When using workspace setting (G55, G56, etc.), following completion of a toolpath it resets to G54. When working with multiple tool paths at the same workspace this can be problematic. Is it not possible for the workspace setting to be remembered until I need to change to a different workspace.
Soft Limits still doesn’t allow for normal jogging within the safe work limits.
I get random ‘Hard Limit Alarm’ warnings when running toolpath’s within safe limits which stops operation requiring a reset.
When a hard limit is reached, you have to Clear it and move twice to resume normal operation. I would think that once should be enough.
Slog through the following link, and you’ll eventually find some information on your #2 statement. I’ve just taken to making macros and adding gcode to my programs to get back to the workspace setting I’m working with.
Hi NeilFarreri, you replied to saskia’s post about the system remembering the previous session’s x and y zero positions. In my case, once I finish a cut, the tool retracts and goes to a zero location from few jobs ago. This did not use to happen before the last software update, is this normal for grbl like you said in your reply? When I was done with a cut today, my CNC started moving to the previous location and crashed into something I had on the table. Do you know of a solution for this?
I am not very familiar with how gcode is generated so I am not able to answer that. But my process is: use Fusion 360 to setup cuts and then output it as a .nc file. I am cutting pieces of wood from a large stock material, so I manually jog to a spot where I have enough stock for the cut and then zero my x and y; I use a probe to zero my z direction. Once that is all set, I hit start to run the code. Everything cuts just fine, but the issue occurs after the tool is retracted, it jogs to a previous zero location. I tried uploading the gcode, but the system prevented me because I am a new user. I copied it below:
Thank you for your reply. I am not sure what G28 location is, Will going to the G28 explain why it goes to the previous zero location? What I will say is that I have not changed anything with how I setup jobs from Fusion, so I am suprised this has become a problem all of a sudden. Please share your post with me, although for what I am doing, I have not needed to return back to zero at the end of the job, but I am sure I will benefit from the post.
@Bruces-CNC your reported issues should now all be dealt with as follows:
This was fixed with a LongMill Firmware update. You can use the ‘Firmware’ tool in gSender to reflash and this issue should go away
The workspace reset was a bug we finally tracked down and should now be fixed in 1.0.6
Should also be fixed now - especially after you update your firmware
Depending on the version of your machine you might need to look into using the resistors we recommend for the older machines to prevent false triggering of the switches: Custom Limit Switches - LongMill CNC
This is something that used to be even harder to deal with with how GRBL handles hard limits but we gave gSender a few smarts in these cases. I agree that making the pull-off a single move would be ideal though so it’s something on our to-do list
I’m going to close this thread since it’s pretty old at this point but if there are still any remaining issue or questions you can start a new one and ask away and then just link to this old one