G sender park issues

gSender ❓ Question
1

Does anyone else have a problem with “parking”.

I have broken more bits after setting park location than during any other action.

I set mine today and then went back to my xy and pressed park to test and instead of going to a safe z height it went down to below my spoil height and broke my bit. I’ve had the same problem in reverse, where I’m at park and press go to xy zero and the zed goes down and then over?!?! why would you ever want to do that? There must be a setting that says always go up before traveling x and y?!?

Please someone help me find what setting to change so I stop breaking bits!!!

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2

I don’t know which version of Gsender you are running, or if you are using metric units, but, try this:

Go to your safe Z height setting in configuration, set the safe Z height to “0” (zero), now when you go to XY zero, the bit shouldn’t raise any, only XY should move. There was some sort of bug that made some calculation error when converting from inch to metric. Not having Z move prevents the error, at least for me it did. You just have to be sure there is a clear path for the machine to actually move to your XY zero without raising Z. Or, you have to move your Z to a safe height before sending the cutter to your XY zero.

3

Thanks. Seems counter intuitive, but I guess if a bug is the problem I have to think like the bug…

I would rather have Z always move up from where it is upon going to xy 0. I wonder if there is a way to do that.

Also while im at it is there a way to make it go to a certain place other than xy0 at the end of a job?

If I could do that I wouldn’t need to set up a park space….

4

The safe height in gSender works differently depending on whether you have homing enabled.

An excerpt from Using gSender - gSender Docs.

Safe height movement: this number is used when using the ‘Go to’ buttons in gSender to manually move your machine around (it’s independent from a safe height you might set in your CAM software). For machines without homing, entering ‘5mm’ will make it move 5mm upwards from the current position, make the Go to movement, then move 5mm back down. If your machine has homing, it’ll move to 5mm from the max Z-axis travel, make the Go to movement, and then return back to where the bit started. This behaviour helps homing-capable machines to reach a more ideal safe height to avoid collisions during movements.

Not sure if this is causing your problem but it’s definitely something to be aware of if you set a value other than zero for the safe height in gSender.

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5

I had a similar problem after setting x,y,z to zero, I would move the z up a little and then press XY and it would jam the bit into the wood without going to XY. I not sure what was causing it but if I send the unit to HOME and then to XY it worked ok.