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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
keep getting spurious http: disconnect messages - 3 years ago
Just in the last day or two I keep getting this random message, even when the printer is not doing anything: 'Connection interrupted, attempting to reconnect... HTTP request timed out' then it automatically reconnects. Is there a way to trace this down to either my local network or an issue with the duet? thanksby shadowphile - Duet
Re: Need help setting up final calibration using config.g - 3 years ago
thanks for the reply. I have a delta and homing with the endstops. I can understand not putting moves into the config.g file, although homing seems safe enough. Which brings me back to one of my questions: Why is using homedelta.g within my config.g file not recognized by the web interface? It still says system not homed yet and won't allow any jogging. Another question I had: If I adjust the zeby shadowphile - Duet
Need help setting up final calibration using config.g - 3 years ago
I have a delta with a piezo z probe running RRF3.4b3. I have worked out the z-probe offset and confirmed it with both G30 S-1 and also G30 alone. I have also probed out the mesh bed correction. It looks 'ok', not great (max height - min height is about .25mm) Now I want to invoke mesh bed correction without having to run G29 and G32 but I can't enable the heightmap correction until I've establiby shadowphile - Duet
Re: Duet Ethernet won't detect new accelerator board - 3 years ago
thanks for the Saturday morning reply! I will repost on the other forum as you suggest. Yes, I accounted for the remapping of CS3 and CS4 on top of CS1 and CS2. Actually, I didn't rely on remapping, too dumb to realize why that was even mentioned so I ended up tracing the Input to Output connectors by hand (with DMM).by shadowphile - Duet
Duet Ethernet won't detect new accelerator board - 3 years ago
Before you get lost in the text below, I want to squeeze in a thanks for reading this and hope you can find errors (otherwise my board is bad). I've been following the instructions to set up an Adafruit LIS3DH accelerometer on my DuetEthernet. I've been running 3.3 up till now, then installed 3.4b3. I have a temp daughterboard so made my cable according to that (along with some grumbling becauby shadowphile - Duet
Yeah Racing rod-ends better than Traxxis? - 3 years ago
I stumbled on Yeah Racing and they seem to do upgrade parts for RC so I'm wondering if these are higher quality/more durable/longer-life/less play than the Traxxis line? I've been looking at the IGUS joints but don't like several things about them. thanksby shadowphile - Developers
Re: variable encoder steps for varying extrusion print speeds - 3 years ago
argh, every time I think I got the command set in mind I discover something new, that's great! thanks for the reference.by shadowphile - Duet
variable encoder steps for varying extrusion print speeds - 3 years ago
Running a filament at different extrusions rates obviously alters the backpressure so trying to put a 'correct' value in config.g is confusing. One of my 1.75mm PLA filaments would change as a much as 6% between extruding at 1mm/sec and 5 mm/sec (albeit 5 is a little over the thermal volumetric limit for a V6 heater block) So temperature, extrusion rate, and nozzle-size can all impact the correcby shadowphile - Duet
Re: Weird scaling artifact - 3 years ago
That is assuming that the scaling error was somehow implemented with the M579 command, which was the first thing I scanned for. If M579 got executed, it seems like a firmware hiccup. If I try to reprint this part, I will move it away from the origin to see if scaling stays the same. (if it does at all, which I'm afraid won't happen)by shadowphile - Duet
Re: stuttering hot-end? - 3 years ago
I discovered that my extruder was set to 2 in the max feedrate but needs mm/min, not per sec. The pauses went away and it seems like the jerky moves too after I changed it to 300 (mm/min) Another question: why is there a M204 but not a jerk equivalent? BTW, while I'm here, what config commands can be input immediately and which ones require a reboot?by shadowphile - Duet
Re: stuttering hot-end? - 3 years ago
I discovered that I've been adding incorrect gcode to the slicer to set acceleration and jerk for that particular print. I've been using, with out a problem, these two statements in my slicer: M566 X500 Y500 Z300 E:40:40 M201 X5000 Y5000 Z3000 E120:120 (note: my extruder is a Zesty Nimble with a 30:1 gear ratio so those weird extruder values are suggested by Zesty) I realized that they set the mby shadowphile - Duet
Re: Weird scaling artifact - 3 years ago
It's a delta so origin is in the middle. The model was approximate in the center. I was wondering myself where the origin of the scaling was based. It kind of disappears at the bow but hard to be sure, but it sure looks like it is even all the way around from the bottom view.by shadowphile - Duet
stuttering hot-end? - 3 years ago
Don't know why I'm having problems lately, although redesigning the entire effector might have something to do with it In this case that doesn't matter. I'm printing a 10" single filament circle for calibration purposes. I'm generally running it at 50mps (1st level). The skirt runs fine all the way around but the path along the object itself stutters badly when rounding the curve where the X anby shadowphile - Duet
Re: Weird scaling artifact - 3 years ago
that thought had occurred to me but the boat height is exactly correct. Do you know of a good simulation that will graphically display my gcode? Obviously it was not visible in the PrusaSlicer display. I could slice again but it's just a benchy so I don't need to 'fix' this gcode (and I'm troubleshooting problems right now anyway) I was thinking it might be a slicer error but that would actuallyby shadowphile - Duet
Weird scaling artifact - 3 years ago
I have Duet 2 Ethernet and the latest firmware. My z-probe is a custom piezo sensor/electronics that uses the nozzle tip. I've gotten comfortable troubleshooting printing issues but this one is a stumper: my Benchy seems to have changed scale in mid print, see pics. I searched for the G-code scaling commands and even something that may have changed my calibration numbers but they weren't fouby shadowphile - Duet
Re: help moving from a custom to a commercial printer - 3 years ago
I just ordered the Prusa Mini so the question is now moot, thanks for the reply!by shadowphile - General
help moving from a custom to a commercial printer - 3 years ago
Hi, is this a proper place for this post? I have a 4th generation custom large dual-head delta at home and it is very versatile because I can swap heads/nozzles, etc. Now I have to select a commercial printer for work and am struggling with flexibility and know-how (me) vs a more user-friendly for others. I guess what I'm looking for is a plug-n-play-ish printer that isn't too dependent on propby shadowphile - General
Re: Looking for a US distributor of Hylite composite panels - 6 years ago
Hi M_Xeno. If I recall correctly, you are the designer of the Hylite-based super-fast printer, which is pretty cool btw. (I can never remember that Z word). I have a custom delta and designing the fourth version, which is focused on speed so dropping the weight everywhere I can find. The steel balls and weight of mag-ball rods are starting to dominate the moving weights and I thought about alterby shadowphile - Reprappers
Looking for a US distributor of Hylite composite panels - 6 years ago
Every single one from google search is in Europe thanks (a competitive product is acceptible)by shadowphile - Reprappers
Re: is carbon-fiber sheeting/bars suitable for a printer? - 6 years ago
Thanks, I understand you.by shadowphile - Reprappers
Re: is carbon-fiber sheeting/bars suitable for a printer? - 6 years ago
@VDX: I'm not sure what you are talking about. I was specifically referring to the use of flat CF laminate (one piece) as my delta effector base. @NitroFreak: I have not had to think much about which metals will vibrate longer than others except for deliberately resonant devices with high 'Q'. In this case, I would think a simple plate with all the attachments would only vibrate at very high raby shadowphile - Reprappers
is carbon-fiber sheeting/bars suitable for a printer? - 6 years ago
I'm designing V4 of my delta and while I was researching 7075 alum properties I suddenly realized I could probably afford to use CF instead. Search didn't find anything useful. Does anybody have experience building non-rod structures with CF? I know it can have serious directional strength characteristics but of course I would be using some kind of laminate.by shadowphile - Reprappers
Re: autoleveling plus mesh-bed compensation - 6 years ago
David, can you comment about how the mesh-bed heightmap is applied? Does the correction profile go through the heightmap points and is it linear or some poly interpolation? One thing I really like about the height-map generation is that I can test the influence of various elements. For example, I thought the pull of the cable assembly going to the effector might be changing over the range of tby shadowphile - Delta Machines
Re: autoleveling plus mesh-bed compensation - 6 years ago
I was picturing the height correction being based on a smooth surface forced-fit to the grid points, smoothed to at least the first derivative. 2nd would be better. That seems (mathematically) like it could easily handle micron-level corrections. If it doesn't work like that, then dang it. Maybe too much for the Due? Answers to questions: QuoteAlso are you adding the G29 S1 G-code command to yby shadowphile - Delta Machines
Re: autoleveling plus mesh-bed compensation - 6 years ago
I still don't understand why I can't use the mesh-bed topology measurements (G29) to do tiny (ie .02mm) adjustments to a well-built system, not major corrections to a badly built system. Is it not an accurate process? thanksby shadowphile - Delta Machines
Re: this is what happens when mechatronics goes bad - 6 years ago
OK, here is my final report on repairing my machine. -The new Duet came up fine, but I can reproduce the same problem bed-probing with the same high performance settings. That problem goes away if I lower the forces. I tried raising the motor current limit from 1.0 to 1.7 (extreme, just for this test) and surprisingly had the same behavior, which seems to indicate the motor may be skipping forby shadowphile - Duet
Re: autoleveling plus mesh-bed compensation - 6 years ago
thanks for your answers. I refer specifically to Duet gcodes. One impression I got that neither of you pointed out (assuming I'm right) is that G30 does a best fit of a plane, and G29 actually adjusts the z-height as needed across the bed, essentially adding a warp to match the uneven surface, but that non-flat adjustment continues all the way up, hence the taper-off function. In this context iby shadowphile - Delta Machines
Re: autoleveling plus mesh-bed compensation - 6 years ago
Doing some new calibrations after repairing some catastrophic damage and using the mesh-bad compensation to study the deformation of my bed plane. While back reading this I realized that I never got a clear answer: How does G30 auto-leveling compare to mesh-bed leveling? At first glance it seems like both of them just put the printing plane as a best fit of the deviations. What does G30 fix thby shadowphile - Delta Machines
Re: this is what happens when mechatronics goes bad - 6 years ago
can't argue with that dead center part, if all the flow path is mostly smooth. BTW, how does the Duet provide the steppers-getting-too-warm warning? When my system went down I lost comm with the browser so anything logged there was lost, or maybe got lost when I poked around it before realizing I might want to see what the last messages were. I will start logging to a file. Does the logging coby shadowphile - Duet
Re: this is what happens when mechatronics goes bad - 6 years ago
magnets are recessed inside the plastic forms that contact the ball. all the friction is on the plastic.by shadowphile - Duet