Hey!
Love the new release and was excited to try it out. Running into a few problems…
The first and row has a large skip partway through the print. I let it go and the second row went well. But then the 3rd row skipped again… Any reason why?
The skip is about 2.7mm
I understand that we are still in the beta stage with this. Hopefully this will help iron out some of the issues. Are these widespread issues or is my glowforge just wanting to be lazy and not go faster than 1000 speed?
Actually - after looking at it closely, the engraving looks like it is close on to the accuracy of where I wanted it, but the cuts are off to the left. In my screen shot of the app, the engraving is centered in the circles, but the actual cut is off to the left.
I was running it at 3200 speed with 270 LPI and Full power.
I have not seen it happen recently but just very rapid changes in direction can jump the settings and then until you turn the machine off and back on again the head will not be where the Glowforge thinks it is.
I’m sorry about the trouble with your print results when running at higher speeds. Regarding your alignment, since your unit engraved first and then cut, the cut being misaligned is likely related to the shift in your engrave.
Could you check the tension of the belt below your laser arm for me?
When pressing lightly on one side of the belt, the other side should not move.
Like this:
(You should see an animated image above)
Let me know if the belt is loose and I will follow up with your next steps. Thank you!
The belts move very slightly like in the animated image you sent. The right side moves incrementally more than the left side, but they don’t seem to move much more than the animated image you sent.
The issue here would be with the X-axis belt on the gantry itself, not the two on the sides. It’s the one that moves the head left-to-right. That wasn’t clear in Ivan’s response.
I’m relatively certain that kind of skip would have to be a mechanical issue but I don’t understand how or why - the head does not slam to a halt and reverse, there’s not really a lot of stress on it despite the higher speeds.
Right and the fact that it engraved the middle row just fine.
The 1st and 3rd row engrave is skipping and the cut is off to the left of the engrave about 5mm on all of the rows… Makes me think it’s a software issue.
But I don’t know.
I get it’s a beta release and I was excited about it. I was just wondering if anyone else was getting these types of issues with 3200 speed.
Once the belt skips, it will stay there, mis-placed, unless it skips again, and the machine doesn’t know where the head is after the initial centering. In your case, it skipped twice.
Despite being tight, you might want to try the belt tensioning procedure, which is on the air assist fan cleaning page, iirc.
edit - no, it’s not, darnit. I know I’ve seen it somewhere but can’t think where. Might have been a support post in response to an issue, sorry.
Thank you for the additional information about what you found after checking your belts. As a next step, please take a picture of the pulley beneath the right-hand side of your laser arm, similar to the following photo:
Hello!
Nope - they all look and feel good, strong and intact.
Have there been any other cases of it skipping and cutting off as compared to the engrave with the higher speeds?
