Topics created by shadowphile

@siam I was also missing the motor mapping assignment, which is a big bad omission. I was wondering why my Z-tower motor was in whining fibrillation mode for 30 seconds after a reset.

@droftarts I fixed the channel assignments and disconnected heater 1. System still went into reset and looked like a short because all the PCB LEDs blank out the moment I select either T0 or H1 (GUI links), or send T0 by the console.

However, the heaters are working now and I've tuned them up already.
I tried a few more times with T0 or T1 though and haven't been able to force a reset. It would be great if it stayed this way!

thanks

thanks for the reply!
Here is a web based analyzer that is accurate enough to include motion parameters like accel. https://www.gcodeanalyser.com/

Otherwise, I guess I'm trying to get a real-time plot because I want to know WHEN I'm hitting limits. The weight of the mobile parts and the dynamic torque of the motors determine when those limits are reach but that isn't practical at all (and even harder with a delta).
But I it seems like without an external way to track the tip there is no way to know. And of course if you could do that, then you can close the control loop and get rid of calibration problems (almost) completely.

A lot of concepts from the original reprap release were fine for the early days and cheap builds but as performance is increased some of those elements need to be revised. Closing the loop to get cheap but precise nozzle placement would be a big improvement and just eliminate most calibration issues. Easy to do with 3 encoders on a cartesian, much harder on a delta. Sometimes I wonder if my delta is worth the trouble. There's a reason most printers aren't deltas.

@shadowphile

d893867b-3a38-44a2-bfcb-bbe0d9af1bed-image.png

I have a very similar heightmap too. Off by -.15 neareset to the towers, and +1 opposite the towsers.

Can anyone help me interpret (possible) underlying mechanical with this? Smart effector, custom 80mm adapter (PLA-CF). 380mm bed. Haydn Huntley 440mm arms.

M292 145 points probed, min error -0.145, max error 0.107, mean -0.016, deviation 0.047 Height map saved to file 0:/sys/heightmap.csv G29 145 points probed, min error -0.145, max error 0.107, mean -0.016, deviation 0.047 Height map saved to file 0:/sys/heightmap.csv bed.g: M561 G28 G30 P0 X0 Y169.9 H0 Z-99999 G30 P1 X84.95 Y147.14 H0 Z-99999 G30 P2 X147.14 Y84.95 H0 Z-99999 G30 P3 X169.9 Y0 H0 Z-99999 G30 P4 X147.14 Y-84.95 H0 Z-99999 G30 P5 X84.95 Y-147.14 H0 Z-99999 G30 P6 X0 Y-169.9 H0 Z-99999 G30 P7 X-84.95 Y-147.14 H0 Z-99999 G30 P8 X-147.14 Y-84.95 H0 Z-99999 G30 P9 X-169.9 Y0 H0 Z-99999 G30 P10 X-147.14 Y84.95 H0 Z-99999 G30 P11 X-84.95 Y147.14 H0 Z-99999 G30 P12 X0 Y84.9 H0 Z-99999 G30 P13 X73.53 Y42.45 H0 Z-99999 G30 P14 X73.53 Y-42.45 H0 Z-99999 G30 P15 X0 Y-84.9 H0 Z-99999 G30 P16 X-73.53 Y-42.45 H0 Z-99999 G30 P17 X-73.53 Y42.45 H0 Z-99999 G30 P18 X0 Y0 H0 Z-99999 S8

results from delta calibration (deviation of ~0.00,0.06):

M665 L440.470:440.470:440.470 R226.746 H396.169 B185.0 X-0.058 Y-0.097 Z0.000 M666 X-0.315 Y0.826 Z-0.511 A0.20 B-0.08

Why is the piezo failing?

Set up your extra thermistor as a virtual heater using M305, then use M143 to monitor it. See https://duet3d.dozuki.com/Wiki/Gcode?revisionid=HEAD#Section_M143_Maximum_heater_temperature.

thanks for the replies, it sounds like there isn't really an issue on the hardware side.
I've been learning Fusion360 and no issues there, just export the .nc file.
I'm also learning to use to Tormach CNC in our makerspace. These machines always come with their own software interfaces that do the same thing as the Duet webcontrol, but since that is printing-oriented, what would I use to manage the machine and jobs? Webcontrol can monitor progress, start and stop jobs, define tools and such, even jogging. But there are a lot of elements non relevant to cnc and cnc oriented items not in webcontrol (maybe setting the Duet to CNC mode also modifies the web interface to match?)

@shadowphile said in question about steppers and power supply current rating:

Since I don't want to change everything over to 24V, I plan to wire 24 into the Duet but wire my old 12 into the middle pin of the V_fan select header. Both supplies would merge their negative terminals. Sound ok?

Yes that's OK.

@shadowphile said in Where to start with a comprehensive extrusion calibration?:

that helps keep calibration from turning into a exercise in OCD behavior

That's a good observation. At some point we also need to recognize the FDM in general has limitations when it comes to print quality. Similar to the situation with dot matrix printers in the early days of desktop 2D printing.

Well it's a vibration. If it's making noise something must be vibrating. So try tightening the belts if possible, or see if there is a part of the frame that is loose. You may be hitting a resonant speed as well, does it still happen if you go a bit slower or faster?