Pause, Stop, or Feed Override.

So in short if you don’t have homing turned on you want a largish safe height in gSender and if you do have homing on then you want a small safe height set. That is if you choose to use the safe height in gSender at all which I don’t.

By the way, welcome to the community! Have fun and be safe.

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5

Thanks for the welcome and advice. How do I turn “safe height “ off, which I think is the way to go.?

6

I guess entering 0 would be the way to go, thinking about it.

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7

Correct, just put zero for the safe height and it will be off.

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