Hi, I've been running with the bd sensor for several months now, and am almost happy with it. I'd like to improve my setup but am running into some issues. This is installed on a Voron Trident with Stealthburner.
The primary issue is that using contact homing drives the bed into the toolhead with too much force. At first it would never sense the contact. In order to get to where I am now, I had to lower the driver current on my z motors. Even now, though, it still deflects the toolhead and leaves dimples in some of my build plates. I am using the speeds recommending on the wiki.
The main thing I'm not liking here is that I have to do the contact homing before the z tilt operation and then a non-contact home afterwards. If I do the contact home after z-tilt, one or more of the z motors will skip or stall effectively ruining the z tilt that was just done.
I would like to know how to configure my homing sequence to reduce the force needed and be able to do the contact home after z tilt.
The second issue I'm seeing is that when using the eddy functionality (fast bed scanning), all of the points seem to be in increments of 0.01mm. For my previous probes, I was using a threshold of 0.0075mm. With the resolution provided, I seem to need to use a tolerance of 0.02mm to get successful tilt operations. The printer frequently can't get the probe values to be the same (or only deviate 0.01mm) and the diminished resolution seems to cause the tilt calculations to overshoot or oscilate.
The third is probably the least important, but I'm seeing waves in the bed mesh that appear to be artifacts in the manufacturing process of the spring steel. Rotating the spring sheet will rotate the waves in the mesh. The primary problem is that it seems that the values appear to vary more than the actual bed does. I need to revisit this one some more with further investigation, but the first layer seemed to over compensate. I'm getting better results with no bed mesh, whereas the first layer was inconsistent in ways that corresponded to the waves in the bed mesh. I have a very good aluminum plate that really doesn't need a mesh, so this isn't too critical for me.
Hi, I've been running with the bd sensor for several months now, and am almost happy with it. I'd like to improve my setup but am running into some issues. This is installed on a Voron Trident with Stealthburner.
The primary issue is that using contact homing drives the bed into the toolhead with too much force. At first it would never sense the contact. In order to get to where I am now, I had to lower the driver current on my z motors. Even now, though, it still deflects the toolhead and leaves dimples in some of my build plates. I am using the speeds recommending on the wiki.
The main thing I'm not liking here is that I have to do the contact homing before the z tilt operation and then a non-contact home afterwards. If I do the contact home after z-tilt, one or more of the z motors will skip or stall effectively ruining the z tilt that was just done.
I would like to know how to configure my homing sequence to reduce the force needed and be able to do the contact home after z tilt.
The second issue I'm seeing is that when using the eddy functionality (fast bed scanning), all of the points seem to be in increments of 0.01mm. For my previous probes, I was using a threshold of 0.0075mm. With the resolution provided, I seem to need to use a tolerance of 0.02mm to get successful tilt operations. The printer frequently can't get the probe values to be the same (or only deviate 0.01mm) and the diminished resolution seems to cause the tilt calculations to overshoot or oscilate.
The third is probably the least important, but I'm seeing waves in the bed mesh that appear to be artifacts in the manufacturing process of the spring steel. Rotating the spring sheet will rotate the waves in the mesh. The primary problem is that it seems that the values appear to vary more than the actual bed does. I need to revisit this one some more with further investigation, but the first layer seemed to over compensate. I'm getting better results with no bed mesh, whereas the first layer was inconsistent in ways that corresponded to the waves in the bed mesh. I have a very good aluminum plate that really doesn't need a mesh, so this isn't too critical for me.