I have a new Snapmaker Ray 40W. I have finally gotten it set up and working, mostly. I am trying to understand how to position the work piece and understand and accurately predict where the tool head is going to move.
I am used to an Orture that homes at the bottom left, and always started and ended there. I am trying to understand Start From: Absolute, Current Position and Origin. I was confused about the movements until I realized the X axis was somehow inverted. I found an awesome list @jimsg4 posted and $3=2 so I changed to $3=0 and now the tool head moves as expected, however now when I home the laser it goes to the bottom left. Home for the Snapmaker Ray is top left, so now it starts moving and hits the limits unless I turn it off. I checked and made sure origin was top left in the device settings.
This isn’t quite making sense to me. If $32 was 2 and you changed it to 0, you did not change the X axis operation, you changed the Y. Just to be clear, the X axis goes L-R and the Y axis goes F-R.
Where did it nome before you made this change? If it went to top left before changing $3 and now goes to bottom left, this confirms that your change to $3 changed the Y axis operation.
Why do you say X was inverted? Did it move opposite direction with the arrow keys (i.e. L arrow went right and vice versa), or were your engravings mirrored? Mirrored engravings are a result of having the incorrect machine origin set.
You are correct, that is my mistake in the axis. Let me try to restate a bit more clearly.
I had been doing troubleshooting prior to this for other machine related issues to include updating firmware. The entire time home was top left, that is where X and Y are 0.
My issue now was the tool head not moving as expected. I was not able to place a work piece on the bed and have the laser move to where I expected, so I found a video which seemed to make sense explaining Absolute, Origin and Current Position. What I am looking for is the tool head to start at home, move to a position that correlates to where I have the object in Lightburn. This is the behavior I am used to with my previous Ortur. When I moved the tool head via Lightburn Move controls I found the Y axis was moving opposite from the control input. This was a change in behavior.
I found the instruction to change $3. Again I was a bit confused as the change did not seem to have an immediate effect. I experimented changing $3 to different values, restarting the Snapmaker controller and Lightburn until the axis on both X and Y were moving as expected. At that point home was now in the bottom left vs top left.
@thelmuth your reply shows “$32” and @soniclab your reply is for “$23”. I edited “$3”. Is there a list of what these values are representing?
Oops, yes I transposed the numbers, sorry. Before making changes, copy your current settings for a backup. Trust me in this.
This gives the standard GRBL Settings with a brief description. It does not include any manufacturer specific settings.
What you’re saying is when you click the home button it goes to bottom left, but it doesn’t actually home there because there is no limit switch in that corner, correct? Make the corresponding change to $23.
