Looks like a mechanical issue, like a slipping coupler or pulley.
Gearbest T8 CNC DIY Engraver: Engraving inaccuracies
Hi all,
I'm very new to the CNC engraver world and this is my very first project. I have everything setup and I'm running some rectangle tests cuts using Inkscape and Grbl Controller 3.6.1. However, there's a consistent mistake on the left edge of the rectangle where the bit does not go back perfectly to it's starting point. This causes there to be an offset to that edge, but the odd part is that the other edges seem to be correct. Beforehand, while engraving a more complex piece (turtle), you can also see the x-axis moving away significantly (both back and forth) from it's initial cut.
I've checked the g-code, leveled the bed, tested the hardware, and have not found a solution yet.
I'd like to ask the CNC community for some guidance on what might cause this silly issue :crying:.
I'm very new to the CNC engraver world and this is my very first project. I have everything setup and I'm running some rectangle tests cuts using Inkscape and Grbl Controller 3.6.1. However, there's a consistent mistake on the left edge of the rectangle where the bit does not go back perfectly to it's starting point. This causes there to be an offset to that edge, but the odd part is that the other edges seem to be correct. Beforehand, while engraving a more complex piece (turtle), you can also see the x-axis moving away significantly (both back and forth) from it's initial cut.
I've checked the g-code, leveled the bed, tested the hardware, and have not found a solution yet.
I'd like to ask the CNC community for some guidance on what might cause this silly issue :crying:.
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Hi all,
Thank you all so much for your response! This community is so friendly.
I went back and realigned all the rods and tightened all the screws. When doing some square test cuts (.2 depth step and 1mm deep total), they came out perfectly. Then I went on to cutting out something more complicated, the mushroom. The first two rounds were perfect, but during the third round, I hear a sort of click (I don't know where), and this caused the engraving to stray, again on the x-axis.
Thank you all so much for your response! This community is so friendly.
I went back and realigned all the rods and tightened all the screws. When doing some square test cuts (.2 depth step and 1mm deep total), they came out perfectly. Then I went on to cutting out something more complicated, the mushroom. The first two rounds were perfect, but during the third round, I hear a sort of click (I don't know where), and this caused the engraving to stray, again on the x-axis.
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Great news! While checking all your solutions, I believe I found the problem. The spindle motor wires seemed to be affecting the axis stepper motors, so when separating these two components (and again, making sure all the screws are tightened), these two engraving came out perfectly.
Thank your all for your help~
Thank your all for your help~
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Maybe Avid CNC has a good idea by keeping their VFD in a separate enclosure? Although it has been mentioned that they do it more because their main enclosure is to small.
Glad to hear you got this resolved,great find
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