QuoteMoriquendi I'm really not making any more of the Piezo20 boards, not unless you want to special order a large number. The Piezo20 PCB was designed for a single product using a technique that I can no-longer support, drilling holes in piezo disks. The Universal PCB does everything you need to run a system like the Piezo20 but is also easy to use for underbed sensing, unlike the Piezo20 PCB. Tby CodeBuster - General
QuoteCodeBuster I've been having a problem with my mount setup recently. It's a hotend probe on a delta. I noticed the bolts had loosened over time, because I had not fully engaged the ring of the nylock nuts with the the threads. I switched out the 60mm bolts for 65mm bolts. Now I have two probe points at the front of the Z axis and slightly to the -X direction of that won't ever probe any lessby CodeBuster - General
I've been having a problem with my mount setup recently. It's a hotend probe on a delta. I noticed the bolts had loosened over time, because I had not fully engaged the ring of the nylock nuts with the the threads. I switched out the 60mm bolts for 65mm bolts. Now I have two probe points at the front of the Z axis and slightly to the -X direction of that won't ever probe any less than .2mm highby CodeBuster - General
How far out? On escher3d.com delta wizard it recommends only "a very long way out opposite each of the towers" but not specifically. The max radius of the v2 extends probably ~15-20mm beyond the delta tower triangle. Perhaps even 40-50 beyond the virtual tower triangle. I, and probably Cabo, are both using well made rods, injection molded ball-cup arms.by CodeBuster - General
QuoteCaboGuataca Hi everyone, I'm thinking to upgrade my Rostock Max using one of the piezo probes DjDemonD and company provides, but I'm having doubts about the best way to do so. Let me briefly explain my setup: My Rostock MAX v2 glass bed got broken a few years ago and since then I replaced it with a cheap glass. Since then I haven't been able to print to the full width or consistently forby CodeBuster - General
I've made an e3d effector mount for all you Rostock Max owners out there, fits the Piezo20 v1.4 PCB An assembly guide is included Enjoy!by CodeBuster - General
QuoteMoriquendi Is that deviation across the bed or deviation in one place? What height do you probe from? Idris That is deviation across the bed, using the least squares algorithm from dc42's RepRapFirmware fork. I probe from 5mm @ 4mm/s, then on second repetition from about 1mm @ 4mm/s In firmware it's taking the average between the 1st and 2nd probes. I actually haven't tested repeatabilityby CodeBuster - General
I'm getting around .04, .05 deviation on my Rostock v2 delta. Any ideas what I can do to get that down to .01, or .02? I already set the nozzle z offset to .01 down from .1, and that brought the usual deviation from .06 to .04by CodeBuster - General
New changes added in Repetier 1.0.4 are very good. With these settings, the probe works great. Getting .03/.04mm deviation: Z_PROBE_ON_HIGH=false ENDSTOP_Z_MIN_PULLUP=true ENDSTOP_Z_MIN_INVERTING=true ENDSTOP_Z_MIN=true Z_PROBE_REPETITIONS=2 Z_PROBE_SPEED=4 Z_PROBE_WAIT_BEFORE_TEST=330 Z_PROBE_DELAY=330 Z_PROBE_HEIGHT=-0.01by CodeBuster - General
@ruggb It is slightly confusing, which is why I posted both a table of the behavior of v1.0.2 of Repetier Firmware and crosslinked the posts on either forum. The developer has replied and clarified for me that Z_PROBE_ON_HIGH tells the firmware that the probe's trigger state is high voltage (i.e. 5V), which obviously is incorrect since Piezo logic is designed active low. Since I've made him awarby CodeBuster - General
I read that increased static clamping force actually decreases the intensity of the voltage spike and increasing the force required to make a piezoelectric pulse sufficient for triggering the sensor PCB. I assure you, I have tried breathing on it. A light tap , but not too light, is what is required to trigger my Piezo20. As it should be, this was one of its lauded features; a nozzle Z-probe thaby CodeBuster - General
Then the Piezo20 PCB is definitely straddling the edge by a whole .05V over the minimum.. Do you think a level shifter would be an appropriate move, @dc42 ?by CodeBuster - General
@Moriquendi Thank you for verifying the Piezo20's circuit is working as expected. I am discussing this with Repetier on their forum to figure out why the G30 probe cycle isn't behaving correctly. Repetier Forums - Z probe with Piezo element errors I see in the Arduino documents that what you say is true. On a 5v atmega2560 anything above 3V on a pin is registered as the pin being high. Do you tby CodeBuster - General
QuoteMoriquendi @CodeBuster, Sorry if I appeared to ignore your question, I didn't intend to. Have I talked with you about this issue on another platform? It can be hard matching up email addresses and forum names so forgive me if we've already covered some of this. Unfortunately I have no experience with Repetier firmware so I'm afraid all I can do is run through verifying with you that the ouby CodeBuster - General
I had sent an email since the forums were unavailable to me for a day, but I was able to make the forum post before you replied. I shall verify the Piezo20 is working electrically, but I do believe it is firmware. The table is for the benefit of everyone. More data is good.by CodeBuster - General
QuoteCodeBuster I have a 27mm piezo sensor on a Rostock Max, but I can't seem to get it interfaced with my RAMBo and Repetier Firmware properly. I've reflashed the firmware many times, each time changing a setting. I have tested an entire matrix of probe/endstop settings. I'm certain it is wired correctly from Piezo20 to RAMBo, as I color coded the connectors, and I verified the piezo is in theby CodeBuster - General
I have a 27mm piezo sensor on a Rostock Max, but I can't seem to get it interfaced with my RAMBo and Repetier Firmware properly. I've reflashed the firmware many times, each time changing a setting. I have tested an entire matrix of probe/endstop settings. I'm certain it is wired correctly from Piezo20 to RAMBo, as I color coded the connectors, and I verified the piezo is in the proper polarityby CodeBuster - General