Moriquendi, I am curious about the four hex nut shaped objects at the four corners of the Orion mount top plate .... do they serve a purpose in anything other than possibly a delta printer? Thanksby jens53 - General
I too returned to the trusty BLTouch. Not as accurate to be sure but then also not as temperamental as the piezo and a hell of a lot more consistent/reliable.by jens53 - General
Did you reduce your acceleration and jerk to absolute minimum for the probing run ? Sorry, not familiar with the Marlin configuration stuff.by jens53 - General
Interesting .... the very first plot is what I would expect to see. The second plot seems to represent what I suspect is going on. I do not own anything that would enable me to grab data of this nature. It certainly would have been interesting to see what my data would have looked like. Alas, for now the BLTouch is it. In my case, off center mounting of the disk was not possible and it was a nozzby jens53 - General
QuoteMoriquendi The amount of movement of the nozzle should be very very small, less than one microstep. If your nozzle has more movement than than then something is wrong. Any mechanical nozzle probe technology is going to require dome degree of movement of the nozzle, the Orion PCB and mounting parts are designed to minimise this, I have not seen any system that uses the nozzle as the probe tby jens53 - General
Very interesting. Would you then install this for a z=0 measurement as well? I wonder if there is a point probe or if the bed touches the entire puck ?by jens53 - General
QuoteOhmarinus I see so many solutions. Right now I have ordered a piezoelectric disc that you can mount temporarily under the tip of the hotend. My idea is to do a really good bed leveling program and then save the mesh because the delta shouldn't really change much in between prints. When it's done I can take off the disc and just print without it. I'll probably have to level it every once in aby jens53 - General
Interesting that you should be posting your results now (thanks btw) .... I have just switched over from an Orion piezo setup to a BLTouch setup and am running tests. I too would have preferred the piezo setup but for whatever reasons, I could not get the probing force required to be consistent and as a result the measurements were not consistent. I was hoping to get away from the slow probing spby jens53 - General
I am not sure how you figure that the z offset only needs setting up once. You need to enter the height difference between the probe trigger point relative to the nozzle tip. This figure changes every time you pull the nozzle to clean it. It changes if you adjust the nozzle height which is independently adjustable for the two nozzles on a Chimera setup. I am in Canada but I think that for now Iby jens53 - General
Stepping up on a soap box to vent my frustrations: I am about to toss my Orion Piezo setup. I just can't deal with the random errors any more. A bit of background - I am running a CR10-S5 printer with a E3D Chimera dual extruder running volcano hot ends and I have been tweaking this setup for close to a year now. I have tried different mounts, different pizo versions, differently tweaked mountiby jens53 - General
Marlin has a number of parameters in config.h that you need to set up. If you haven't changed printer size then you won't need to change bed size but you will definitely need to change the offset of the probe and related probe parameters.by jens53 - General
Quoteryan99alero There were area's that would spike up and move around with multiple probe attempts. I have been tweaking and getting those reduced. I finally finished designing new fan guides that will also hold the BL Touch so I can compare probing system's map results. I too see odd bumps and stuff. Not only that but there are odd patterns to the bumps. In any case, please be sure to post yoby jens53 - General
Please note that no matter how heavy the rails and how light the head, there will be deflection. Conversely, any touching of the head to the build platform will produce deflection. The best you can do is have consistent deflection which you can compensate for.by jens53 - General
The 0.0003 bit is IMHO very optimistic. The 0.01 to 0.022 deviation is very realistic. I am curious what your results will be with the BLTouch! Keep in mind that even a precision ground bed plate has deviation and that will add to the overall deviation picture you see. The piezo units provide a voltage output no matter what direction the are flexed (only at right angles to the piezo sensor of couby jens53 - General
I am happy to report that I have found the magic incantation for the piezo probe to work (crossing fingers, toes and knocking on wood) I ended up reversing the polarity again but the key bit seems to be a 1/4 turn of backing off the 4 mounting screws on the sensor mount. Why this made a difference this time around (I played with those screws a lot) is a mystery to me but I have successfully probby jens53 - General
I have the analog version of the orion. Based on your use of M558 P8, you are using the digital version which will show either zero or 1000 in the web interface. The orion is giving an on/off value only and it really doesn't matter what sensitivity value you choose (most use P500). With the digital version you adjust the sensitivity with the trim pot on the sensor board. .... and yes, I have seby jens53 - General
QuoteMoriquendi 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. Idris I used to have this setup (notice the I1) M558 P1 I1 R0.3 F300 H5 A1 T8000 and based on what you said, I went to I0 As far as mechanical design, I amby jens53 - General
I went back to square one, reprinted your design for the chimera mount and inverted the sense direction. M558 P1 I0 R0.3 F300 H5 A1 T8000 Inverting the sense direction seemed to have a substantial effect for some reason or other. I set the sensitivity of the probe two digits higher than the base reading that I get when the system is just sitting there. This gets me excellent and repeatable resuby jens53 - General
OK, thanks for clarifying what I should see.by jens53 - General
Thanks Idris. I think there is a gap in my understanding or expectations of what I should see. What I expected was to see the z-probe figure in the Duet web interface to show zero or a very low number and then go up from there to close to 1000 when pressure is applied. What I actually see is a z-probe figure of around 560 (or 440 if configured as I1) and a very tiny change (between 1 and 3) whenby jens53 - General
For those of us who are a bit slower on the uptake, what is the magic incantation to get the analog side of the orion going ? I plugged the connector from the previously installed digital orion into the 4 pins furthest from the orion PCB and it is behaving as it should flipping from 0 to 1000 I plugged it into the 4 pins closest to the PCB, the lights on the orion board behave as they are supposeby jens53 - General
I gather by the lack of response to my last question, that I am on my own in modifying the mount for the Orion on a Chimera hot end. I have come across one post (and I am sorry to say I lost track of it so I can't credit the person who thought of it) that inserts special soft o rings between the mount that attaches to the heat sink and to the Orion sensor PCB. This, in theory, gives a bit of flexby jens53 - General
After a lot of experimenting, I managed to get my Orion sensor to work on a Chimera dual filament system using the suggested mounting system at . This mount is considered a 'beta' version, designed by Moriquendi and was apparently not personally tested. Is there any work being done to improve this mount ? In order for the mount to work for me, I had to loosen up the screws between sections of thby jens53 - General
... and here it's been like two weeks and I am still waiting to get a paypal invoice (special circumstances) so I can pay for a couple of Orions .... (well I did say 'anytime, no rush') LOL .... just received the paypal notice .... thanksby jens53 - General
The only identifying marks are "Creality 42-34" .... so not much help there. Is there anything I can try to do without re-configuring the entire printer? Would disconnecting one stepper tell me anything ? Would measuring phase resistance tell me anything ? Most important, is it likely to hurt anything if I carry on running like that ? Thanks!by jens53 - Duet
A quick question .... my x and y axis movements on a CR10-S5 are very quiet, presumably due to micro stepping. The Z axis sounds very much like my other CR10 with the normal creality controller that doesn't offer micro stepping - very noisy. Could someone confirm for me that this is normal ? Is the fact that two z motors are in series causing this issue ? Has anybody else noticed that ? It doesnby jens53 - Duet
Is there a way to have the gcode console show the individual lines of codes that are being executed ? Is there a possibility of single stepping trough the gcode in order to trace a problem ?by jens53 - Duet
I have set up my Duet with a camera to follow the progress of the prints. The embedded picture in the web interface is very small and details can easily be missed. Is there any provision for maximizing the camera feed? In Octoprint for example, double clicking on the camera feed will make the picture full screen. Also, it would be nice if we could select one out of a number of feeds. Extra feedsby jens53 - Duet
Solved: Just to follow up, the solution is actually embarrassingly obvious. The default acceleration profile that is selected in config.g is over ridden in a number of routines so is only accurate when config.g is run. Some of the homing routines for example changed acceleration for the Z axis. A call for a G29 would use whatever acceleration setting was in effect. The answer is to run an M201by jens53 - General