@Irish_Steve If you're looking to upgrade your controller board then I would suggest you get a Duet2 (either wifi or ethernet). It has lots of advantages but one of the biggest for me and the reason I will never go back to a RAMPS is that configuration is so much easier. Rather than having to upload a new firmware to update settings you just edit the config files. The duet also allows for Precisby Moriquendi - General
You need to reduce the acceleration and jerk for z-probe movements. You have a lot of mass hanging off the piezo sensor so the vibration caused by starting the z-movement is causing a trigger. You will also need to drastically reduce z-probe speed to get accurate results, I probe at 2mm/s. Idrisby Moriquendi - General
With genuine Precision Piezo boards from v2.75 and up this is not a problem, just connect the two signal wires together, either board will cause a trigger. Idrisby Moriquendi - General
What kind of boards? Idrisby Moriquendi - General
First image is correct for digital operation. Idrisby Moriquendi - General
Sorry, I've only just seen this thread, most support goes through the main Precision Piezo thread. It wires to the Duet the same way. On the Duet Z-probe connector, Black to GND, Green/Blue to IN and Red to 3.3v On the universal board Black to GND Green/Blue to SIG and Red to V+. Idrisby Moriquendi - Duet
You may have the four assembly screws too tight, try loosening each one slightly (half a turn) and then retune. Also, it's possible to get VR2 180 degrees out of place, the flat side of the adjuster should be roughly closest to the short side of the PCB, if it isn't turn it 180 and retune. Idrisby Moriquendi - General
What I'm saying is that I think you have too much weight on the Andromeda sensors. Why do you need to dive 400mm? Does your bed not rest at z=0? Idrisby Moriquendi - General
Do you have any idea what the weight of the bed is? I think you may be asking too much of the Andromeda boards with 8mm of aluminium + heatbed + some sort of print surface. You might consider adding some sort of spring to take some of the weight off the Andromedas. My experience has been that the lower the probe height the more repeatable the results. Idrisby Moriquendi - General
Do you need to probe from 25mm height each time? What is the mechanical arrangement of your printer? How large and thick is your bed? Idrisby Moriquendi - General
There's a couple of things that may be going on here. First off, try loosening the four assembly screws slightly, start with half a turn per screw and then retune. Assuming you're using a bowden tube, it may be applying pressure at certain points of the XY movement, try removing the tube and see whether that helps. Also, if the wire to the Orion is not constrained it too can apply force to theby Moriquendi - General
I've just uploaded a microswiss clamp to thingiverse here. I don't have a microswiss hotend to test it myself but it's a modification of the CR10 clamp that is known to work. Idrisby Moriquendi - General
Yes, I mean the Z-min connector. You should have 0v on the GND pin, 5V on the power pin and you should also see 5v on the signal pin when nothing is connected, if everything is set up correctly. I'm not talking about rising edges or falling edges at the moment. Think of the signal line like a pipe. The piezo board cannot put water into the pipe but it can let water out. The mainboard puts waterby Moriquendi - General
I'm a bit confused as to what exactly you're describing. You refer to the PCB, is that the piezo PCB or some other pcb? The output of the PCB is open drain, it cannot push the sig pin up to 5v, it requires the controller board to pull the signal pin up via a pull up resistance. This is why you are not seeing a signal on the output of the piezo PCB. Please measure the voltage of the sig pin onby Moriquendi - General
Do you have pull-ups enabled in the firmware? Are you able to measure the voltage of the Sig pin on your controller board with nothing plugged into it? Idrisby Moriquendi - General
At whose shop? If you have received a defective product or it is not working as you expect I suggest you contact the person who sold it to you. If you bought it from me please email me your order number at info@precisionpiezo.co.uk and I will be happy to help you. Providing suby Moriquendi - General
Yes, the output is open drain, it can pull the signal pin down to 0v but cannot raise it. Idrisby Moriquendi - General
@MarcW, where did you buy your v2.75 PCB? I've been shipping v2.85 for a while now. Idrisby Moriquendi - General
Yes, I'm working on a hermera mount but not for the Orion...by Moriquendi - General
There's no practical difference. Idrisby Moriquendi - General
Hi Snowwolf, I did reply to your email but perhaps it got lost (assuming you're the same person, the questions are the same) As far as I'm aware the commonly available piezo ring elements are quite different from the piezo buzzer disks that the circuit was designed for. I have no experience of the rings and no way to know whether they would work or what might need to be changed. The current geby Moriquendi - General
@Krakow2000, Not yet but I've just bought an Ender3 myself so I will be working on sensors for it soon. Idrisby Moriquendi - General
@Ohmarinus, That's not actually a piezo sensor at all, it's an FSR, a force sensitive resistor, they are much more delicate than piezo disks and not as accurate. I hear what you guys are saying about underbed piezos, from my experience it can be harder to get consistent, good, probing. This has only got harder as people start mounting heavier and larger beds on their printers. My Andromeda prodby Moriquendi - General
@Chris54, Yes, I have a product nearing release that does this, I've been using it for months now with great success. @Ohmarinus, Many people have used the Orion on delta machines, go to thingiverse and search for "piezo Orion" you should find plenty. You'll find models of the standard Orion parts on thingiverse here. Alternatively, I can see ways to use the Andromeda sensors to produce a custby Moriquendi - General
The Andromeda is best suited to stationary beds but it can be made to work with beds that move. What you will find is that, if your bed moves in Z, you will need to reduce the jerk to 0, and keep acceleration very low to avoid the inertia of the bed triggering the sensor when the bed begins to move. This becomes more pronounced as the mass of the bed increases. It's difficult to produce a generiby Moriquendi - General
Quoteryan99alero The calculated the deviation across all readings at each location. They vary from .01 - .022 mm. I thought from what I read on the sales slick they were suppose to be around .0003 for there deviation Can you link to the page where you found that figure so that I can rectify it? 0.0003 standard deviation would be be impressive but is beyond what we claim for any of our productsby Moriquendi - General
What do you mean when you say inverted the sense direction? The at rest reading will vary with temperature. I suspect that something is still off with your mechanical design, you should have a wider range of tuneability. Idrisby Moriquendi - General
What you're seeing is what you should be seeing and is very similar to what I see on my printer. At rest the Z-probe reads 530 and I have mine set to trigger at 535. The output pulse is very short and it's very likely that the web interface doesn't register the peak of it however the Duet and firmware should trigger as soon as it passes the threshold. That is to say, the Duet and firmware will rby Moriquendi - General
P8 Is still a digital mode just unfiltered. My M558 line is as follows, M558 P1 I0 H2 R0.5 F200 T8000 So try P1 I0 and see whether that makes any difference. Idrisby Moriquendi - General
There isn't much demand for Chimera/Cyclops compatibility so it's not something I've put a lot of work into I'm afraid. It's only by pure chance that the holes in the Orion line up with the bowden connectors. I do know that some people have had success with the mount I designed so it may be that there's something else going on. I'm happy to help if I can but I don't have a Chimera to test with.by Moriquendi - General