Posts made by silentcitizen

@dc42 Thank you! This is what I needed. I come from the Ultibot days when they gave us a Simplify3D conifugration than ran a G28 every print. I'll give this all a go, I was having all sorts of issue but after microstepping back 0.9mm each print has been perfect so I'll let you know soon.

Did a lot of work upgrading from 1.16, replaced duet wifi 2, re-wrired (and checked my crimps) and checked everything w my multi-meter, installed new PETG tube inside e3d, installed new themistor, replaced my PEI bed, so I wanted to be sure everything was good now that I know more this go around.

@achrn Ahh yes my bad G29 and G32, sorry was at work but I think my intent was there. The fact that a calibration was running after should have been a hint.

Messing with G92 Z0 at all, screws with subsequent G29 and G32 calls.

@achrn I do have a small trigger height in my G31 Z-0.6. On my delta (and i assume others [sorry meant G32 but still regardless G29 still does hotend movemet] - delta calibration does at a homeall.g then uses the an algorithm to to compensate for the the calibration of the bed. The 3 arms come down and touch the bed at several points activating the FSR sensors, allowing it to calibrate. G92 however also moves the printer head, it does a bed calibration mesh grid in the call defined by 357. Are you talking about a cartesian printer? How else is your hot end not moving on a delta machine?

G31 X0 Y0 Z-.6 P500 		
M558 P5 C"!e0stop" H5 I1 F75    ; Set zprobe, p4 is now p5 w 3.x

I think you're process works for me too, i just have to micro step up .9-1.0 mm whether or not I just boot it up and start or calibrate then print. Appreciate it btw!

@dc42 My slicer is set up to home then run a G92 calibration before printing so that may be it, although if I understand correctly the calibration should reset the home, but not sure exactly how it relates to the G30 call i have to make or the height map gives warnings. I'll give it a shot and appreciate the help!

@achrn what I'm saying is if I follow that documentation, paper just barely catching g92 z0 then the subsequent calibrations are away too low (G92 = detached printer head from hitting the bed). Don't setup G92 Z0 and it calibrates great. I'll see if checking my probe offset would help but its an FSR setup using the JohnSL board so I don't see that applying here.

If I set G92 z0 i can G30 S-1 until the cows come home, if I do anything the requires a homing then the z value is incorrect. For instance it'd be nice to configure my printer, run the G30, G92 and save with M500 so it's good for next time. But the delta requires you to home before moving the print head, so my Z would be messed up.

Just not to note, this was all fine in 1.6, I just ran through all the updates at once and now we're on 3.2 so not sure where/if when that changed.

Turn printer on >> Home all >> G30 (allow z probe to set z=0) >> G32 >> G92 (M557 is defined in config at 100mm radius every 10 mm) >> M500 (save all the configuration)

Now I have to raise the print via micro-stepping from 0.7-1.0 mm and the prints work fine.

My z probe is configured using JohnSL board and is working fine;

M558 P5 C"!e0stop" H5 I1 F75    ; Set zprobe, p4 is now p5 w 3.x

Changing the G31 Z value is useless, I currently have it set to -0.6 but I can make it 2.0 and it doesn't effect any calibration or print issues the way I am doing configuration. Other than this last issue have a D300VS running great on 3.2 firmware. I suppose this works, it just bothers me the homing height is never right, am I doing something wrong or is the firmware just wonky with delta's and 3.x?

Values saved from M500

M665 L360.310:360.310:360.310 R210.773 H438.588 B140.0 X-0.415 Y-0.448 Z0.000
M666 X2.633 Y-2.306 Z-0.326 A0.00 B0.00

@alankilian manual process to to tun a command that allows it below z, set to it to right where it holds a paper and set G92 Z0, then you can get offset with G30 S-1. Like I said it never works for me, just leave it at zero. I believe but not positive after homing if you run G30 it'll set the homed height, and then when you create the mesh map it doesn't complain. I can do that, just the manual process doesn't work for me.

I keep printing a PITA object so if it fails again here I'll move to some benchy type stuff.

It feels like a dome issue of some kind, as some of the first layer print better (thicker but all too low and thin) than others, but the rods and everything are matched from before. No hardware swaps. The flat bed and height map just confuse me, as well as it being fine before. Post those other details soon!

@alankilian Fixed that for ya, but lemme see how this print goes and then print something normal like a calibration cube for you. The G30, G92, etc are so good its weird it's so low. I'll post soon, sorry and thank you!

@alankilian thanks for the help!!

D300VS.js

I have another print going, and i guess i tossed the other cubes i printed so i'll do that tonight and post back here. I'm sorry about the format, just download and change to xml or ffl, this forum won't accept those file typess. Thanks again!

Also advice welcome, starting to get frustrated. Should I scrap this delta and just go with an Ender3 or something. I'm equipped to handle most things, but this has me puzzled; steppers aren't slipping, they're 0.9 degree motors, the JohnSL FSR sensors are kind of a pain in butt at times, but seem accurate enough. I don't get it... suggestions PLEASE. I'd be willing to upgrade the extruder but that doesn't explain the loss in the print quality I experienced just by going through firmware steps. Delta's just a bad idea with not enough support, I don't know.

Prequality;

@silentcitizen

Post;

Unable to finish prints.

Once again asking for help like Bernie... custom 3d delta printer (D300VS). I can get older prints to work okay (simplify3d 1.x and reprap 1.x) have since both upgraded each to 3.x.

Everything homes, calibrates, and mesh maps perfectly, it's flatter than I could imagine. Now my print ALWAYS starts below the homed height. Like I have to micro-step it up 0.7-1.2 mm to have it print the few few layers.

Okay so whatever fine, print goes for about 20-25 layers and the hits a problem with the infill where it pulls the part off. I am using a 99% infill so its a "semi" unique situation. I printed several calibration cubes and other than the bottom being f*ked if I didn't z-step the motors back, everything printed just as i expect. 20mm and nothing wrong except the bottom layer starting height.

I know the D300VS isn't a normal printer and only a few here have tried updating to 3.x but what would cause the behavior that if i set G92 z0 with a piece of paper the G32 call command causes the print head to hit the bed. Without doing that or calling M851 to clear it before hand, it homes (mean:0.00, deviation:0.001). Height map is green, I have a 210mm delta print bed so my "M557 R100 S20" seems to work pretty well.

I don't have any z-offset in my bed.g but from what I can tell its not using that. If I comment out the M557 call the I need to manually set the mesh diameter (as well as use G30 to get a Z height or it yells at me)

M115 call;
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.3 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2021-06-15 21:45:03

I've included my config, and happy to do any further diagnostics/testing needed. I have printed older Simplify3d (altho less complicated objects fine) I don't know how to export my Simplify3D Settings but I can post whatever is needed and was never an issue before.

config.g

Also I'm printing an object at 45 degree angle, the supports all print fine, its the small piece that sticks to the bed thats having the most fits. I've tried rotating both 45 and random degrees even though it says my bed is level.

Recently replaced some ghetto PEI with a sheet fit for my bed from e3d, so that should have gotten better and getting more consistent auto calibration results so I'm at a loss.

also disassembled, cleaned and cleared the hot-end, replaced the PTFE tube and the extrusion is working just as expected. Halp!

Updating my working D300VS from 1.16 to 3.1 firmware, config.g posted here, G32 and Mesh map look great. First layer always starts too low to the print bed, I have to microstep is back so it'll extrude and stick fine. Print goes mostly okay for the first few layers then starts to drag across the area where I have any infill. My retraction height is set to 0.4mm and also tried 0.6.

Manually setting the height via Z92 Z0 leads to the print nozzle crashing into the bed, despite the FSRs. If I clear via M561 then the autocalibration reports fantastic values, the map calibration does complain if I don't manually run a G30 before so it knows the z heigh. I have to micro-step the print head up by 0.5mm or so and it'll start to print a good first layer. There's something off about my layer adhesion and eventually the print will just mess up. Any ideas, thoughts, or suggestions are welcome!

Supports feel like theyre printing fine after that initial too low first layer, so mb that combined with retraction settings? Using Simplify3D to slice, which i haven't had too many issues with before, but will try a new app if this doesn't work. I also updated the PEI covering, with a new e3d version. Mine was old but I thought they last forever and this one is more precision cut so hopefully it'll help.