Did you make the change to $10?
Can you run these commands in Console and return output?
$H
$$
?
You may be just moving way too quickly for the mechanics on your machine then. I suggest you dramatically slow your speed for any line operations.
I did make the $10=0
Around what speed would you suggest for the lines? I believe my Fox Alien 4040XE max suggested speed is 2000 I usually run about 1300-1500
For anything other than broad sweeping lines that’s likely much too fast. Reduce by an order of magnitude. Try 500 mm/min. Then check results and adjust as necessary.
Can you still run the commands in Console and return output. I’d like to confirm that the offset is working as expected.
Yea I can’t right this moment but as soon as I can get over to it I will send a pic of them
The position post homing looks fine.
When you tried running the X what did you see happen? Please be as descriptive as possible. Or take a video of what’s going on.
Are you moving the laser head by hand at any point after homing? If so, refrain from doing so. Move the laser using the jogging controls exclusively after homing.
I’m not adjusting my laser by hand ever except for the z axis when making sure my laser is the correct height. I’m not sure it will let me add a video. I’m currently running a test on two circles with the speed lowered to 500. Does the engraved circle have to be 500 or just the layer running on line
It didn’t seem to elongate running both the fill layer and the line layer at 500 speed but going that slow it definitely looks like 30% power was too much
Just the layer with the line operation requiring many fine movements. Engraving uses scanning motions that can be set much faster without issue.
Has this corrected the geometry issue? As for power, you’ll need to adjust down relative to speed. So if you halve your speed then power typically needs to come down by a half as well. It’s typically not perfectly linear but a good start.
You’ll need to host externally and link here.
I see evidence of backlash or mechanical slop in those first offset scan pics. Especially in the outline text.
That looks like a really heavy gantry and laser head setup. The low speed limits suggest Fox Alien knows this. I’d suggest triple checking roller and belt tensions. I think you’ll need some extra tension to control the mass.
If you look at those alone I would agree. However in the previous circle tests there isn’t really any evidence for it so to me it looks like it could be from flex in the system due to lack of rigidity.
I would tend to agree, but I hesitated to suggest sourcing upgraded, reinforced belts and/or rollers.
Perhaps lowering accel values…
Yeah… it’s really going to be about narrowing down to root cause through various testing. I’m not fully convinced that there aren’t any remaining mechanical issues but I’m sure they’ll present themselves as things get tuned.
Okay so I ran an X from absolute coords two times in a row as a line layer at 500 speed and 10% power it looks like it hit same lines both times. I don’t see any deviations.
That’s good. Can you try rerunning the original job but with the updated speeds?
What were the settings for the two layers?
Try these tests:
- create a simple filled shape. Run the job twice. What are the results? Do the shapes overlap?
2 . create a filled square with another square that goes perfectly around the filled square. Place on different layers. What are the results?
Please return photos.
Currently running those tests. On that last test it didn’t return perfectly back to home
The settings for the two were
- Fill 600 speed 10% power bi directional
- Line 500 speed 10% power
I’m watching it run the second fill on the simple shape (circle) and it didn’t go back to home all the way after finishing it the first time so the second run is off