And it works very well on my grossly modified Anycubic Predator delta. Compiled and installed with no issues. The temperature control of both bed and nozzle is faster and tighter, and there are no screen or touch glitches. Basically plug and play so far. And yes, I'm still using the original Chitu Trigorilla Pro board.by rq3 - Firmware - Marlin
It's not necessarily the torque, but how quickly you can apply the current you need for the motor to get to where it needs to be. The motors you are considering are rated for 12 volts, and have a 30 ohm coil resistance, and VERY high inductance. This means that they will not respond quickly to step inputs. Your motor drivers will deliver the current required, and in general, for a CNC applicatioby rq3 - Mechanics
Mike, my only suggestion might be to pull a vacuum, rather than apply pressure. Typical aquarium pumps can be easily converted to do so, and that would make the ambient atmospheric pressure the "calibrated", self correcting, baseline, since their second port is exposed to atmosphere. Most of the MEMS barometer units from Bosch, STMicro, and the like, will easily register millitorr (if not microtby rq3 - Tech-Talk
I often get the same error, even if I wipe my nozzle's nose during heat-up. This is a known issue with the later Marlin releases, and includes errors with PID tuning, and the maximum applied power to either the bed or the nozzle, whether bang-bang or PID. I wouldn't expand the "safety limits" for convenience. I'd rather reset the printer and start over than have it catch fire. Once I DO get theby rq3 - Firmware - Marlin
I have no idea if this may be related to your issue, but Marlin jumps between mm/second and mm/minute, depending upon whether you're looking at configuration files or the underlying C++ code for a particular function. Adding a couple of zeros to a mm/minute function might make a sluggish stepper wake up and move somewhat as expected? Just my $0.02 worth.by rq3 - Firmware - Marlin
I apologize that it's not a Marlin fix, but can you wire a low current LED to the probe signal line? I've done that to the piezo probe on my delta, and it is nice to be able to see the LED flash when the probe is triggered. There is a need for what you want in Marlin. It's a neat idea, and you may want to add a feature request to the Marlin github. It should be easy to do, if it doesn't already eby rq3 - Firmware - Marlin
Mike, I hear you. My company manufactures aircraft avionics. 99.9% of my customers are terrific. The remainder have done things that make my jaw drop. And these are folks that are licensed by the Federal Aviation Administration (FAA) to install my products, and other products like them, on aircraft. During phone calls my first question is always, "Did you read and understand the installation manby rq3 - Tech-Talk
Try either setting your delta height larger, or your probe z offset smaller (like -16.5 instead of -15.8). Your effector isn't getting close enough to the bed to trigger. Can your run an M48 probe repeatability test?by rq3 - Delta Machines
The forum says 8MB maximum file size, and a maximum of 10 files per post. What it really means to say is 800 KB, discovered through trial and error. Quite a difference, and aggravatingly low.by rq3 - General
@chivel, you should probably post this under a section of the forum appropriate to your printer (RepRap, delta, scara, etc) or under a section appropriate to your controller or firmware (DUET, RepRap, Marlin, etc.) What program? What printer? What z-probe? You have to help folks help you. Your comment (not even a question), is like; "How high is the sky?"by rq3 - Tech-Talk
Mike, I managed to post the docx file in its entirety on thingiverse: The basic idea is not new, and in fact is how automobile engine knock sensors work. Feel free to leverage as you see fit. I'm surprised that apparently this hasn't been stumbled across in the printer community, and I'm shocked at how well, and easily, it works. Again, I'm happy to send one along if of any use to you. Ripby rq3 - Tech-Talk
Mike, I have an under bed piezo sensor on my delta, of a completely different design. I sure wish I could attach my notes or pictures, but the forum keeps complaining that they are too large (although they are not). I'd even be happy to send you a sensor if you're interested. Ripby rq3 - Tech-Talk
I'm trying to attach a 1.8 MB word .docx file to a post, and the forum says it is too large. What am I doing wrong?by rq3 - General
Will changing the belts (or pulleys) solve the problem? Only you can say, since you've already changed the pulleys several times. I do know that my Anycubic delta printer came from the factory with mismatched pulleys and belts, and changing everything to real Gates products made an unbelievable improvement. Yes, that 0.07 mm difference in pitch means something. Whether or not that is your issue,by rq3 - Delta Machines
Are you very, very sure that the belt and pulley are the same pitch (tooth spacing)? A 2.07mm pitch, 1/4" wide belt looks almost exactly the same as a 2mm pitch, 6mm wide belt. Also, wrapping a steel core belt around a pulley that is too small may be problematic. Mismatched tooth pitch between pulley and belt will force the belt to jump a tooth (or at least try to), every few revolutions of theby rq3 - Delta Machines
I suspect that you have a bad solder joint somewhere on your board, especially since the board was exposed to corrosive conditions (rainwater). The Vref pot itself may be corroded. As the board warms up, the bad joint goes high resistance, and the Vref connection gets wonky. I doubt that the driver itself is overheating and shutting itself down, from your description.by rq3 - Reprappers
Loose drive pulley? Overtightening the belts might add enough friction between the pulley and the motor shaft so that it stopped slipping. Just a thought.by rq3 - Printing
I've modified G2_G3.cpp and the configuration-adv.h file in Marlin 2.0.7.2, and also enabled Bezier Curves and Klipper style stepper functions. Sliced a Benchy in Cura with the Arc Welder plug-in, and all is good. Very good.by rq3 - Firmware - Marlin
@haliofane, I'm the wrong guy to help with a BL Touch. I've never even seen one! Have you tried their website:by rq3 - Firmware - Marlin
@huliofane, I took a quick look at your configuration.h A couple of thoughts: 1) Make sure your BL Touch is working. Home the printer, and then let it start probing. As the effector goes down trigger the BL Touch with your finger. The printer should instantly stop, go up, and then try to probe again. If it does not, you have a probe issue. 2) On a delta, the delta height is critical. Home the priby rq3 - Firmware - Marlin
I have found that the built-in Marlin temperature PID routines do not work very well, and I have seen the same constant temperature "hunting" that you see. I tune manually, with g-code (M303, M301, and M304), with Repetier Host, and then plug the PID values into the Marlin configuration.h before I compile. The values are VERY different from the one's Marlin reports itself, and they work MUCH betby rq3 - Firmware - Marlin
I have discovered that if I disable multiple probing, Marlin "kind of" works as expected. It goes at the full homing speed to the distance from the bed specified, and probes once, slowly, from there. It would be neat if it would also act that way with multiple probing enabled, but it doesn't.by rq3 - Firmware - Marlin
QuoteGlx463 --SOLVED-- Well, that tells us nothing! Care to share what you did?by rq3 - Delta Machines
Anyone? How to get a delta to go quickly from top homed position, to within about 5 millimeters of the bed, and probe slowly from there?by rq3 - Firmware - Marlin
@jparaskeva , I have an Anycubic Ultrabase Pro textured glass bed, and for years it would not stick to anything. At any temperature. Other people had great success with theirs. I just discovered that during the manufacturing process, the texture is fired onto the glass at a very high temperature, like glaze on a ceramic pot. Sometimes they clean the glazing flux off, sometimes they don't, which eby rq3 - Printing
I have Marlin 2.0.7.2 installed on an Anycubic Predator delta. I have the "pause for deploy/stow" function turned off in configuration.h as I am using a permanently mounted piezo sensor under the bed. When I start an M48 probe repeatability test, a delta auto-calibration, or bed leveling, the unit homes fine. Then it descends at a good speed to where it used to stop and ask for a probe deploymentby rq3 - Firmware - Marlin
I know this is getting way off topic, but for embedding, potting, and general cementing of hot end parts, companies like Cotronics, Aremco, and Saureisen make ceramic adhesives with excellent thermal conductivity good for use to 3000 degrees F. Just a thought.by rq3 - General
I'm running a Trigorilla Pro board under Marlin 2.0.7.2 on an Anycubic Predator delta. I've changed the original microswitch z probe to a nozzle contact piezo sensor, and all is well BUT: When I do an auto calibration, the printer loses track of where the x and y positions are. The first few probes go fine, then the LCD display indicates that it is moving to say, X=0, Y=-152, and it visually movby rq3 - Firmware - Marlin